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   AS6447 BGP Routing Table Analysis Report
   
  BGP data obtained from AS6447
Report last updated at Thu Aug 28 20:00:00 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)1047805   Change in FIB Size15   Change (%)0.001
    All BGP entries (RIB)22493120
    RIB/FIB ratio (22493120/1047805)21.4669
      Valid entries22493120
      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)3109079741
    Total address space advertised (prefix length)0.46615953
    Percentage of IPv4 space advertised (3109079741/4294967295)72.388904
    Total address space advertised - corrected to 19 /8s(data)
Average address span 2967
    Average address span (as prefix size)20.4652
Average prefix length22.9446

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 aggregates555156       Specifics as % of FIB entries (555156/1047805)52.9828
    Specifics as % of address span (1129801483/3109079741)36.3388    
    Specifics where AS prepended Path matches aggregate230946         AS-P_Path-Match % (230946/555156)41.60
    AS Path matches aggregate245461         AS-Path-Match % (245461/555156)44.2148
    AS Origin matches aggregate422657         AS-Origin-Match % (422657/555156)76.1330
    Root Prefixes492649
Root Prefix Tree Depth(data)
      Root Prefixes with depth 0433919
      Root Prefixes with depth 146993
      Root Prefixes with depth 29521
      Root Prefixes with depth 31684
      Root Prefixes with depth 4421
      Root Prefixes with depth 581
      Root Prefixes with depth 623
      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 ASes77882       ASes visible in only one AS path45473
    Origin only ASes65316         Origin ASs announced via a single AS path44318
    Transit only ASes678       Originating AS ATOM count77204
    Mixed ASes11888         Originating AS ATOM compression0.0737
    Multi-Origin Prefixes6208    
    ASes originating a single prefix26685    
    Average FIB entries per Origin AS13.5719         Maximum entries for an origin AS (AS58224)1150
    Average address range span for an origin AS40270.9671         Maximum address range for an origin AS (AS749)227885568

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 Paths2667228       Unique AS prepended Paths2875806
AS Paths used in FIB133958       AS Paths using prepending758420
    AS paths associated with a single FIB entry64870       AS Paths using private ASs252
    Average AS path length3.8897       Number of Prefixes with Selected AS Prepending Paths114546
      Maximum AS Path length17       Number of Prefixes with AS Prepending Paths114546
    Average address weighted AS path length4.8445       Maximum prepended AS Path length110
    Average entries per AS Path0.3928       Average entries per FIB AS Path7.8219
    AS Paths per origin AS34.5478       FIB AS Paths per origin AS1.7351
      AS PATH ATOM compression0.1278    

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 /1041       % Prefix /100.00
    Prefix count /1192       % Prefix /110.01
    Prefix count /12298       % Prefix /120.03
    Prefix count /13580       % Prefix /130.06
    Prefix count /141219       % Prefix /140.12
    Prefix count /152182       % Prefix /150.21
    Prefix count /1613885       % Prefix /161.33
    Prefix count /178390       % Prefix /170.80
    Prefix count /1813968       % Prefix /181.33
    Prefix count /1925354       % Prefix /192.42
    Prefix count /2046447       % Prefix /204.43
    Prefix count /2154616       % Prefix /215.21
    Prefix count /22115891       % Prefix /2211.06
    Prefix count /23111780       % Prefix /2310.67
    Prefix count /24650052       % Prefix /2462.04
    Prefix count /25414       % Prefix /250.04
    Prefix count /26569       % Prefix /260.05
    Prefix count /271044       % Prefix /270.10
    Prefix count /2863       % Prefix /280.01
    Prefix count /2987       % Prefix /290.01
    Prefix count /3019       % Prefix /300.00
    Prefix count /314       % Prefix /310.00
    Prefix count /32780       % Prefix /320.07

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 /1041       % Prefix /100.01
    Prefix count /1185       % Prefix /110.02
    Prefix count /12263       % Prefix /120.05
    Prefix count /13486       % Prefix /130.10
    Prefix count /141030       % Prefix /140.21
    Prefix count /151654       % Prefix /150.34
    Prefix count /1611042       % Prefix /162.24
    Prefix count /174460       % Prefix /170.91
    Prefix count /186961       % Prefix /181.41
    Prefix count /1914847       % Prefix /193.01
    Prefix count /2020486       % Prefix /204.16
    Prefix count /2122672       % Prefix /214.60
    Prefix count /2259898       % Prefix /2212.16
    Prefix count /2343723       % Prefix /238.88
    Prefix count /24304712       % Prefix /2461.85
    Prefix count /256       % Prefix /250.00
    Prefix count /262       % Prefix /260.00
    Prefix count /271       % Prefix /270.00
    Prefix count /282       % Prefix /280.00
    Prefix count /290       % Prefix /290.00
    Prefix count /300       % Prefix /300.00
    Prefix count /310       % Prefix /310.00
    Prefix count /32253       % Prefix /320.05

