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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Fri Aug 29 04:01:09 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)	1022854	Change in FIB Size	-23	Change (%)	-0.002
All BGP entries (RIB)	3030760
RIB/FIB ratio (3030760/1022854)	2.9630
Valid entries	3030760
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)	3108602496
Total address space advertised (prefix length)	0.46638100
Percentage of IPv4 space advertised (3108602496/4294967295)	72.377792
Total address space advertised - corrected to 19 /8s	(data)
Average address span	3039
Average address span (as prefix size)	20.4306
Average prefix length	22.9228

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	530618	Specifics as % of FIB entries (530618/1022854)	51.8762
Specifics as % of address span (1102834749/3108602496)	35.4769
Specifics where AS prepended Path matches aggregate	234595	AS-P_Path-Match % (234595/530618)	44.21
AS Path matches aggregate	256317	AS-Path-Match % (256317/530618)	48.3054
AS Origin matches aggregate	409206	AS-Origin-Match % (409206/530618)	77.1188
Root Prefixes	492236
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	434472
Root Prefixes with depth 1	46642
Root Prefixes with depth 2	9023
Root Prefixes with depth 3	1599
Root Prefixes with depth 4	394
Root Prefixes with depth 5	75
Root Prefixes with depth 6	24
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	77529	ASes visible in only one AS path	46535
Origin only ASes	66017	Origin ASs announced via a single AS path	45974
Transit only ASes	591	Originating AS ATOM count	76938
Mixed ASes	10921	Originating AS ATOM compression	0.0752
Multi-Origin Prefixes	1963
ASes originating a single prefix	26838
Average FIB entries per Origin AS	13.2945	Maximum entries for an origin AS (AS7713)	3667
Average address range span for an origin AS	40403.9941	Maximum address range for an origin AS (AS749)	227885568

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	254837	Unique AS prepended Paths	274487
AS Paths used in FIB	128154	AS Paths using prepending	71293
AS paths associated with a single FIB entry	60941	AS Paths using private ASs	27
Average AS path length	5.2515	Number of Prefixes with Selected AS Prepending Paths	150225
Maximum AS Path length	16	Number of Prefixes with AS Prepending Paths	150225
Average address weighted AS path length	6.6051	Maximum prepended AS Path length	91
Average entries per AS Path	4.0138	Average entries per FIB AS Path	7.9814
AS Paths per origin AS	3.3122	FIB AS Paths per origin AS	1.6657
AS PATH ATOM compression	0.1253

