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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Mon Sep 15 08:01:09 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)	1027072	Change in FIB Size	-95	Change (%)	-0.009
All BGP entries (RIB)	3042419
RIB/FIB ratio (3042419/1027072)	2.9622
Valid entries	3042419
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)	3108801664
Total address space advertised (prefix length)	0.46628857
Percentage of IPv4 space advertised (3108801664/4294967295)	72.382429
Total address space advertised - corrected to 19 /8s	(data)
Average address span	3027
Average address span (as prefix size)	20.4368
Average prefix length	22.9264

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	533186	Specifics as % of FIB entries (533186/1027072)	51.9132
Specifics as % of address span (1104310984/3108801664)	35.5221
Specifics where AS prepended Path matches aggregate	238109	AS-P_Path-Match % (238109/533186)	44.66
AS Path matches aggregate	257650	AS-Path-Match % (257650/533186)	48.3227
AS Origin matches aggregate	410867	AS-Origin-Match % (410867/533186)	77.0589
Root Prefixes	493886
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	436013
Root Prefixes with depth 1	46731
Root Prefixes with depth 2	9047
Root Prefixes with depth 3	1599
Root Prefixes with depth 4	389
Root Prefixes with depth 5	77
Root Prefixes with depth 6	21
Root Prefixes with depth 7	8
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	77557	ASes visible in only one AS path	46644
Origin only ASes	66231	Origin ASs announced via a single AS path	46100
Transit only ASes	571	Originating AS ATOM count	76986
Mixed ASes	10755	Originating AS ATOM compression	0.0750
Multi-Origin Prefixes	2228
ASes originating a single prefix	26909
Average FIB entries per Origin AS	13.3410	Maximum entries for an origin AS (AS7713)	3690
Average address range span for an origin AS	40381.3897	Maximum address range for an origin AS (AS749)	227886336

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	260857	Unique AS prepended Paths	277763
AS Paths used in FIB	129359	AS Paths using prepending	62225
AS paths associated with a single FIB entry	61543	AS Paths using private ASs	28
Average AS path length	5.1830	Number of Prefixes with Selected AS Prepending Paths	133923
Maximum AS Path length	16	Number of Prefixes with AS Prepending Paths	133923
Average address weighted AS path length	6.4835	Maximum prepended AS Path length	91
Average entries per AS Path	3.9373	Average entries per FIB AS Path	7.9397
AS Paths per origin AS	3.3884	FIB AS Paths per origin AS	1.6803
AS PATH ATOM compression	0.1259

