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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Mon Mar 24 16:01:09 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)	1004464	Change in FIB Size	221	Change (%)	0.022
All BGP entries (RIB)	2975653
RIB/FIB ratio (2975653/1004464)	2.9624
Valid entries	2975653
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)	3109908992
Total address space advertised (prefix length)	0.46577478
Percentage of IPv4 space advertised (3109908992/4294967295)	72.408211
Total address space advertised - corrected to 19 /8s	(data)
Average address span	3096
Average address span (as prefix size)	20.4038
Average prefix length	22.9031

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	528431	Specifics as % of FIB entries (528431/1004464)	52.6083
Specifics as % of address span (1147906899/3109908992)	36.9113
Specifics where AS prepended Path matches aggregate	223987	AS-P_Path-Match % (223987/528431)	42.39
AS Path matches aggregate	243111	AS-Path-Match % (243111/528431)	46.0062
AS Origin matches aggregate	406034	AS-Origin-Match % (406034/528431)	76.8377
Root Prefixes	476033
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	418605
Root Prefixes with depth 1	46243
Root Prefixes with depth 2	9069
Root Prefixes with depth 3	1610
Root Prefixes with depth 4	390
Root Prefixes with depth 5	82
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	76966	ASes visible in only one AS path	46070
Origin only ASes	65574	Origin ASs announced via a single AS path	45550
Transit only ASes	558	Originating AS ATOM count	76408
Mixed ASes	10834	Originating AS ATOM compression	0.0761
Multi-Origin Prefixes	1747
ASes originating a single prefix	26747
Average FIB entries per Origin AS	13.1461	Maximum entries for an origin AS (AS7713)	3692
Average address range span for an origin AS	40701.3532	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	249821	Unique AS prepended Paths	269367
AS Paths used in FIB	128621	AS Paths using prepending	71304
AS paths associated with a single FIB entry	61019	AS Paths using private ASs	55
Average AS path length	5.2659	Number of Prefixes with Selected AS Prepending Paths	153245
Maximum AS Path length	13	Number of Prefixes with AS Prepending Paths	153245
Average address weighted AS path length	6.6668	Maximum prepended AS Path length	91
Average entries per AS Path	4.0207	Average entries per FIB AS Path	7.8095
AS Paths per origin AS	3.2696	FIB AS Paths per origin AS	1.6833
AS PATH ATOM compression	0.1280

