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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Mon Dec 15 10:01:10 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)	1046043	Change in FIB Size	-90	Change (%)	-0.009
All BGP entries (RIB)	3100250
RIB/FIB ratio (3100250/1046043)	2.9638
Valid entries	3100250
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)	3106008704
Total address space advertised (prefix length)	0.46758527
Percentage of IPv4 space advertised (3106008704/4294967295)	72.317401
Total address space advertised - corrected to 19 /8s	(data)
Average address span	2969
Average address span (as prefix size)	20.4642
Average prefix length	22.9395

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	541448	Specifics as % of FIB entries (541448/1046043)	51.7615
Specifics as % of address span (1110749448/3106008704)	35.7613
Specifics where AS prepended Path matches aggregate	226394	AS-P_Path-Match % (226394/541448)	41.81
AS Path matches aggregate	243969	AS-Path-Match % (243969/541448)	45.0586
AS Origin matches aggregate	416865	AS-Origin-Match % (416865/541448)	76.9908
Root Prefixes	504595
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	446201
Root Prefixes with depth 1	47221
Root Prefixes with depth 2	9098
Root Prefixes with depth 3	1583
Root Prefixes with depth 4	384
Root Prefixes with depth 5	74
Root Prefixes with depth 6	26
Root Prefixes with depth 7	7
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	77907	ASes visible in only one AS path	45582
Origin only ASes	66491	Origin ASs announced via a single AS path	45033
Transit only ASes	598	Originating AS ATOM count	77309
Mixed ASes	10818	Originating AS ATOM compression	0.0739
Multi-Origin Prefixes	1951
ASes originating a single prefix	26996
Average FIB entries per Origin AS	13.5307	Maximum entries for an origin AS (AS7713)	3731
Average address range span for an origin AS	40176.5474	Maximum address range for an origin AS (AS749)	227795712

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	265702	Unique AS prepended Paths	282521
AS Paths used in FIB	136297	AS Paths using prepending	63903
AS paths associated with a single FIB entry	65900	AS Paths using private ASs	25
Average AS path length	5.1981	Number of Prefixes with Selected AS Prepending Paths	137002
Maximum AS Path length	15	Number of Prefixes with AS Prepending Paths	137002
Average address weighted AS path length	6.5286	Maximum prepended AS Path length	91
Average entries per AS Path	3.9369	Average entries per FIB AS Path	7.6747
AS Paths per origin AS	3.4369	FIB AS Paths per origin AS	1.7630
AS PATH ATOM compression	0.1303

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	93	% Prefix /11	0.01
Prefix count /12	299	% Prefix /12	0.03
Prefix count /13	582	% Prefix /13	0.06
Prefix count /14	1204	% Prefix /14	0.12
Prefix count /15	2109	% Prefix /15	0.20
Prefix count /16	13753	% Prefix /16	1.31
Prefix count /17	8386	% Prefix /17	0.80
Prefix count /18	13805	% Prefix /18	1.32
Prefix count /19	25344	% Prefix /19	2.42
Prefix count /20	46748	% Prefix /20	4.47
Prefix count /21	53702	% Prefix /21	5.13
Prefix count /22	115076	% Prefix /22	11.00
Prefix count /23	110337	% Prefix /23	10.55
Prefix count /24	653825	% Prefix /24	62.50
Prefix count /25	696	% Prefix /25	0.07
Prefix count /26	1	% Prefix /26	0.00
Prefix count /27	1	% Prefix /27	0.00
Prefix count /28	1	% Prefix /28	0.00
Prefix count /29	2	% Prefix /29	0.00
Prefix count /30	0	% Prefix /30	0.00
Prefix count /31	0	% Prefix /31	0.00
Prefix count /32	8	% 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	88	% Prefix /11	0.02
Prefix count /12	261	% Prefix /12	0.05
Prefix count /13	486	% Prefix /13	0.10
Prefix count /14	1026	% Prefix /14	0.20
Prefix count /15	1630	% Prefix /15	0.32
Prefix count /16	10917	% Prefix /16	2.16
Prefix count /17	4454	% Prefix /17	0.88
Prefix count /18	6996	% Prefix /18	1.39
