BGP Home Table Reports CIDR Reports Update Reports IPv4 Reports IPv6 Reports ASN Reports Distribution Reports

AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Thu Apr 24 13:01:10 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)	1007055	Change in FIB Size	80	Change (%)	0.008
All BGP entries (RIB)	2982135
RIB/FIB ratio (2982135/1007055)	2.9612
Valid entries	2982135
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)	3107990656
Total address space advertised (prefix length)	0.46666498
Percentage of IPv4 space advertised (3107990656/4294967295)	72.363547
Total address space advertised - corrected to 19 /8s	(data)
Average address span	3086
Average address span (as prefix size)	20.4085
Average prefix length	22.9065

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	528405	Specifics as % of FIB entries (528405/1007055)	52.4703
Specifics as % of address span (1142113926/3107990656)	36.7477
Specifics where AS prepended Path matches aggregate	229070	AS-P_Path-Match % (229070/528405)	43.35
AS Path matches aggregate	249818	AS-Path-Match % (249818/528405)	47.2778
AS Origin matches aggregate	405815	AS-Origin-Match % (405815/528405)	76.8000
Root Prefixes	478650
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	421241
Root Prefixes with depth 1	46282
Root Prefixes with depth 2	9006
Root Prefixes with depth 3	1613
Root Prefixes with depth 4	394
Root Prefixes with depth 5	81
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	77075	ASes visible in only one AS path	46499
Origin only ASes	65647	Origin ASs announced via a single AS path	45974
Transit only ASes	560	Originating AS ATOM count	76515
Mixed ASes	10868	Originating AS ATOM compression	0.0760
Multi-Origin Prefixes	1745
ASes originating a single prefix	26787
Average FIB entries per Origin AS	13.1615	Maximum entries for an origin AS (AS7713)	3696
Average address range span for an origin AS	40619.3643	Maximum address range for an origin AS (AS749)	228349440

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	250746	Unique AS prepended Paths	270091
AS Paths used in FIB	127056	AS Paths using prepending	70490
AS paths associated with a single FIB entry	59988	AS Paths using private ASs	40
Average AS path length	5.2655	Number of Prefixes with Selected AS Prepending Paths	152522
Maximum AS Path length	13	Number of Prefixes with AS Prepending Paths	152522
Average address weighted AS path length	6.6605	Maximum prepended AS Path length	131
Average entries per AS Path	4.0162	Average entries per FIB AS Path	7.9261
AS Paths per origin AS	3.2771	FIB AS Paths per origin AS	1.6605
AS PATH ATOM compression	0.1262

