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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Mon Dec 8 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)	1044794	Change in FIB Size	-82	Change (%)	-0.008
All BGP entries (RIB)	3096125
RIB/FIB ratio (3096125/1044794)	2.9634
Valid entries	3096125
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)	3101566208
Total address space advertised (prefix length)	0.46965022
Percentage of IPv4 space advertised (3101566208/4294967295)	72.213966
Total address space advertised - corrected to 19 /8s	(data)
Average address span	2969
Average address span (as prefix size)	20.4647
Average prefix length	22.9389

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	540406	Specifics as % of FIB entries (540406/1044794)	51.7237
Specifics as % of address span (1114724154/3101566208)	35.9407
Specifics where AS prepended Path matches aggregate	225696	AS-P_Path-Match % (225696/540406)	41.76
AS Path matches aggregate	243456	AS-Path-Match % (243456/540406)	45.0506
AS Origin matches aggregate	416412	AS-Origin-Match % (416412/540406)	77.0554
Root Prefixes	504388
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	446146
Root Prefixes with depth 1	47073
Root Prefixes with depth 2	9084
Root Prefixes with depth 3	1589
Root Prefixes with depth 4	388
Root Prefixes with depth 5	74
Root Prefixes with depth 6	26
Root Prefixes with depth 7	7
Root Prefixes with depth 8	1

AS Numbers

The time trend of the number of unique AS numbers advertised within the BGP table. The associated metrics characterise AS's into origin only, transit only, or mixed (origin and transit), and also look at the trends of advertised address space as related to the number of ASes.

AS Reports (plots)	Data Sets(txt)	Additional Reports (plots)	Data Sets(txt)
Unique ASes	77846	ASes visible in only one AS path	45663
Origin only ASes	66457	Origin ASs announced via a single AS path	45114
Transit only ASes	588	Originating AS ATOM count	77258
Mixed ASes	10801	Originating AS ATOM compression	0.0739
Multi-Origin Prefixes	2379
ASes originating a single prefix	26939
Average FIB entries per Origin AS	13.5234	Maximum entries for an origin AS (AS7713)	3711
Average address range span for an origin AS	40145.5669	Maximum address range for an origin AS (AS749)	227861248

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	265436	Unique AS prepended Paths	282259
AS Paths used in FIB	135851	AS Paths using prepending	64037
AS paths associated with a single FIB entry	65626	AS Paths using private ASs	26
Average AS path length	5.1975	Number of Prefixes with Selected AS Prepending Paths	137455
Maximum AS Path length	15	Number of Prefixes with AS Prepending Paths	137455
Average address weighted AS path length	6.5373	Maximum prepended AS Path length	91
Average entries per AS Path	3.9361	Average entries per FIB AS Path	7.6907
AS Paths per origin AS	3.4357	FIB AS Paths per origin AS	1.7584
AS PATH ATOM compression	0.1300

Prefix Length Distributions

The time trend of the distribution of BGP Table entries by address prefix length.

