BGP Home Table Reports CIDR Reports Update Reports IPv4 Reports IPv6 Reports ASN Reports Distribution Reports

AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Fri Jul 18 22:01:09 2025 (UTC+1000).

Active BGP entries (FIB)

Table Size Metrics

The trend of the size of the BGP Forwarding Table (FIB). Also the underlying BGP Routing Table (RIB). The RIB/FIB ratio is a function of the number of BGP peering sessions at the sample point. Some RIB entries are marked as unusable as an outcome of protocol operation, and these categories of unusable advertisements are tracked.

FIB / RIB Table Reports (plots)	Data Sets(txt)
Active BGP entries (FIB)	1014701	Change in FIB Size	-66	Change (%)	-0.007
All BGP entries (RIB)	3005236
RIB/FIB ratio (3005236/1014701)	2.9617
Valid entries	3005236
Suppressed RIB entries	0
Damped entries	0
History entries	0

Address Span Metrics

The total span of address space advertised in the BGP table, and the relationship of this value to the number and size of address prefix objects in the table.

Address Space Reports (plots)	Data Sets(txt)
Total address space advertised (/32 equiv)	3108398976
Total address space advertised (prefix length)	0.46647545
Percentage of IPv4 space advertised (3108398976/4294967295)	72.373053
Total address space advertised - corrected to 19 /8s	(data)
Average address span	3063
Average address span (as prefix size)	20.4193
Average prefix length	22.9194

More Specifics

The characteristics of more specific advertisements - where an advertisement is associated with a sub-span of address space of another advertisement. The metrics also look at the degree of similarity of the AS paths of the specific advertisements to the encompassing aggregate.

More-Specific Advertisement Reports (plots)	Data Sets(txt)	Percentage Reports (plots)	Data Sets(txt)
Entries advertising more specific prefixes of aggregates	527832	Specifics as % of FIB entries (527832/1014701)	52.0185
Specifics as % of address span (1099807571/3108398976)	35.3818
Specifics where AS prepended Path matches aggregate	224932	AS-P_Path-Match % (224932/527832)	42.61
AS Path matches aggregate	244577	AS-Path-Match % (244577/527832)	46.3361
AS Origin matches aggregate	405637	AS-Origin-Match % (405637/527832)	76.8496
Root Prefixes	486869
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	429332
Root Prefixes with depth 1	46391
Root Prefixes with depth 2	9045
Root Prefixes with depth 3	1607
Root Prefixes with depth 4	389
Root Prefixes with depth 5	76
Root Prefixes with depth 6	22
Root Prefixes with depth 7	6
Root Prefixes with depth 8	1

AS Numbers

The time trend of the number of unique AS numbers advertised within the BGP table. The associated metrics characterise AS's into origin only, transit only, or mixed (origin and transit), and also look at the trends of advertised address space as related to the number of ASes.

AS Reports (plots)	Data Sets(txt)	Additional Reports (plots)	Data Sets(txt)
Unique ASes	77298	ASes visible in only one AS path	45792
Origin only ASes	65789	Origin ASs announced via a single AS path	45231
Transit only ASes	612	Originating AS ATOM count	76686
Mixed ASes	10897	Originating AS ATOM compression	0.0756
Multi-Origin Prefixes	1938
ASes originating a single prefix	26759
Average FIB entries per Origin AS	13.2319	Maximum entries for an origin AS (AS9009)	3792
Average address range span for an origin AS	40534.1128	Maximum address range for an origin AS (AS749)	227886080

AS Paths

The time trend of the number of unique AS Paths advertised within the BGP table. The associated metrics look at trends of average path length, and BGP table entries per path.

AS Reports (plots)	Data Sets(txt)	Additional Reports (plots)	Data Sets(txt)
Unique AS Paths	251022	Unique AS prepended Paths	270598
AS Paths used in FIB	130092	AS Paths using prepending	70798
AS paths associated with a single FIB entry	62239	AS Paths using private ASs	33
Average AS path length	5.2521	Number of Prefixes with Selected AS Prepending Paths	153801
Maximum AS Path length	16	Number of Prefixes with AS Prepending Paths	153801
Average address weighted AS path length	6.6002	Maximum prepended AS Path length	91
Average entries per AS Path	4.0423	Average entries per FIB AS Path	7.7999
AS Paths per origin AS	3.2734	FIB AS Paths per origin AS	1.6964
AS PATH ATOM compression	0.1282

Prefix Length Distributions

The time trend of the distribution of BGP Table entries by address prefix length.

