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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Fri Apr 4 02:01:09 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)	1004386	Change in FIB Size	27	Change (%)	0.003
All BGP entries (RIB)	2975580
RIB/FIB ratio (2975580/1004386)	2.9626
Valid entries	2975580
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)	3108982400
Total address space advertised (prefix length)	0.46620470
Percentage of IPv4 space advertised (3108982400/4294967295)	72.386637
Total address space advertised - corrected to 19 /8s	(data)
Average address span	3095
Average address span (as prefix size)	20.4043
Average prefix length	22.9040

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	527966	Specifics as % of FIB entries (527966/1004386)	52.5660
Specifics as % of address span (1143856854/3108982400)	36.7920
Specifics where AS prepended Path matches aggregate	229155	AS-P_Path-Match % (229155/527966)	43.40
AS Path matches aggregate	250024	AS-Path-Match % (250024/527966)	47.3561
AS Origin matches aggregate	405605	AS-Origin-Match % (405605/527966)	76.8241
Root Prefixes	476420
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	419033
Root Prefixes with depth 1	46253
Root Prefixes with depth 2	9010
Root Prefixes with depth 3	1617
Root Prefixes with depth 4	390
Root Prefixes with depth 5	83
Root Prefixes with depth 6	28
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	76978	ASes visible in only one AS path	46658
Origin only ASes	65591	Origin ASs announced via a single AS path	46102
Transit only ASes	572	Originating AS ATOM count	76406
Mixed ASes	10815	Originating AS ATOM compression	0.0761
Multi-Origin Prefixes	1746
ASes originating a single prefix	26757
Average FIB entries per Origin AS	13.1454	Maximum entries for an origin AS (AS7713)	3677
Average address range span for an origin AS	40690.2913	Maximum address range for an origin AS (AS749)	228349696

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	249611	Unique AS prepended Paths	269019
AS Paths used in FIB	125844	AS Paths using prepending	70016
AS paths associated with a single FIB entry	59171	AS Paths using private ASs	55
Average AS path length	5.2624	Number of Prefixes with Selected AS Prepending Paths	151427
Maximum AS Path length	13	Number of Prefixes with AS Prepending Paths	151427
Average address weighted AS path length	6.6577	Maximum prepended AS Path length	91
Average entries per AS Path	4.0238	Average entries per FIB AS Path	7.9812
AS Paths per origin AS	3.2669	FIB AS Paths per origin AS	1.6470
AS PATH ATOM compression	0.1253

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	16	% Prefix /9	0.00
Prefix count /10	41	% 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	1228	% Prefix /14	0.12
Prefix count /15	2173	% Prefix /15	0.22
Prefix count /16	13991	% Prefix /16	1.39
Prefix count /17	8426	% Prefix /17	0.84
Prefix count /18	14032	% Prefix /18	1.40
Prefix count /19	25151	% Prefix /19	2.50
Prefix count /20	45662	% Prefix /20	4.55
Prefix count /21	53243	% Prefix /21	5.30
Prefix count /22	114107	% Prefix /22	11.36
Prefix count /23	106251	% Prefix /23	10.58
Prefix count /24	618240	% Prefix /24	61.55
Prefix count /25	806	% 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	22	% 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	86	% Prefix /11	0.02
Prefix count /12	265	% Prefix /12	0.06
Prefix count /13	488	% Prefix /13	0.10
Prefix count /14	1045	% Prefix /14	0.22
Prefix count /15	1669	% Prefix /15	0.35
Prefix count /16	11055	% Prefix /16	2.32
Prefix count /17	4466	% Prefix /17	0.94
Prefix count /18	6921	% Prefix /18	1.45
Prefix count /19	14802	% Prefix /19	3.11
Prefix count /20	18923	% Prefix /20	3.97
Prefix count /21	22394	% Prefix /21	4.70
Prefix count /22	59372	% Prefix /22	12.46
Prefix count /23	42640	% Prefix /23	8.95
Prefix count /24	292217	% Prefix /24	61.34
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	253507237	% Addresses at AS distance 2	6.0
Addresses at AS distance 3	1153830545	% Addresses at AS distance 3	27.1
Addresses at AS distance 4	1994093344	% Addresses at AS distance 4	46.9
Addresses at AS distance 5	645195392	% Addresses at AS distance 5	15.2
Addresses at AS distance 6	177714048	% Addresses at AS distance 6	4.2
Addresses at AS distance 7	19706624	% Addresses at AS distance 7	0.5
Addresses at AS distance 8	8376832	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	352256	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	55552	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	2048	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	256	% Addresses at AS distance 12	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	253512357	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1407342902	% Addresses reachable within 3 AS hops	33
Addresses reachable within 4 AS hops	3401436246	% Addresses reachable within 4 AS hops	79