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	300	% Prefix /12	0.03
Prefix count /13	583	% Prefix /13	0.06
Prefix count /14	1224	% Prefix /14	0.12
Prefix count /15	2169	% Prefix /15	0.22
Prefix count /16	13986	% Prefix /16	1.39
Prefix count /17	8423	% Prefix /17	0.84
Prefix count /18	14039	% Prefix /18	1.39
Prefix count /19	25127	% Prefix /19	2.50
Prefix count /20	45649	% Prefix /20	4.53
Prefix count /21	53287	% Prefix /21	5.29
Prefix count /22	114217	% Prefix /22	11.34
Prefix count /23	106708	% Prefix /23	10.60
Prefix count /24	620335	% Prefix /24	61.60
Prefix count /25	799	% Prefix /25	0.08
Prefix count /26	0	% Prefix /26	0.00
Prefix count /27	2	% 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	38	% 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	264	% Prefix /12	0.06
Prefix count /13	488	% Prefix /13	0.10
Prefix count /14	1044	% Prefix /14	0.22
Prefix count /15	1666	% Prefix /15	0.35
Prefix count /16	11055	% Prefix /16	2.31
Prefix count /17	4463	% Prefix /17	0.93
Prefix count /18	6923	% Prefix /18	1.45
Prefix count /19	14779	% Prefix /19	3.09
Prefix count /20	18977	% Prefix /20	3.96
Prefix count /21	22428	% Prefix /21	4.69
Prefix count /22	59473	% Prefix /22	12.43
Prefix count /23	42804	% Prefix /23	8.94
Prefix count /24	294123	% Prefix /24	61.45
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	4864	% Addresses at AS distance 1	0.0
Addresses at AS distance 2	252967362	% Addresses at AS distance 2	6.0
Addresses at AS distance 3	1146463396	% Addresses at AS distance 3	27.0
Addresses at AS distance 4	1995413920	% Addresses at AS distance 4	46.9
Addresses at AS distance 5	646685696	% Addresses at AS distance 5	15.2
Addresses at AS distance 6	179363072	% Addresses at AS distance 6	4.2
Addresses at AS distance 7	20156928	% Addresses at AS distance 7	0.5
Addresses at AS distance 8	8609536	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	332800	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	98816	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	6656	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	1280	% 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	252972482	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1399435878	% Addresses reachable within 3 AS hops	32
Addresses reachable within 4 AS hops	3394849798	% Addresses reachable within 4 AS hops	79
Addresses reachable within 5 AS hops	4041535494	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4220898566	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4241055494	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4249665030	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4249997830	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4250096646	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4250103302	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4250104582	% 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	365	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	9500	% ASes reachable at 3 AS hops	12
ASes reachable at 4 AS hops	28951	% ASes reachable at 4 AS hops	37
ASes reachable at 5 AS hops	28832	% ASes reachable at 5 AS hops	37
ASes reachable at 6 AS hops	7412	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1522	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	385	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	86	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	19	% 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	368	Cumulative % ASes by AS hops 2	0.5
ASes reachable by 3 AS hops	9868	Cumulative % ASes by AS hops 3	12.8
ASes reachable by 4 AS hops	38819	Cumulative % ASes by AS hops 4	50.4
ASes reachable by 5 AS hops	67651	Cumulative % ASes by AS hops 5	87.8
ASes reachable by 6 AS hops	75063	Cumulative % ASes by AS hops 6	97.4
ASes reachable by 7 AS hops	76585	Cumulative % ASes by AS hops 7	99.4
ASes reachable by 8 AS hops	76970	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	77056	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	77075	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	77075	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	77075	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	4019	New Entries	280	Removed Entries	195	Updated Entries	3544
		Report		Report		Report
Address Span	4321930	Address Span	171529	Address Span	83201	Address Span	4067200
Average address span per update	1075	Avg Span	612	Avg Span	426	Avg Span	1147
Average prefix size updated	23.36	Average prefix size	23.78	Average prefix size	23.67	Average prefix size	23.31
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /15 total	1	Prefix /15 announcements	0	Prefix /15 withdrawals	0	Prefix /15 path updates	1
Prefix /16 total	2	Prefix /16 announcements	0	Prefix /16 withdrawals	0	Prefix /16 path updates	2
Prefix /17 total	27	Prefix /17 announcements	1	Prefix /17 withdrawals	0	Prefix /17 path updates	26
Prefix /18 total	16	Prefix /18 announcements	0	Prefix /18 withdrawals	0	Prefix /18 path updates	16
Prefix /19 total	70	Prefix /19 announcements	2	Prefix /19 withdrawals	0	Prefix /19 path updates	68
Prefix /20 total	210	Prefix /20 announcements	4	Prefix /20 withdrawals	3	Prefix /20 path updates	203
Prefix /21 total	116	Prefix /21 announcements	7	Prefix /21 withdrawals	4	Prefix /21 path updates	105
Prefix /22 total	354	Prefix /22 announcements	22	Prefix /22 withdrawals	9	Prefix /22 path updates	323
Prefix /23 total	357	Prefix /23 announcements	35	Prefix /23 withdrawals	31	Prefix /23 path updates	291
Prefix /24 total	2585	Prefix /24 announcements	200	Prefix /24 withdrawals	147	Prefix /24 path updates	2238
Prefix /25 total	271	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	271
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	10	Prefix /32 announcements	9	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	0.12	Prefix /15 announcements	0.00	Prefix /15 withdrawals	0.00	Prefix /15 path updates	0.13
Prefix /16 total	0.04	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.04
Prefix /17 total	0.80	Prefix /17 announcements	0.43	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.88
Prefix /18 total	0.29	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.32
Prefix /19 total	0.70	Prefix /19 announcements	0.29	Prefix /19 withdrawals	0.00	Prefix /19 path updates	0.77
Prefix /20 total	1.15	Prefix /20 announcements	0.32	Prefix /20 withdrawals	0.34	Prefix /20 path updates	1.26
Prefix /21 total	0.55	Prefix /21 announcements	0.47	Prefix /21 withdrawals	0.39	Prefix /21 path updates	0.56
Prefix /22 total	0.78	Prefix /22 announcements	0.69	Prefix /22 withdrawals	0.41	Prefix /22 path updates	0.80
Prefix /23 total	0.84	Prefix /23 announcements	1.18	Prefix /23 withdrawals	1.50	Prefix /23 path updates	0.77
Prefix /24 total	1.04	Prefix /24 announcements	1.16	Prefix /24 withdrawals	1.22	Prefix /24 path updates	1.03
Prefix /25 total	84.99	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	96.38
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	65.94	Prefix /32 announcements	851.83	Prefix /32 withdrawals	135.90	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	4017.884	New Entries	279.922	Removed Entries	194.946	Updated Entries	3543.016
Address Span	4320730.000	Address Span	171481.359	Address Span	83177.898	Address Span	4066070.500
Average address span per update	1074.701	Avg Span	611.830	Avg Span	425.882	Avg Span	1146.682
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	1.000	Prefix /15 announcements	0.000	Prefix /15 withdrawals	0.000	Prefix /15 path updates	1.000
Prefix /16 update rate	1.999	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	1.999
Prefix /17 update rate	26.993	Prefix /17 announcements	1.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	25.993
Prefix /18 update rate	15.996	Prefix /18 announcements	0.000	Prefix /18 withdrawals	0.000	Prefix /18 path updates	15.996
Prefix /19 update rate	69.981	Prefix /19 announcements	1.999	Prefix /19 withdrawals	0.000	Prefix /19 path updates	67.981
Prefix /20 update rate	209.942	Prefix /20 announcements	3.999	Prefix /20 withdrawals	2.999	Prefix /20 path updates	202.944
Prefix /21 update rate	115.968	Prefix /21 announcements	6.998	Prefix /21 withdrawals	3.999	Prefix /21 path updates	104.971
Prefix /22 update rate	353.902	Prefix /22 announcements	21.994	Prefix /22 withdrawals	8.998	Prefix /22 path updates	322.910
Prefix /23 update rate	356.901	Prefix /23 announcements	34.990	Prefix /23 withdrawals	30.991	Prefix /23 path updates	290.919
Prefix /24 update rate	2584.282	Prefix /24 announcements	199.944	Prefix /24 withdrawals	146.959	Prefix /24 path updates	2237.378
Prefix /25 update rate	270.925	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	270.925
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	9.997	Prefix /32 announcements	8.998	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

