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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Tue Apr 21 16:01:10 2026 (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)	1049228	Change in FIB Size	165	Change (%)	0.016
All BGP entries (RIB)	3128862
RIB/FIB ratio (3128862/1049228)	2.9821
Valid entries	3128862
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)	3105483776
Total address space advertised (prefix length)	0.46782912
Percentage of IPv4 space advertised (3105483776/4294967295)	72.305179
Total address space advertised - corrected to 19 /8s	(data)
Average address span	2960
Average address span (as prefix size)	20.4691
Average prefix length	22.9471

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	534325	Specifics as % of FIB entries (534325/1049228)	50.9255
Specifics as % of address span (1096512906/3105483776)	35.3089
Specifics where AS prepended Path matches aggregate	231428	AS-P_Path-Match % (231428/534325)	43.31
AS Path matches aggregate	248929	AS-Path-Match % (248929/534325)	46.5876
AS Origin matches aggregate	407376	AS-Origin-Match % (407376/534325)	76.2412
Root Prefixes	514903
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	458247
Root Prefixes with depth 1	46315
Root Prefixes with depth 2	8501
Root Prefixes with depth 3	1412
Root Prefixes with depth 4	325
Root Prefixes with depth 5	72
Root Prefixes with depth 6	25
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	78521	ASes visible in only one AS path	46834
Origin only ASes	67092	Origin ASs announced via a single AS path	46263
Transit only ASes	605	Originating AS ATOM count	77916
Mixed ASes	10824	Originating AS ATOM compression	0.0743
Multi-Origin Prefixes	1643
ASes originating a single prefix	27630
Average FIB entries per Origin AS	13.4661	Maximum entries for an origin AS (AS7713)	3686
Average address range span for an origin AS	39856.8173	Maximum address range for an origin AS (AS749)	227731200

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	278537	Unique AS prepended Paths	296691
AS Paths used in FIB	133936	AS Paths using prepending	67277
AS paths associated with a single FIB entry	64938	AS Paths using private ASs	15
Average AS path length	5.2987	Number of Prefixes with Selected AS Prepending Paths	141265
Maximum AS Path length	16	Number of Prefixes with AS Prepending Paths	141265
Average address weighted AS path length	6.5498	Maximum prepended AS Path length	70
Average entries per AS Path	3.7669	Average entries per FIB AS Path	7.8338
AS Paths per origin AS	3.5748	FIB AS Paths per origin AS	1.7190
AS PATH ATOM compression	0.1277

