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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Thu Mar 13 06:01:09 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)	1002889	Change in FIB Size	87	Change (%)	0.009
All BGP entries (RIB)	2971014
RIB/FIB ratio (2971014/1002889)	2.9625
Valid entries	2971014
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)	3112296832
Total address space advertised (prefix length)	0.46466748
Percentage of IPv4 space advertised (3112296832/4294967295)	72.463807
Total address space advertised - corrected to 19 /8s	(data)
Average address span	3103
Average address span (as prefix size)	20.4006
Average prefix length	22.9025

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	526164	Specifics as % of FIB entries (526164/1002889)	52.4648
Specifics as % of address span (1148371026/3112296832)	36.8979
Specifics where AS prepended Path matches aggregate	223090	AS-P_Path-Match % (223090/526164)	42.40
AS Path matches aggregate	242333	AS-Path-Match % (242333/526164)	46.0566
AS Origin matches aggregate	404199	AS-Origin-Match % (404199/526164)	76.8200
Root Prefixes	476725
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	419444
Root Prefixes with depth 1	46105
Root Prefixes with depth 2	9070
Root Prefixes with depth 3	1603
Root Prefixes with depth 4	388
Root Prefixes with depth 5	82
Root Prefixes with depth 6	27
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	76901	ASes visible in only one AS path	45891
Origin only ASes	65526	Origin ASs announced via a single AS path	45373
Transit only ASes	562	Originating AS ATOM count	76339
Mixed ASes	10813	Originating AS ATOM compression	0.0761
Multi-Origin Prefixes	1812
ASes originating a single prefix	26733
Average FIB entries per Origin AS	13.1373	Maximum entries for an origin AS (AS7713)	3692
Average address range span for an origin AS	40769.4210	Maximum address range for an origin AS (AS749)	228351488

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	249779	Unique AS prepended Paths	269391
AS Paths used in FIB	128782	AS Paths using prepending	70979
AS paths associated with a single FIB entry	61172	AS Paths using private ASs	56
Average AS path length	5.2728	Number of Prefixes with Selected AS Prepending Paths	153748
Maximum AS Path length	14	Number of Prefixes with AS Prepending Paths	153748
Average address weighted AS path length	6.6783	Maximum prepended AS Path length	140
Average entries per AS Path	4.0151	Average entries per FIB AS Path	7.7875
AS Paths per origin AS	3.2720	FIB AS Paths per origin AS	1.6870
AS PATH ATOM compression	0.1284

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	16	% Prefix /9	0.00
Prefix count /10	42	% Prefix /10	0.00
Prefix count /11	92	% Prefix /11	0.01
Prefix count /12	304	% Prefix /12	0.03
Prefix count /13	586	% Prefix /13	0.06
Prefix count /14	1225	% Prefix /14	0.12
Prefix count /15	2176	% Prefix /15	0.22
Prefix count /16	14034	% Prefix /16	1.40
Prefix count /17	8435	% Prefix /17	0.84
Prefix count /18	14021	% Prefix /18	1.40
Prefix count /19	25093	% Prefix /19	2.50
Prefix count /20	45660	% Prefix /20	4.55
Prefix count /21	53249	% Prefix /21	5.31
Prefix count /22	113931	% Prefix /22	11.36
Prefix count /23	106135	% Prefix /23	10.58
Prefix count /24	617155	% Prefix /24	61.54
Prefix count /25	697	% Prefix /25	0.07
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	2	% Prefix /29	0.00
Prefix count /30	0	% Prefix /30	0.00
Prefix count /31	0	% Prefix /31	0.00
Prefix count /32	18	% 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	42	% Prefix /10	0.01
Prefix count /11	85	% Prefix /11	0.02
Prefix count /12	267	% Prefix /12	0.06
Prefix count /13	488	% Prefix /13	0.10
Prefix count /14	1040	% Prefix /14	0.22
Prefix count /15	1666	% Prefix /15	0.35
Prefix count /16	11066	% Prefix /16	2.32
Prefix count /17	4464	% Prefix /17	0.94
Prefix count /18	6939	% Prefix /18	1.46
Prefix count /19	14802	% Prefix /19	3.10
Prefix count /20	18889	% Prefix /20	3.96
Prefix count /21	22430	% Prefix /21	4.71
Prefix count /22	59265	% Prefix /22	12.43
Prefix count /23	42442	% Prefix /23	8.90
Prefix count /24	292804	% Prefix /24	61.42
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	70400	% Addresses at AS distance 1	0.0
Addresses at AS distance 2	252850339	% Addresses at AS distance 2	5.9
Addresses at AS distance 3	1150423695	% Addresses at AS distance 3	27.0
Addresses at AS distance 4	1982236704	% Addresses at AS distance 4	46.5
Addresses at AS distance 5	658631424	% Addresses at AS distance 5	15.5
Addresses at AS distance 6	181217024	% Addresses at AS distance 6	4.3
Addresses at AS distance 7	24754816	% Addresses at AS distance 7	0.6
Addresses at AS distance 8	9888768	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	458752	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	126720	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	7424	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	1280	% Addresses at AS distance 12	0.0
Addresses at AS distance 13	256	% Addresses at AS distance 13	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	70656	% Addresses reachable within 1 AS hops	0
Addresses reachable within 2 AS hops	252920995	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1403344690	% Addresses reachable within 3 AS hops	32
Addresses reachable within 4 AS hops	3385581394	% Addresses reachable within 4 AS hops	79
Addresses reachable within 5 AS hops	4044212818	% Addresses reachable within 5 AS hops	94
Addresses reachable within 6 AS hops	4225429842	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4250184658	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4260073426	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4260532178	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4260658898	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4260666322	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4260667602	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4260667858	% Addresses reachable within 13 AS hops	100