Prefix count /19	14901	% Prefix /19	2.95
Prefix count /20	20525	% Prefix /20	4.07
Prefix count /21	22939	% Prefix /21	4.55
Prefix count /22	60221	% Prefix /22	11.93
Prefix count /23	44834	% Prefix /23	8.89
Prefix count /24	315242	% Prefix /24	62.47
Prefix count /25	9	% 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	235914598	% Addresses at AS distance 2	5.6
Addresses at AS distance 3	1285624834	% Addresses at AS distance 3	30.5
Addresses at AS distance 4	1958190112	% Addresses at AS distance 4	46.4
Addresses at AS distance 5	553200384	% Addresses at AS distance 5	13.1
Addresses at AS distance 6	162210048	% Addresses at AS distance 6	3.8
Addresses at AS distance 7	13040896	% Addresses at AS distance 7	0.3
Addresses at AS distance 8	8010240	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	548352	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	11520	% 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	256	% 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	1280	% Addresses at AS distance 14	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	235919718	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1521544552	% Addresses reachable within 3 AS hops	36
Addresses reachable within 4 AS hops	3479734664	% Addresses reachable within 4 AS hops	82
Addresses reachable within 5 AS hops	4032935048	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4195145096	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4208185992	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4216196232	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4216744584	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4216756104	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4216756616	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4216756872	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4216756872	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4216758152	% Addresses reachable within 14 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	371	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	9153	% ASes reachable at 3 AS hops	11
ASes reachable at 4 AS hops	32938	% ASes reachable at 4 AS hops	42
ASes reachable at 5 AS hops	27766	% ASes reachable at 5 AS hops	35
ASes reachable at 6 AS hops	6102	% ASes reachable at 6 AS hops	7
ASes reachable at 7 AS hops	1218	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	280	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	54	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	5	% ASes reachable at 10 AS hops	0
ASes reachable at 11 AS hops	4	% ASes reachable at 11 AS hops	0
ASes reachable at 12 AS hops	5	% 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

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	374	Cumulative % ASes by AS hops 2	0.5
ASes reachable by 3 AS hops	9527	Cumulative % ASes by AS hops 3	12.2
ASes reachable by 4 AS hops	42465	Cumulative % ASes by AS hops 4	54.5
ASes reachable by 5 AS hops	70231	Cumulative % ASes by AS hops 5	90.1
ASes reachable by 6 AS hops	76333	Cumulative % ASes by AS hops 6	98.0
ASes reachable by 7 AS hops	77551	Cumulative % ASes by AS hops 7	99.5
ASes reachable by 8 AS hops	77831	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	77885	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	77890	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	77894	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	77899	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	77903	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	77907	Cumulative % ASes by AS hops 14	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	2375	New Entries	270	Removed Entries	366	Updated Entries	1739
		Report		Report		Report
Address Span	1599745	Address Span	134912	Address Span	218113	Address Span	1246720
Average address span per update	673	Avg Span	499	Avg Span	595	Avg Span	716