Prefix Length Reports (plots)	Data Sets(txt)	Percentage Reports (plots)	Data Sets(txt)
Prefix Count	(data)	% Prefix distribution	(data)
Prefix count /8	16	% Prefix /8	0.00
Prefix count /9	14	% Prefix /9	0.00
Prefix count /10	41	% Prefix /10	0.00
Prefix count /11	92	% Prefix /11	0.01
Prefix count /12	298	% Prefix /12	0.03
Prefix count /13	582	% Prefix /13	0.06
Prefix count /14	1211	% Prefix /14	0.12
Prefix count /15	2157	% Prefix /15	0.21
Prefix count /16	13827	% Prefix /16	1.36
Prefix count /17	8373	% Prefix /17	0.83
Prefix count /18	13791	% Prefix /18	1.36
Prefix count /19	25039	% Prefix /19	2.47
Prefix count /20	45578	% Prefix /20	4.49
Prefix count /21	53258	% Prefix /21	5.25
Prefix count /22	113418	% Prefix /22	11.18
Prefix count /23	107697	% Prefix /23	10.61
Prefix count /24	628473	% Prefix /24	61.94
Prefix count /25	799	% Prefix /25	0.08
Prefix count /26	0	% Prefix /26	0.00
Prefix count /27	1	% Prefix /27	0.00
Prefix count /28	1	% Prefix /28	0.00
Prefix count /29	0	% Prefix /29	0.00
Prefix count /30	0	% Prefix /30	0.00
Prefix count /31	0	% Prefix /31	0.00
Prefix count /32	35	% Prefix /32	0.00

Root Prefix Length Distributions

The time trend of the distribution of Root BGP Table entries by address prefix length.

Root Prefix Length Reports (plots)	Data Sets(txt)	Percentage Reports (plots)	Data Sets(txt)
Root Prefix Count	(data)	% Prefix distribution	(data)
Prefix count /8	16	% Prefix /8	0.00
Prefix count /9	9	% Prefix /9	0.00
Prefix count /10	41	% Prefix /10	0.01
Prefix count /11	85	% Prefix /11	0.02
Prefix count /12	263	% Prefix /12	0.05
Prefix count /13	488	% Prefix /13	0.10
Prefix count /14	1031	% Prefix /14	0.21
Prefix count /15	1654	% Prefix /15	0.34
Prefix count /16	11053	% Prefix /16	2.27
Prefix count /17	4469	% Prefix /17	0.92
Prefix count /18	6977	% Prefix /18	1.43
Prefix count /19	14816	% Prefix /19	3.04
Prefix count /20	20269	% Prefix /20	4.16
Prefix count /21	22507	% Prefix /21	4.62
Prefix count /22	59464	% Prefix /22	12.21
Prefix count /23	43190	% Prefix /23	8.87
Prefix count /24	300526	% Prefix /24	61.73
Prefix count /25	11	% Prefix /25	0.00
Prefix count /26	0	% Prefix /26	0.00
Prefix count /27	0	% Prefix /27	0.00
Prefix count /28	0	% Prefix /28	0.00
Prefix count /29	0	% Prefix /29	0.00
Prefix count /30	0	% Prefix /30	0.00
Prefix count /31	0	% Prefix /31	0.00
Prefix count /32	0	% Prefix /32	0.00

AS Diameter Reports

The time trend of the reacahbility of addresses and AS's using AS distance from the sample point to the origin AS as the diameter metric.

AS Diameter Reports (plots)	Data Sets(txt)	Percentage Reports (plots)	Data Sets(txt)
Addresses by AS distance	(data)	Address percentage by AS distance	(data)
Addresses at AS distance 0	256	% Addresses at AS distance 0	0.0
Addresses at AS distance 1	4864	% Addresses at AS distance 1	0.0
Addresses at AS distance 2	241064468	% Addresses at AS distance 2	5.7
Addresses at AS distance 3	1132554119	% Addresses at AS distance 3	26.9
Addresses at AS distance 4	1991592888	% Addresses at AS distance 4	47.3
Addresses at AS distance 5	633138560	% Addresses at AS distance 5	15.0
Addresses at AS distance 6	181787648	% Addresses at AS distance 6	4.3
Addresses at AS distance 7	19560448	% Addresses at AS distance 7	0.5
Addresses at AS distance 8	8137984	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	298240	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	64256	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	512	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	1024	% Addresses at AS distance 12	0.0
Addresses at AS distance 13	0	% Addresses at AS distance 13	0.0
Addresses at AS distance 14	0	% Addresses at AS distance 14	0.0
Addresses at AS distance 15	1280	% Addresses at AS distance 15	0.0