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	303	% Prefix /12	0.03
Prefix count /13	584	% Prefix /13	0.06
Prefix count /14	1225	% Prefix /14	0.12
Prefix count /15	2176	% Prefix /15	0.22
Prefix count /16	14027	% Prefix /16	1.40
Prefix count /17	8442	% Prefix /17	0.84
Prefix count /18	14031	% Prefix /18	1.40
Prefix count /19	25152	% Prefix /19	2.50
Prefix count /20	45737	% Prefix /20	4.55
Prefix count /21	53274	% Prefix /21	5.30
Prefix count /22	114171	% Prefix /22	11.37
Prefix count /23	106241	% Prefix /23	10.58
Prefix count /24	618110	% Prefix /24	61.54
Prefix count /25	802	% 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	19	% 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	266	% Prefix /12	0.06
Prefix count /13	487	% Prefix /13	0.10
Prefix count /14	1043	% Prefix /14	0.22
Prefix count /15	1670	% Prefix /15	0.35
Prefix count /16	11064	% Prefix /16	2.32
Prefix count /17	4468	% Prefix /17	0.94
Prefix count /18	6934	% Prefix /18	1.46
Prefix count /19	14810	% Prefix /19	3.11
Prefix count /20	18889	% Prefix /20	3.97
Prefix count /21	22427	% Prefix /21	4.71
Prefix count /22	59434	% Prefix /22	12.49
Prefix count /23	42614	% Prefix /23	8.95
Prefix count /24	291757	% Prefix /24	61.29
Prefix count /25	18	% 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	253037220	% Addresses at AS distance 2	5.9
Addresses at AS distance 3	1155117199	% Addresses at AS distance 3	27.1
Addresses at AS distance 4	1992184352	% Addresses at AS distance 4	46.8
Addresses at AS distance 5	648934656	% Addresses at AS distance 5	15.2
Addresses at AS distance 6	178683520	% Addresses at AS distance 6	4.2
Addresses at AS distance 7	20731776	% Addresses at AS distance 7	0.5
Addresses at AS distance 8	8807424	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	249344	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	60416	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	4608	% 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	253042340	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1408159539	% Addresses reachable within 3 AS hops	33
Addresses reachable within 4 AS hops	3400343891	% Addresses reachable within 4 AS hops	79
Addresses reachable within 5 AS hops	4049278547	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4227962067	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4248693843	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4257501267	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4257750611	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4257811027	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4257815635	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4257815891	% 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	362	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	9527	% ASes reachable at 3 AS hops	12
ASes reachable at 4 AS hops	28705	% ASes reachable at 4 AS hops	37
ASes reachable at 5 AS hops	28874	% ASes reachable at 5 AS hops	37
ASes reachable at 6 AS hops	7476	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1571	% ASes reachable at 7 AS hops	2
ASes reachable at 8 AS hops	371	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	65	% 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	1	% 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	365	Cumulative % ASes by AS hops 2	0.5
ASes reachable by 3 AS hops	9892	Cumulative % ASes by AS hops 3	12.9
ASes reachable by 4 AS hops	38597	Cumulative % ASes by AS hops 4	50.1
ASes reachable by 5 AS hops	67471	Cumulative % ASes by AS hops 5	87.7
ASes reachable by 6 AS hops	74947	Cumulative % ASes by AS hops 6	97.4
ASes reachable by 7 AS hops	76518	Cumulative % ASes by AS hops 7	99.4
ASes reachable by 8 AS hops	76889	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	76954	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	76965	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	76966	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	76966	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	3143	New Entries	381	Removed Entries	146	Updated Entries	2616
		Report		Report		Report
Address Span	3303171	Address Span	256002	Address Span	145153	Address Span	2902016
Average address span per update	1050	Avg Span	671	Avg Span	994	Avg Span	1109
Average prefix size updated	23.54	Average prefix size	23.46	Average prefix size	23.56	Average prefix size	23.55
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /16 total	12	Prefix /16 announcements	0	Prefix /16 withdrawals	1	Prefix /16 path updates	11
Prefix /17 total	18	Prefix /17 announcements	1	Prefix /17 withdrawals	0	Prefix /17 path updates	17
Prefix /18 total	10	Prefix /18 announcements	1	Prefix /18 withdrawals	0	Prefix /18 path updates	9
Prefix /19 total	37	Prefix /19 announcements	4	Prefix /19 withdrawals	0	Prefix /19 path updates	33
Prefix /20 total	96	Prefix /20 announcements	6	Prefix /20 withdrawals	8	Prefix /20 path updates	82
Prefix /21 total	59	Prefix /21 announcements	5	Prefix /21 withdrawals	2	Prefix /21 path updates	52
Prefix /22 total	200	Prefix /22 announcements	31	Prefix /22 withdrawals	7	Prefix /22 path updates	162
Prefix /23 total	321	Prefix /23 announcements	89	Prefix /23 withdrawals	12	Prefix /23 path updates	220
Prefix /24 total	2119	Prefix /24 announcements	242	Prefix /24 withdrawals	115	Prefix /24 path updates	1762
Prefix /25 total	268	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	268
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	3	Prefix /32 announcements	2	Prefix /32 withdrawals	1	Prefix /32 path updates	0
Update rate, normalized by prefix count		Announce		Withdraw		Path Chg
Prefix /8 total	0.00	Prefix /8 announcements	0.00	Prefix /8 withdrawals	0.00	Prefix /8 path updates	0.00
Prefix /9 total	0.00	Prefix /9 announcements	0.00	Prefix /9 withdrawals	0.00	Prefix /9 path updates	0.00
Prefix /10 total	0.00	Prefix /10 announcements	0.00	Prefix /10 withdrawals	0.00	Prefix /10 path updates	0.00
Prefix /11 total	0.00	Prefix /11 announcements	0.00	Prefix /11 withdrawals	0.00	Prefix /11 path updates	0.00
Prefix /12 total	0.00	Prefix /12 announcements	0.00	Prefix /12 withdrawals	0.00	Prefix /12 path updates	0.00
Prefix /13 total	0.00	Prefix /13 announcements	0.00	Prefix /13 withdrawals	0.00	Prefix /13 path updates	0.00
Prefix /14 total	0.00	Prefix /14 announcements	0.00	Prefix /14 withdrawals	0.00	Prefix /14 path updates	0.00
Prefix /15 total	0.00	Prefix /15 announcements	0.00	Prefix /15 withdrawals	0.00	Prefix /15 path updates	0.00
Prefix /16 total	0.27	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.49	Prefix /16 path updates	0.30
Prefix /17 total	0.68	Prefix /17 announcements	0.31	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.77
Prefix /18 total	0.23	Prefix /18 announcements	0.19	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.25
Prefix /19 total	0.47	Prefix /19 announcements	0.42	Prefix /19 withdrawals	0.00	Prefix /19 path updates	0.50
Prefix /20 total	0.67	Prefix /20 announcements	0.35	Prefix /20 withdrawals	1.20	Prefix /20 path updates	0.69
Prefix /21 total	0.35	Prefix /21 announcements	0.25	Prefix /21 withdrawals	0.26	Prefix /21 path updates	0.37
Prefix /22 total	0.56	Prefix /22 announcements	0.72	Prefix /22 withdrawals	0.42	Prefix /22 path updates	0.54
Prefix /23 total	0.97	Prefix /23 announcements	2.21	Prefix /23 withdrawals	0.78	Prefix /23 path updates	0.80
Prefix /24 total	1.10	Prefix /24 announcements	1.03	Prefix /24 withdrawals	1.28	Prefix /24 path updates	1.09
Prefix /25 total	106.79	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	128.31
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	50.46	Prefix /32 announcements	277.51	Prefix /32 withdrawals	362.10	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	3143.873	New Entries	381.106	Removed Entries	146.041	Updated Entries	2616.727
Address Span	3304088.750	Address Span	256073.125	Address Span	145193.328	Address Span	2902822.250
Average address span per update	1050.292	Avg Span	671.186	Avg Span	994.276	Avg Span	1109.308
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	12.003	Prefix /16 announcements	0.000	Prefix /16 withdrawals	1.000	Prefix /16 path updates	11.003
Prefix /17 update rate	18.005	Prefix /17 announcements	1.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	17.005
Prefix /18 update rate	10.003	Prefix /18 announcements	1.000	Prefix /18 withdrawals	0.000	Prefix /18 path updates	9.003
Prefix /19 update rate	37.010	Prefix /19 announcements	4.001	Prefix /19 withdrawals	0.000	Prefix /19 path updates	33.009
Prefix /20 update rate	96.027	Prefix /20 announcements	6.002	Prefix /20 withdrawals	8.002	Prefix /20 path updates	82.023
Prefix /21 update rate	59.016	Prefix /21 announcements	5.001	Prefix /21 withdrawals	2.001	Prefix /21 path updates	52.014
Prefix /22 update rate	200.056	Prefix /22 announcements	31.009	Prefix /22 withdrawals	7.002	Prefix /22 path updates	162.045
Prefix /23 update rate	321.089	Prefix /23 announcements	89.025	Prefix /23 withdrawals	12.003	Prefix /23 path updates	220.061
Prefix /24 update rate	2119.589	Prefix /24 announcements	242.067	Prefix /24 withdrawals	115.032	Prefix /24 path updates	1762.490
Prefix /25 update rate	268.074	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	268.074
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	3.001	Prefix /32 announcements	2.001	Prefix /32 withdrawals	1.000	Prefix /32 path updates	0.000