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	298	% Prefix /12	0.03
Prefix count /13	580	% Prefix /13	0.06
Prefix count /14	1210	% Prefix /14	0.12
Prefix count /15	2157	% Prefix /15	0.21
Prefix count /16	13830	% Prefix /16	1.35
Prefix count /17	8355	% Prefix /17	0.81
Prefix count /18	13729	% Prefix /18	1.34
Prefix count /19	25102	% Prefix /19	2.44
Prefix count /20	46207	% Prefix /20	4.50
Prefix count /21	53518	% Prefix /21	5.21
Prefix count /22	114541	% Prefix /22	11.15
Prefix count /23	108442	% Prefix /23	10.56
Prefix count /24	638124	% Prefix /24	62.13
Prefix count /25	790	% 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	0	% Prefix /29	0.00
Prefix count /30	0	% Prefix /30	0.00
Prefix count /31	0	% Prefix /31	0.00
Prefix count /32	24	% 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	263	% Prefix /12	0.05
Prefix count /13	486	% Prefix /13	0.10
Prefix count /14	1030	% Prefix /14	0.21
Prefix count /15	1654	% Prefix /15	0.33
Prefix count /16	11036	% Prefix /16	2.23
Prefix count /17	4453	% Prefix /17	0.90
Prefix count /18	6953	% Prefix /18	1.41
Prefix count /19	14837	% Prefix /19	3.00
Prefix count /20	20459	% Prefix /20	4.14
Prefix count /21	22793	% Prefix /21	4.62
Prefix count /22	59926	% Prefix /22	12.13
Prefix count /23	43853	% Prefix /23	8.88
Prefix count /24	305981	% Prefix /24	61.95
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	237087256	% Addresses at AS distance 2	5.6
Addresses at AS distance 3	1324952710	% Addresses at AS distance 3	31.4
Addresses at AS distance 4	1957771690	% Addresses at AS distance 4	46.5
Addresses at AS distance 5	529298816	% Addresses at AS distance 5	12.6
Addresses at AS distance 6	141087104	% Addresses at AS distance 6	3.3
Addresses at AS distance 7	14292480	% Addresses at AS distance 7	0.3
Addresses at AS distance 8	7943936	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	661248	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	9728	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	1024	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	256	% 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	237092376	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1562045086	% Addresses reachable within 3 AS hops	37
Addresses reachable within 4 AS hops	3519816776	% Addresses reachable within 4 AS hops	83
Addresses reachable within 5 AS hops	4049115592	% Addresses reachable within 5 AS hops	96
Addresses reachable within 6 AS hops	4190202696	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4204495176	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4212439112	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4213100360	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4213110088	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4213111112	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4213111368	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4213111368	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4213111368	% Addresses reachable within 14 AS hops	99
Addresses reachable within 15 AS hops	4213112648	% 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	375	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	9709	% ASes reachable at 3 AS hops	12
ASes reachable at 4 AS hops	33084	% ASes reachable at 4 AS hops	42
ASes reachable at 5 AS hops	26912	% ASes reachable at 5 AS hops	34
ASes reachable at 6 AS hops	5954	% ASes reachable at 6 AS hops	7
ASes reachable at 7 AS hops	1153	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	290	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	55	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	5	% 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	378	Cumulative % ASes by AS hops 2	0.5
ASes reachable by 3 AS hops	10087	Cumulative % ASes by AS hops 3	13.0
ASes reachable by 4 AS hops	43171	Cumulative % ASes by AS hops 4	55.7
ASes reachable by 5 AS hops	70083	Cumulative % ASes by AS hops 5	90.4
ASes reachable by 6 AS hops	76037	Cumulative % ASes by AS hops 6	98.0
ASes reachable by 7 AS hops	77190	Cumulative % ASes by AS hops 7	99.5
ASes reachable by 8 AS hops	77480	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	77535	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	77540	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	77541	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	77545	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	77549	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	77553	Cumulative % ASes by AS hops 14	100.0
ASes reachable by 15 AS hops	77557	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	2784	New Entries	178	Removed Entries	280	Updated Entries	2326
		Report		Report		Report
Address Span	3065603	Address Span	96770	Address Span	419584	Address Span	2549249
Average address span per update	1101	Avg Span	543	Avg Span	1498	Avg Span	1095
Average prefix size updated	23.25	Average prefix size	23.62	Average prefix size	23.46	Average prefix size	23.19
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /16 total	7	Prefix /16 announcements	0	Prefix /16 withdrawals	3	Prefix /16 path updates	4
Prefix /17 total	2	Prefix /17 announcements	0	Prefix /17 withdrawals	1	Prefix /17 path updates	1
Prefix /18 total	11	Prefix /18 announcements	0	Prefix /18 withdrawals	4	Prefix /18 path updates	7
Prefix /19 total	100	Prefix /19 announcements	1	Prefix /19 withdrawals	1	Prefix /19 path updates	98
Prefix /20 total	52	Prefix /20 announcements	6	Prefix /20 withdrawals	6	Prefix /20 path updates	40
Prefix /21 total	212	Prefix /21 announcements	4	Prefix /21 withdrawals	3	Prefix /21 path updates	205
Prefix /22 total	321	Prefix /22 announcements	10	Prefix /22 withdrawals	16	Prefix /22 path updates	295
Prefix /23 total	269	Prefix /23 announcements	23	Prefix /23 withdrawals	25	Prefix /23 path updates	221
Prefix /24 total	1539	Prefix /24 announcements	132	Prefix /24 withdrawals	221	Prefix /24 path updates	1186
Prefix /25 total	268	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	268
Prefix /26 total	0	Prefix /26 announcements	0	Prefix /26 withdrawals	0	Prefix /26 path updates	0
Prefix /27 total	0	Prefix /27 announcements	0	Prefix /27 withdrawals	0	Prefix /27 path updates	0
Prefix /28 total	0	Prefix /28 announcements	0	Prefix /28 withdrawals	0	Prefix /28 path updates	0
Prefix /29 total	0	Prefix /29 announcements	0	Prefix /29 withdrawals	0	Prefix /29 path updates	0
Prefix /30 total	0	Prefix /30 announcements	0	Prefix /30 withdrawals	0	Prefix /30 path updates	0
Prefix /31 total	0	Prefix /31 announcements	0	Prefix /31 withdrawals	0	Prefix /31 path updates	0
Prefix /32 total	3	Prefix /32 announcements	2	Prefix /32 withdrawals	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	0.19	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.80	Prefix /16 path updates	0.13
Prefix /17 total	0.09	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.44	Prefix /17 path updates	0.05
Prefix /18 total	0.30	Prefix /18 announcements	0.00	Prefix /18 withdrawals	1.07	Prefix /18 path updates	0.23
Prefix /19 total	1.47	Prefix /19 announcements	0.23	Prefix /19 withdrawals	0.15	Prefix /19 path updates	1.72
Prefix /20 total	0.42	Prefix /20 announcements	0.75	Prefix /20 withdrawals	0.48	Prefix /20 path updates	0.38
Prefix /21 total	1.46	Prefix /21 announcements	0.43	Prefix /21 withdrawals	0.21	Prefix /21 path updates	1.69
Prefix /22 total	1.03	Prefix /22 announcements	0.50	Prefix /22 withdrawals	0.51	Prefix /22 path updates	1.14
Prefix /23 total	0.92	Prefix /23 announcements	1.22	Prefix /23 withdrawals	0.85	Prefix /23 path updates	0.90
Prefix /24 total	0.89	Prefix /24 announcements	1.19	Prefix /24 withdrawals	1.27	Prefix /24 path updates	0.82
Prefix /25 total	125.15	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	149.80
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	46.11	Prefix /32 announcements	480.84	Prefix /32 withdrawals	0.00	Prefix /32 path updates	18.40