ASes by AS distance	(data)	% ASes by AS hops	(data)
ASes reachable at 0 AS hops	1	% ASes reachable at 0 AS hops	0
ASes reachable at 1 AS hops	2	% ASes reachable at 1 AS hops	0
ASes reachable at 2 AS hops	363	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	9460	% ASes reachable at 3 AS hops	12
ASes reachable at 4 AS hops	28765	% ASes reachable at 4 AS hops	37
ASes reachable at 5 AS hops	28716	% ASes reachable at 5 AS hops	37
ASes reachable at 6 AS hops	7501	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1630	% ASes reachable at 7 AS hops	2
ASes reachable at 8 AS hops	376	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	62	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	22	% ASes reachable at 10 AS hops	0
ASes reachable at 11 AS hops	2	% ASes reachable at 11 AS hops	0
ASes reachable at 12 AS hops	0	% ASes reachable at 12 AS hops	0
ASes reachable at 13 AS hops	1	% ASes reachable at 13 AS hops	0

Cumulative ASes by AS hops	(data)	Cumulative % ASes by AS hops	(data)
ASes reachable by 0 AS hops	1	Cumulative % ASes by AS hops 0	0.0
ASes reachable by 1 AS hops	3	Cumulative % ASes by AS hops 1	0.0
ASes reachable by 2 AS hops	366	Cumulative % ASes by AS hops 2	0.5
ASes reachable by 3 AS hops	9826	Cumulative % ASes by AS hops 3	12.8
ASes reachable by 4 AS hops	38591	Cumulative % ASes by AS hops 4	50.2
ASes reachable by 5 AS hops	67307	Cumulative % ASes by AS hops 5	87.5
ASes reachable by 6 AS hops	74808	Cumulative % ASes by AS hops 6	97.3
ASes reachable by 7 AS hops	76438	Cumulative % ASes by AS hops 7	99.4
ASes reachable by 8 AS hops	76814	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	76876	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	76898	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	76900	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	76900	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	76901	Cumulative % ASes by AS hops 13	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	3619	New Entries	383	Removed Entries	290	Updated Entries	2946
		Report		Report		Report
Address Span	36462848	Address Span	159744	Address Span	33681152	Address Span	2621952
Average address span per update	10075	Avg Span	417	Avg Span	116141	Avg Span	890
Average prefix size updated	23.44	Average prefix size	23.63	Average prefix size	23.56	Average prefix size	23.41
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /8 total	2	Prefix /8 announcements	0	Prefix /8 withdrawals	2	Prefix /8 path updates	0
Prefix /9 total	0	Prefix /9 announcements	0	Prefix /9 withdrawals	0	Prefix /9 path updates	0
Prefix /10 total	0	Prefix /10 announcements	0	Prefix /10 withdrawals	0	Prefix /10 path updates	0
Prefix /11 total	0	Prefix /11 announcements	0	Prefix /11 withdrawals	0	Prefix /11 path updates	0
Prefix /12 total	0	Prefix /12 announcements	0	Prefix /12 withdrawals	0	Prefix /12 path updates	0
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	6	Prefix /16 announcements	0	Prefix /16 withdrawals	0	Prefix /16 path updates	6
Prefix /17 total	7	Prefix /17 announcements	0	Prefix /17 withdrawals	0	Prefix /17 path updates	7
Prefix /18 total	6	Prefix /18 announcements	0	Prefix /18 withdrawals	0	Prefix /18 path updates	6
Prefix /19 total	32	Prefix /19 announcements	0	Prefix /19 withdrawals	1	Prefix /19 path updates	31
Prefix /20 total	129	Prefix /20 announcements	3	Prefix /20 withdrawals	5	Prefix /20 path updates	121
Prefix /21 total	93	Prefix /21 announcements	8	Prefix /21 withdrawals	4	Prefix /21 path updates	81
Prefix /22 total	352	Prefix /22 announcements	33	Prefix /22 withdrawals	15	Prefix /22 path updates	304
Prefix /23 total	429	Prefix /23 announcements	41	Prefix /23 withdrawals	28	Prefix /23 path updates	360
Prefix /24 total	2331	Prefix /24 announcements	298	Prefix /24 withdrawals	235	Prefix /24 path updates	1798
