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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Tue Jan 6 05:01:09 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)	1049597	Change in FIB Size	0	Change (%)	0.000
All BGP entries (RIB)	3111076
RIB/FIB ratio (3111076/1049597)	2.9641
Valid entries	3111076
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)	3106453632
Total address space advertised (prefix length)	0.46737863
Percentage of IPv4 space advertised (3106453632/4294967295)	72.327760
Total address space advertised - corrected to 19 /8s	(data)
Average address span	2960
Average address span (as prefix size)	20.4691
Average prefix length	22.9414

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	543835	Specifics as % of FIB entries (543835/1049597)	51.8137
Specifics as % of address span (1113284230/3106453632)	35.8378
Specifics where AS prepended Path matches aggregate	226779	AS-P_Path-Match % (226779/543835)	41.70
AS Path matches aggregate	244163	AS-Path-Match % (244163/543835)	44.8965
AS Origin matches aggregate	418104	AS-Origin-Match % (418104/543835)	76.8807
Root Prefixes	505762
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	447381
Root Prefixes with depth 1	47171
Root Prefixes with depth 2	9150
Root Prefixes with depth 3	1572
Root Prefixes with depth 4	380
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	77935	ASes visible in only one AS path	45468
Origin only ASes	66536	Origin ASs announced via a single AS path	44949
Transit only ASes	591	Originating AS ATOM count	77344
Mixed ASes	10808	Originating AS ATOM compression	0.0737
Multi-Origin Prefixes	1790
ASes originating a single prefix	26978
Average FIB entries per Origin AS	13.5705	Maximum entries for an origin AS (AS7713)	3730
Average address range span for an origin AS	40164.1192	Maximum address range for an origin AS (AS749)	227734016