Addresses reachable within 5 AS hops	4046631638	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4224345686	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4244052310	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4252429142	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4252781398	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4252836950	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4252838998	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4252839254	% Addresses reachable within 12 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	365	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	9518	% ASes reachable at 3 AS hops	12
ASes reachable at 4 AS hops	28790	% ASes reachable at 4 AS hops	37
ASes reachable at 5 AS hops	28674	% ASes reachable at 5 AS hops	37
ASes reachable at 6 AS hops	7579	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1612	% ASes reachable at 7 AS hops	2
ASes reachable at 8 AS hops	342	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	79	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	15	% 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	0	% ASes reachable at 12 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	368	Cumulative % ASes by AS hops 2	0.5
ASes reachable by 3 AS hops	9886	Cumulative % ASes by AS hops 3	12.8
ASes reachable by 4 AS hops	38676	Cumulative % ASes by AS hops 4	50.2
ASes reachable by 5 AS hops	67350	Cumulative % ASes by AS hops 5	87.5
ASes reachable by 6 AS hops	74929	Cumulative % ASes by AS hops 6	97.3
ASes reachable by 7 AS hops	76541	Cumulative % ASes by AS hops 7	99.4
ASes reachable by 8 AS hops	76883	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	76962	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	76977	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	76978	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	76978	Cumulative % ASes by AS hops 12	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	1480	New Entries	181	Removed Entries	152	Updated Entries	1147
		Report		Report		Report
Address Span	875905	Address Span	70657	Address Span	76032	Address Span	729216
Average address span per update	591	Avg Span	390	Avg Span	500	Avg Span	635
Average prefix size updated	23.56	Average prefix size	23.66	Average prefix size	23.54	Average prefix size	23.55
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /17 total	1	Prefix /17 announcements	0	Prefix /17 withdrawals	0	Prefix /17 path updates	1
Prefix /18 total	0	Prefix /18 announcements	0	Prefix /18 withdrawals	0	Prefix /18 path updates	0
Prefix /19 total	10	Prefix /19 announcements	0	Prefix /19 withdrawals	1	Prefix /19 path updates	9
Prefix /20 total	11	Prefix /20 announcements	0	Prefix /20 withdrawals	0	Prefix /20 path updates	11
Prefix /21 total	129	Prefix /21 announcements	3	Prefix /21 withdrawals	9	Prefix /21 path updates	117
Prefix /22 total	135	Prefix /22 announcements	14	Prefix /22 withdrawals	13	Prefix /22 path updates	108
Prefix /23 total	168	Prefix /23 announcements	33	Prefix /23 withdrawals	12	Prefix /23 path updates	123
Prefix /24 total	754	Prefix /24 announcements	130	Prefix /24 withdrawals	117	Prefix /24 path updates	507
Prefix /25 total	271	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	271
Prefix /26 total	0	Prefix /26 announcements	0	Prefix /26 withdrawals	0	Prefix /26 path updates	0
Prefix /27 total	0	Prefix /27 announcements	0	Prefix /27 withdrawals	0	Prefix /27 path updates	0
Prefix /28 total	0	Prefix /28 announcements	0	Prefix /28 withdrawals	0	Prefix /28 path updates	0
Prefix /29 total	0	Prefix /29 announcements	0	Prefix /29 withdrawals	0	Prefix /29 path updates	0
Prefix /30 total	0	Prefix /30 announcements	0	Prefix /30 withdrawals	0	Prefix /30 path updates	0
Prefix /31 total	0	Prefix /31 announcements	0	Prefix /31 withdrawals	0	Prefix /31 path updates	0
Prefix /32 total	1	Prefix /32 announcements	1	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	0.00	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.00
Prefix /17 total	0.08	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.10
Prefix /18 total	0.00	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.00
Prefix /19 total	0.27	Prefix /19 announcements	0.00	Prefix /19 withdrawals	0.26	Prefix /19 path updates	0.31
Prefix /20 total	0.16	Prefix /20 announcements	0.00	Prefix /20 withdrawals	0.00	Prefix /20 path updates	0.21
Prefix /21 total	1.64	Prefix /21 announcements	0.31	Prefix /21 withdrawals	1.12	Prefix /21 path updates	1.92
Prefix /22 total	0.80	Prefix /22 announcements	0.68	Prefix /22 withdrawals	0.75	Prefix /22 path updates	0.83
Prefix /23 total	1.07	Prefix /23 announcements	1.72	Prefix /23 withdrawals	0.75	Prefix /23 path updates	1.01
Prefix /24 total	0.83	Prefix /24 announcements	1.17	Prefix /24 withdrawals	1.25	Prefix /24 path updates	0.72
Prefix /25 total	228.18	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	294.42
