BGP Home Table Reports CIDR Reports Update Reports IPv4 Reports IPv6 Reports ASN Reports Distribution Reports

AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Thu Apr 3 03:01:09 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)	1003860	Change in FIB Size	123	Change (%)	0.012
All BGP entries (RIB)	2973984
RIB/FIB ratio (2973984/1003860)	2.9625
Valid entries	2973984
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)	3109083392
Total address space advertised (prefix length)	0.46615783
Percentage of IPv4 space advertised (3109083392/4294967295)	72.388989
Total address space advertised - corrected to 19 /8s	(data)
Average address span	3097
Average address span (as prefix size)	20.4033
Average prefix length	22.9032

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	527474	Specifics as % of FIB entries (527474/1003860)	52.5446
Specifics as % of address span (1144521555/3109083392)	36.8122
Specifics where AS prepended Path matches aggregate	229501	AS-P_Path-Match % (229501/527474)	43.51
AS Path matches aggregate	250459	AS-Path-Match % (250459/527474)	47.4827
AS Origin matches aggregate	405353	AS-Origin-Match % (405353/527474)	76.8480
Root Prefixes	476386
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	419011
Root Prefixes with depth 1	46247
Root Prefixes with depth 2	9010
Root Prefixes with depth 3	1610
Root Prefixes with depth 4	391
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	76946	ASes visible in only one AS path	46671
Origin only ASes	65562	Origin ASs announced via a single AS path	46120
Transit only ASes	565	Originating AS ATOM count	76381
Mixed ASes	10819	Originating AS ATOM compression	0.0761
Multi-Origin Prefixes	1738
ASes originating a single prefix	26732
Average FIB entries per Origin AS	13.1428	Maximum entries for an origin AS (AS7713)	3676
Average address range span for an origin AS	40704.9318	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	249693	Unique AS prepended Paths	269117
AS Paths used in FIB	125717	AS Paths using prepending	70292
AS paths associated with a single FIB entry	59123	AS Paths using private ASs	55
Average AS path length	5.2624	Number of Prefixes with Selected AS Prepending Paths	151876
Maximum AS Path length	13	Number of Prefixes with AS Prepending Paths	151876
Average address weighted AS path length	6.6590	Maximum prepended AS Path length	91
Average entries per AS Path	4.0204	Average entries per FIB AS Path	7.9851
AS Paths per origin AS	3.2690	FIB AS Paths per origin AS	1.6459
AS PATH ATOM compression	0.1252

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	2175	% Prefix /15	0.22
Prefix count /16	14002	% Prefix /16	1.39
Prefix count /17	8422	% Prefix /17	0.84
Prefix count /18	14033	% Prefix /18	1.40
Prefix count /19	25148	% Prefix /19	2.51
Prefix count /20	45670	% Prefix /20	4.55
Prefix count /21	53238	% Prefix /21	5.30
Prefix count /22	114157	% Prefix /22	11.37
Prefix count /23	106241	% Prefix /23	10.58
Prefix count /24	617667	% Prefix /24	61.53
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	19	% 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	1671	% Prefix /15	0.35
Prefix count /16	11056	% Prefix /16	2.32
Prefix count /17	4463	% Prefix /17	0.94
Prefix count /18	6921	% Prefix /18	1.45
Prefix count /19	14798	% Prefix /19	3.11
Prefix count /20	18901	% Prefix /20	3.97
Prefix count /21	22394	% Prefix /21	4.70
Prefix count /22	59366	% Prefix /22	12.46
Prefix count /23	42645	% Prefix /23	8.95
Prefix count /24	292209	% Prefix /24	61.34
Prefix count /25	12	% 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	253496994	% Addresses at AS distance 2	6.0
Addresses at AS distance 3	1154331792	% Addresses at AS distance 3	27.1
Addresses at AS distance 4	1994647968	% Addresses at AS distance 4	46.9
Addresses at AS distance 5	643792768	% Addresses at AS distance 5	15.1
Addresses at AS distance 6	178608769	% Addresses at AS distance 6	4.2
Addresses at AS distance 7	19785600	% Addresses at AS distance 7	0.5
Addresses at AS distance 8	8406272	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	450560	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	71424	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	7680	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	0	% 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	253502114	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1407833906	% Addresses reachable within 3 AS hops	33
Addresses reachable within 4 AS hops	3402481874	% Addresses reachable within 4 AS hops	79