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	580	% Prefix /13	0.06
Prefix count /14	1210	% Prefix /14	0.12
Prefix count /15	2157	% Prefix /15	0.21
Prefix count /16	13825	% Prefix /16	1.35
Prefix count /17	8350	% Prefix /17	0.82
Prefix count /18	13749	% Prefix /18	1.34
Prefix count /19	25094	% Prefix /19	2.45
Prefix count /20	46226	% Prefix /20	4.52
Prefix count /21	53391	% Prefix /21	5.22
Prefix count /22	114353	% Prefix /22	11.18
Prefix count /23	108171	% Prefix /23	10.58
Prefix count /24	634481	% Prefix /24	62.03
Prefix count /25	791	% 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	13	% 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	486	% Prefix /13	0.10
Prefix count /14	1030	% Prefix /14	0.21
Prefix count /15	1654	% Prefix /15	0.34
Prefix count /16	11036	% Prefix /16	2.24
Prefix count /17	4460	% Prefix /17	0.91
Prefix count /18	6961	% Prefix /18	1.41
Prefix count /19	14844	% Prefix /19	3.02
Prefix count /20	20482	% Prefix /20	4.16
Prefix count /21	22675	% Prefix /21	4.61
Prefix count /22	59889	% Prefix /22	12.17
Prefix count /23	43707	% Prefix /23	8.88
Prefix count /24	304587	% Prefix /24	61.88
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	241496342	% Addresses at AS distance 2	5.7
Addresses at AS distance 3	1137828743	% Addresses at AS distance 3	27.0
Addresses at AS distance 4	1987018656	% Addresses at AS distance 4	47.2
Addresses at AS distance 5	637493760	% Addresses at AS distance 5	15.1
Addresses at AS distance 6	173493376	% Addresses at AS distance 6	4.1
Addresses at AS distance 7	25067776	% Addresses at AS distance 7	0.6
Addresses at AS distance 8	8613120	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	346624	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	70656	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	1280	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	512	% 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	241501462	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1379330205	% Addresses reachable within 3 AS hops	32
Addresses reachable within 4 AS hops	3366348861	% Addresses reachable within 4 AS hops	79
Addresses reachable within 5 AS hops	4003842621	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4177335997	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4202403773	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4211016893	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4211363517	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4211434173	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4211435453	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4211435965	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4211435965	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4211435965	% Addresses reachable within 14 AS hops	99
Addresses reachable within 15 AS hops	4211437245	% 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	374	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	9529	% ASes reachable at 3 AS hops	12
ASes reachable at 4 AS hops	28849	% ASes reachable at 4 AS hops	37
ASes reachable at 5 AS hops	29380	% ASes reachable at 5 AS hops	37
ASes reachable at 6 AS hops	7408	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1513	% 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	65	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	15	% 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	377	Cumulative % ASes by AS hops 2	0.5
ASes reachable by 3 AS hops	9906	Cumulative % ASes by AS hops 3	12.8
ASes reachable by 4 AS hops	38755	Cumulative % ASes by AS hops 4	50.0
ASes reachable by 5 AS hops	68135	Cumulative % ASes by AS hops 5	87.9
ASes reachable by 6 AS hops	75543	Cumulative % ASes by AS hops 6	97.4
ASes reachable by 7 AS hops	77056	Cumulative % ASes by AS hops 7	99.4
ASes reachable by 8 AS hops	77432	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	77497	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	77512	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	77513	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	77517	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	77521	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	77525	Cumulative % ASes by AS hops 14	100.0
ASes reachable by 15 AS hops	77529	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	10512	New Entries	139	Removed Entries	164	Updated Entries	10209
		Report		Report		Report
Address Span	30022402	Address Span	128770	Address Span	69120	Address Span	29824512
Average address span per update	2856	Avg Span	926	Avg Span	421	Avg Span	2921
Average prefix size updated	22.95	Average prefix size	23.75	Average prefix size	23.72	Average prefix size	22.93
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /12 total	1	Prefix /12 announcements	0	Prefix /12 withdrawals	0	Prefix /12 path updates	1
Prefix /13 total	3	Prefix /13 announcements	0	Prefix /13 withdrawals	0	Prefix /13 path updates	3
Prefix /14 total	18	Prefix /14 announcements	0	Prefix /14 withdrawals	0	Prefix /14 path updates	18
Prefix /15 total	10	Prefix /15 announcements	0	Prefix /15 withdrawals	0	Prefix /15 path updates	10
Prefix /16 total	119	Prefix /16 announcements	1	Prefix /16 withdrawals	0	Prefix /16 path updates	118
Prefix /17 total	56	Prefix /17 announcements	0	Prefix /17 withdrawals	0	Prefix /17 path updates	56
Prefix /18 total	131	Prefix /18 announcements	0	Prefix /18 withdrawals	0	Prefix /18 path updates	131
Prefix /19 total	314	Prefix /19 announcements	1	Prefix /19 withdrawals	1	Prefix /19 path updates	312
Prefix /20 total	656	Prefix /20 announcements	2	Prefix /20 withdrawals	1	Prefix /20 path updates	653
Prefix /21 total	524	Prefix /21 announcements	3	Prefix /21 withdrawals	4	Prefix /21 path updates	517
Prefix /22 total	1095	Prefix /22 announcements	8	Prefix /22 withdrawals	7	Prefix /22 path updates	1080
Prefix /23 total	902	Prefix /23 announcements	5	Prefix /23 withdrawals	11	Prefix /23 path updates	886
Prefix /24 total	6413	Prefix /24 announcements	117	Prefix /24 withdrawals	140	Prefix /24 path updates	6156
Prefix /25 total	268	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	268
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	2	Prefix /32 announcements	2	Prefix /32 withdrawals	0	Prefix /32 path updates	0
Update rate, normalized by prefix count		Announce		Withdraw		Path Chg
Prefix /8 total	0.00	Prefix /8 announcements	0.00	Prefix /8 withdrawals	0.00	Prefix /8 path updates	0.00
Prefix /9 total	0.00	Prefix /9 announcements	0.00	Prefix /9 withdrawals	0.00	Prefix /9 path updates	0.00
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	0.33	Prefix /12 announcements	0.00	Prefix /12 withdrawals	0.00	Prefix /12 path updates	0.34
Prefix /13 total	0.50	Prefix /13 announcements	0.00	Prefix /13 withdrawals	0.00	Prefix /13 path updates	0.52
Prefix /14 total	1.45	Prefix /14 announcements	0.00	Prefix /14 withdrawals	0.00	Prefix /14 path updates	1.49
Prefix /15 total	0.45	Prefix /15 announcements	0.00	Prefix /15 withdrawals	0.00	Prefix /15 path updates	0.46
Prefix /16 total	0.84	Prefix /16 announcements	0.53	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.86
Prefix /17 total	0.65	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.67
Prefix /18 total	0.93	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.95
Prefix /19 total	1.22	Prefix /19 announcements	0.29	Prefix /19 withdrawals	0.25	Prefix /19 path updates	1.25
Prefix /20 total	1.38	Prefix /20 announcements	0.32	Prefix /20 withdrawals	0.13	Prefix /20 path updates	1.42
Prefix /21 total	0.95	Prefix /21 announcements	0.41	Prefix /21 withdrawals	0.47	Prefix /21 path updates	0.97
Prefix /22 total	0.93	Prefix /22 announcements	0.51	Prefix /22 withdrawals	0.38	Prefix /22 path updates	0.95
Prefix /23 total	0.81	Prefix /23 announcements	0.34	Prefix /23 withdrawals	0.63	Prefix /23 path updates	0.82
Prefix /24 total	0.98	Prefix /24 announcements	1.36	Prefix /24 withdrawals	1.38	Prefix /24 path updates	0.97
Prefix /25 total	32.97	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	33.95
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	14.97	Prefix /32 announcements	1132.10	Prefix /32 withdrawals	0.00	Prefix /32 path updates	0.00