Cumulative Address by AS distance	(data)	Cumulative % Address by AS distance	(data)
Addresses reachable within 0 AS hops	256	% Addresses reachable within 0 AS hops	0
Addresses reachable within 1 AS hops	5120	% Addresses reachable within 1 AS hops	0
Addresses reachable within 2 AS hops	241069588	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1373623707	% Addresses reachable within 3 AS hops	32
Addresses reachable within 4 AS hops	3365216595	% Addresses reachable within 4 AS hops	79
Addresses reachable within 5 AS hops	3998355155	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4180142803	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4199703251	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4207841235	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4208139475	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4208203731	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4208204243	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4208205267	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4208205267	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4208205267	% Addresses reachable within 14 AS hops	99
Addresses reachable within 15 AS hops	4208206547	% Addresses reachable within 15 AS hops	100

ASes by AS distance	(data)	% ASes by AS hops	(data)
ASes reachable at 0 AS hops	1	% ASes reachable at 0 AS hops	0
ASes reachable at 1 AS hops	2	% ASes reachable at 1 AS hops	0
ASes reachable at 2 AS hops	363	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	9637	% ASes reachable at 3 AS hops	12
ASes reachable at 4 AS hops	28969	% ASes reachable at 4 AS hops	37
ASes reachable at 5 AS hops	28855	% ASes reachable at 5 AS hops	37
ASes reachable at 6 AS hops	7490	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1514	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	376	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	63	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	11	% ASes reachable at 10 AS hops	0
ASes reachable at 11 AS hops	1	% ASes reachable at 11 AS hops	0
ASes reachable at 12 AS hops	4	% ASes reachable at 12 AS hops	0
ASes reachable at 13 AS hops	4	% ASes reachable at 13 AS hops	0
ASes reachable at 14 AS hops	4	% ASes reachable at 14 AS hops	0
ASes reachable at 15 AS hops	4	% ASes reachable at 15 AS hops	0

Cumulative ASes by AS hops	(data)	Cumulative % ASes by AS hops	(data)
ASes reachable by 0 AS hops	1	Cumulative % ASes by AS hops 0	0.0
ASes reachable by 1 AS hops	3	Cumulative % ASes by AS hops 1	0.0
ASes reachable by 2 AS hops	366	Cumulative % ASes by AS hops 2	0.5
ASes reachable by 3 AS hops	10003	Cumulative % ASes by AS hops 3	12.9
ASes reachable by 4 AS hops	38972	Cumulative % ASes by AS hops 4	50.4
ASes reachable by 5 AS hops	67827	Cumulative % ASes by AS hops 5	87.7
ASes reachable by 6 AS hops	75317	Cumulative % ASes by AS hops 6	97.4
ASes reachable by 7 AS hops	76831	Cumulative % ASes by AS hops 7	99.4
ASes reachable by 8 AS hops	77207	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	77270	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	77281	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	77282	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	77286	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	77290	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	77294	Cumulative % ASes by AS hops 14	100.0
ASes reachable by 15 AS hops	77298	Cumulative % ASes by AS hops 15	100.0

BGP Update Reports

Compares the current BGP Table with the previous table and reports on the number of changes in the FIB. These changes are further categorised into announcements, withdrawls and path changes, and further categorised by prefix length.