Path Updates - Breakdown by Update Type

Examines those updates that involved a change of AS Path and breaks this down into five categories:

A change of origin AS (origin)
A change in the origin's nexthop AS (remote change)
A change in the transit AS path (transit)
A change in the firsthop AS (Local change)
A change in AS prepending (Traffic Engineering)

Total	Data	Origin	Data	Origin Next Hop	Data	Transit	Data	First Hop	Data	Prepend	Data
Total Path Changes	809	Origin Paths	62	NextHop Paths	230	Transit Paths	263	Paths	220	Paths	34
Report
/16 Tot	11	/16 Org	1	/16 Nxt	8	/16 Trn	1	/16 Fst	1	/16 Prp	0
/17 Tot	17	/17 Org	0	/17 Nxt	16	/17 Trn	0	/17 Fst	1	/17 Prp	0
/18 Tot	9	/18 Org	0	/18 Nxt	4	/18 Trn	1	/18 Fst	4	/18 Prp	0
/19 Tot	33	/19 Org	0	/19 Nxt	11	/19 Trn	12	/19 Fst	9	/19 Prp	1
/20 Tot	82	/20 Org	0	/20 Nxt	14	/20 Trn	45	/20 Fst	23	/20 Prp	0
/21 Tot	52	/21 Org	0	/21 Nxt	18	/21 Trn	16	/21 Fst	17	/21 Prp	1
/22 Tot	162	/22 Org	0	/22 Nxt	47	/22 Trn	47	/22 Fst	66	/22 Prp	2
/23 Tot	220	/23 Org	1	/23 Nxt	45	/23 Trn	56	/23 Fst	79	/23 Prp	39
/24 Tot	1762	/24 Org	5	/24 Nxt	467	/24 Trn	909	/24 Fst	333	/24 Prp	48
/25 Tot	268	/25 Org	59	/25 Nxt	18	/25 Trn	0	/25 Fst	191	/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	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	170	% AS's announcing span of /11	0.0022
AS's announcing span of /12	241	% AS's announcing span of /12	0.0032
AS's announcing span of /13	402	% AS's announcing span of /13	0.0053
AS's announcing span of /14	841	% AS's announcing span of /14	0.0110
AS's announcing span of /15	1659	% AS's announcing span of /15	0.0217
AS's announcing span of /16	1757	% AS's announcing span of /16	0.0230
AS's announcing span of /17	2459	% AS's announcing span of /17	0.0322
AS's announcing span of /18	3755	% AS's announcing span of /18	0.0492
AS's announcing span of /19	5144	% AS's announcing span of /19	0.0674
AS's announcing span of /20	7554	% AS's announcing span of /20	0.0990
AS's announcing span of /21	10455	% AS's announcing span of /21	0.1370
AS's announcing span of /22	12820	% AS's announcing span of /22	0.1679
AS's announcing span of /23	9845	% AS's announcing span of /23	0.1290
AS's announcing span of /24	18960	% 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.

`±4è5 `±4è5 `±4è5

AS Connectivity Report	Data
AS Adjacency Count	128669
Average AS Connectivity Degree (257338/76966)	3.3435
Average AS Connectivity IN:OUT Degree	0.1555
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	567399	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	551463	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	378545	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	378573	Report (sort by %reduction)	Report (sort by reduction)	BGP Table

BGP Table

Table Summary Report

BGP Report

BGP data obtained from the boundary of AS65000

Report last updated at Mon Mar 24 16:01:09 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