Addresses reachable within 5 AS hops	4046274642	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4224883411	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4244669011	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4253075283	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4253525843	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4253597267	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4253604947	% Addresses reachable within 11 AS hops	100
Addresses reachable within 12 AS hops	4253604947	% 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	363	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	9512	% ASes reachable at 3 AS hops	12
ASes reachable at 4 AS hops	28804	% ASes reachable at 4 AS hops	37
ASes reachable at 5 AS hops	28717	% ASes reachable at 5 AS hops	37
ASes reachable at 6 AS hops	7510	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1598	% ASes reachable at 7 AS hops	2
ASes reachable at 8 AS hops	346	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	75	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	17	% 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	366	Cumulative % ASes by AS hops 2	0.5
ASes reachable by 3 AS hops	9878	Cumulative % ASes by AS hops 3	12.8
ASes reachable by 4 AS hops	38682	Cumulative % ASes by AS hops 4	50.3
ASes reachable by 5 AS hops	67399	Cumulative % ASes by AS hops 5	87.6
ASes reachable by 6 AS hops	74909	Cumulative % ASes by AS hops 6	97.4
ASes reachable by 7 AS hops	76507	Cumulative % ASes by AS hops 7	99.4
ASes reachable by 8 AS hops	76853	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	76928	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	76945	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	76946	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	76946	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	2103	New Entries	260	Removed Entries	129	Updated Entries	1714
		Report		Report		Report
Address Span	6403329	Address Span	157697	Address Span	56832	Address Span	6188800
Average address span per update	3044	Avg Span	606	Avg Span	440	Avg Span	3610
Average prefix size updated	23.32	Average prefix size	23.77	Average prefix size	23.61	Average prefix size	23.23
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /14 total	4	Prefix /14 announcements	0	Prefix /14 withdrawals	0	Prefix /14 path updates	4
Prefix /15 total	6	Prefix /15 announcements	0	Prefix /15 withdrawals	0	Prefix /15 path updates	6
Prefix /16 total	45	Prefix /16 announcements	1	Prefix /16 withdrawals	0	Prefix /16 path updates	44
Prefix /17 total	10	Prefix /17 announcements	0	Prefix /17 withdrawals	0	Prefix /17 path updates	10
Prefix /18 total	3	Prefix /18 announcements	0	Prefix /18 withdrawals	0	Prefix /18 path updates	3
Prefix /19 total	29	Prefix /19 announcements	0	Prefix /19 withdrawals	0	Prefix /19 path updates	29
Prefix /20 total	57	Prefix /20 announcements	1	Prefix /20 withdrawals	2	Prefix /20 path updates	54
Prefix /21 total	56	Prefix /21 announcements	4	Prefix /21 withdrawals	3	Prefix /21 path updates	49
Prefix /22 total	191	Prefix /22 announcements	15	Prefix /22 withdrawals	9	Prefix /22 path updates	167
Prefix /23 total	235	Prefix /23 announcements	14	Prefix /23 withdrawals	15	Prefix /23 path updates	206
Prefix /24 total	1196	Prefix /24 announcements	224	Prefix /24 withdrawals	100	Prefix /24 path updates	872
Prefix /25 total	270	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	270
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	1.55	Prefix /14 announcements	0.00	Prefix /14 withdrawals	0.00	Prefix /14 path updates	1.91
Prefix /15 total	1.32	Prefix /15 announcements	0.00	Prefix /15 withdrawals	0.00	Prefix /15 path updates	1.62
Prefix /16 total	1.53	Prefix /16 announcements	0.28	Prefix /16 withdrawals	0.00	Prefix /16 path updates	1.84
Prefix /17 total	0.57	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.70
Prefix /18 total	0.10	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.13
Prefix /19 total	0.55	Prefix /19 announcements	0.00	Prefix /19 withdrawals	0.00	Prefix /19 path updates	0.68
Prefix /20 total	0.60	Prefix /20 announcements	0.08	Prefix /20 withdrawals	0.34	Prefix /20 path updates	0.69
Prefix /21 total	0.50	Prefix /21 announcements	0.29	Prefix /21 withdrawals	0.44	Prefix /21 path updates	0.54
Prefix /22 total	0.80	Prefix /22 announcements	0.51	Prefix /22 withdrawals	0.61	Prefix /22 path updates	0.86
Prefix /23 total	1.06	Prefix /23 announcements	0.51	Prefix /23 withdrawals	1.10	Prefix /23 path updates	1.14