FIB Update Reports	Data	Announce	Data	Withdraw	Data	Path Chg	Data
Table Updates	2293	New Entries	105	Removed Entries	176	Updated Entries	2012
		Report		Report		Report
Address Span	51295749	Address Span	42496	Address Span	98560	Address Span	51154693
Average address span per update	22370	Avg Span	404	Avg Span	560	Avg Span	25424
Average prefix size updated	23.05	Average prefix size	23.59	Average prefix size	23.44	Average prefix size	22.99
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /8 total	2	Prefix /8 announcements	0	Prefix /8 withdrawals	0	Prefix /8 path updates	2
Prefix /9 total	1	Prefix /9 announcements	0	Prefix /9 withdrawals	0	Prefix /9 path updates	1
Prefix /10 total	0	Prefix /10 announcements	0	Prefix /10 withdrawals	0	Prefix /10 path updates	0
Prefix /11 total	0	Prefix /11 announcements	0	Prefix /11 withdrawals	0	Prefix /11 path updates	0
Prefix /12 total	1	Prefix /12 announcements	0	Prefix /12 withdrawals	0	Prefix /12 path updates	1
Prefix /13 total	1	Prefix /13 announcements	0	Prefix /13 withdrawals	0	Prefix /13 path updates	1
Prefix /14 total	4	Prefix /14 announcements	0	Prefix /14 withdrawals	0	Prefix /14 path updates	4
Prefix /15 total	9	Prefix /15 announcements	0	Prefix /15 withdrawals	0	Prefix /15 path updates	9
Prefix /16 total	48	Prefix /16 announcements	0	Prefix /16 withdrawals	0	Prefix /16 path updates	48
Prefix /17 total	14	Prefix /17 announcements	0	Prefix /17 withdrawals	0	Prefix /17 path updates	14
Prefix /18 total	20	Prefix /18 announcements	0	Prefix /18 withdrawals	0	Prefix /18 path updates	20
Prefix /19 total	43	Prefix /19 announcements	0	Prefix /19 withdrawals	2	Prefix /19 path updates	41
Prefix /20 total	73	Prefix /20 announcements	0	Prefix /20 withdrawals	1	Prefix /20 path updates	72
Prefix /21 total	97	Prefix /21 announcements	2	Prefix /21 withdrawals	5	Prefix /21 path updates	90
Prefix /22 total	271	Prefix /22 announcements	10	Prefix /22 withdrawals	27	Prefix /22 path updates	234
Prefix /23 total	353	Prefix /23 announcements	17	Prefix /23 withdrawals	16	Prefix /23 path updates	320
Prefix /24 total	1081	Prefix /24 announcements	76	Prefix /24 withdrawals	125	Prefix /24 path updates	880
Prefix /25 total	270	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	270
Prefix /26 total	0	Prefix /26 announcements	0	Prefix /26 withdrawals	0	Prefix /26 path updates	0
Prefix /27 total	0	Prefix /27 announcements	0	Prefix /27 withdrawals	0	Prefix /27 path updates	0
Prefix /28 total	0	Prefix /28 announcements	0	Prefix /28 withdrawals	0	Prefix /28 path updates	0
Prefix /29 total	0	Prefix /29 announcements	0	Prefix /29 withdrawals	0	Prefix /29 path updates	0
Prefix /30 total	0	Prefix /30 announcements	0	Prefix /30 withdrawals	0	Prefix /30 path updates	0
Prefix /31 total	0	Prefix /31 announcements	0	Prefix /31 withdrawals	0	Prefix /31 path updates	0