Prefix /25 total	232	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	232
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	34.64	Prefix /8 announcements	0.00	Prefix /8 withdrawals	432.28	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	0.12	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.15
Prefix /17 total	0.23	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.28
Prefix /18 total	0.12	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.15
Prefix /19 total	0.35	Prefix /19 announcements	0.00	Prefix /19 withdrawals	0.14	Prefix /19 path updates	0.42
Prefix /20 total	0.78	Prefix /20 announcements	0.17	Prefix /20 withdrawals	0.38	Prefix /20 path updates	0.90
Prefix /21 total	0.48	Prefix /21 announcements	0.39	Prefix /21 withdrawals	0.26	Prefix /21 path updates	0.52
Prefix /22 total	0.86	Prefix /22 announcements	0.76	Prefix /22 withdrawals	0.46	Prefix /22 path updates	0.91
Prefix /23 total	1.12	Prefix /23 announcements	1.01	Prefix /23 withdrawals	0.91	Prefix /23 path updates	1.15
Prefix /24 total	1.05	Prefix /24 announcements	1.26	Prefix /24 withdrawals	1.32	Prefix /24 path updates	0.99
Prefix /25 total	92.24	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	113.31
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	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 1 hrs 0 mins)	Data	Announce Rate	Data	Withdraw Rate	Data	Path Chg Rate	Data
Table Updates	3619.000	New Entries	383.000	Removed Entries	290.000	Updated Entries	2946.000
Address Span	36462848.000	Address Span	159744.000	Address Span	33681152.000	Address Span	2621952.000
Average address span per update	10075.000	Avg Span	417.000	Avg Span	116141.000	Avg Span	890.000
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /1 update rate	0.000	Prefix /1 announcements	0.000	Prefix /1 withdrawals	0.000	Prefix /1 path updates	0.000
Prefix /2 update rate	0.000	Prefix /2 announcements	0.000	Prefix /2 withdrawals	0.000	Prefix /2 path updates	0.000
Prefix /3 update rate	0.000	Prefix /3 announcements	0.000	Prefix /3 withdrawals	0.000	Prefix /3 path updates	0.000
Prefix /4 update rate	0.000	Prefix /4 announcements	0.000	Prefix /4 withdrawals	0.000	Prefix /4 path updates	0.000
Prefix /5 update rate	0.000	Prefix /5 announcements	0.000	Prefix /5 withdrawals	0.000	Prefix /5 path updates	0.000
Prefix /6 update rate	0.000	Prefix /6 announcements	0.000	Prefix /6 withdrawals	0.000	Prefix /6 path updates	0.000
Prefix /7 update rate	0.000	Prefix /7 announcements	0.000	Prefix /7 withdrawals	0.000	Prefix /7 path updates	0.000
Prefix /8 update rate	2.000	Prefix /8 announcements	0.000	Prefix /8 withdrawals	2.000	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	6.000	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	6.000
Prefix /17 update rate	7.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	7.000
Prefix /18 update rate	6.000	Prefix /18 announcements	0.000	Prefix /18 withdrawals	0.000	Prefix /18 path updates	6.000
Prefix /19 update rate	32.000	Prefix /19 announcements	0.000	Prefix /19 withdrawals	1.000	Prefix /19 path updates	31.000
Prefix /20 update rate	129.000	Prefix /20 announcements	3.000	Prefix /20 withdrawals	5.000	Prefix /20 path updates	121.000
Prefix /21 update rate	93.000	Prefix /21 announcements	8.000	Prefix /21 withdrawals	4.000	Prefix /21 path updates	81.000
Prefix /22 update rate	352.000	Prefix /22 announcements	33.000	Prefix /22 withdrawals	15.000	Prefix /22 path updates	304.000
Prefix /23 update rate	429.000	Prefix /23 announcements	41.000	Prefix /23 withdrawals	28.000	Prefix /23 path updates	360.000
Prefix /24 update rate	2331.000	Prefix /24 announcements	298.000	Prefix /24 withdrawals	235.000	Prefix /24 path updates	1798.000
Prefix /25 update rate	232.000	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	232.000
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

