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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Sun Feb 1 21:01:10 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)	1055580	Change in FIB Size	3	Change (%)	0.000
All BGP entries (RIB)	3128850
RIB/FIB ratio (3128850/1055580)	2.9641
Valid entries	3128850
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)	3106946432
Total address space advertised (prefix length)	0.46714978
Percentage of IPv4 space advertised (3106946432/4294967295)	72.339234
Total address space advertised - corrected to 19 /8s	(data)
Average address span	2943
Average address span (as prefix size)	20.4769
Average prefix length	22.9452

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	547926	Specifics as % of FIB entries (547926/1055580)	51.9076
Specifics as % of address span (1114353662/3106946432)	35.8665
Specifics where AS prepended Path matches aggregate	245247	AS-P_Path-Match % (245247/547926)	44.76
AS Path matches aggregate	264327	AS-Path-Match % (264327/547926)	48.2414
AS Origin matches aggregate	420838	AS-Origin-Match % (420838/547926)	76.8056
Root Prefixes	507654
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	449194
Root Prefixes with depth 1	47224
Root Prefixes with depth 2	9158
Root Prefixes with depth 3	1587
Root Prefixes with depth 4	381
Root Prefixes with depth 5	76
Root Prefixes with depth 6	27
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	78067	ASes visible in only one AS path	46850
Origin only ASes	66676	Origin ASs announced via a single AS path	46303
Transit only ASes	580	Originating AS ATOM count	77487
Mixed ASes	10811	Originating AS ATOM compression	0.0734
Multi-Origin Prefixes	2272
ASes originating a single prefix	27035
Average FIB entries per Origin AS	13.6227	Maximum entries for an origin AS (AS7713)	3729
Average address range span for an origin AS	40096.3572	Maximum address range for an origin AS (AS749)	227731968

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	266822	Unique AS prepended Paths	283899
AS Paths used in FIB	130880	AS Paths using prepending	63898
AS paths associated with a single FIB entry	62289	AS Paths using private ASs	21
Average AS path length	5.2191	Number of Prefixes with Selected AS Prepending Paths	137687
Maximum AS Path length	15	Number of Prefixes with AS Prepending Paths	137687
Average address weighted AS path length	6.5614	Maximum prepended AS Path length	210
Average entries per AS Path	3.9561	Average entries per FIB AS Path	8.0653
AS Paths per origin AS	3.4434	FIB AS Paths per origin AS	1.6891
AS PATH ATOM compression	0.1240

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	40	% Prefix /10	0.00
Prefix count /11	93	% Prefix /11	0.01
Prefix count /12	302	% Prefix /12	0.03
Prefix count /13	582	% Prefix /13	0.06
Prefix count /14	1201	% Prefix /14	0.11
Prefix count /15	2101	% Prefix /15	0.20
Prefix count /16	13779	% Prefix /16	1.31
Prefix count /17	8425	% Prefix /17	0.80
Prefix count /18	13749	% Prefix /18	1.30
Prefix count /19	25422	% Prefix /19	2.41
Prefix count /20	47182	% Prefix /20	4.47
Prefix count /21	53750	% Prefix /21	5.09
Prefix count /22	115538	% Prefix /22	10.95
Prefix count /23	111084	% Prefix /23	10.52
Prefix count /24	661606	% Prefix /24	62.68
Prefix count /25	686	% Prefix /25	0.06
Prefix count /26	1	% Prefix /26	0.00
Prefix count /27	1	% Prefix /27	0.00
Prefix count /28	1	% Prefix /28	0.00
Prefix count /29	1	% Prefix /29	0.00
Prefix count /30	0	% Prefix /30	0.00
Prefix count /31	0	% Prefix /31	0.00
Prefix count /32	6	% 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	40	% Prefix /10	0.01
Prefix count /11	88	% Prefix /11	0.02
Prefix count /12	264	% Prefix /12	0.05
Prefix count /13	486	% Prefix /13	0.10
Prefix count /14	1025	% Prefix /14	0.20
Prefix count /15	1628	% Prefix /15	0.32
Prefix count /16	10932	% Prefix /16	2.15
Prefix count /17	4470	% Prefix /17	0.88
Prefix count /18	7035	% Prefix /18	1.39
Prefix count /19	14878	% Prefix /19	2.93
Prefix count /20	20482	% Prefix /20	4.03
Prefix count /21	22826	% Prefix /21	4.50
Prefix count /22	60305	% Prefix /22	11.88
Prefix count /23	45164	% Prefix /23	8.90
Prefix count /24	317997	% Prefix /24	62.64
Prefix count /25	9	% 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	210141534	% Addresses at AS distance 2	5.0
Addresses at AS distance 3	1271043712	% Addresses at AS distance 3	30.1
Addresses at AS distance 4	1988351008	% Addresses at AS distance 4	47.1
Addresses at AS distance 5	566617088	% Addresses at AS distance 5	13.4
Addresses at AS distance 6	162217088	% Addresses at AS distance 6	3.8
Addresses at AS distance 7	13571328	% Addresses at AS distance 7	0.3
Addresses at AS distance 8	8665088	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	415744	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	24320	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	66560	% 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	180224	% 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	210146654	% Addresses reachable within 2 AS hops	4
Addresses reachable within 3 AS hops	1481190366	% Addresses reachable within 3 AS hops	35
Addresses reachable within 4 AS hops	3469541374	% Addresses reachable within 4 AS hops	82
Addresses reachable within 5 AS hops	4036158462	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4198375550	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4211946878	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4220611966	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4221027710	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4221052030	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4221118590	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4221118590	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4221298814	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4221300094	% 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	219	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	8204	% ASes reachable at 3 AS hops	10
ASes reachable at 4 AS hops	33770	% ASes reachable at 4 AS hops	43
ASes reachable at 5 AS hops	28144	% ASes reachable at 5 AS hops	36
ASes reachable at 6 AS hops	6106	% ASes reachable at 6 AS hops	7
ASes reachable at 7 AS hops	1237	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	310	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	48	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	8	% 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