Prefix /32 total	5	Prefix /32 announcements	0	Prefix /32 withdrawals	0	Prefix /32 path updates	5
Update rate, normalized by prefix count		Announce		Withdraw		Path Chg
Prefix /8 total	55.32	Prefix /8 announcements	0.00	Prefix /8 withdrawals	0.00	Prefix /8 path updates	63.04
Prefix /9 total	31.61	Prefix /9 announcements	0.00	Prefix /9 withdrawals	0.00	Prefix /9 path updates	36.02
Prefix /10 total	0.00	Prefix /10 announcements	0.00	Prefix /10 withdrawals	0.00	Prefix /10 path updates	0.00
Prefix /11 total	0.00	Prefix /11 announcements	0.00	Prefix /11 withdrawals	0.00	Prefix /11 path updates	0.00
Prefix /12 total	1.48	Prefix /12 announcements	0.00	Prefix /12 withdrawals	0.00	Prefix /12 path updates	1.69
Prefix /13 total	0.76	Prefix /13 announcements	0.00	Prefix /13 withdrawals	0.00	Prefix /13 path updates	0.87
Prefix /14 total	1.46	Prefix /14 announcements	0.00	Prefix /14 withdrawals	0.00	Prefix /14 path updates	1.67
Prefix /15 total	1.85	Prefix /15 announcements	0.00	Prefix /15 withdrawals	0.00	Prefix /15 path updates	2.10
Prefix /16 total	1.54	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	1.75
Prefix /17 total	0.74	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.84
Prefix /18 total	0.64	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.73
Prefix /19 total	0.76	Prefix /19 announcements	0.00	Prefix /19 withdrawals	0.46	Prefix /19 path updates	0.83
Prefix /20 total	0.71	Prefix /20 announcements	0.00	Prefix /20 withdrawals	0.13	Prefix /20 path updates	0.80
Prefix /21 total	0.81	Prefix /21 announcements	0.36	Prefix /21 withdrawals	0.54	Prefix /21 path updates	0.85
Prefix /22 total	1.06	Prefix /22 announcements	0.85	Prefix /22 withdrawals	1.37	Prefix /22 path updates	1.04
Prefix /23 total	1.45	Prefix /23 announcements	1.53	Prefix /23 withdrawals	0.86	Prefix /23 path updates	1.50
Prefix /24 total	0.76	Prefix /24 announcements	1.17	Prefix /24 withdrawals	1.15	Prefix /24 path updates	0.71
Prefix /25 total	149.54	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	170.42
Prefix /26 total	0.00	Prefix /26 announcements	100.00	Prefix /26 withdrawals	100.00	Prefix /26 path updates	100.00
Prefix /27 total	0.00	Prefix /27 announcements	0.00	Prefix /27 withdrawals	0.00	Prefix /27 path updates	0.00
Prefix /28 total	0.00	Prefix /28 announcements	0.00	Prefix /28 withdrawals	0.00	Prefix /28 path updates	0.00
Prefix /29 total	0.00	Prefix /29 announcements	100.00	Prefix /29 withdrawals	100.00	Prefix /29 path updates	100.00
Prefix /30 total	0.00	Prefix /30 announcements	100.00	Prefix /30 withdrawals	100.00	Prefix /30 path updates	100.00
Prefix /31 total	0.00	Prefix /31 announcements	100.00	Prefix /31 withdrawals	100.00	Prefix /31 path updates	100.00
Prefix /32 total	63.22	Prefix /32 announcements	0.00	Prefix /32 withdrawals	0.00	Prefix /32 path updates	72.05