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	39	% Prefix /10	0.00
Prefix count /11	95	% Prefix /11	0.01
Prefix count /12	297	% Prefix /12	0.03
Prefix count /13	585	% Prefix /13	0.06
Prefix count /14	1193	% Prefix /14	0.11
Prefix count /15	2113	% Prefix /15	0.20
Prefix count /16	13650	% Prefix /16	1.30
Prefix count /17	8418	% Prefix /17	0.80
Prefix count /18	13469	% Prefix /18	1.28
Prefix count /19	25800	% Prefix /19	2.46
Prefix count /20	47065	% Prefix /20	4.49
Prefix count /21	53075	% Prefix /21	5.06
Prefix count /22	114312	% Prefix /22	10.89
Prefix count /23	108285	% Prefix /23	10.32
Prefix count /24	660103	% Prefix /24	62.91
Prefix count /25	689	% Prefix /25	0.07
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	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	39	% Prefix /10	0.01
Prefix count /11	90	% Prefix /11	0.02
Prefix count /12	263	% Prefix /12	0.05
Prefix count /13	488	% Prefix /13	0.09
Prefix count /14	1016	% Prefix /14	0.20
Prefix count /15	1622	% Prefix /15	0.32
Prefix count /16	10835	% Prefix /16	2.10
Prefix count /17	4519	% Prefix /17	0.88
Prefix count /18	7151	% Prefix /18	1.39
Prefix count /19	14934	% Prefix /19	2.90
Prefix count /20	20915	% Prefix /20	4.06
Prefix count /21	22919	% Prefix /21	4.45
Prefix count /22	60601	% Prefix /22	11.77
Prefix count /23	45909	% Prefix /23	8.92
Prefix count /24	323571	% Prefix /24	62.84
Prefix count /25	6	% 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	220006410	% Addresses at AS distance 2	5.2
Addresses at AS distance 3	1224092160	% Addresses at AS distance 3	29.1
Addresses at AS distance 4	1982437376	% Addresses at AS distance 4	47.2
Addresses at AS distance 5	587013248	% Addresses at AS distance 5	14.0
Addresses at AS distance 6	166545792	% Addresses at AS distance 6	4.0
Addresses at AS distance 7	13698176	% Addresses at AS distance 7	0.3
Addresses at AS distance 8	7860224	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	310272	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	24832	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	1792	% 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
Addresses at AS distance 15	0	% Addresses at AS distance 15	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	220011530	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1444103690	% Addresses reachable within 3 AS hops	34
Addresses reachable within 4 AS hops	3426541066	% Addresses reachable within 4 AS hops	81
Addresses reachable within 5 AS hops	4013554314	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4180100106	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4193798282	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4201658506	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4201968778	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4201993610	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4201995402	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4201995402	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4201995402	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4201996682	% Addresses reachable within 14 AS hops	100
Addresses reachable within 15 AS hops	4201996682	% Addresses reachable within 15 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	303	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	6505	% ASes reachable at 3 AS hops	8
ASes reachable at 4 AS hops	31325	% ASes reachable at 4 AS hops	39
ASes reachable at 5 AS hops	31123	% ASes reachable at 5 AS hops	39
ASes reachable at 6 AS hops	7489	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1395	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	300	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	51	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	9	% ASes reachable at 10 AS hops	0
ASes reachable at 11 AS hops	6	% 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
ASes reachable at 15 AS hops	0	% ASes reachable at 15 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	306	Cumulative % ASes by AS hops 2	0.4
ASes reachable by 3 AS hops	6811	Cumulative % ASes by AS hops 3	8.7
ASes reachable by 4 AS hops	38136	Cumulative % ASes by AS hops 4	48.6
ASes reachable by 5 AS hops	69259	Cumulative % ASes by AS hops 5	88.2
ASes reachable by 6 AS hops	76748	Cumulative % ASes by AS hops 6	97.7
ASes reachable by 7 AS hops	78143	Cumulative % ASes by AS hops 7	99.5
ASes reachable by 8 AS hops	78443	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	78494	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	78503	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	78509	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	78513	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	78517	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	78521	Cumulative % ASes by AS hops 14	100.0
ASes reachable by 15 AS hops	78521	Cumulative % ASes by AS hops 15	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	2580	New Entries	268	Removed Entries	91	Updated Entries	2221
		Report		Report		Report
Address Span	3140736	Address Span	431872	Address Span	63232	Address Span	2645632
Average address span per update	1217	Avg Span	1611	Avg Span	694	Avg Span	1191
Average prefix size updated	23.43	Average prefix size	23.18	Average prefix size	23.44	Average prefix size	23.46
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	16	Prefix /16 announcements	3	Prefix /16 withdrawals	0	Prefix /16 path updates	13
Prefix /17 total	3	Prefix /17 announcements	1	Prefix /17 withdrawals	0	Prefix /17 path updates	2
Prefix /18 total	12	Prefix /18 announcements	1	Prefix /18 withdrawals	0	Prefix /18 path updates	11
Prefix /19 total	28	Prefix /19 announcements	2	Prefix /19 withdrawals	0	Prefix /19 path updates	26
Prefix /20 total	106	Prefix /20 announcements	13	Prefix /20 withdrawals	9	Prefix /20 path updates	84
Prefix /21 total	139	Prefix /21 announcements	14	Prefix /21 withdrawals	1	Prefix /21 path updates	124
Prefix /22 total	165	Prefix /22 announcements	30	Prefix /22 withdrawals	2	Prefix /22 path updates	133
Prefix /23 total	150	Prefix /23 announcements	19	Prefix /23 withdrawals	8	Prefix /23 path updates	123
Prefix /24 total	1729	Prefix /24 announcements	185	Prefix /24 withdrawals	71	Prefix /24 path updates	1473
Prefix /25 total	231	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	231
Prefix /26 total	0	Prefix /26 announcements	0	Prefix /26 withdrawals	0	Prefix /26 path updates	0
Prefix /27 total	0	Prefix /27 announcements	0	Prefix /27 withdrawals	0	Prefix /27 path updates	0
Prefix /28 total	0	Prefix /28 announcements	0	Prefix /28 withdrawals	0	Prefix /28 path updates	0
Prefix /29 total	0	Prefix /29 announcements	0	Prefix /29 withdrawals	0	Prefix /29 path updates	0
Prefix /30 total	0	Prefix /30 announcements	0	Prefix /30 withdrawals	0	Prefix /30 path updates	0
Prefix /31 total	0	Prefix /31 announcements	0	Prefix /31 withdrawals	0	Prefix /31 path updates	0
Prefix /32 total	0	Prefix /32 announcements	0	Prefix /32 withdrawals	0	Prefix /32 path updates	0
Update rate, normalized by prefix count		Announce		Withdraw		Path Chg
Prefix /8 total	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	0.19	Prefix /15 announcements	0.00	Prefix /15 withdrawals	0.00	Prefix /15 path updates	0.22
Prefix /16 total	0.48	Prefix /16 announcements	0.86	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.45
Prefix /17 total	0.14	Prefix /17 announcements	0.47	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.11
Prefix /18 total	0.36	Prefix /18 announcements	0.29	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.39
Prefix /19 total	0.44	Prefix /19 announcements	0.30	Prefix /19 withdrawals	0.00	Prefix /19 path updates	0.48
Prefix /20 total	0.92	Prefix /20 announcements	1.08	Prefix /20 withdrawals	2.20	Prefix /20 path updates	0.84
Prefix /21 total	1.07	Prefix /21 announcements	1.03	Prefix /21 withdrawals	0.22	Prefix /21 path updates	1.10
Prefix /22 total	0.59	Prefix /22 announcements	1.03	Prefix /22 withdrawals	0.20	Prefix /22 path updates	0.55
Prefix /23 total	0.56	Prefix /23 announcements	0.69	Prefix /23 withdrawals	0.85	Prefix /23 path updates	0.54
Prefix /24 total	1.07	Prefix /24 announcements	1.10	Prefix /24 withdrawals	1.24	Prefix /24 path updates	1.05
Prefix /25 total	136.35	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	158.39
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	100.00	Prefix /27 withdrawals	100.00	Prefix /27 path updates	100.00
Prefix /28 total	0.00	Prefix /28 announcements	100.00	Prefix /28 withdrawals	100.00	Prefix /28 path updates	100.00
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	0.00	Prefix /32 announcements	0.00	Prefix /32 withdrawals	0.00	Prefix /32 path updates	0.00