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	30.85	Prefix /32 announcements	252.23	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	1480.411	New Entries	181.050	Removed Entries	152.042	Updated Entries	1147.319
Address Span	876148.375	Address Span	70676.633	Address Span	76053.125	Address Span	729418.625
Average address span per update	591.164	Avg Span	390.108	Avg Span	500.139	Avg Span	635.176
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	0.000	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	0.000
Prefix /17 update rate	1.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	1.000
Prefix /18 update rate	0.000	Prefix /18 announcements	0.000	Prefix /18 withdrawals	0.000	Prefix /18 path updates	0.000
Prefix /19 update rate	10.003	Prefix /19 announcements	0.000	Prefix /19 withdrawals	1.000	Prefix /19 path updates	9.003
Prefix /20 update rate	11.003	Prefix /20 announcements	0.000	Prefix /20 withdrawals	0.000	Prefix /20 path updates	11.003
Prefix /21 update rate	129.036	Prefix /21 announcements	3.001	Prefix /21 withdrawals	9.003	Prefix /21 path updates	117.033
Prefix /22 update rate	135.038	Prefix /22 announcements	14.004	Prefix /22 withdrawals	13.004	Prefix /22 path updates	108.030
Prefix /23 update rate	168.047	Prefix /23 announcements	33.009	Prefix /23 withdrawals	12.003	Prefix /23 path updates	123.034
Prefix /24 update rate	754.209	Prefix /24 announcements	130.036	Prefix /24 withdrawals	117.033	Prefix /24 path updates	507.141
Prefix /25 update rate	271.075	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	271.075
Prefix /26 update rate	0.000	Prefix /26 announcements	0.000	Prefix /26 withdrawals	0.000	Prefix /26 path updates	0.000
Prefix /27 update rate	0.000	Prefix /27 announcements	0.000	Prefix /27 withdrawals	0.000	Prefix /27 path updates	0.000
Prefix /28 update rate	0.000	Prefix /28 announcements	0.000	Prefix /28 withdrawals	0.000	Prefix /28 path updates	0.000
Prefix /29 update rate	0.000	Prefix /29 announcements	0.000	Prefix /29 withdrawals	0.000	Prefix /29 path updates	0.000
Prefix /30 update rate	0.000	Prefix /30 announcements	0.000	Prefix /30 withdrawals	0.000	Prefix /30 path updates	0.000
Prefix /31 update rate	0.000	Prefix /31 announcements	0.000	Prefix /31 withdrawals	0.000	Prefix /31 path updates	0.000
Prefix /32 update rate	1.000	Prefix /32 announcements	1.000	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	505	Origin Paths	61	NextHop Paths	140	Transit Paths	174	Paths	104	Paths	26
Report
/17 Tot	1	/17 Org	0	/17 Nxt	0	/17 Trn	1	/17 Fst	0	/17 Prp	0
/18 Tot	0	/18 Org	0	/18 Nxt	0	/18 Trn	0	/18 Fst	0	/18 Prp	0
/19 Tot	9	/19 Org	1	/19 Nxt	4	/19 Trn	1	/19 Fst	3	/19 Prp	0
/20 Tot	11	/20 Org	0	/20 Nxt	4	/20 Trn	3	/20 Fst	4	/20 Prp	0
/21 Tot	117	/21 Org	0	/21 Nxt	7	/21 Trn	75	/21 Fst	35	/21 Prp	0
/22 Tot	108	/22 Org	1	/22 Nxt	48	/22 Trn	20	/22 Fst	31	/22 Prp	8
/23 Tot	123	/23 Org	0	/23 Nxt	39	/23 Trn	21	/23 Fst	50	/23 Prp	13
/24 Tot	507	/24 Org	4	/24 Nxt	168	/24 Trn	137	/24 Fst	160	/24 Prp	38
/25 Tot	271	/25 Org	59	/25 Nxt	18	/25 Trn	0	/25 Fst	194	/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	10	% AS's announcing span of /6	0.0001
AS's announcing span of /7	23	% AS's announcing span of /7	0.0003
AS's announcing span of /8	45	% AS's announcing span of /8	0.0006
AS's announcing span of /9	70	% AS's announcing span of /9	0.0009
AS's announcing span of /10	106	% AS's announcing span of /10	0.0014
AS's announcing span of /11	168	% AS's announcing span of /11	0.0022
AS's announcing span of /12	244	% AS's announcing span of /12	0.0032
AS's announcing span of /13	399	% AS's announcing span of /13	0.0052
AS's announcing span of /14	838	% AS's announcing span of /14	0.0110
AS's announcing span of /15	1665	% AS's announcing span of /15	0.0218
AS's announcing span of /16	1762	% AS's announcing span of /16	0.0231
AS's announcing span of /17	2455	% AS's announcing span of /17	0.0322
AS's announcing span of /18	3739	% AS's announcing span of /18	0.0490
AS's announcing span of /19	5146	% AS's announcing span of /19	0.0674
AS's announcing span of /20	7554	% AS's announcing span of /20	0.0990
AS's announcing span of /21	10453	% AS's announcing span of /21	0.1369
AS's announcing span of /22	12783	% AS's announcing span of /22	0.1675
AS's announcing span of /23	9867	% AS's announcing span of /23	0.1293
AS's announcing span of /24	18985	% AS's announcing span of /24	0.2487
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	128580
Average AS Connectivity Degree (257160/76978)	3.3407
Average AS Connectivity IN:OUT Degree	0.1544
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	558356	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	541192	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	379155	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	379184	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 Fri Apr 4 02:01:09 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