FIB Update Rate Reports Updates per hour (Measurement Period 1 hrs 0 mins)	Data	Announce Rate	Data	Withdraw Rate	Data	Path Chg Rate	Data
Table Updates	2293.000	New Entries	105.000	Removed Entries	176.000	Updated Entries	2012.000
Address Span	51295748.000	Address Span	42496.000	Address Span	98560.000	Address Span	51154692.000
Average address span per update	22370.000	Avg Span	404.000	Avg Span	560.000	Avg Span	25424.000
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /1 update rate	0.000	Prefix /1 announcements	0.000	Prefix /1 withdrawals	0.000	Prefix /1 path updates	0.000
Prefix /2 update rate	0.000	Prefix /2 announcements	0.000	Prefix /2 withdrawals	0.000	Prefix /2 path updates	0.000
Prefix /3 update rate	0.000	Prefix /3 announcements	0.000	Prefix /3 withdrawals	0.000	Prefix /3 path updates	0.000
Prefix /4 update rate	0.000	Prefix /4 announcements	0.000	Prefix /4 withdrawals	0.000	Prefix /4 path updates	0.000
Prefix /5 update rate	0.000	Prefix /5 announcements	0.000	Prefix /5 withdrawals	0.000	Prefix /5 path updates	0.000
Prefix /6 update rate	0.000	Prefix /6 announcements	0.000	Prefix /6 withdrawals	0.000	Prefix /6 path updates	0.000
Prefix /7 update rate	0.000	Prefix /7 announcements	0.000	Prefix /7 withdrawals	0.000	Prefix /7 path updates	0.000
Prefix /8 update rate	2.000	Prefix /8 announcements	0.000	Prefix /8 withdrawals	0.000	Prefix /8 path updates	2.000
Prefix /9 update rate	1.000	Prefix /9 announcements	0.000	Prefix /9 withdrawals	0.000	Prefix /9 path updates	1.000
Prefix /10 update rate	0.000	Prefix /10 announcements	0.000	Prefix /10 withdrawals	0.000	Prefix /10 path updates	0.000
Prefix /11 update rate	0.000	Prefix /11 announcements	0.000	Prefix /11 withdrawals	0.000	Prefix /11 path updates	0.000
Prefix /12 update rate	1.000	Prefix /12 announcements	0.000	Prefix /12 withdrawals	0.000	Prefix /12 path updates	1.000
Prefix /13 update rate	1.000	Prefix /13 announcements	0.000	Prefix /13 withdrawals	0.000	Prefix /13 path updates	1.000
Prefix /14 update rate	4.000	Prefix /14 announcements	0.000	Prefix /14 withdrawals	0.000	Prefix /14 path updates	4.000
Prefix /15 update rate	9.000	Prefix /15 announcements	0.000	Prefix /15 withdrawals	0.000	Prefix /15 path updates	9.000
Prefix /16 update rate	48.000	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	48.000
Prefix /17 update rate	14.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	14.000
Prefix /18 update rate	20.000	Prefix /18 announcements	0.000	Prefix /18 withdrawals	0.000	Prefix /18 path updates	20.000
Prefix /19 update rate	43.000	Prefix /19 announcements	0.000	Prefix /19 withdrawals	2.000	Prefix /19 path updates	41.000
Prefix /20 update rate	73.000	Prefix /20 announcements	0.000	Prefix /20 withdrawals	1.000	Prefix /20 path updates	72.000
Prefix /21 update rate	97.000	Prefix /21 announcements	2.000	Prefix /21 withdrawals	5.000	Prefix /21 path updates	90.000
Prefix /22 update rate	271.000	Prefix /22 announcements	10.000	Prefix /22 withdrawals	27.000	Prefix /22 path updates	234.000
Prefix /23 update rate	353.000	Prefix /23 announcements	17.000	Prefix /23 withdrawals	16.000	Prefix /23 path updates	320.000
Prefix /24 update rate	1081.000	Prefix /24 announcements	76.000	Prefix /24 withdrawals	125.000	Prefix /24 path updates	880.000
Prefix /25 update rate	270.000	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	270.000
Prefix /26 update rate	0.000	Prefix /26 announcements	0.000	Prefix /26 withdrawals	0.000	Prefix /26 path updates	0.000
Prefix /27 update rate	0.000	Prefix /27 announcements	0.000	Prefix /27 withdrawals	0.000	Prefix /27 path updates	0.000
Prefix /28 update rate	0.000	Prefix /28 announcements	0.000	Prefix /28 withdrawals	0.000	Prefix /28 path updates	0.000
Prefix /29 update rate	0.000	Prefix /29 announcements	0.000	Prefix /29 withdrawals	0.000	Prefix /29 path updates	0.000
Prefix /30 update rate	0.000	Prefix /30 announcements	0.000	Prefix /30 withdrawals	0.000	Prefix /30 path updates	0.000
Prefix /31 update rate	0.000	Prefix /31 announcements	0.000	Prefix /31 withdrawals	0.000	Prefix /31 path updates	0.000
Prefix /32 update rate	5.000	Prefix /32 announcements	0.000	Prefix /32 withdrawals	0.000	Prefix /32 path updates	5.000