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	265414	Unique AS prepended Paths	282318
AS Paths used in FIB	136768	AS Paths using prepending	64295
AS paths associated with a single FIB entry	66168	AS Paths using private ASs	23
Average AS path length	5.1986	Number of Prefixes with Selected AS Prepending Paths	137391
Maximum AS Path length	15	Number of Prefixes with AS Prepending Paths	137391
Average address weighted AS path length	6.5339	Maximum prepended AS Path length	141
Average entries per AS Path	3.9546	Average entries per FIB AS Path	7.6743
AS Paths per origin AS	3.4316	FIB AS Paths per origin AS	1.7683
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	581	% Prefix /13	0.06
Prefix count /14	1204	% Prefix /14	0.11
Prefix count /15	2107	% Prefix /15	0.20
Prefix count /16	13769	% Prefix /16	1.31
Prefix count /17	8403	% Prefix /17	0.80
Prefix count /18	13813	% Prefix /18	1.32
Prefix count /19	25407	% Prefix /19	2.42
Prefix count /20	46843	% Prefix /20	4.46
Prefix count /21	53720	% Prefix /21	5.12
Prefix count /22	115253	% Prefix /22	10.98
Prefix count /23	110712	% Prefix /23	10.55
Prefix count /24	656614	% Prefix /24	62.56
Prefix count /25	697	% 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	6	% 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	484	% Prefix /13	0.10
Prefix count /14	1028	% Prefix /14	0.20
Prefix count /15	1630	% Prefix /15	0.32
Prefix count /16	10930	% Prefix /16	2.16
Prefix count /17	4463	% Prefix /17	0.88
Prefix count /18	6991	% Prefix /18	1.38
Prefix count /19	14890	% Prefix /19	2.94
Prefix count /20	20492	% Prefix /20	4.05
Prefix count /21	22854	% Prefix /21	4.52
Prefix count /22	60138	% Prefix /22	11.89
Prefix count /23	44990	% Prefix /23	8.90
Prefix count /24	316448	% Prefix /24	62.57
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	235639398	% Addresses at AS distance 2	5.6
Addresses at AS distance 3	1292728064	% Addresses at AS distance 3	30.6
Addresses at AS distance 4	1943422112	% Addresses at AS distance 4	46.1
Addresses at AS distance 5	563241600	% Addresses at AS distance 5	13.3
Addresses at AS distance 6	163259776	% Addresses at AS distance 6	3.9
Addresses at AS distance 7	13253632	% Addresses at AS distance 7	0.3
Addresses at AS distance 8	8018944	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	147968	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	19456	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	256	% 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	235644518	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1528372582	% Addresses reachable within 3 AS hops	36
Addresses reachable within 4 AS hops	3471794694	% Addresses reachable within 4 AS hops	82
Addresses reachable within 5 AS hops	4035036294	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4198296070	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4211549702	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4219568646	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4219716614	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4219736070	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4219736326	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4219736582	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4219736582	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4219737862	% 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	377	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	9145	% ASes reachable at 3 AS hops	11
ASes reachable at 4 AS hops	32932	% ASes reachable at 4 AS hops	42
ASes reachable at 5 AS hops	27795	% ASes reachable at 5 AS hops	35
ASes reachable at 6 AS hops	6117	% ASes reachable at 6 AS hops	7
ASes reachable at 7 AS hops	1191	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	312	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	43	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	3	% 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	380	Cumulative % ASes by AS hops 2	0.5
ASes reachable by 3 AS hops	9525	Cumulative % ASes by AS hops 3	12.2
ASes reachable by 4 AS hops	42457	Cumulative % ASes by AS hops 4	54.5
ASes reachable by 5 AS hops	70252	Cumulative % ASes by AS hops 5	90.1
ASes reachable by 6 AS hops	76369	Cumulative % ASes by AS hops 6	98.0
ASes reachable by 7 AS hops	77560	Cumulative % ASes by AS hops 7	99.5
ASes reachable by 8 AS hops	77872	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	77915	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	77918	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	77922	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	77927	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	77931	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	77935	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	3446	New Entries	155	Removed Entries	155	Updated Entries	3136
		Report		Report		Report
Address Span	4778368	Address Span	78336	Address Span	100608	Address Span	4599424
Average address span per update	1386	Avg Span	505	Avg Span	649	Avg Span	1466
Average prefix size updated	22.85	Average prefix size	23.50	Average prefix size	23.61	Average prefix size	22.78
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /16 total	3	Prefix /16 announcements	0	Prefix /16 withdrawals	0	Prefix /16 path updates	3
Prefix /17 total	4	Prefix /17 announcements	0	Prefix /17 withdrawals	1	Prefix /17 path updates	3
Prefix /18 total	0	Prefix /18 announcements	0	Prefix /18 withdrawals	0	Prefix /18 path updates	0
Prefix /19 total	255	Prefix /19 announcements	0	Prefix /19 withdrawals	0	Prefix /19 path updates	255
Prefix /20 total	97	Prefix /20 announcements	5	Prefix /20 withdrawals	3	Prefix /20 path updates	89
Prefix /21 total	479	Prefix /21 announcements	1	Prefix /21 withdrawals	3	Prefix /21 path updates	475
Prefix /22 total	308	Prefix /22 announcements	14	Prefix /22 withdrawals	13	Prefix /22 path updates	281
Prefix /23 total	427	Prefix /23 announcements	27	Prefix /23 withdrawals	6	Prefix /23 path updates	394
Prefix /24 total	1638	Prefix /24 announcements	108	Prefix /24 withdrawals	129	Prefix /24 path updates	1401
Prefix /25 total	235	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	235
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	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	0.07	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.07
Prefix /17 total	0.14	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.81	Prefix /17 path updates	0.12
Prefix /18 total	0.00	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.00
Prefix /19 total	3.06	Prefix /19 announcements	0.00	Prefix /19 withdrawals	0.00	Prefix /19 path updates	3.36
Prefix /20 total	0.63	Prefix /20 announcements	0.72	Prefix /20 withdrawals	0.43	Prefix /20 path updates	0.64
Prefix /21 total	2.72	Prefix /21 announcements	0.13	Prefix /21 withdrawals	0.38	Prefix /21 path updates	2.96
Prefix /22 total	0.81	Prefix /22 announcements	0.82	Prefix /22 withdrawals	0.76	Prefix /22 path updates	0.82
Prefix /23 total	1.17	Prefix /23 announcements	1.65	Prefix /23 withdrawals	0.37	Prefix /23 path updates	1.19
Prefix /24 total	0.76	Prefix /24 announcements	1.11	Prefix /24 withdrawals	1.33	Prefix /24 path updates	0.71
Prefix /25 total	102.69	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	112.84
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	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 0 hrs 59 mins)	Data	Announce Rate	Data	Withdraw Rate	Data	Path Chg Rate	Data
Table Updates	3446.958	New Entries	155.043	Removed Entries	155.043	Updated Entries	3136.871
Address Span	4779695.500	Address Span	78357.766	Address Span	100635.953	Address Span	4600702.000
Average address span per update	1386.385	Avg Span	505.140	Avg Span	649.180	Avg Span	1466.407
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	3.001	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	3.001
Prefix /17 update rate	4.001	Prefix /17 announcements	0.000	Prefix /17 withdrawals	1.000	Prefix /17 path updates	3.001
Prefix /18 update rate	0.000	Prefix /18 announcements	0.000	Prefix /18 withdrawals	0.000	Prefix /18 path updates	0.000
Prefix /19 update rate	255.071	Prefix /19 announcements	0.000	Prefix /19 withdrawals	0.000	Prefix /19 path updates	255.071
Prefix /20 update rate	97.027	Prefix /20 announcements	5.001	Prefix /20 withdrawals	3.001	Prefix /20 path updates	89.025
Prefix /21 update rate	479.133	Prefix /21 announcements	1.000	Prefix /21 withdrawals	3.001	Prefix /21 path updates	475.132
Prefix /22 update rate	308.086	Prefix /22 announcements	14.004	Prefix /22 withdrawals	13.004	Prefix /22 path updates	281.078
Prefix /23 update rate	427.119	Prefix /23 announcements	27.008	Prefix /23 withdrawals	6.002	Prefix /23 path updates	394.109
Prefix /24 update rate	1638.455	Prefix /24 announcements	108.030	Prefix /24 withdrawals	129.036	Prefix /24 path updates	1401.389
Prefix /25 update rate	235.065	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	235.065
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