Prefix /24 total	0.92	Prefix /24 announcements	1.40	Prefix /24 withdrawals	1.26	Prefix /24 path updates	0.83
Prefix /25 total	159.91	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	196.20
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	25.12	Prefix /32 announcements	203.21	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	2103.000	New Entries	260.000	Removed Entries	129.000	Updated Entries	1714.000
Address Span	6403329.000	Address Span	157697.000	Address Span	56832.000	Address Span	6188800.000
Average address span per update	3044.000	Avg Span	606.000	Avg Span	440.000	Avg Span	3610.000
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	4.000	Prefix /14 announcements	0.000	Prefix /14 withdrawals	0.000	Prefix /14 path updates	4.000
Prefix /15 update rate	6.000	Prefix /15 announcements	0.000	Prefix /15 withdrawals	0.000	Prefix /15 path updates	6.000
Prefix /16 update rate	45.000	Prefix /16 announcements	1.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	44.000
Prefix /17 update rate	10.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	10.000
Prefix /18 update rate	3.000	Prefix /18 announcements	0.000	Prefix /18 withdrawals	0.000	Prefix /18 path updates	3.000
Prefix /19 update rate	29.000	Prefix /19 announcements	0.000	Prefix /19 withdrawals	0.000	Prefix /19 path updates	29.000
Prefix /20 update rate	57.000	Prefix /20 announcements	1.000	Prefix /20 withdrawals	2.000	Prefix /20 path updates	54.000
Prefix /21 update rate	56.000	Prefix /21 announcements	4.000	Prefix /21 withdrawals	3.000	Prefix /21 path updates	49.000
Prefix /22 update rate	191.000	Prefix /22 announcements	15.000	Prefix /22 withdrawals	9.000	Prefix /22 path updates	167.000
Prefix /23 update rate	235.000	Prefix /23 announcements	14.000	Prefix /23 withdrawals	15.000	Prefix /23 path updates	206.000
Prefix /24 update rate	1196.000	Prefix /24 announcements	224.000	Prefix /24 withdrawals	100.000	Prefix /24 path updates	872.000
Prefix /25 update rate	270.000	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	270.000
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	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	654	Origin Paths	61	NextHop Paths	171	Transit Paths	237	Paths	150	Paths	35
Report
/14 Tot	4	/14 Org	0	/14 Nxt	0	/14 Trn	0	/14 Fst	4	/14 Prp	0
/15 Tot	6	/15 Org	0	/15 Nxt	0	/15 Trn	0	/15 Fst	4	/15 Prp	2
/16 Tot	44	/16 Org	0	/16 Nxt	1	/16 Trn	0	/16 Fst	15	/16 Prp	28
/17 Tot	10	/17 Org	0	/17 Nxt	0	/17 Trn	1	/17 Fst	1	/17 Prp	8
/18 Tot	3	/18 Org	0	/18 Nxt	0	/18 Trn	2	/18 Fst	1	/18 Prp	0
/19 Tot	29	/19 Org	0	/19 Nxt	18	/19 Trn	0	/19 Fst	3	/19 Prp	8
/20 Tot	54	/20 Org	0	/20 Nxt	9	/20 Trn	10	/20 Fst	11	/20 Prp	24
/21 Tot	49	/21 Org	1	/21 Nxt	23	/21 Trn	7	/21 Fst	7	/21 Prp	11
/22 Tot	167	/22 Org	1	/22 Nxt	41	/22 Trn	43	/22 Fst	40	/22 Prp	42
/23 Tot	206	/23 Org	1	/23 Nxt	47	/23 Trn	45	/23 Fst	72	/23 Prp	41
/24 Tot	872	/24 Org	5	/24 Nxt	277	/24 Trn	213	/24 Fst	301	/24 Prp	76
/25 Tot	270	/25 Org	59	/25 Nxt	18	/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	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	170	% AS's announcing span of /11	0.0022
AS's announcing span of /12	241	% AS's announcing span of /12	0.0032
AS's announcing span of /13	400	% AS's announcing span of /13	0.0052
AS's announcing span of /14	839	% AS's announcing span of /14	0.0110
AS's announcing span of /15	1661	% AS's announcing span of /15	0.0218
AS's announcing span of /16	1764	% AS's announcing span of /16	0.0231
AS's announcing span of /17	2456	% AS's announcing span of /17	0.0322
AS's announcing span of /18	3740	% AS's announcing span of /18	0.0490
AS's announcing span of /19	5135	% AS's announcing span of /19	0.0673
AS's announcing span of /20	7561	% AS's announcing span of /20	0.0991
AS's announcing span of /21	10449	% AS's announcing span of /21	0.1369
AS's announcing span of /22	12776	% AS's announcing span of /22	0.1674
AS's announcing span of /23	9871	% AS's announcing span of /23	0.1294
AS's announcing span of /24	18972	% AS's announcing span of /24	0.2486
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	128528
Average AS Connectivity Degree (257056/76946)	3.3407
Average AS Connectivity IN:OUT Degree	0.1549
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	557374	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	540267	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	379113	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	379140	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 Apr 3 03:01:09 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