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	222	Cumulative % ASes by AS hops 2	0.3
ASes reachable by 3 AS hops	8426	Cumulative % ASes by AS hops 3	10.8
ASes reachable by 4 AS hops	42196	Cumulative % ASes by AS hops 4	54.1
ASes reachable by 5 AS hops	70340	Cumulative % ASes by AS hops 5	90.1
ASes reachable by 6 AS hops	76446	Cumulative % ASes by AS hops 6	97.9
ASes reachable by 7 AS hops	77683	Cumulative % ASes by AS hops 7	99.5
ASes reachable by 8 AS hops	77993	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	78041	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	78049	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	78055	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	78059	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	78063	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	78067	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	2820	New Entries	162	Removed Entries	158	Updated Entries	2500
		Report		Report		Report
Address Span	4295296	Address Span	72704	Address Span	109056	Address Span	4113536
Average address span per update	1523	Avg Span	448	Avg Span	690	Avg Span	1645
Average prefix size updated	22.99	Average prefix size	23.70	Average prefix size	23.35	Average prefix size	22.92
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	0	Prefix /16 path updates	7
Prefix /17 total	12	Prefix /17 announcements	0	Prefix /17 withdrawals	0	Prefix /17 path updates	12
Prefix /18 total	18	Prefix /18 announcements	0	Prefix /18 withdrawals	0	Prefix /18 path updates	18
Prefix /19 total	160	Prefix /19 announcements	2	Prefix /19 withdrawals	0	Prefix /19 path updates	158
Prefix /20 total	94	Prefix /20 announcements	1	Prefix /20 withdrawals	12	Prefix /20 path updates	81
Prefix /21 total	363	Prefix /21 announcements	0	Prefix /21 withdrawals	5	Prefix /21 path updates	358
Prefix /22 total	156	Prefix /22 announcements	11	Prefix /22 withdrawals	14	Prefix /22 path updates	131
Prefix /23 total	251	Prefix /23 announcements	12	Prefix /23 withdrawals	11	Prefix /23 path updates	228
Prefix /24 total	1530	Prefix /24 announcements	136	Prefix /24 withdrawals	116	Prefix /24 path updates	1278
Prefix /25 total	229	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	229
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	0.00	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	0.00	Prefix /16 path updates	0.21
Prefix /17 total	0.53	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.60
Prefix /18 total	0.49	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.55
Prefix /19 total	2.36	Prefix /19 announcements	0.51	Prefix /19 withdrawals	0.00	Prefix /19 path updates	2.62
Prefix /20 total	0.75	Prefix /20 announcements	0.14	Prefix /20 withdrawals	1.70	Prefix /20 path updates	0.72
Prefix /21 total	2.53	Prefix /21 announcements	0.00	Prefix /21 withdrawals	0.62	Prefix /21 path updates	2.81
Prefix /22 total	0.51	Prefix /22 announcements	0.62	Prefix /22 withdrawals	0.81	Prefix /22 path updates	0.48
Prefix /23 total	0.85	Prefix /23 announcements	0.70	Prefix /23 withdrawals	0.66	Prefix /23 path updates	0.87
Prefix /24 total	0.87	Prefix /24 announcements	1.34	Prefix /24 withdrawals	1.17	Prefix /24 path updates	0.82
Prefix /25 total	124.95	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	140.95
Prefix /26 total	0.00	Prefix /26 announcements	0.00	Prefix /26 withdrawals	0.00	Prefix /26 path updates	0.00
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	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 1 hrs 0 mins)	Data	Announce Rate	Data	Withdraw Rate	Data	Path Chg Rate	Data
Table Updates	2820.000	New Entries	162.000	Removed Entries	158.000	Updated Entries	2500.000
Address Span	4295296.000	Address Span	72704.000	Address Span	109056.000	Address Span	4113536.000
Average address span per update	1523.000	Avg Span	448.000	Avg Span	690.000	Avg Span	1645.000
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	0.000	Prefix /16 path updates	7.000
Prefix /17 update rate	12.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	12.000
Prefix /18 update rate	18.000	Prefix /18 announcements	0.000	Prefix /18 withdrawals	0.000	Prefix /18 path updates	18.000
Prefix /19 update rate	160.000	Prefix /19 announcements	2.000	Prefix /19 withdrawals	0.000	Prefix /19 path updates	158.000
Prefix /20 update rate	94.000	Prefix /20 announcements	1.000	Prefix /20 withdrawals	12.000	Prefix /20 path updates	81.000
Prefix /21 update rate	363.000	Prefix /21 announcements	0.000	Prefix /21 withdrawals	5.000	Prefix /21 path updates	358.000
Prefix /22 update rate	156.000	Prefix /22 announcements	11.000	Prefix /22 withdrawals	14.000	Prefix /22 path updates	131.000
Prefix /23 update rate	251.000	Prefix /23 announcements	12.000	Prefix /23 withdrawals	11.000	Prefix /23 path updates	228.000
Prefix /24 update rate	1530.000	Prefix /24 announcements	136.000	Prefix /24 withdrawals	116.000	Prefix /24 path updates	1278.000
Prefix /25 update rate	229.000	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	229.000
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	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

