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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Wed Apr 2 05:01:09 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)	1003527	Change in FIB Size	-75	Change (%)	-0.007
All BGP entries (RIB)	2972947
RIB/FIB ratio (2972947/1003527)	2.9625
Valid entries	2972947
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)	3108986112
Total address space advertised (prefix length)	0.46620297
Percentage of IPv4 space advertised (3108986112/4294967295)	72.386724
Total address space advertised - corrected to 19 /8s	(data)
Average address span	3098
Average address span (as prefix size)	20.4029
Average prefix length	22.9030

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	527260	Specifics as % of FIB entries (527260/1003527)	52.5407
Specifics as % of address span (1144414416/3108986112)	36.8099
Specifics where AS prepended Path matches aggregate	229707	AS-P_Path-Match % (229707/527260)	43.57
AS Path matches aggregate	250484	AS-Path-Match % (250484/527260)	47.5067
AS Origin matches aggregate	405185	AS-Origin-Match % (405185/527260)	76.8473
Root Prefixes	476267
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	418883
Root Prefixes with depth 1	46254
Root Prefixes with depth 2	9018
Root Prefixes with depth 3	1604
Root Prefixes with depth 4	391
Root Prefixes with depth 5	83
Root Prefixes with depth 6	28
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	76962	ASes visible in only one AS path	46730
Origin only ASes	65567	Origin ASs announced via a single AS path	46177
Transit only ASes	565	Originating AS ATOM count	76397
Mixed ASes	10830	Originating AS ATOM compression	0.0761
Multi-Origin Prefixes	1755
ASes originating a single prefix	26743
Average FIB entries per Origin AS	13.1357	Maximum entries for an origin AS (AS7713)	3676
Average address range span for an origin AS	40695.1335	Maximum address range for an origin AS (AS749)	228349696

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	249659	Unique AS prepended Paths	269152
AS Paths used in FIB	125405	AS Paths using prepending	70316
AS paths associated with a single FIB entry	58952	AS Paths using private ASs	54
Average AS path length	5.2626	Number of Prefixes with Selected AS Prepending Paths	151882
Maximum AS Path length	13	Number of Prefixes with AS Prepending Paths	151882
Average address weighted AS path length	6.6591	Maximum prepended AS Path length	91
Average entries per AS Path	4.0196	Average entries per FIB AS Path	8.0023
AS Paths per origin AS	3.2679	FIB AS Paths per origin AS	1.6415
AS PATH ATOM compression	0.1250

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	41	% Prefix /10	0.00
Prefix count /11	93	% Prefix /11	0.01
Prefix count /12	302	% Prefix /12	0.03
Prefix count /13	582	% Prefix /13	0.06
Prefix count /14	1228	% Prefix /14	0.12
Prefix count /15	2175	% Prefix /15	0.22
Prefix count /16	14002	% Prefix /16	1.40
Prefix count /17	8421	% Prefix /17	0.84
Prefix count /18	14038	% Prefix /18	1.40
Prefix count /19	25142	% Prefix /19	2.51
Prefix count /20	45657	% Prefix /20	4.55
Prefix count /21	53221	% Prefix /21	5.30
Prefix count /22	114128	% Prefix /22	11.37
Prefix count /23	106171	% Prefix /23	10.58
Prefix count /24	617469	% Prefix /24	61.53
Prefix count /25	805	% Prefix /25	0.08
Prefix count /26	0	% Prefix /26	0.00
Prefix count /27	1	% Prefix /27	0.00
Prefix count /28	1	% Prefix /28	0.00
Prefix count /29	2	% Prefix /29	0.00
Prefix count /30	0	% Prefix /30	0.00
Prefix count /31	0	% Prefix /31	0.00
Prefix count /32	16	% 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	86	% Prefix /11	0.02
Prefix count /12	265	% Prefix /12	0.06
Prefix count /13	488	% Prefix /13	0.10
Prefix count /14	1045	% Prefix /14	0.22
Prefix count /15	1671	% Prefix /15	0.35
Prefix count /16	11056	% Prefix /16	2.32
Prefix count /17	4463	% Prefix /17	0.94
Prefix count /18	6919	% Prefix /18	1.45
Prefix count /19	14796	% Prefix /19	3.11
Prefix count /20	18898	% Prefix /20	3.97
Prefix count /21	22388	% Prefix /21	4.70
Prefix count /22	59369	% Prefix /22	12.47
Prefix count /23	42650	% Prefix /23	8.96
Prefix count /24	292095	% Prefix /24	61.33
Prefix count /25	12	% 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	253493667	% Addresses at AS distance 2	6.0
Addresses at AS distance 3	1153823885	% Addresses at AS distance 3	27.1
Addresses at AS distance 4	1994339232	% Addresses at AS distance 4	46.9
Addresses at AS distance 5	644502400	% Addresses at AS distance 5	15.2
Addresses at AS distance 6	178586368	% Addresses at AS distance 6	4.2
Addresses at AS distance 7	19694976	% Addresses at AS distance 7	0.5
Addresses at AS distance 8	8568320	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	328448	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	55808	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	2048	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	256	% Addresses at AS distance 12	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	253498787	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1407322672	% Addresses reachable within 3 AS hops	33