Prefix Length Reports (plots)	Data Sets(txt)	Percentage Reports (plots)	Data Sets(txt)
Prefix Count	(data)	% Prefix distribution	(data)
Prefix count /8	16	% Prefix /8	0.00
Prefix count /9	14	% Prefix /9	0.00
Prefix count /10	41	% Prefix /10	0.00
Prefix count /11	94	% Prefix /11	0.01
Prefix count /12	298	% Prefix /12	0.03
Prefix count /13	582	% Prefix /13	0.06
Prefix count /14	1204	% Prefix /14	0.12
Prefix count /15	2104	% Prefix /15	0.20
Prefix count /16	13754	% Prefix /16	1.32
Prefix count /17	8388	% Prefix /17	0.80
Prefix count /18	13790	% Prefix /18	1.32
Prefix count /19	25364	% Prefix /19	2.43
Prefix count /20	46617	% Prefix /20	4.46
Prefix count /21	53663	% Prefix /21	5.14
Prefix count /22	115111	% Prefix /22	11.02
Prefix count /23	110167	% Prefix /23	10.54
Prefix count /24	652877	% Prefix /24	62.49
Prefix count /25	698	% 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	0	% Prefix /29	0.00
Prefix count /30	0	% Prefix /30	0.00
Prefix count /31	0	% Prefix /31	0.00
Prefix count /32	10	% 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	87	% Prefix /11	0.02
Prefix count /12	260	% Prefix /12	0.05
Prefix count /13	486	% Prefix /13	0.10
Prefix count /14	1025	% Prefix /14	0.20
Prefix count /15	1625	% Prefix /15	0.32
Prefix count /16	10918	% Prefix /16	2.16
Prefix count /17	4453	% Prefix /17	0.88
Prefix count /18	6981	% Prefix /18	1.38
Prefix count /19	14903	% Prefix /19	2.95
Prefix count /20	20514	% Prefix /20	4.07
Prefix count /21	22919	% Prefix /21	4.54
Prefix count /22	60182	% Prefix /22	11.93
Prefix count /23	44729	% Prefix /23	8.87
Prefix count /24	315230	% Prefix /24	62.50
Prefix count /25	10	% 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	236103448	% Addresses at AS distance 2	5.6
Addresses at AS distance 3	1286663682	% Addresses at AS distance 3	30.5
Addresses at AS distance 4	1953978528	% Addresses at AS distance 4	46.3
Addresses at AS distance 5	556602240	% Addresses at AS distance 5	13.2
Addresses at AS distance 6	161417728	% Addresses at AS distance 6	3.8
Addresses at AS distance 7	12537600	% Addresses at AS distance 7	0.3
Addresses at AS distance 8	8656896	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	301824	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	21504	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	512	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	0	% Addresses at AS distance 12	0.0
Addresses at AS distance 13	0	% Addresses at AS distance 13	0.0
Addresses at AS distance 14	1280	% Addresses at AS distance 14	0.0

Cumulative Address by AS distance	(data)	Cumulative % Address by AS distance	(data)
Addresses reachable within 0 AS hops	256	% Addresses reachable within 0 AS hops	0
Addresses reachable within 1 AS hops	5120	% Addresses reachable within 1 AS hops	0
Addresses reachable within 2 AS hops	236108568	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1522772250	% Addresses reachable within 3 AS hops	36
Addresses reachable within 4 AS hops	3476750778	% Addresses reachable within 4 AS hops	82
Addresses reachable within 5 AS hops	4033353018	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4194770746	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4207308346	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4215965242	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4216267066	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4216288570	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4216289082	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4216289082	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4216289082	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4216290362	% Addresses reachable within 14 AS hops	100

ASes by AS distance	(data)	% ASes by AS hops	(data)
ASes reachable at 0 AS hops	1	% ASes reachable at 0 AS hops	0
ASes reachable at 1 AS hops	2	% ASes reachable at 1 AS hops	0
ASes reachable at 2 AS hops	372	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	9161	% ASes reachable at 3 AS hops	11
ASes reachable at 4 AS hops	32874	% ASes reachable at 4 AS hops	42
ASes reachable at 5 AS hops	27731	% ASes reachable at 5 AS hops	35
ASes reachable at 6 AS hops	6110	% ASes reachable at 6 AS hops	7
ASes reachable at 7 AS hops	1209	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	306	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	58	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	6	% ASes reachable at 10 AS hops	0
ASes reachable at 11 AS hops	4	% ASes reachable at 11 AS hops	0
ASes reachable at 12 AS hops	4	% ASes reachable at 12 AS hops	0
ASes reachable at 13 AS hops	4	% ASes reachable at 13 AS hops	0
ASes reachable at 14 AS hops	4	% ASes reachable at 14 AS hops	0

