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 Sat Apr 11 16:01:10 2026 (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)	1047147	Change in FIB Size	78	Change (%)	0.007
All BGP entries (RIB)	3122816
RIB/FIB ratio (3122816/1047147)	2.9822
Valid entries	3122816
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)	3109043072
Total address space advertised (prefix length)	0.46617654
Percentage of IPv4 space advertised (3109043072/4294967295)	72.388050
Total address space advertised - corrected to 19 /8s	(data)
Average address span	2969
Average address span (as prefix size)	20.4642
Average prefix length	22.9452

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	533794	Specifics as % of FIB entries (533794/1047147)	50.9760
Specifics as % of address span (1095538442/3109043072)	35.2372
Specifics where AS prepended Path matches aggregate	231516	AS-P_Path-Match % (231516/533794)	43.37
AS Path matches aggregate	250013	AS-Path-Match % (250013/533794)	46.8370
AS Origin matches aggregate	406762	AS-Origin-Match % (406762/533794)	76.2021
Root Prefixes	513353
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	456716
Root Prefixes with depth 1	46302
Root Prefixes with depth 2	8494
Root Prefixes with depth 3	1418
Root Prefixes with depth 4	321
Root Prefixes with depth 5	71
Root Prefixes with depth 6	25
Root Prefixes with depth 7	5
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	78459	ASes visible in only one AS path	46936
Origin only ASes	67036	Origin ASs announced via a single AS path	46378
Transit only ASes	601	Originating AS ATOM count	77858
Mixed ASes	10822	Originating AS ATOM compression	0.0744
Multi-Origin Prefixes	1562
ASes originating a single prefix	27613
Average FIB entries per Origin AS	13.4494	Maximum entries for an origin AS (AS7713)	3669
Average address range span for an origin AS	39932.2237	Maximum address range for an origin AS (AS749)	227731200

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	277757	Unique AS prepended Paths	295790
AS Paths used in FIB	132856	AS Paths using prepending	67313
AS paths associated with a single FIB entry	64176	AS Paths using private ASs	18
Average AS path length	5.2974	Number of Prefixes with Selected AS Prepending Paths	141617
Maximum AS Path length	16	Number of Prefixes with AS Prepending Paths	141617
Average address weighted AS path length	6.5408	Maximum prepended AS Path length	70
Average entries per AS Path	3.7700	Average entries per FIB AS Path	7.8818
AS Paths per origin AS	3.5675	FIB AS Paths per origin AS	1.7064
AS PATH ATOM compression	0.1269