FIB Update Rate Reports Updates per hour (Measurement Period 0 hrs 59 mins)	Data	Announce Rate	Data	Withdraw Rate	Data	Path Chg Rate	Data
Table Updates	2580.717	New Entries	268.074	Removed Entries	91.025	Updated Entries	2221.617
Address Span	3141608.750	Address Span	431992.000	Address Span	63249.570	Address Span	2646367.000
Average address span per update	1217.338	Avg Span	1611.448	Avg Span	694.193	Avg Span	1191.331
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	16.004	Prefix /16 announcements	3.001	Prefix /16 withdrawals	0.000	Prefix /16 path updates	13.004
Prefix /17 update rate	3.001	Prefix /17 announcements	1.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	2.001
Prefix /18 update rate	12.003	Prefix /18 announcements	1.000	Prefix /18 withdrawals	0.000	Prefix /18 path updates	11.003
Prefix /19 update rate	28.008	Prefix /19 announcements	2.001	Prefix /19 withdrawals	0.000	Prefix /19 path updates	26.007
Prefix /20 update rate	106.029	Prefix /20 announcements	13.004	Prefix /20 withdrawals	9.003	Prefix /20 path updates	84.023
Prefix /21 update rate	139.039	Prefix /21 announcements	14.004	Prefix /21 withdrawals	1.000	Prefix /21 path updates	124.034
Prefix /22 update rate	165.046	Prefix /22 announcements	30.008	Prefix /22 withdrawals	2.001	Prefix /22 path updates	133.037
Prefix /23 update rate	150.042	Prefix /23 announcements	19.005	Prefix /23 withdrawals	8.002	Prefix /23 path updates	123.034
Prefix /24 update rate	1729.480	Prefix /24 announcements	185.051	Prefix /24 withdrawals	71.020	Prefix /24 path updates	1473.409
Prefix /25 update rate	231.064	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	231.064
Prefix /26 update rate	0.000	Prefix /26 announcements	0.000	Prefix /26 withdrawals	0.000	Prefix /26 path updates	0.000
Prefix /27 update rate	0.000	Prefix /27 announcements	0.000	Prefix /27 withdrawals	0.000	Prefix /27 path updates	0.000
Prefix /28 update rate	0.000	Prefix /28 announcements	0.000	Prefix /28 withdrawals	0.000	Prefix /28 path updates	0.000
Prefix /29 update rate	0.000	Prefix /29 announcements	0.000	Prefix /29 withdrawals	0.000	Prefix /29 path updates	0.000
Prefix /30 update rate	0.000	Prefix /30 announcements	0.000	Prefix /30 withdrawals	0.000	Prefix /30 path updates	0.000
Prefix /31 update rate	0.000	Prefix /31 announcements	0.000	Prefix /31 withdrawals	0.000	Prefix /31 path updates	0.000
Prefix /32 update rate	0.000	Prefix /32 announcements	0.000	Prefix /32 withdrawals	0.000	Prefix /32 path updates	0.000

