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   AS6447 BGP Routing Table Analysis Report
   
  BGP data obtained from AS6447
Report last updated at Tue Feb 3 20:00:00 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)1076818   Change in FIB Size26   Change (%)0.002
    All BGP entries (RIB)17712067
    RIB/FIB ratio (17712067/1076818)16.4485
      Valid entries17712067
      Suppressed RIB entries0
      Damped entries0
      History entries0

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)3104449232
    Total address space advertised (prefix length)0.46830981
    Percentage of IPv4 space advertised (3104449232/4294967295)72.281091
    Total address space advertised - corrected to 19 /8s(data)
Average address span 2883
    Average address span (as prefix size)20.5071
Average prefix length22.9673

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 aggregates568669       Specifics as % of FIB entries (568669/1076818)52.8101
    Specifics as % of address span (1131239392/3104449232)36.4393    
    Specifics where AS prepended Path matches aggregate231799         AS-P_Path-Match % (231799/568669)40.76
    AS Path matches aggregate248065         AS-Path-Match % (248065/568669)43.6220
    AS Origin matches aggregate439743         AS-Origin-Match % (439743/568669)77.3285
    Root Prefixes508149
Root Prefix Tree Depth(data)
      Root Prefixes with depth 0449519
      Root Prefixes with depth 147354
      Root Prefixes with depth 29178
      Root Prefixes with depth 31615
      Root Prefixes with depth 4374
      Root Prefixes with depth 574
      Root Prefixes with depth 628
      Root Prefixes with depth 76
      Root Prefixes with depth 81

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 ASes78315       ASes visible in only one AS path46351
    Origin only ASes65763         Origin ASs announced via a single AS path45207
    Transit only ASes671       Originating AS ATOM count77644
    Mixed ASes11881         Originating AS ATOM compression0.0721
    Multi-Origin Prefixes5664    
    ASes originating a single prefix27022    
    Average FIB entries per Origin AS13.8687         Maximum entries for an origin AS (AS58224)1167
    Average address range span for an origin AS39983.1182         Maximum address range for an origin AS (AS749)227732224

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 Paths2048168       Unique AS prepended Paths2211583
AS Paths used in FIB133067       AS Paths using prepending586055
    AS paths associated with a single FIB entry64296       AS Paths using private ASs114
    Average AS path length3.8950       Number of Prefixes with Selected AS Prepending Paths125026
      Maximum AS Path length16       Number of Prefixes with AS Prepending Paths125026
    Average address weighted AS path length4.8745       Maximum prepended AS Path length211
    Average entries per AS Path0.5257       Average entries per FIB AS Path8.0923
    AS Paths per origin AS26.3790       FIB AS Paths per origin AS1.7138
      AS PATH ATOM compression0.1236    

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 /816       % Prefix /80.00
    Prefix count /914       % Prefix /90.00
    Prefix count /1040       % Prefix /100.00
    Prefix count /1192       % Prefix /110.01
    Prefix count /12303       % Prefix /120.03
    Prefix count /13582       % Prefix /130.05
    Prefix count /141210       % Prefix /140.11
    Prefix count /152125       % Prefix /150.20
    Prefix count /1613806       % Prefix /161.28
    Prefix count /178460       % Prefix /170.79
    Prefix count /1813793       % Prefix /181.28
    Prefix count /1925433       % Prefix /192.36
    Prefix count /2047247       % Prefix /204.39
    Prefix count /2153934       % Prefix /215.01
    Prefix count /22116129       % Prefix /2210.78
    Prefix count /23111542       % Prefix /2310.36
    Prefix count /24679934       % Prefix /2463.14
    Prefix count /25371       % Prefix /250.03
    Prefix count /26559       % Prefix /260.05
    Prefix count /271027       % Prefix /270.10
    Prefix count /2863       % Prefix /280.01
    Prefix count /2988       % Prefix /290.01
    Prefix count /3014       % Prefix /300.00
    Prefix count /314       % Prefix /310.00
    Prefix count /3232       % Prefix /320.00

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 /816       % Prefix /80.00
    Prefix count /99       % Prefix /90.00
    Prefix count /1040       % Prefix /100.01
    Prefix count /1187       % Prefix /110.02
    Prefix count /12265       % Prefix /120.05
    Prefix count /13484       % Prefix /130.10
    Prefix count /141025       % Prefix /140.20
    Prefix count /151627       % Prefix /150.32
    Prefix count /1610924       % Prefix /162.15
    Prefix count /174470       % Prefix /170.88
    Prefix count /187038       % Prefix /181.39
    Prefix count /1914892       % Prefix /192.93
    Prefix count /2020486       % Prefix /204.03
    Prefix count /2122804       % Prefix /214.49
    Prefix count /2260288       % Prefix /2211.86
    Prefix count /2345180       % Prefix /238.89
    Prefix count /24318503       % Prefix /2462.68
    Prefix count /256       % Prefix /250.00
    Prefix count /262       % Prefix /260.00
    Prefix count /272       % Prefix /270.00
    Prefix count /281       % Prefix /280.00
    Prefix count /290       % Prefix /290.00
    Prefix count /300       % Prefix /300.00
    Prefix count /310       % Prefix /310.00
    Prefix count /320       % Prefix /320.00