Path Updates - Breakdown by Update Type

Examines those updates that involved a change of AS Path and breaks this down into five categories:

A change of origin AS (origin)
A change in the origin's nexthop AS (remote change)
A change in the transit AS path (transit)
A change in the firsthop AS (Local change)
A change in AS prepending (Traffic Engineering)

Total	Data	Origin	Data	Origin Next Hop	Data	Transit	Data	First Hop	Data	Prepend	Data
Total Path Changes	615	Origin Paths	58	NextHop Paths	148	Transit Paths	217	Paths	174	Paths	18
Report
/8 Tot	2	/8 Org	0	/8 Nxt	0	/8 Trn	0	/8 Fst	2	/8 Prp	0
/9 Tot	1	/9 Org	0	/9 Nxt	0	/9 Trn	0	/9 Fst	1	/9 Prp	0
/10 Tot	0	/10 Org	0	/10 Nxt	0	/10 Trn	0	/10 Fst	0	/10 Prp	0
/11 Tot	0	/11 Org	0	/11 Nxt	0	/11 Trn	0	/11 Fst	0	/11 Prp	0
/12 Tot	1	/12 Org	0	/12 Nxt	0	/12 Trn	0	/12 Fst	1	/12 Prp	0
/13 Tot	1	/13 Org	0	/13 Nxt	0	/13 Trn	0	/13 Fst	1	/13 Prp	0
/14 Tot	4	/14 Org	0	/14 Nxt	0	/14 Trn	0	/14 Fst	4	/14 Prp	0
/15 Tot	9	/15 Org	0	/15 Nxt	0	/15 Trn	0	/15 Fst	9	/15 Prp	0
/16 Tot	48	/16 Org	0	/16 Nxt	0	/16 Trn	2	/16 Fst	45	/16 Prp	1
/17 Tot	14	/17 Org	0	/17 Nxt	0	/17 Trn	0	/17 Fst	13	/17 Prp	1
/18 Tot	20	/18 Org	0	/18 Nxt	1	/18 Trn	0	/18 Fst	17	/18 Prp	2
/19 Tot	41	/19 Org	0	/19 Nxt	1	/19 Trn	1	/19 Fst	34	/19 Prp	5
/20 Tot	72	/20 Org	0	/20 Nxt	6	/20 Trn	18	/20 Fst	43	/20 Prp	5
/21 Tot	90	/21 Org	0	/21 Nxt	9	/21 Trn	19	/21 Fst	48	/21 Prp	14
/22 Tot	234	/22 Org	0	/22 Nxt	41	/22 Trn	98	/22 Fst	87	/22 Prp	8
/23 Tot	320	/23 Org	0	/23 Nxt	36	/23 Trn	117	/23 Fst	134	/23 Prp	33
/24 Tot	880	/24 Org	5	/24 Nxt	181	/24 Trn	176	/24 Fst	476	/24 Prp	42
/25 Tot	270	/25 Org	58	/25 Nxt	17	/25 Trn	0	/25 Fst	195	/25 Prp	0
/26 Tot	0	/26 Org	0	/26 Nxt	0	/26 Trn	0	/26 Fst	0	/26 Prp	0
/27 Tot	0	/27 Org	0	/27 Nxt	0	/27 Trn	0	/27 Fst	0	/27 Prp	0
/28 Tot	0	/28 Org	0	/28 Nxt	0	/28 Trn	0	/28 Fst	0	/28 Prp	0
/29 Tot	0	/29 Org	0	/29 Nxt	0	/29 Trn	0	/29 Fst	0	/29 Prp	0
/30 Tot	0	/30 Org	0	/30 Nxt	0	/30 Trn	0	/30 Fst	0	/30 Prp	0
/31 Tot	0	/31 Org	0	/31 Nxt	0	/31 Trn	0	/31 Fst	0	/31 Prp	0
/32 Tot	5	/32 Org	0	/32 Nxt	0	/32 Trn	0	/32 Fst	5	/32 Prp	0

AS Announcement Reports

The time trend of total span of address space advertised by ASes, using truncated prefix length as the span metric.

AS Announcements Reports	Data Sets(txt)	Percentage Reports	Data
Originating Addresses AS Count	(data)	Originating Addresses % AS Count	(data)
AS's announcing span of /4	2	% AS's announcing span of /4	0.0000
AS's announcing span of /5	5	% AS's announcing span of /5	0.0001
AS's announcing span of /6	11	% AS's announcing span of /6	0.0001
AS's announcing span of /7	20	% AS's announcing span of /7	0.0003
AS's announcing span of /8	44	% AS's announcing span of /8	0.0006
AS's announcing span of /9	72	% AS's announcing span of /9	0.0009
AS's announcing span of /10	102	% AS's announcing span of /10	0.0013
AS's announcing span of /11	171	% AS's announcing span of /11	0.0022
AS's announcing span of /12	248	% AS's announcing span of /12	0.0032
AS's announcing span of /13	398	% AS's announcing span of /13	0.0052
AS's announcing span of /14	851	% AS's announcing span of /14	0.0111
AS's announcing span of /15	1637	% AS's announcing span of /15	0.0214
AS's announcing span of /16	1786	% AS's announcing span of /16	0.0233
AS's announcing span of /17	2425	% AS's announcing span of /17	0.0317
AS's announcing span of /18	3761	% AS's announcing span of /18	0.0491
AS's announcing span of /19	5154	% AS's announcing span of /19	0.0673
AS's announcing span of /20	7601	% AS's announcing span of /20	0.0992
AS's announcing span of /21	10393	% AS's announcing span of /21	0.1357
AS's announcing span of /22	12796	% AS's announcing span of /22	0.1670
AS's announcing span of /23	9968	% AS's announcing span of /23	0.1301
AS's announcing span of /24	19153	% AS's announcing span of /24	0.2500
AS's announcing span of /25	16	% AS's announcing span of /25	0.0002
AS's announcing span of /26	0	% AS's announcing span of /26	0.0000
AS's announcing span of /27	0	% AS's announcing span of /27	0.0000
AS's announcing span of /28	0	% AS's announcing span of /28	0.0000
AS's announcing span of /29	0	% AS's announcing span of /29	0.0000
AS's announcing span of /30	0	% AS's announcing span of /30	0.0000
AS's announcing span of /31	0	% AS's announcing span of /31	0.0000
AS's announcing span of /32	0	% AS's announcing span of /32	0.0000