Average prefix size updated	23.60	Average prefix size	23.54	Average prefix size	23.50	Average prefix size	23.63
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /16 total	2	Prefix /16 announcements	0	Prefix /16 withdrawals	0	Prefix /16 path updates	2
Prefix /17 total	2	Prefix /17 announcements	0	Prefix /17 withdrawals	0	Prefix /17 path updates	2
Prefix /18 total	7	Prefix /18 announcements	1	Prefix /18 withdrawals	0	Prefix /18 path updates	6
Prefix /19 total	21	Prefix /19 announcements	0	Prefix /19 withdrawals	4	Prefix /19 path updates	17
Prefix /20 total	47	Prefix /20 announcements	2	Prefix /20 withdrawals	11	Prefix /20 path updates	34
Prefix /21 total	111	Prefix /21 announcements	6	Prefix /21 withdrawals	12	Prefix /21 path updates	93
Prefix /22 total	162	Prefix /22 announcements	30	Prefix /22 withdrawals	23	Prefix /22 path updates	109
Prefix /23 total	169	Prefix /23 announcements	32	Prefix /23 withdrawals	45	Prefix /23 path updates	92
Prefix /24 total	1617	Prefix /24 announcements	199	Prefix /24 withdrawals	270	Prefix /24 path updates	1148
Prefix /25 total	236	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	236
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	1	Prefix /32 announcements	0	Prefix /32 withdrawals	1	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	0.00	Prefix /12 announcements	0.00	Prefix /12 withdrawals	0.00	Prefix /12 path updates	0.00
Prefix /13 total	0.00	Prefix /13 announcements	0.00	Prefix /13 withdrawals	0.00	Prefix /13 path updates	0.00
Prefix /14 total	0.00	Prefix /14 announcements	0.00	Prefix /14 withdrawals	0.00	Prefix /14 path updates	0.00
Prefix /15 total	0.00	Prefix /15 announcements	0.00	Prefix /15 withdrawals	0.00	Prefix /15 path updates	0.00
Prefix /16 total	0.06	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.09
Prefix /17 total	0.11	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.14
Prefix /18 total	0.22	Prefix /18 announcements	0.28	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.26
Prefix /19 total	0.36	Prefix /19 announcements	0.00	Prefix /19 withdrawals	0.45	Prefix /19 path updates	0.40
Prefix /20 total	0.44	Prefix /20 announcements	0.17	Prefix /20 withdrawals	0.67	Prefix /20 path updates	0.44
Prefix /21 total	0.91	Prefix /21 announcements	0.43	Prefix /21 withdrawals	0.64	Prefix /21 path updates	1.04
Prefix /22 total	0.62	Prefix /22 announcements	1.01	Prefix /22 withdrawals	0.57	Prefix /22 path updates	0.57
Prefix /23 total	0.67	Prefix /23 announcements	1.12	Prefix /23 withdrawals	1.17	Prefix /23 path updates	0.50
Prefix /24 total	1.09	Prefix /24 announcements	1.18	Prefix /24 withdrawals	1.18	Prefix /24 path updates	1.06
Prefix /25 total	149.34	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	203.96
Prefix /26 total	0.00	Prefix /26 announcements	0.00	Prefix /26 withdrawals	0.00	Prefix /26 path updates	0.00
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	0.00	Prefix /29 withdrawals	0.00	Prefix /29 path updates	0.00
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	55.05	Prefix /32 announcements	0.00	Prefix /32 withdrawals	357.26	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	2374.341	New Entries	269.925	Removed Entries	365.898	Updated Entries	1738.517
Address Span	1599300.750	Address Span	134874.531	Address Span	218052.438	Address Span	1246373.750
Average address span per update	672.813	Avg Span	498.861	Avg Span	594.835	Avg Span	715.801
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	0.000	Prefix /12 announcements	0.000	Prefix /12 withdrawals	0.000	Prefix /12 path updates	0.000
Prefix /13 update rate	0.000	Prefix /13 announcements	0.000	Prefix /13 withdrawals	0.000	Prefix /13 path updates	0.000
Prefix /14 update rate	0.000	Prefix /14 announcements	0.000	Prefix /14 withdrawals	0.000	Prefix /14 path updates	0.000
Prefix /15 update rate	0.000	Prefix /15 announcements	0.000	Prefix /15 withdrawals	0.000	Prefix /15 path updates	0.000