Addresses reachable within 4 AS hops	3401661904	% Addresses reachable within 4 AS hops	79
Addresses reachable within 5 AS hops	4046164304	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4224750672	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4244445648	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4253013968	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4253342416	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4253398224	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4253400272	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4253400528	% Addresses reachable within 12 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	9513	% ASes reachable at 3 AS hops	12
ASes reachable at 4 AS hops	28781	% ASes reachable at 4 AS hops	37
ASes reachable at 5 AS hops	28776	% ASes reachable at 5 AS hops	37
ASes reachable at 6 AS hops	7498	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1590	% ASes reachable at 7 AS hops	2
ASes reachable at 8 AS hops	345	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	81	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	12	% ASes reachable at 10 AS hops	0
ASes reachable at 11 AS hops	0	% ASes reachable at 11 AS hops	0
ASes reachable at 12 AS hops	0	% ASes reachable at 12 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	9879	Cumulative % ASes by AS hops 3	12.8
ASes reachable by 4 AS hops	38660	Cumulative % ASes by AS hops 4	50.2
ASes reachable by 5 AS hops	67436	Cumulative % ASes by AS hops 5	87.6
ASes reachable by 6 AS hops	74934	Cumulative % ASes by AS hops 6	97.4
ASes reachable by 7 AS hops	76524	Cumulative % ASes by AS hops 7	99.4
ASes reachable by 8 AS hops	76869	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	76950	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	76962	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	76962	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	76962	Cumulative % ASes by AS hops 12	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	1928	New Entries	204	Removed Entries	284	Updated Entries	1440
		Report		Report		Report
Address Span	6368513	Address Span	188417	Address Span	247296	Address Span	5932800
Average address span per update	3303	Avg Span	923	Avg Span	870	Avg Span	4120
Average prefix size updated	23.42	Average prefix size	23.52	Average prefix size	23.41	Average prefix size	23.41
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /14 total	5	Prefix /14 announcements	0	Prefix /14 withdrawals	0	Prefix /14 path updates	5
Prefix /15 total	12	Prefix /15 announcements	0	Prefix /15 withdrawals	0	Prefix /15 path updates	12
Prefix /16 total	32	Prefix /16 announcements	1	Prefix /16 withdrawals	0	Prefix /16 path updates	31
Prefix /17 total	5	Prefix /17 announcements	0	Prefix /17 withdrawals	1	Prefix /17 path updates	4
Prefix /18 total	8	Prefix /18 announcements	0	Prefix /18 withdrawals	2	Prefix /18 path updates	6
Prefix /19 total	21	Prefix /19 announcements	3	Prefix /19 withdrawals	5	Prefix /19 path updates	13
Prefix /20 total	75	Prefix /20 announcements	6	Prefix /20 withdrawals	9	Prefix /20 path updates	60
Prefix /21 total	39	Prefix /21 announcements	6	Prefix /21 withdrawals	8	Prefix /21 path updates	25
Prefix /22 total	112	Prefix /22 announcements	12	Prefix /22 withdrawals	20	Prefix /22 path updates	80
Prefix /23 total	154	Prefix /23 announcements	17	Prefix /23 withdrawals	23	Prefix /23 path updates	114
Prefix /24 total	1194	Prefix /24 announcements	158	Prefix /24 withdrawals	216	Prefix /24 path updates	820
Prefix /25 total	270	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	270
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	1	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	2.12	Prefix /14 announcements	0.00	Prefix /14 withdrawals	0.00	Prefix /14 path updates	2.84
Prefix /15 total	2.87	Prefix /15 announcements	0.00	Prefix /15 withdrawals	0.00	Prefix /15 path updates	3.84
Prefix /16 total	1.19	Prefix /16 announcements	0.35	Prefix /16 withdrawals	0.00	Prefix /16 path updates	1.54
Prefix /17 total	0.31	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.42	Prefix /17 path updates	0.33
Prefix /18 total	0.30	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.50	Prefix /18 path updates	0.30
Prefix /19 total	0.43	Prefix /19 announcements	0.59	Prefix /19 withdrawals	0.70	Prefix /19 path updates	0.36
Prefix /20 total	0.86	Prefix /20 announcements	0.65	Prefix /20 withdrawals	0.70	Prefix /20 path updates	0.92
Prefix /21 total	0.38	Prefix /21 announcements	0.55	Prefix /21 withdrawals	0.53	Prefix /21 path updates	0.33
Prefix /22 total	0.51	Prefix /22 announcements	0.52	Prefix /22 withdrawals	0.62	Prefix /22 path updates	0.49
