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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Thu Jun 19 04:01:09 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)	1011241	Change in FIB Size	-1516	Change (%)	-0.150
All BGP entries (RIB)	2993279
RIB/FIB ratio (2993279/1011241)	2.9600
Valid entries	2993279
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)	3106863232
Total address space advertised (prefix length)	0.46718841
Percentage of IPv4 space advertised (3106863232/4294967295)	72.337297
Total address space advertised - corrected to 19 /8s	(data)
Average address span	3072
Average address span (as prefix size)	20.4150
Average prefix length	22.9120

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	529048	Specifics as % of FIB entries (529048/1011241)	52.3167
Specifics as % of address span (1111493723/3106863232)	35.7754
Specifics where AS prepended Path matches aggregate	226972	AS-P_Path-Match % (226972/529048)	42.90
AS Path matches aggregate	246791	AS-Path-Match % (246791/529048)	46.6481
AS Origin matches aggregate	407596	AS-Origin-Match % (407596/529048)	77.0433
Root Prefixes	482193
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	424608
Root Prefixes with depth 1	46431
Root Prefixes with depth 2	9040
Root Prefixes with depth 3	1604
Root Prefixes with depth 4	396
Root Prefixes with depth 5	81
Root Prefixes with depth 6	26
Root Prefixes with depth 7	6
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	77108	ASes visible in only one AS path	46097
Origin only ASes	65685	Origin ASs announced via a single AS path	45552
Transit only ASes	581	Originating AS ATOM count	76527
Mixed ASes	10842	Originating AS ATOM compression	0.0757
Multi-Origin Prefixes	1881
ASes originating a single prefix	26742
Average FIB entries per Origin AS	13.2142	Maximum entries for an origin AS (AS7713)	3713
Average address range span for an origin AS	40598.2625	Maximum address range for an origin AS (AS749)	227889152

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	251601	Unique AS prepended Paths	271203
AS Paths used in FIB	128668	AS Paths using prepending	70659
AS paths associated with a single FIB entry	61282	AS Paths using private ASs	32
Average AS path length	5.2554	Number of Prefixes with Selected AS Prepending Paths	151548
Maximum AS Path length	16	Number of Prefixes with AS Prepending Paths	151548
Average address weighted AS path length	6.6175	Maximum prepended AS Path length	91
Average entries per AS Path	4.0192	Average entries per FIB AS Path	7.8593
AS Paths per origin AS	3.2877	FIB AS Paths per origin AS	1.6813
AS PATH ATOM compression	0.1272