Cumulative ASes by AS hops	(data)	Cumulative % ASes by AS hops	(data)
ASes reachable by 0 AS hops	1	Cumulative % ASes by AS hops 0	0.0
ASes reachable by 1 AS hops	3	Cumulative % ASes by AS hops 1	0.0
ASes reachable by 2 AS hops	375	Cumulative % ASes by AS hops 2	0.5
ASes reachable by 3 AS hops	9536	Cumulative % ASes by AS hops 3	12.2
ASes reachable by 4 AS hops	42410	Cumulative % ASes by AS hops 4	54.5
ASes reachable by 5 AS hops	70141	Cumulative % ASes by AS hops 5	90.1
ASes reachable by 6 AS hops	76251	Cumulative % ASes by AS hops 6	98.0
ASes reachable by 7 AS hops	77460	Cumulative % ASes by AS hops 7	99.5
ASes reachable by 8 AS hops	77766	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	77824	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	77830	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	77834	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	77838	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	77842	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	77846	Cumulative % ASes by AS hops 14	100.0

BGP Update Reports

Compares the current BGP Table with the previous table and reports on the number of changes in the FIB. These changes are further categorised into announcements, withdrawls and path changes, and further categorised by prefix length.

FIB Update Reports	Data	Announce	Data	Withdraw	Data	Path Chg	Data
Table Updates	1728	New Entries	161	Removed Entries	249	Updated Entries	1318
		Report		Report		Report
Address Span	1868289	Address Span	69888	Address Span	114177	Address Span	1684224
Average address span per update	1081	Avg Span	434	Avg Span	458	Avg Span	1277
Average prefix size updated	23.71	Average prefix size	23.76	Average prefix size	23.68	Average prefix size	23.71
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /16 total	14	Prefix /16 announcements	0	Prefix /16 withdrawals	0	Prefix /16 path updates	14
Prefix /17 total	3	Prefix /17 announcements	0	Prefix /17 withdrawals	0	Prefix /17 path updates	3
Prefix /18 total	6	Prefix /18 announcements	0	Prefix /18 withdrawals	0	Prefix /18 path updates	6
Prefix /19 total	12	Prefix /19 announcements	2	Prefix /19 withdrawals	1	Prefix /19 path updates	9
Prefix /20 total	21	Prefix /20 announcements	0	Prefix /20 withdrawals	4	Prefix /20 path updates	17
Prefix /21 total	40	Prefix /21 announcements	5	Prefix /21 withdrawals	7	Prefix /21 path updates	28
Prefix /22 total	84	Prefix /22 announcements	1	Prefix /22 withdrawals	13	Prefix /22 path updates	70
Prefix /23 total	141	Prefix /23 announcements	12	Prefix /23 withdrawals	19	Prefix /23 path updates	110
Prefix /24 total	1170	Prefix /24 announcements	141	Prefix /24 withdrawals	204	Prefix /24 path updates	825
Prefix /25 total	236	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	236
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	0	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	0.62	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.81
Prefix /17 total	0.22	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.28
Prefix /18 total	0.26	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.34
Prefix /19 total	0.29	Prefix /19 announcements	0.51	Prefix /19 withdrawals	0.17	Prefix /19 path updates	0.28
Prefix /20 total	0.27	Prefix /20 announcements	0.00	Prefix /20 withdrawals	0.36	Prefix /20 path updates	0.29
Prefix /21 total	0.45	Prefix /21 announcements	0.60	Prefix /21 withdrawals	0.55	Prefix /21 path updates	0.41
Prefix /22 total	0.44	Prefix /22 announcements	0.06	Prefix /22 withdrawals	0.47	Prefix /22 path updates	0.48
Prefix /23 total	0.77	Prefix /23 announcements	0.71	Prefix /23 withdrawals	0.72	Prefix /23 path updates	0.79
Prefix /24 total	1.08	Prefix /24 announcements	1.40	Prefix /24 withdrawals	1.31	Prefix /24 path updates	1.00
Prefix /25 total	204.43	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	268.02
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	100.00	Prefix /29 withdrawals	100.00	Prefix /29 path updates	100.00
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	60.46	Prefix /32 announcements	0.00	Prefix /32 withdrawals	419.60	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	1728.000	New Entries	161.000	Removed Entries	249.000	Updated Entries	1318.000