440

140

146

Report

/16 Tot

/16 Org

/16 Nxt

/16 Trn

/16 Fst

/16 Prp

/17 Tot

/17 Org

/17 Nxt

/17 Trn

/17 Fst

/17 Prp

/18 Tot

/18 Org

/18 Nxt

/18 Trn

/18 Fst

/18 Prp

/19 Tot

255

/19 Org

/19 Nxt

250

/19 Trn

/19 Fst

/19 Prp

/20 Tot

/20 Org

/20 Nxt

/20 Trn

/20 Fst

/20 Prp

/21 Tot

475

/21 Org

/21 Nxt

466

/21 Trn

/21 Fst

/21 Prp

/22 Tot

281

/22 Org

/22 Nxt

254

/22 Trn

/22 Fst

/22 Prp

/23 Tot

394

/23 Org

/23 Nxt

365

/23 Trn

/23 Fst

/23 Prp

/24 Tot

1401

/24 Org

/24 Nxt

1128

/24 Trn

118

/24 Fst

140

/24 Prp

/25 Tot

235

/25 Org

/25 Nxt

/25 Trn

/25 Fst

159

/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	42	% AS's announcing span of /8	0.0005
AS's announcing span of /9	73	% AS's announcing span of /9	0.0009
AS's announcing span of /10	104	% AS's announcing span of /10	0.0013
AS's announcing span of /11	172	% AS's announcing span of /11	0.0022
AS's announcing span of /12	242	% AS's announcing span of /12	0.0031
AS's announcing span of /13	404	% AS's announcing span of /13	0.0052
AS's announcing span of /14	844	% AS's announcing span of /14	0.0109
AS's announcing span of /15	1631	% AS's announcing span of /15	0.0211
AS's announcing span of /16	1767	% AS's announcing span of /16	0.0229
AS's announcing span of /17	2448	% AS's announcing span of /17	0.0317
AS's announcing span of /18	3763	% AS's announcing span of /18	0.0487
AS's announcing span of /19	5161	% AS's announcing span of /19	0.0668
AS's announcing span of /20	7655	% AS's announcing span of /20	0.0990
AS's announcing span of /21	10446	% AS's announcing span of /21	0.1352
AS's announcing span of /22	12874	% AS's announcing span of /22	0.1666
AS's announcing span of /23	10152	% AS's announcing span of /23	0.1314
AS's announcing span of /24	19457	% AS's announcing span of /24	0.2517
AS's announcing span of /25	15	% 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.

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AS Connectivity Report	Data
AS Adjacency Count	129463
Average AS Connectivity Degree (258926/77935)	3.3223
Average AS Connectivity IN:OUT Degree	0.1566
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	601062	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	588442	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	397958	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	397979	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 Tue Jan 6 05:01:09 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