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	92	% Prefix /11	0.01
Prefix count /12	300	% Prefix /12	0.03
Prefix count /13	584	% Prefix /13	0.06
Prefix count /14	1210	% Prefix /14	0.12
Prefix count /15	2161	% Prefix /15	0.21
Prefix count /16	13903	% Prefix /16	1.37
Prefix count /17	8388	% Prefix /17	0.83
Prefix count /18	13807	% Prefix /18	1.37
Prefix count /19	25052	% Prefix /19	2.48
Prefix count /20	45896	% Prefix /20	4.54
Prefix count /21	53245	% Prefix /21	5.27
Prefix count /22	114270	% Prefix /22	11.30
Prefix count /23	107563	% Prefix /23	10.64
Prefix count /24	623873	% Prefix /24	61.69
Prefix count /25	795	% 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	27	% 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	85	% Prefix /11	0.02
Prefix count /12	265	% Prefix /12	0.05
Prefix count /13	489	% Prefix /13	0.10
Prefix count /14	1030	% Prefix /14	0.21
Prefix count /15	1654	% Prefix /15	0.34
Prefix count /16	11046	% Prefix /16	2.29
Prefix count /17	4445	% Prefix /17	0.92
Prefix count /18	6958	% Prefix /18	1.44
Prefix count /19	14778	% Prefix /19	3.06
Prefix count /20	20123	% Prefix /20	4.17
Prefix count /21	22376	% Prefix /21	4.64
Prefix count /22	59448	% Prefix /22	12.33
Prefix count /23	43016	% Prefix /23	8.92
Prefix count /24	296403	% Prefix /24	61.47
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	241095593	% Addresses at AS distance 2	5.7
Addresses at AS distance 3	1139451920	% Addresses at AS distance 3	27.0
Addresses at AS distance 4	1990572834	% Addresses at AS distance 4	47.2
Addresses at AS distance 5	643104256	% Addresses at AS distance 5	15.2
Addresses at AS distance 6	175511296	% Addresses at AS distance 6	4.2
Addresses at AS distance 7	19565056	% Addresses at AS distance 7	0.5
Addresses at AS distance 8	8539136	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	424192	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	84480	% 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	0	% Addresses at AS distance 14	0.0
Addresses at AS distance 15	1280	% 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	241100713	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1380552633	% Addresses reachable within 3 AS hops	32
Addresses reachable within 4 AS hops	3371125467	% Addresses reachable within 4 AS hops	79
Addresses reachable within 5 AS hops	4014229723	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4189741019	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4209306075	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4217845211	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4218269403	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4218353883	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4218355675	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4218355675	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4218355675	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4218355675	% Addresses reachable within 14 AS hops	99
Addresses reachable within 15 AS hops	4218356955	% 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	363	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	9562	% ASes reachable at 3 AS hops	12
ASes reachable at 4 AS hops	28854	% ASes reachable at 4 AS hops	37
ASes reachable at 5 AS hops	28912	% ASes reachable at 5 AS hops	37
ASes reachable at 6 AS hops	7429	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1557	% ASes reachable at 7 AS hops	2
ASes reachable at 8 AS hops	341	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	56	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	14	% 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	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	4	% 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	366	Cumulative % ASes by AS hops 2	0.5
ASes reachable by 3 AS hops	9928	Cumulative % ASes by AS hops 3	12.9
ASes reachable by 4 AS hops	38782	Cumulative % ASes by AS hops 4	50.3
ASes reachable by 5 AS hops	67694	Cumulative % ASes by AS hops 5	87.8
ASes reachable by 6 AS hops	75123	Cumulative % ASes by AS hops 6	97.4
ASes reachable by 7 AS hops	76680	Cumulative % ASes by AS hops 7	99.4
ASes reachable by 8 AS hops	77021	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	77077	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	77091	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	77092	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	77096	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	77100	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	77104	Cumulative % ASes by AS hops 14	100.0
ASes reachable by 15 AS hops	77108	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	4631	New Entries	214	Removed Entries	1837	Updated Entries	2580
		Report		Report		Report
Address Span	3813762	Address Span	385793	Address Span	1057536	Address Span	2370433
Average address span per update	823	Avg Span	1802	Avg Span	575	Avg Span	918
Average prefix size updated	23.61	Average prefix size	23.50	Average prefix size	23.74	Average prefix size	23.53
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /16 total	13	Prefix /16 announcements	4	Prefix /16 withdrawals	4	Prefix /16 path updates	5
Prefix /17 total	15	Prefix /17 announcements	0	Prefix /17 withdrawals	2	Prefix /17 path updates	13
Prefix /18 total	17	Prefix /18 announcements	2	Prefix /18 withdrawals	3	Prefix /18 path updates	12
Prefix /19 total	47	Prefix /19 announcements	1	Prefix /19 withdrawals	6	Prefix /19 path updates	40
Prefix /20 total	37	Prefix /20 announcements	1	Prefix /20 withdrawals	10	Prefix /20 path updates	26
Prefix /21 total	97	Prefix /21 announcements	7	Prefix /21 withdrawals	20	Prefix /21 path updates	70
Prefix /22 total	324	Prefix /22 announcements	13	Prefix /22 withdrawals	63	Prefix /22 path updates	248
Prefix /23 total	449	Prefix /23 announcements	14	Prefix /23 withdrawals	166	Prefix /23 path updates	269
Prefix /24 total	3361	Prefix /24 announcements	171	Prefix /24 withdrawals	1563	Prefix /24 path updates	1627
Prefix /25 total	269	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	269
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	2	Prefix /32 announcements	1	Prefix /32 withdrawals	0	Prefix /32 path updates	1
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	0.20	Prefix /16 announcements	1.36	Prefix /16 withdrawals	0.16	Prefix /16 path updates	0.14
Prefix /17 total	0.39	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.13	Prefix /17 path updates	0.61
Prefix /18 total	0.27	Prefix /18 announcements	0.68	Prefix /18 withdrawals	0.12	Prefix /18 path updates	0.34
Prefix /19 total	0.41	Prefix /19 announcements	0.19	Prefix /19 withdrawals	0.13	Prefix /19 path updates	0.63
Prefix /20 total	0.18	Prefix /20 announcements	0.10	Prefix /20 withdrawals	0.12	Prefix /20 path updates	0.22
Prefix /21 total	0.40	Prefix /21 announcements	0.62	Prefix /21 withdrawals	0.21	Prefix /21 path updates	0.52
Prefix /22 total	0.62	Prefix /22 announcements	0.54	Prefix /22 withdrawals	0.30	Prefix /22 path updates	0.85
Prefix /23 total	0.91	Prefix /23 announcements	0.62	Prefix /23 withdrawals	0.85	Prefix /23 path updates	0.98
Prefix /24 total	1.18	Prefix /24 announcements	1.30	Prefix /24 withdrawals	1.38	Prefix /24 path updates	1.02
Prefix /25 total	73.89	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	132.62
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	16.18	Prefix /32 announcements	175.02	Prefix /32 withdrawals	0.00	Prefix /32 path updates	14.52