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	40	% Prefix /10	0.00
Prefix count /11	95	% Prefix /11	0.01
Prefix count /12	297	% Prefix /12	0.03
Prefix count /13	584	% Prefix /13	0.06
Prefix count /14	1192	% Prefix /14	0.11
Prefix count /15	2111	% Prefix /15	0.20
Prefix count /16	13655	% Prefix /16	1.30
Prefix count /17	8408	% Prefix /17	0.80
Prefix count /18	13467	% Prefix /18	1.29
Prefix count /19	25802	% Prefix /19	2.46
Prefix count /20	47083	% Prefix /20	4.50
Prefix count /21	53040	% Prefix /21	5.07
Prefix count /22	114368	% Prefix /22	10.92
Prefix count /23	108036	% Prefix /23	10.32
Prefix count /24	658244	% Prefix /24	62.86
Prefix count /25	685	% Prefix /25	0.07
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	10	% 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	40	% Prefix /10	0.01
Prefix count /11	90	% Prefix /11	0.02
Prefix count /12	263	% Prefix /12	0.05
Prefix count /13	488	% Prefix /13	0.10
Prefix count /14	1015	% Prefix /14	0.20
Prefix count /15	1622	% Prefix /15	0.32
Prefix count /16	10838	% Prefix /16	2.11
Prefix count /17	4515	% Prefix /17	0.88
Prefix count /18	7146	% Prefix /18	1.39
Prefix count /19	14932	% Prefix /19	2.91
Prefix count /20	20949	% Prefix /20	4.08
Prefix count /21	22900	% Prefix /21	4.46
Prefix count /22	60623	% Prefix /22	11.81
Prefix count /23	45680	% Prefix /23	8.90
Prefix count /24	322220	% Prefix /24	62.77
Prefix count /25	7	% 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	219993098	% Addresses at AS distance 2	5.2
Addresses at AS distance 3	1234166528	% Addresses at AS distance 3	29.4
Addresses at AS distance 4	1981506432	% Addresses at AS distance 4	47.1
Addresses at AS distance 5	581598976	% Addresses at AS distance 5	13.8
Addresses at AS distance 6	165360256	% Addresses at AS distance 6	3.9
Addresses at AS distance 7	13710720	% Addresses at AS distance 7	0.3
Addresses at AS distance 8	7842816	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	369408	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	25600	% 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	0	% 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
Addresses at AS distance 15	0	% 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	219998218	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1454164746	% Addresses reachable within 3 AS hops	34
Addresses reachable within 4 AS hops	3435671178	% Addresses reachable within 4 AS hops	81
Addresses reachable within 5 AS hops	4017270154	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4182630410	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4196341130	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4204183946	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4204553354	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4204578954	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4204580234	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4204580234	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4204580234	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4204581514	% Addresses reachable within 14 AS hops	100
Addresses reachable within 15 AS hops	4204581514	% 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	302	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	6582	% ASes reachable at 3 AS hops	8
ASes reachable at 4 AS hops	31247	% ASes reachable at 4 AS hops	39
ASes reachable at 5 AS hops	31185	% ASes reachable at 5 AS hops	39
ASes reachable at 6 AS hops	7391	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1382	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	286	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	52	% 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	6	% 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	0	% 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	305	Cumulative % ASes by AS hops 2	0.4
ASes reachable by 3 AS hops	6887	Cumulative % ASes by AS hops 3	8.8
ASes reachable by 4 AS hops	38134	Cumulative % ASes by AS hops 4	48.6
ASes reachable by 5 AS hops	69319	Cumulative % ASes by AS hops 5	88.4
ASes reachable by 6 AS hops	76710	Cumulative % ASes by AS hops 6	97.8
ASes reachable by 7 AS hops	78092	Cumulative % ASes by AS hops 7	99.5
ASes reachable by 8 AS hops	78378	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	78430	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	78441	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	78447	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	78451	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	78455	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	78459	Cumulative % ASes by AS hops 14	100.0
ASes reachable by 15 AS hops	78459	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	1742	New Entries	188	Removed Entries	104	Updated Entries	1450
		Report		Report		Report
Address Span	2298880	Address Span	137728	Address Span	47360	Address Span	2113792
Average address span per update	1319	Avg Span	732	Avg Span	455	Avg Span	1457
Average prefix size updated	23.55	Average prefix size	23.69	Average prefix size	23.60	Average prefix size	23.52
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	0	Prefix /13 announcements	0	Prefix /13 withdrawals	0	Prefix /13 path updates	0
Prefix /14 total	0	Prefix /14 announcements	0	Prefix /14 withdrawals	0	Prefix /14 path updates	0
Prefix /15 total	0	Prefix /15 announcements	0	Prefix /15 withdrawals	0	Prefix /15 path updates	0
Prefix /16 total	3	Prefix /16 announcements	1	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	3	Prefix /18 announcements	0	Prefix /18 withdrawals	0	Prefix /18 path updates	3
Prefix /19 total	6	Prefix /19 announcements	0	Prefix /19 withdrawals	0	Prefix /19 path updates	6
Prefix /20 total	40	Prefix /20 announcements	2	Prefix /20 withdrawals	2	Prefix /20 path updates	36
Prefix /21 total	85	Prefix /21 announcements	3	Prefix /21 withdrawals	3	Prefix /21 path updates	79
Prefix /22 total	162	Prefix /22 announcements	11	Prefix /22 withdrawals	5	Prefix /22 path updates	146
Prefix /23 total	182	Prefix /23 announcements	11	Prefix /23 withdrawals	15	Prefix /23 path updates	156