Address Span	1868289.000	Address Span	69888.000	Address Span	114177.000	Address Span	1684224.000
Average address span per update	1081.000	Avg Span	434.000	Avg Span	458.000	Avg Span	1277.000
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	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	14.000	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	14.000
Prefix /17 update rate	3.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	3.000
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	12.000	Prefix /19 announcements	2.000	Prefix /19 withdrawals	1.000	Prefix /19 path updates	9.000
Prefix /20 update rate	21.000	Prefix /20 announcements	0.000	Prefix /20 withdrawals	4.000	Prefix /20 path updates	17.000
Prefix /21 update rate	40.000	Prefix /21 announcements	5.000	Prefix /21 withdrawals	7.000	Prefix /21 path updates	28.000
Prefix /22 update rate	84.000	Prefix /22 announcements	1.000	Prefix /22 withdrawals	13.000	Prefix /22 path updates	70.000
Prefix /23 update rate	141.000	Prefix /23 announcements	12.000	Prefix /23 withdrawals	19.000	Prefix /23 path updates	110.000
Prefix /24 update rate	1170.000	Prefix /24 announcements	141.000	Prefix /24 withdrawals	204.000	Prefix /24 path updates	825.000
Prefix /25 update rate	236.000	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	236.000
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	0.000	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	625	Origin Paths	61	NextHop Paths	201	Transit Paths	195	Paths	151	Paths	17
Report
/16 Tot	14	/16 Org	1	/16 Nxt	1	/16 Trn	11	/16 Fst	1	/16 Prp	0
/17 Tot	3	/17 Org	0	/17 Nxt	3	/17 Trn	0	/17 Fst	0	/17 Prp	0
/18 Tot	6	/18 Org	0	/18 Nxt	5	/18 Trn	1	/18 Fst	0	/18 Prp	0
/19 Tot	9	/19 Org	0	/19 Nxt	8	/19 Trn	0	/19 Fst	1	/19 Prp	0
/20 Tot	17	/20 Org	6	/20 Nxt	6	/20 Trn	3	/20 Fst	2	/20 Prp	0
/21 Tot	28	/21 Org	1	/21 Nxt	14	/21 Trn	12	/21 Fst	1	/21 Prp	0
/22 Tot	70	/22 Org	0	/22 Nxt	29	/22 Trn	18	/22 Fst	21	/22 Prp	2
/23 Tot	110	/23 Org	0	/23 Nxt	45	/23 Trn	41	/23 Fst	21	/23 Prp	3
/24 Tot	825	/24 Org	12	/24 Nxt	368	/24 Trn	222	/24 Fst	201	/24 Prp	22
/25 Tot	236	/25 Org	58	/25 Nxt	17	/25 Trn	0	/25 Fst	161	/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	11	% AS's announcing span of /6	0.0001
AS's announcing span of /7	21	% AS's announcing span of /7	0.0003
AS's announcing span of /8	41	% AS's announcing span of /8	0.0005
AS's announcing span of /9	74	% AS's announcing span of /9	0.0010
AS's announcing span of /10	102	% AS's announcing span of /10	0.0013
AS's announcing span of /11	174	% AS's announcing span of /11	0.0023
AS's announcing span of /12	243	% AS's announcing span of /12	0.0031
AS's announcing span of /13	403	% AS's announcing span of /13	0.0052
AS's announcing span of /14	851	% AS's announcing span of /14	0.0110
AS's announcing span of /15	1625	% AS's announcing span of /15	0.0210
AS's announcing span of /16	1771	% AS's announcing span of /16	0.0229
AS's announcing span of /17	2455	% AS's announcing span of /17	0.0318
AS's announcing span of /18	3745	% AS's announcing span of /18	0.0485
AS's announcing span of /19	5165	% AS's announcing span of /19	0.0669
AS's announcing span of /20	7643	% AS's announcing span of /20	0.0990
AS's announcing span of /21	10441	% AS's announcing span of /21	0.1352
AS's announcing span of /22	12897	% AS's announcing span of /22	0.1671
AS's announcing span of /23	10108	% AS's announcing span of /23	0.1309
AS's announcing span of /24	19409	% AS's announcing span of /24	0.2514
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	129302
Average AS Connectivity Degree (258604/77846)	3.3220
Average AS Connectivity IN:OUT Degree	0.1575
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	600709	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	587579	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	397533	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	397563	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 Dec 8 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