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	10512.000	New Entries	139.000	Removed Entries	164.000	Updated Entries	10209.000
Address Span	30022402.000	Address Span	128770.000	Address Span	69120.000	Address Span	29824512.000
Average address span per update	2856.000	Avg Span	926.000	Avg Span	421.000	Avg Span	2921.000
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	0.000	Prefix /8 announcements	0.000	Prefix /8 withdrawals	0.000	Prefix /8 path updates	0.000
Prefix /9 update rate	0.000	Prefix /9 announcements	0.000	Prefix /9 withdrawals	0.000	Prefix /9 path updates	0.000
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	3.000	Prefix /13 announcements	0.000	Prefix /13 withdrawals	0.000	Prefix /13 path updates	3.000
Prefix /14 update rate	18.000	Prefix /14 announcements	0.000	Prefix /14 withdrawals	0.000	Prefix /14 path updates	18.000
Prefix /15 update rate	10.000	Prefix /15 announcements	0.000	Prefix /15 withdrawals	0.000	Prefix /15 path updates	10.000
Prefix /16 update rate	119.000	Prefix /16 announcements	1.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	118.000
Prefix /17 update rate	56.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	56.000
Prefix /18 update rate	131.000	Prefix /18 announcements	0.000	Prefix /18 withdrawals	0.000	Prefix /18 path updates	131.000
Prefix /19 update rate	314.000	Prefix /19 announcements	1.000	Prefix /19 withdrawals	1.000	Prefix /19 path updates	312.000
Prefix /20 update rate	656.000	Prefix /20 announcements	2.000	Prefix /20 withdrawals	1.000	Prefix /20 path updates	653.000
Prefix /21 update rate	524.000	Prefix /21 announcements	3.000	Prefix /21 withdrawals	4.000	Prefix /21 path updates	517.000
Prefix /22 update rate	1095.000	Prefix /22 announcements	8.000	Prefix /22 withdrawals	7.000	Prefix /22 path updates	1080.000
Prefix /23 update rate	902.000	Prefix /23 announcements	5.000	Prefix /23 withdrawals	11.000	Prefix /23 path updates	886.000
Prefix /24 update rate	6413.000	Prefix /24 announcements	117.000	Prefix /24 withdrawals	140.000	Prefix /24 path updates	6156.000
Prefix /25 update rate	268.000	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	268.000
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	2.000	Prefix /32 announcements	2.000	Prefix /32 withdrawals	0.000	Prefix /32 path updates	0.000