Prefix /16 update rate	1.999	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	1.999
Prefix /17 update rate	1.999	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	1.999
Prefix /18 update rate	6.998	Prefix /18 announcements	1.000	Prefix /18 withdrawals	0.000	Prefix /18 path updates	5.998
Prefix /19 update rate	20.994	Prefix /19 announcements	0.000	Prefix /19 withdrawals	3.999	Prefix /19 path updates	16.995
Prefix /20 update rate	46.987	Prefix /20 announcements	1.999	Prefix /20 withdrawals	10.997	Prefix /20 path updates	33.991
Prefix /21 update rate	110.969	Prefix /21 announcements	5.998	Prefix /21 withdrawals	11.997	Prefix /21 path updates	92.974
Prefix /22 update rate	161.955	Prefix /22 announcements	29.992	Prefix /22 withdrawals	22.994	Prefix /22 path updates	108.970
Prefix /23 update rate	168.953	Prefix /23 announcements	31.991	Prefix /23 withdrawals	44.988	Prefix /23 path updates	91.974
Prefix /24 update rate	1616.551	Prefix /24 announcements	198.945	Prefix /24 withdrawals	269.925	Prefix /24 path updates	1147.681
Prefix /25 update rate	235.934	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	235.934
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	1.000	Prefix /32 announcements	0.000	Prefix /32 withdrawals	1.000	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
Total Path Changes	622	Origin Paths	62	NextHop Paths	243	Transit Paths	166	Paths	131	Paths	20
Report
/16 Tot	2	/16 Org	1	/16 Nxt	0	/16 Trn	1	/16 Fst	0	/16 Prp	0
/17 Tot	2	/17 Org	0	/17 Nxt	1	/17 Trn	0	/17 Fst	0	/17 Prp	1
/18 Tot	6	/18 Org	0	/18 Nxt	3	/18 Trn	0	/18 Fst	0	/18 Prp	3
/19 Tot	17	/19 Org	0	/19 Nxt	8	/19 Trn	7	/19 Fst	2	/19 Prp	0
/20 Tot	34	/20 Org	0	/20 Nxt	7	/20 Trn	21	/20 Fst	6	/20 Prp	0
/21 Tot	93	/21 Org	0	/21 Nxt	22	/21 Trn	47	/21 Fst	21	/21 Prp	3
/22 Tot	109	/22 Org	1	/22 Nxt	48	/22 Trn	30	/22 Fst	12	/22 Prp	18
/23 Tot	92	/23 Org	0	/23 Nxt	53	/23 Trn	21	/23 Fst	14	/23 Prp	4
/24 Tot	1148	/24 Org	7	/24 Nxt	468	/24 Trn	502	/24 Fst	133	/24 Prp	38
/25 Tot	236	/25 Org	58	/25 Nxt	17	/25 Trn	0	/25 Fst	161	/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	0	/32 Org	0	/32 Nxt	0	/32 Trn	0	/32 Fst	0	/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	42	% AS's announcing span of /8	0.0005
AS's announcing span of /9	74	% AS's announcing span of /9	0.0010
AS's announcing span of /10	102	% AS's announcing span of /10	0.0013
AS's announcing span of /11	173	% AS's announcing span of /11	0.0022
AS's announcing span of /12	245	% 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	851	% AS's announcing span of /14	0.0110
AS's announcing span of /15	1630	% AS's announcing span of /15	0.0211
AS's announcing span of /16	1775	% AS's announcing span of /16	0.0230
AS's announcing span of /17	2440	% AS's announcing span of /17	0.0316
AS's announcing span of /18	3759	% AS's announcing span of /18	0.0487
AS's announcing span of /19	5135	% AS's announcing span of /19	0.0665
AS's announcing span of /20	7669	% AS's announcing span of /20	0.0993
AS's announcing span of /21	10440	% AS's announcing span of /21	0.1351
AS's announcing span of /22	12867	% AS's announcing span of /22	0.1666
AS's announcing span of /23	10124	% AS's announcing span of /23	0.1311
AS's announcing span of /24	19467	% AS's announcing span of /24	0.2520
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	129210
Average AS Connectivity Degree (258420/77907)	3.3170
Average AS Connectivity IN:OUT Degree	0.1573
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	601471	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	588527	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	397505	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	397527	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 Mon Dec 15 10:01:10 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