Path Updates - Breakdown by Update Type

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

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

Total	Data	Origin	Data	Origin Next Hop	Data	Transit	Data	First Hop	Data	Prepend	Data
Total Path Changes	684	Origin Paths	69	NextHop Paths	224	Transit Paths	167	Paths	198	Paths	26
Report
/15 Tot	1	/15 Org	0	/15 Nxt	1	/15 Trn	0	/15 Fst	0	/15 Prp	0
/16 Tot	13	/16 Org	0	/16 Nxt	3	/16 Trn	1	/16 Fst	0	/16 Prp	9
/17 Tot	2	/17 Org	0	/17 Nxt	1	/17 Trn	0	/17 Fst	0	/17 Prp	1
/18 Tot	11	/18 Org	1	/18 Nxt	5	/18 Trn	5	/18 Fst	0	/18 Prp	0
/19 Tot	26	/19 Org	0	/19 Nxt	18	/19 Trn	3	/19 Fst	5	/19 Prp	0
/20 Tot	84	/20 Org	1	/20 Nxt	45	/20 Trn	31	/20 Fst	6	/20 Prp	1
/21 Tot	124	/21 Org	0	/21 Nxt	24	/21 Trn	43	/21 Fst	39	/21 Prp	18
/22 Tot	133	/22 Org	1	/22 Nxt	60	/22 Trn	37	/22 Fst	23	/22 Prp	12
/23 Tot	123	/23 Org	0	/23 Nxt	63	/23 Trn	40	/23 Fst	15	/23 Prp	5
/24 Tot	1473	/24 Org	12	/24 Nxt	666	/24 Trn	355	/24 Fst	262	/24 Prp	178
/25 Tot	231	/25 Org	58	/25 Nxt	9	/25 Trn	0	/25 Fst	164	/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	20	% AS's announcing span of /7	0.0003
AS's announcing span of /8	40	% AS's announcing span of /8	0.0005
AS's announcing span of /9	73	% AS's announcing span of /9	0.0009
AS's announcing span of /10	104	% AS's announcing span of /10	0.0013
AS's announcing span of /11	173	% AS's announcing span of /11	0.0022
AS's announcing span of /12	238	% AS's announcing span of /12	0.0031
AS's announcing span of /13	394	% AS's announcing span of /13	0.0051
AS's announcing span of /14	851	% AS's announcing span of /14	0.0109
AS's announcing span of /15	1622	% AS's announcing span of /15	0.0208
AS's announcing span of /16	1727	% AS's announcing span of /16	0.0222
AS's announcing span of /17	2442	% AS's announcing span of /17	0.0314
AS's announcing span of /18	3724	% AS's announcing span of /18	0.0478
AS's announcing span of /19	5137	% AS's announcing span of /19	0.0660
AS's announcing span of /20	7533	% AS's announcing span of /20	0.0967
AS's announcing span of /21	10420	% AS's announcing span of /21	0.1338
AS's announcing span of /22	13170	% AS's announcing span of /22	0.1691
AS's announcing span of /23	10348	% AS's announcing span of /23	0.1329
AS's announcing span of /24	19814	% AS's announcing span of /24	0.2545
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.

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AS Connectivity Report	Data
AS Adjacency Count	128662
Average AS Connectivity Degree (257324/78521)	3.2771
Average AS Connectivity IN:OUT Degree	0.1522
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	598674	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	585726	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	403328	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	403365	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 Tue Apr 21 16:01:10 2026 (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