Prefix /24 total	1030	Prefix /24 announcements	160	Prefix /24 withdrawals	79	Prefix /24 path updates	791
Prefix /25 total	228	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	228
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	0	Prefix /32 announcements	0	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	2.02	Prefix /12 announcements	0.00	Prefix /12 withdrawals	0.00	Prefix /12 path updates	2.43
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	0.13	Prefix /16 announcements	0.41	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.11
Prefix /17 total	0.14	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.17
Prefix /18 total	0.13	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.16
Prefix /19 total	0.14	Prefix /19 announcements	0.00	Prefix /19 withdrawals	0.00	Prefix /19 path updates	0.17
Prefix /20 total	0.51	Prefix /20 announcements	0.24	Prefix /20 withdrawals	0.43	Prefix /20 path updates	0.55
Prefix /21 total	0.96	Prefix /21 announcements	0.32	Prefix /21 withdrawals	0.57	Prefix /21 path updates	1.08
Prefix /22 total	0.85	Prefix /22 announcements	0.54	Prefix /22 withdrawals	0.44	Prefix /22 path updates	0.92
Prefix /23 total	1.01	Prefix /23 announcements	0.57	Prefix /23 withdrawals	1.40	Prefix /23 path updates	1.04
Prefix /24 total	0.94	Prefix /24 announcements	1.35	Prefix /24 withdrawals	1.21	Prefix /24 path updates	0.87
Prefix /25 total	200.08	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	240.37
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	100.00	Prefix /27 withdrawals	100.00	Prefix /27 path updates	100.00
Prefix /28 total	0.00	Prefix /28 announcements	100.00	Prefix /28 withdrawals	100.00	Prefix /28 path updates	100.00
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	0.00	Prefix /32 announcements	0.00	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	1742.000	New Entries	188.000	Removed Entries	104.000	Updated Entries	1450.000
Address Span	2298880.000	Address Span	137728.000	Address Span	47360.000	Address Span	2113792.000
Average address span per update	1319.000	Avg Span	732.000	Avg Span	455.000	Avg Span	1457.000
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	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	3.000	Prefix /16 announcements	1.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	2.000
Prefix /17 update rate	2.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	2.000
Prefix /18 update rate	3.000	Prefix /18 announcements	0.000	Prefix /18 withdrawals	0.000	Prefix /18 path updates	3.000
Prefix /19 update rate	6.000	Prefix /19 announcements	0.000	Prefix /19 withdrawals	0.000	Prefix /19 path updates	6.000
Prefix /20 update rate	40.000	Prefix /20 announcements	2.000	Prefix /20 withdrawals	2.000	Prefix /20 path updates	36.000
Prefix /21 update rate	85.000	Prefix /21 announcements	3.000	Prefix /21 withdrawals	3.000	Prefix /21 path updates	79.000
Prefix /22 update rate	162.000	Prefix /22 announcements	11.000	Prefix /22 withdrawals	5.000	Prefix /22 path updates	146.000
Prefix /23 update rate	182.000	Prefix /23 announcements	11.000	Prefix /23 withdrawals	15.000	Prefix /23 path updates	156.000
Prefix /24 update rate	1030.000	Prefix /24 announcements	160.000	Prefix /24 withdrawals	79.000	Prefix /24 path updates	791.000
Prefix /25 update rate	228.000	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	228.000
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	0.000	Prefix /32 announcements	0.000	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
Total Path Changes	610	Origin Paths	61	NextHop Paths	185	Transit Paths	141	Paths	202	Paths	21
Report
/12 Tot	1	/12 Org	0	/12 Nxt	0	/12 Trn	1	/12 Fst	0	/12 Prp	0
/13 Tot	0	/13 Org	0	/13 Nxt	0	/13 Trn	0	/13 Fst	0	/13 Prp	0
/14 Tot	0	/14 Org	0	/14 Nxt	0	/14 Trn	0	/14 Fst	0	/14 Prp	0
/15 Tot	0	/15 Org	0	/15 Nxt	0	/15 Trn	0	/15 Fst	0	/15 Prp	0
/16 Tot	2	/16 Org	0	/16 Nxt	0	/16 Trn	2	/16 Fst	0	/16 Prp	0
/17 Tot	2	/17 Org	0	/17 Nxt	0	/17 Trn	2	/17 Fst	0	/17 Prp	0
/18 Tot	3	/18 Org	0	/18 Nxt	0	/18 Trn	3	/18 Fst	0	/18 Prp	0
/19 Tot	6	/19 Org	0	/19 Nxt	3	/19 Trn	0	/19 Fst	3	/19 Prp	0
/20 Tot	36	/20 Org	0	/20 Nxt	18	/20 Trn	17	/20 Fst	0	/20 Prp	1
/21 Tot	79	/21 Org	1	/21 Nxt	16	/21 Trn	44	/21 Fst	14	/21 Prp	4
/22 Tot	146	/22 Org	2	/22 Nxt	72	/22 Trn	58	/22 Fst	9	/22 Prp	5
/23 Tot	156	/23 Org	0	/23 Nxt	65	/23 Trn	59	/23 Fst	27	/23 Prp	5
/24 Tot	791	/24 Org	6	/24 Nxt	261	/24 Trn	293	/24 Fst	194	/24 Prp	37
/25 Tot	228	/25 Org	58	/25 Nxt	9	/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	40	% 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	103	% 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	239	% AS's announcing span of /12	0.0031
AS's announcing span of /13	393	% AS's announcing span of /13	0.0051
AS's announcing span of /14	851	% AS's announcing span of /14	0.0109
AS's announcing span of /15	1621	% AS's announcing span of /15	0.0208
AS's announcing span of /16	1729	% AS's announcing span of /16	0.0222
AS's announcing span of /17	2443	% AS's announcing span of /17	0.0314
AS's announcing span of /18	3733	% AS's announcing span of /18	0.0480
AS's announcing span of /19	5135	% AS's announcing span of /19	0.0660
AS's announcing span of /20	7519	% AS's announcing span of /20	0.0966
AS's announcing span of /21	10407	% AS's announcing span of /21	0.1338
AS's announcing span of /22	13165	% AS's announcing span of /22	0.1692
AS's announcing span of /23	10357	% AS's announcing span of /23	0.1331
AS's announcing span of /24	19771	% AS's announcing span of /24	0.2541
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.

`AN™Ŕ `AN™Ŕ `AN™Ŕ

AS Connectivity Report	Data
AS Adjacency Count	128482
Average AS Connectivity Degree (256964/78459)	3.2751
Average AS Connectivity IN:OUT Degree	0.1526
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	596294	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	582463	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	402700	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	402725	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 Sat Apr 11 16:01:10 2026 (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