1168

291

331

406

Report

/15 Tot

/15 Org

/15 Nxt

/15 Trn

/15 Fst

/15 Prp

/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

203

/20 Org

/20 Nxt

102

/20 Trn

/20 Fst

/20 Prp

/21 Tot

105

/21 Org

/21 Nxt

/21 Trn

/21 Fst

/21 Prp

/22 Tot

323

/22 Org

/22 Nxt

/22 Trn

141

/22 Fst

/22 Prp

/23 Tot

291

/23 Org

/23 Nxt

/23 Trn

120

/23 Fst

/23 Prp

/24 Tot

2238

/24 Org

/24 Nxt

471

/24 Trn

1104

/24 Fst

542

/24 Prp

109

/25 Tot

271

/25 Org

/25 Nxt

/25 Trn

/25 Fst

194

/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	70	% 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	245	% AS's announcing span of /12	0.0032
AS's announcing span of /13	397	% AS's announcing span of /13	0.0052
AS's announcing span of /14	844	% AS's announcing span of /14	0.0110
AS's announcing span of /15	1657	% AS's announcing span of /15	0.0217
AS's announcing span of /16	1759	% AS's announcing span of /16	0.0230
AS's announcing span of /17	2444	% AS's announcing span of /17	0.0320
AS's announcing span of /18	3748	% AS's announcing span of /18	0.0490
AS's announcing span of /19	5167	% AS's announcing span of /19	0.0676
AS's announcing span of /20	7536	% AS's announcing span of /20	0.0986
AS's announcing span of /21	10427	% AS's announcing span of /21	0.1364
AS's announcing span of /22	12821	% AS's announcing span of /22	0.1677
AS's announcing span of /23	9945	% AS's announcing span of /23	0.1301
AS's announcing span of /24	19010	% AS's announcing span of /24	0.2487
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.

€¦ĎďtU €¦ĎďtU €¦ĎďtU

AS Connectivity Report	Data
AS Adjacency Count	128829
Average AS Connectivity Degree (257658/77075)	3.3430
Average AS Connectivity IN:OUT Degree	0.1556
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	562049	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	545293	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	380669	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	380696	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 Apr 24 13:01:10 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