816

247

301

174

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

/19 Org

/19 Nxt

/19 Trn

/19 Fst

/19 Prp

/20 Tot

121

/20 Org

/20 Nxt

/20 Trn

/20 Fst

/20 Prp

/21 Tot

/21 Org

/21 Nxt

/21 Trn

/21 Fst

/21 Prp

/22 Tot

304

/22 Org

/22 Nxt

/22 Trn

106

/22 Fst

121

/22 Prp

/23 Tot

360

/23 Org

/23 Nxt

123

/23 Trn

100

/23 Fst

129

/23 Prp

/24 Tot

1798

/24 Org

/24 Nxt

562

/24 Trn

466

/24 Fst

712

/24 Prp

/25 Tot

232

/25 Org

/25 Nxt

/25 Trn

/25 Fst

155

/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	10	% AS's announcing span of /6	0.0001
AS's announcing span of /7	23	% AS's announcing span of /7	0.0003
AS's announcing span of /8	45	% AS's announcing span of /8	0.0006
AS's announcing span of /9	71	% AS's announcing span of /9	0.0009
AS's announcing span of /10	104	% AS's announcing span of /10	0.0014
AS's announcing span of /11	168	% 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	401	% AS's announcing span of /13	0.0053
AS's announcing span of /14	849	% AS's announcing span of /14	0.0111
AS's announcing span of /15	1663	% AS's announcing span of /15	0.0218
AS's announcing span of /16	1763	% AS's announcing span of /16	0.0231
AS's announcing span of /17	2456	% AS's announcing span of /17	0.0322
AS's announcing span of /18	3746	% AS's announcing span of /18	0.0491
AS's announcing span of /19	5126	% AS's announcing span of /19	0.0672
AS's announcing span of /20	7546	% AS's announcing span of /20	0.0989
AS's announcing span of /21	10423	% AS's announcing span of /21	0.1367
AS's announcing span of /22	12843	% AS's announcing span of /22	0.1684
AS's announcing span of /23	9821	% AS's announcing span of /23	0.1288
AS's announcing span of /24	18948	% AS's announcing span of /24	0.2484
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.

`Ñ0x× `Ñ0x× `Ñ0x×

AS Connectivity Report	Data
AS Adjacency Count	128401
Average AS Connectivity Degree (256802/76901)	3.3394
Average AS Connectivity IN:OUT Degree	0.1551
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	566540	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	550650	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	378039	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	378067	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 Thu Mar 13 06:01:09 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