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	2784.000	New Entries	178.000	Removed Entries	280.000	Updated Entries	2326.000
Address Span	3065603.000	Address Span	96770.000	Address Span	419584.000	Address Span	2549249.000
Average address span per update	1101.000	Avg Span	543.000	Avg Span	1498.000	Avg Span	1095.000
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	7.000	Prefix /16 announcements	0.000	Prefix /16 withdrawals	3.000	Prefix /16 path updates	4.000
Prefix /17 update rate	2.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	1.000	Prefix /17 path updates	1.000
Prefix /18 update rate	11.000	Prefix /18 announcements	0.000	Prefix /18 withdrawals	4.000	Prefix /18 path updates	7.000
Prefix /19 update rate	100.000	Prefix /19 announcements	1.000	Prefix /19 withdrawals	1.000	Prefix /19 path updates	98.000
Prefix /20 update rate	52.000	Prefix /20 announcements	6.000	Prefix /20 withdrawals	6.000	Prefix /20 path updates	40.000
Prefix /21 update rate	212.000	Prefix /21 announcements	4.000	Prefix /21 withdrawals	3.000	Prefix /21 path updates	205.000
Prefix /22 update rate	321.000	Prefix /22 announcements	10.000	Prefix /22 withdrawals	16.000	Prefix /22 path updates	295.000
Prefix /23 update rate	269.000	Prefix /23 announcements	23.000	Prefix /23 withdrawals	25.000	Prefix /23 path updates	221.000
Prefix /24 update rate	1539.000	Prefix /24 announcements	132.000	Prefix /24 withdrawals	221.000	Prefix /24 path updates	1186.000
Prefix /25 update rate	268.000	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	268.000
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	3.000	Prefix /32 announcements	2.000	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

613

198

154

174

Report

/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

/20 Org

/20 Nxt

/20 Trn

/20 Fst

/20 Prp

/21 Tot

205

/21 Org

/21 Nxt

192

/21 Trn

/21 Fst

/21 Prp

/22 Tot

295

/22 Org

/22 Nxt

172

/22 Trn

114

/22 Fst

/22 Prp

/23 Tot

221

/23 Org

/23 Nxt

167

/23 Trn

/23 Fst

/23 Prp

/24 Tot

1186

/24 Org

/24 Nxt

685

/24 Trn

267

/24 Fst

173

/24 Prp

/25 Tot

268

/25 Org

/25 Nxt

/25 Trn

/25 Fst

192

/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	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	72	% AS's announcing span of /9	0.0009
AS's announcing span of /10	102	% AS's announcing span of /10	0.0013
AS's announcing span of /11	172	% AS's announcing span of /11	0.0022
AS's announcing span of /12	243	% AS's announcing span of /12	0.0032
AS's announcing span of /13	406	% AS's announcing span of /13	0.0053
AS's announcing span of /14	843	% AS's announcing span of /14	0.0110
AS's announcing span of /15	1630	% AS's announcing span of /15	0.0212
AS's announcing span of /16	1785	% AS's announcing span of /16	0.0232
AS's announcing span of /17	2443	% AS's announcing span of /17	0.0318
AS's announcing span of /18	3765	% AS's announcing span of /18	0.0489
AS's announcing span of /19	5129	% AS's announcing span of /19	0.0667
AS's announcing span of /20	7632	% AS's announcing span of /20	0.0992
AS's announcing span of /21	10404	% AS's announcing span of /21	0.1352
AS's announcing span of /22	12856	% AS's announcing span of /22	0.1671
AS's announcing span of /23	10067	% AS's announcing span of /23	0.1309
AS's announcing span of /24	19285	% AS's announcing span of /24	0.2507
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.

ÿÿÿÿÿÿÿÿ ÿÿÿÿÿÿÿÿ ÿÿÿÿÿÿÿÿ

AS Connectivity Report	Data
AS Adjacency Count	128798
Average AS Connectivity Degree (257596/77557)	3.3214
Average AS Connectivity IN:OUT Degree	0.1559
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	572404	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	558037	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	392283	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	392306	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 Sep 15 08:01:09 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