Prefix /23 total	0.75	Prefix /23 announcements	0.79	Prefix /23 withdrawals	0.77	Prefix /23 path updates	0.75
Prefix /24 total	1.01	Prefix /24 announcements	1.26	Prefix /24 withdrawals	1.24	Prefix /24 path updates	0.93
Prefix /25 total	174.58	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	233.74
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	32.53	Prefix /32 announcements	307.45	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	1928.000	New Entries	204.000	Removed Entries	284.000	Updated Entries	1440.000
Address Span	6368513.000	Address Span	188417.000	Address Span	247296.000	Address Span	5932800.000
Average address span per update	3303.000	Avg Span	923.000	Avg Span	870.000	Avg Span	4120.000
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	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	5.000	Prefix /14 announcements	0.000	Prefix /14 withdrawals	0.000	Prefix /14 path updates	5.000
Prefix /15 update rate	12.000	Prefix /15 announcements	0.000	Prefix /15 withdrawals	0.000	Prefix /15 path updates	12.000
Prefix /16 update rate	32.000	Prefix /16 announcements	1.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	31.000
Prefix /17 update rate	5.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	1.000	Prefix /17 path updates	4.000
Prefix /18 update rate	8.000	Prefix /18 announcements	0.000	Prefix /18 withdrawals	2.000	Prefix /18 path updates	6.000
Prefix /19 update rate	21.000	Prefix /19 announcements	3.000	Prefix /19 withdrawals	5.000	Prefix /19 path updates	13.000
Prefix /20 update rate	75.000	Prefix /20 announcements	6.000	Prefix /20 withdrawals	9.000	Prefix /20 path updates	60.000
Prefix /21 update rate	39.000	Prefix /21 announcements	6.000	Prefix /21 withdrawals	8.000	Prefix /21 path updates	25.000
Prefix /22 update rate	112.000	Prefix /22 announcements	12.000	Prefix /22 withdrawals	20.000	Prefix /22 path updates	80.000
Prefix /23 update rate	154.000	Prefix /23 announcements	17.000	Prefix /23 withdrawals	23.000	Prefix /23 path updates	114.000
Prefix /24 update rate	1194.000	Prefix /24 announcements	158.000	Prefix /24 withdrawals	216.000	Prefix /24 path updates	820.000
Prefix /25 update rate	270.000	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	270.000
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	1.000	Prefix /32 announcements	1.000	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	618	Origin Paths	66	NextHop Paths	197	Transit Paths	203	Paths	136	Paths	16
Report
/14 Tot	5	/14 Org	0	/14 Nxt	0	/14 Trn	0	/14 Fst	5	/14 Prp	0
/15 Tot	12	/15 Org	0	/15 Nxt	0	/15 Trn	0	/15 Fst	12	/15 Prp	0
/16 Tot	31	/16 Org	0	/16 Nxt	0	/16 Trn	1	/16 Fst	30	/16 Prp	0
/17 Tot	4	/17 Org	0	/17 Nxt	0	/17 Trn	0	/17 Fst	4	/17 Prp	0
/18 Tot	6	/18 Org	0	/18 Nxt	2	/18 Trn	0	/18 Fst	4	/18 Prp	0
/19 Tot	13	/19 Org	0	/19 Nxt	2	/19 Trn	3	/19 Fst	5	/19 Prp	3
/20 Tot	60	/20 Org	1	/20 Nxt	32	/20 Trn	3	/20 Fst	12	/20 Prp	12
/21 Tot	25	/21 Org	0	/21 Nxt	7	/21 Trn	10	/21 Fst	7	/21 Prp	1
/22 Tot	80	/22 Org	1	/22 Nxt	35	/22 Trn	25	/22 Fst	19	/22 Prp	0
/23 Tot	114	/23 Org	1	/23 Nxt	41	/23 Trn	31	/23 Fst	39	/23 Prp	2
/24 Tot	820	/24 Org	13	/24 Nxt	371	/24 Trn	231	/24 Fst	189	/24 Prp	16
/25 Tot	270	/25 Org	60	/25 Nxt	18	/25 Trn	0	/25 Fst	192	/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	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	70	% AS's announcing span of /9	0.0009
AS's announcing span of /10	106	% AS's announcing span of /10	0.0014
AS's announcing span of /11	169	% AS's announcing span of /11	0.0022
AS's announcing span of /12	242	% AS's announcing span of /12	0.0032
AS's announcing span of /13	399	% AS's announcing span of /13	0.0052
AS's announcing span of /14	840	% AS's announcing span of /14	0.0110
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	2457	% AS's announcing span of /17	0.0322
AS's announcing span of /18	3739	% AS's announcing span of /18	0.0490
AS's announcing span of /19	5151	% AS's announcing span of /19	0.0675
AS's announcing span of /20	7546	% AS's announcing span of /20	0.0989
AS's announcing span of /21	10451	% AS's announcing span of /21	0.1369
AS's announcing span of /22	12786	% AS's announcing span of /22	0.1675
AS's announcing span of /23	9870	% AS's announcing span of /23	0.1293
AS's announcing span of /24	18974	% AS's announcing span of /24	0.2486
AS's announcing span of /25	17	% 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	128525
Average AS Connectivity Degree (257050/76962)	3.3400
Average AS Connectivity IN:OUT Degree	0.1550
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	556245	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	539049	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	378988	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	379014	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 Wed Apr 2 05:01:09 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