489

153

155

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

158

/19 Org

/19 Nxt

129

/19 Trn

/19 Fst

/19 Prp

/20 Tot

/20 Org

/20 Nxt

/20 Trn

/20 Fst

/20 Prp

/21 Tot

358

/21 Org

/21 Nxt

252

/21 Trn

/21 Fst

/21 Prp

/22 Tot

131

/22 Org

/22 Nxt

111

/22 Trn

/22 Fst

/22 Prp

/23 Tot

228

/23 Org

/23 Nxt

181

/23 Trn

/23 Fst

/23 Prp

/24 Tot

1278

/24 Org

/24 Nxt

673

/24 Trn

178

/24 Fst

379

/24 Prp

/25 Tot

229

/25 Org

/25 Nxt

/25 Trn

/25 Fst

155

/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	40	% AS's announcing span of /8	0.0005
AS's announcing span of /9	76	% AS's announcing span of /9	0.0010
AS's announcing span of /10	104	% AS's announcing span of /10	0.0013
AS's announcing span of /11	174	% AS's announcing span of /11	0.0022
AS's announcing span of /12	239	% AS's announcing span of /12	0.0031
AS's announcing span of /13	401	% AS's announcing span of /13	0.0052
AS's announcing span of /14	846	% AS's announcing span of /14	0.0109
AS's announcing span of /15	1633	% AS's announcing span of /15	0.0211
AS's announcing span of /16	1767	% AS's announcing span of /16	0.0228
AS's announcing span of /17	2451	% AS's announcing span of /17	0.0317
AS's announcing span of /18	3767	% AS's announcing span of /18	0.0487
AS's announcing span of /19	5172	% AS's announcing span of /19	0.0668
AS's announcing span of /20	7630	% AS's announcing span of /20	0.0985
AS's announcing span of /21	10492	% AS's announcing span of /21	0.1355
AS's announcing span of /22	12895	% AS's announcing span of /22	0.1665
AS's announcing span of /23	10149	% AS's announcing span of /23	0.1311
AS's announcing span of /24	19537	% AS's announcing span of /24	0.2523
AS's announcing span of /25	15	% 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	129683
Average AS Connectivity Degree (259366/78067)	3.3224
Average AS Connectivity IN:OUT Degree	0.1570
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	583609	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	569423	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	399534	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	399559	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 Sun Feb 1 21:01:10 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