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

2287

382

234

1571

Report

/12 Tot

/12 Org

/12 Nxt

/12 Trn

/12 Fst

/12 Prp

/13 Tot

/13 Org

/13 Nxt

/13 Trn

/13 Fst

/13 Prp

/14 Tot

/14 Org

/14 Nxt

/14 Trn

/14 Fst

/14 Prp

/15 Tot

/15 Org

/15 Nxt

/15 Trn

/15 Fst

/15 Prp

/16 Tot

118

/16 Org

/16 Nxt

/16 Trn

104

/16 Fst

/16 Prp

/17 Tot

/17 Org

/17 Nxt

/17 Trn

/17 Fst

/17 Prp

/18 Tot

131

/18 Org

/18 Nxt

/18 Trn

102

/18 Fst

/18 Prp

/19 Tot

312

/19 Org

/19 Nxt

/19 Trn

247

/19 Fst

/19 Prp

/20 Tot

653

/20 Org

/20 Nxt

190

/20 Trn

429

/20 Fst

/20 Prp

/21 Tot

517

/21 Org

/21 Nxt

103

/21 Trn

343

/21 Fst

/21 Prp

/22 Tot

1080

/22 Org

/22 Nxt

216

/22 Trn

820

/22 Fst

/22 Prp

/23 Tot

886

/23 Org

/23 Nxt

249

/23 Trn

568

/23 Fst

/23 Prp

/24 Tot

6156

/24 Org

/24 Nxt

1385

/24 Trn

4297

/24 Fst

414

/24 Prp

/25 Tot

268

/25 Org

/25 Nxt

/25 Trn

/25 Fst

191

/25 Prp

/26 Tot

/26 Org

/26 Nxt

/26 Trn

/26 Fst

/26 Prp

/27 Tot

/27 Org

/27 Nxt

/27 Trn

/27 Fst

/27 Prp

/28 Tot

/28 Org

/28 Nxt

/28 Trn

/28 Fst

/28 Prp

/29 Tot

/29 Org

/29 Nxt

/29 Trn

/29 Fst

/29 Prp

/30 Tot

/30 Org

/30 Nxt

/30 Trn

/30 Fst

/30 Prp

/31 Tot

/31 Org

/31 Nxt

/31 Trn

/31 Fst

/31 Prp

/32 Tot

/32 Org

/32 Nxt

/32 Trn

/32 Fst

/32 Prp

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	43	% AS's announcing span of /8	0.0006
AS's announcing span of /9	73	% AS's announcing span of /9	0.0009
AS's announcing span of /10	100	% 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	246	% AS's announcing span of /12	0.0032
AS's announcing span of /13	403	% AS's announcing span of /13	0.0052
AS's announcing span of /14	847	% AS's announcing span of /14	0.0110
AS's announcing span of /15	1636	% AS's announcing span of /15	0.0213
AS's announcing span of /16	1778	% AS's announcing span of /16	0.0231
AS's announcing span of /17	2441	% AS's announcing span of /17	0.0318
AS's announcing span of /18	3778	% AS's announcing span of /18	0.0492
AS's announcing span of /19	5106	% AS's announcing span of /19	0.0664
AS's announcing span of /20	7661	% AS's announcing span of /20	0.0997
AS's announcing span of /21	10405	% AS's announcing span of /21	0.1354
AS's announcing span of /22	12818	% AS's announcing span of /22	0.1668
AS's announcing span of /23	10062	% AS's announcing span of /23	0.1309
AS's announcing span of /24	19236	% AS's announcing span of /24	0.2503
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.

ÿÿÿÿÿÿÿÿ ÿÿÿÿÿÿÿÿ ÿÿÿÿÿÿÿÿ

AS Connectivity Report	Data
AS Adjacency Count	130222
Average AS Connectivity Degree (260444/77529)	3.3593
Average AS Connectivity IN:OUT Degree	0.1574
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	569868	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	553015	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	391022	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	391051	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 Aug 29 04:01:09 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