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	4631.000	New Entries	214.000	Removed Entries	1837.000	Updated Entries	2580.000
Address Span	3813762.000	Address Span	385793.000	Address Span	1057536.000	Address Span	2370433.000
Average address span per update	823.000	Avg Span	1802.000	Avg Span	575.000	Avg Span	918.000
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	13.000	Prefix /16 announcements	4.000	Prefix /16 withdrawals	4.000	Prefix /16 path updates	5.000
Prefix /17 update rate	15.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	2.000	Prefix /17 path updates	13.000
Prefix /18 update rate	17.000	Prefix /18 announcements	2.000	Prefix /18 withdrawals	3.000	Prefix /18 path updates	12.000
Prefix /19 update rate	47.000	Prefix /19 announcements	1.000	Prefix /19 withdrawals	6.000	Prefix /19 path updates	40.000
Prefix /20 update rate	37.000	Prefix /20 announcements	1.000	Prefix /20 withdrawals	10.000	Prefix /20 path updates	26.000
Prefix /21 update rate	97.000	Prefix /21 announcements	7.000	Prefix /21 withdrawals	20.000	Prefix /21 path updates	70.000
Prefix /22 update rate	324.000	Prefix /22 announcements	13.000	Prefix /22 withdrawals	63.000	Prefix /22 path updates	248.000
Prefix /23 update rate	449.000	Prefix /23 announcements	14.000	Prefix /23 withdrawals	166.000	Prefix /23 path updates	269.000
Prefix /24 update rate	3361.000	Prefix /24 announcements	171.000	Prefix /24 withdrawals	1563.000	Prefix /24 path updates	1627.000
Prefix /25 update rate	269.000	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	269.000
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	2.000	Prefix /32 announcements	1.000	Prefix /32 withdrawals	0.000	Prefix /32 path updates	1.000

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	931	Origin Paths	58	NextHop Paths	280	Transit Paths	306	Paths	237	Paths	50
Report
/16 Tot	5	/16 Org	0	/16 Nxt	3	/16 Trn	0	/16 Fst	1	/16 Prp	1
/17 Tot	13	/17 Org	0	/17 Nxt	12	/17 Trn	1	/17 Fst	0	/17 Prp	0
/18 Tot	12	/18 Org	0	/18 Nxt	9	/18 Trn	0	/18 Fst	2	/18 Prp	1
/19 Tot	40	/19 Org	0	/19 Nxt	9	/19 Trn	1	/19 Fst	29	/19 Prp	1
/20 Tot	26	/20 Org	0	/20 Nxt	16	/20 Trn	5	/20 Fst	5	/20 Prp	0
/21 Tot	70	/21 Org	0	/21 Nxt	31	/21 Trn	14	/21 Fst	19	/21 Prp	6
/22 Tot	248	/22 Org	1	/22 Nxt	135	/22 Trn	48	/22 Fst	54	/22 Prp	10
/23 Tot	269	/23 Org	0	/23 Nxt	140	/23 Trn	63	/23 Fst	62	/23 Prp	4
/24 Tot	1627	/24 Org	3	/24 Nxt	638	/24 Trn	411	/24 Fst	483	/24 Prp	92
/25 Tot	269	/25 Org	59	/25 Nxt	17	/25 Trn	0	/25 Fst	193	/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	1	/32 Org	0	/32 Nxt	0	/32 Trn	0	/32 Fst	1	/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	44	% 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	105	% 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	248	% AS's announcing span of /12	0.0032
AS's announcing span of /13	396	% AS's announcing span of /13	0.0052
AS's announcing span of /14	848	% AS's announcing span of /14	0.0111
AS's announcing span of /15	1650	% AS's announcing span of /15	0.0216
AS's announcing span of /16	1775	% AS's announcing span of /16	0.0232
AS's announcing span of /17	2422	% AS's announcing span of /17	0.0317
AS's announcing span of /18	3765	% AS's announcing span of /18	0.0492
AS's announcing span of /19	5118	% AS's announcing span of /19	0.0669
AS's announcing span of /20	7588	% AS's announcing span of /20	0.0992
AS's announcing span of /21	10451	% AS's announcing span of /21	0.1367
AS's announcing span of /22	12739	% AS's announcing span of /22	0.1666
AS's announcing span of /23	9930	% AS's announcing span of /23	0.1299
AS's announcing span of /24	19086	% AS's announcing span of /24	0.2496
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.

h h h

AS Connectivity Report	Data
AS Adjacency Count	129097
Average AS Connectivity Degree (258194/77108)	3.3485
Average AS Connectivity IN:OUT Degree	0.1568
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	573420	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	556976	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	384094	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	384119	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 Jun 19 04:01:09 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