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 00       % Addresses at AS distance 00.0
    Addresses at AS distance 1154500604       % Addresses at AS distance 13.6
    Addresses at AS distance 22057625331       % Addresses at AS distance 248.6
    Addresses at AS distance 31580299943       % Addresses at AS distance 337.3
    Addresses at AS distance 4357676528       % Addresses at AS distance 48.4
    Addresses at AS distance 568569002       % Addresses at AS distance 51.6
    Addresses at AS distance 68236416       % Addresses at AS distance 60.2
    Addresses at AS distance 77599872       % Addresses at AS distance 70.2
    Addresses at AS distance 8930304       % Addresses at AS distance 80.0
    Addresses at AS distance 968352       % Addresses at AS distance 90.0
    Addresses at AS distance 10256       % Addresses at AS distance 100.0
    Addresses at AS distance 11180736       % Addresses at AS distance 110.0
    Addresses at AS distance 120       % Addresses at AS distance 120.0
    Addresses at AS distance 131280       % Addresses at AS distance 130.0
    Addresses at AS distance 140       % Addresses at AS distance 140.0
    Addresses at AS distance 150       % Addresses at AS distance 150.0
     
Cumulative Address by AS distance(data)   Cumulative % Address by AS distance(data)
    Addresses reachable within 0 AS hops0       % Addresses reachable within 0 AS hops0
    Addresses reachable within 1 AS hops154500604       % Addresses reachable within 1 AS hops3
    Addresses reachable within 2 AS hops2212125935       % Addresses reachable within 2 AS hops52
    Addresses reachable within 3 AS hops3792425878       % Addresses reachable within 3 AS hops89
    Addresses reachable within 4 AS hops4150102406       % Addresses reachable within 4 AS hops97
    Addresses reachable within 5 AS hops4218671408       % Addresses reachable within 5 AS hops99
    Addresses reachable within 6 AS hops4226907824       % Addresses reachable within 6 AS hops99
    Addresses reachable within 7 AS hops4234507696       % Addresses reachable within 7 AS hops99
    Addresses reachable within 8 AS hops4235438000       % Addresses reachable within 8 AS hops99
    Addresses reachable within 9 AS hops4235506352       % Addresses reachable within 9 AS hops99
    Addresses reachable within 10 AS hops4235506608       % Addresses reachable within 10 AS hops99
    Addresses reachable within 11 AS hops4235687344       % Addresses reachable within 11 AS hops99
    Addresses reachable within 12 AS hops4235687344       % Addresses reachable within 12 AS hops99
    Addresses reachable within 13 AS hops4235688624       % Addresses reachable within 13 AS hops100
    Addresses reachable within 14 AS hops4235688624       % Addresses reachable within 14 AS hops100
    Addresses reachable within 15 AS hops4235688624       % Addresses reachable within 15 AS hops100
     
ASes by AS distance(data)   % ASes by AS hops(data)
    ASes reachable at 0 AS hops1       % ASes reachable at 0 AS hops0
    ASes reachable at 1 AS hops20       % ASes reachable at 1 AS hops0
    ASes reachable at 2 AS hops14330       % ASes reachable at 2 AS hops18
    ASes reachable at 3 AS hops45924       % ASes reachable at 3 AS hops58
    ASes reachable at 4 AS hops14382       % ASes reachable at 4 AS hops18
    ASes reachable at 5 AS hops2879       % ASes reachable at 5 AS hops3
    ASes reachable at 6 AS hops582       % ASes reachable at 6 AS hops0
    ASes reachable at 7 AS hops156       % ASes reachable at 7 AS hops0
    ASes reachable at 8 AS hops19       % ASes reachable at 8 AS hops0
    ASes reachable at 9 AS hops4       % ASes reachable at 9 AS hops0
    ASes reachable at 10 AS hops4       % ASes reachable at 10 AS hops0
    ASes reachable at 11 AS hops6       % ASes reachable at 11 AS hops0
    ASes reachable at 12 AS hops4       % ASes reachable at 12 AS hops0
    ASes reachable at 13 AS hops4       % ASes reachable at 13 AS hops0
    ASes reachable at 14 AS hops0       % ASes reachable at 14 AS hops0
    ASes reachable at 15 AS hops0       % ASes reachable at 15 AS hops0
     