AS Connectivity Reports

This set of reports lists all visible AS's using a number of ordering criteria. The reports order AS's by the total span of addresses originated by an AS, the total span of addresses reachable via an AS, and the totspan of originating plus transit addresses via each AS. Each AS in an AS path has an adjacent AS closer to the sample point, and an adjacent AS further from the sample point. The number of such pairwise adjacencies is reported for each AS. The average AS Connectivity Degree is the average number of adjacent AS's for an AS.

h h h

AS Connectivity Report	Data
AS Adjacency Count	129200
Average AS Connectivity Degree (258400/77298)	3.3429
Average AS Connectivity IN:OUT Degree	0.1575
AS Names
AS's ordered by Originating Address
AS's ordered by Transit Address
AS's ordered by Originating + Transit Address
AS's ordered by AS Adjacency
AS's ordered by Downstream AS Adjacency
AS's ordered by Upstream AS Adjacency
AS Adjacency
Inconsistent Origin AS Prefixes

Aggregation Reports

This set of reports lists all potential aggregation of a number of specific routes into an aggregate route. The aggregation criteria include a match of the original AS path, which may include prepended AS's, a match of the reduced AS Path, and a match on the Origin AS only. As this view is taken from a single sample point, this list is not definitive, and the report will propose potential aggregation actions which may not be feasible for the Origin AS. The report also applies a prefix length filter to all prefixes, accepting only those prefixes which pass the following ruleset:

24.0.0.0/8 accept prefix length <=20
61.0.0.0/8 accept prefix length <= 20
63.0.0.0/8 accept prefix length <= 20
64.0.0.0/8 accept prefix length <= 20
65.0.0.0/8 accept prefix length <= 20
66.0.0.0/8 accept prefix length <= 20
0.0.0.0/1 (0.0.0.0/8 through 126.0.0.0/8) accept prefix length <= 19
128.0.0.0/2 (128.0.0.0/8 through 191.0.0.0/8) accept prefix length <= 16
192.0.0.0/8 through 204.0.0.0/8 accept prefix length <=24
205.0.0.0/8 through 255.0.0.0/8 accept prefix length <=20

Aggregation possibilities are identified within this filtered prefix set.

Route Aggregation Reports	Data
Aggregation Potential Summary	(data)
Aggregation Potential Summary	(data)
Aggregation using prepended AS Path	575187	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	559197	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	387064	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	387087	Report (sort by %reduction)	Report (sort by reduction)	BGP Table

BGP Table

Table Summary Report

BGP Report

BGP data obtained from the boundary of AS65000

Report last updated at Fri Jul 18 22:01:09 2025 (UTC+1000).

Data prior to 11 April 97 interpreted from data gathered by Erik-Jan Bos, SURFnet.

BGP table analyser written and maintained by Geoff Huston.

Footnote

The name is a reference to a graph of the data. If the data is a single series then this is a simple time-series plot. If the data is a multi-series vector, the first graph is a compound graph of the time series of each element in the vector, the second is a relative plot using a common start point and looking at the relative change in the value of each element of the vector. The third is a relative plot, normalizing the start point to zero and looking at the absolute change in each element of the vector. The last isa distribution graph.
The value is a reference to the text raw data file. The text file uses a column format, with the first column representing the measurement time. The time base is the number of seconds since 1 January 1970 UTC. If you wish to convert this to Microsoft Excel time format, then divide this time