Cumulative ASes by AS hops(data)   Cumulative % ASes by AS hops(data)
    ASes reachable by 0 AS hops1       Cumulative % ASes by AS hops 00.0
    ASes reachable by 1 AS hops21       Cumulative % ASes by AS hops 10.0
    ASes reachable by 2 AS hops14351       Cumulative % ASes by AS hops 218.3
    ASes reachable by 3 AS hops60275       Cumulative % ASes by AS hops 377.0
    ASes reachable by 4 AS hops74657       Cumulative % ASes by AS hops 495.3
    ASes reachable by 5 AS hops77536       Cumulative % ASes by AS hops 599.0
    ASes reachable by 6 AS hops78118       Cumulative % ASes by AS hops 699.7
    ASes reachable by 7 AS hops78274       Cumulative % ASes by AS hops 799.9
    ASes reachable by 8 AS hops78293       Cumulative % ASes by AS hops 8100.0
    ASes reachable by 9 AS hops78297       Cumulative % ASes by AS hops 9100.0
    ASes reachable by 10 AS hops78301       Cumulative % ASes by AS hops 10100.0
    ASes reachable by 11 AS hops78307       Cumulative % ASes by AS hops 11100.0
    ASes reachable by 12 AS hops78311       Cumulative % ASes by AS hops 12100.0
    ASes reachable by 13 AS hops78315       Cumulative % ASes by AS hops 13100.0
    ASes reachable by 14 AS hops78315       Cumulative % ASes by AS hops 14100.0
    ASes reachable by 15 AS hops78315       Cumulative % ASes by AS hops 15100.0

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 ReportsData Sets(txt)  Percentage ReportsData
Originating Addresses AS Count(data)   Originating Addresses % AS Count(data)
    AS's announcing span of /42       % AS's announcing span of /40.0000
    AS's announcing span of /55       % AS's announcing span of /50.0001
    AS's announcing span of /611       % AS's announcing span of /60.0001
    AS's announcing span of /720       % AS's announcing span of /70.0003
    AS's announcing span of /841       % AS's announcing span of /80.0005
    AS's announcing span of /977       % AS's announcing span of /90.0010
    AS's announcing span of /10101       % AS's announcing span of /100.0013
    AS's announcing span of /11176       % AS's announcing span of /110.0023
    AS's announcing span of /12238       % AS's announcing span of /120.0031
    AS's announcing span of /13400       % AS's announcing span of /130.0052
    AS's announcing span of /14845       % AS's announcing span of /140.0109
    AS's announcing span of /151628       % AS's announcing span of /150.0210
    AS's announcing span of /161772       % AS's announcing span of /160.0229
    AS's announcing span of /172447       % AS's announcing span of /170.0316
    AS's announcing span of /183779       % AS's announcing span of /180.0488
    AS's announcing span of /195165       % AS's announcing span of /190.0667
    AS's announcing span of /207611       % AS's announcing span of /200.0983
    AS's announcing span of /2110496       % AS's announcing span of /210.1356
    AS's announcing span of /2212914       % AS's announcing span of /220.1668
    AS's announcing span of /2310150       % AS's announcing span of /230.1311
    AS's announcing span of /2419527       % AS's announcing span of /240.2522
    AS's announcing span of /251       % AS's announcing span of /250.0000
    AS's announcing span of /262       % AS's announcing span of /260.0000
    AS's announcing span of /272       % AS's announcing span of /270.0000
    AS's announcing span of /282       % AS's announcing span of /280.0000
    AS's announcing span of /290       % AS's announcing span of /290.0000
    AS's announcing span of /300       % AS's announcing span of /300.0000
    AS's announcing span of /310       % AS's announcing span of /310.0000
    AS's announcing span of /320       % AS's announcing span of /320.0000

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 ReportData
AS Adjacency Count167402
Average AS Connectivity Degree (334804/78315)4.2751
Average AS Connectivity IN:OUT Degree0.2302
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:

Aggregation possibilities are identified within this filtered prefix set.

Route Aggregation ReportsData
Aggregation Potential Summary(data)
Aggregation Potential Summary(data)
    Aggregation using prepended AS Path597402Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Path585256Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Origin401055Report (sort by %reduction)Report (sort by reduction)BGP Table
    Maximal Aggregation401077Report (sort by %reduction)Report (sort by reduction)BGP Table

BGP Table
BGP Table
Table Summary Report

BGP Report

BGP data obtained from the boundary of AS6447

Report last updated at Tue Feb 3 20:00:00 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