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 1159588220       % Addresses at AS distance 13.8
    Addresses at AS distance 22107251575       % Addresses at AS distance 249.7
    Addresses at AS distance 31545841096       % Addresses at AS distance 336.5
    Addresses at AS distance 4344712407       % Addresses at AS distance 48.1
    Addresses at AS distance 563716533       % Addresses at AS distance 51.5
    Addresses at AS distance 610373761       % Addresses at AS distance 60.2
    Addresses at AS distance 77330304       % Addresses at AS distance 70.2
    Addresses at AS distance 863488       % Addresses at AS distance 80.0
    Addresses at AS distance 92560       % Addresses at AS distance 90.0
    Addresses at AS distance 100       % Addresses at AS distance 100.0
    Addresses at AS distance 110       % Addresses at AS distance 110.0
    Addresses at AS distance 120       % Addresses at AS distance 120.0
    Addresses at AS distance 130       % Addresses at AS distance 130.0
    Addresses at AS distance 141280       % Addresses at AS distance 140.0
    Addresses at AS distance 150       % Addresses at AS distance 150.0
    Addresses at AS distance 160       % Addresses at AS distance 160.0
     
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 hops159588220       % Addresses reachable within 1 AS hops3
    Addresses reachable within 2 AS hops2266839795       % Addresses reachable within 2 AS hops53
    Addresses reachable within 3 AS hops3812680891       % Addresses reachable within 3 AS hops89
    Addresses reachable within 4 AS hops4157393298       % Addresses reachable within 4 AS hops98
    Addresses reachable within 5 AS hops4221109831       % Addresses reachable within 5 AS hops99
    Addresses reachable within 6 AS hops4231483592       % Addresses reachable within 6 AS hops99
    Addresses reachable within 7 AS hops4238813896       % Addresses reachable within 7 AS hops99
    Addresses reachable within 8 AS hops4238877384       % Addresses reachable within 8 AS hops99
    Addresses reachable within 9 AS hops4238879944       % Addresses reachable within 9 AS hops99
    Addresses reachable within 10 AS hops4238879944       % Addresses reachable within 10 AS hops99
    Addresses reachable within 11 AS hops4238879944       % Addresses reachable within 11 AS hops99
    Addresses reachable within 12 AS hops4238879944       % Addresses reachable within 12 AS hops99
    Addresses reachable within 13 AS hops4238879944       % Addresses reachable within 13 AS hops99
    Addresses reachable within 14 AS hops4238881224       % Addresses reachable within 14 AS hops100
    Addresses reachable within 15 AS hops4238881224       % Addresses reachable within 15 AS hops100
    Addresses reachable within 16 AS hops4238881224       % Addresses reachable within 16 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 hops26       % ASes reachable at 1 AS hops0
    ASes reachable at 2 AS hops15516       % ASes reachable at 2 AS hops19
    ASes reachable at 3 AS hops46194       % ASes reachable at 3 AS hops59
    ASes reachable at 4 AS hops12985       % ASes reachable at 4 AS hops16
    ASes reachable at 5 AS hops2463       % ASes reachable at 5 AS hops3
    ASes reachable at 6 AS hops504       % ASes reachable at 6 AS hops0
    ASes reachable at 7 AS hops157       % ASes reachable at 7 AS hops0
    ASes reachable at 8 AS hops16       % ASes reachable at 8 AS hops0
    ASes reachable at 9 AS hops3       % ASes reachable at 9 AS hops0
    ASes reachable at 10 AS hops1       % ASes reachable at 10 AS hops0
    ASes reachable at 11 AS hops4       % 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 hops4       % ASes reachable at 14 AS hops0
    ASes reachable at 15 AS hops0       % ASes reachable at 15 AS hops0
    ASes reachable at 16 AS hops0       % ASes reachable at 16 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 hops27       Cumulative % ASes by AS hops 10.0
    ASes reachable by 2 AS hops15543       Cumulative % ASes by AS hops 220.0
    ASes reachable by 3 AS hops61737       Cumulative % ASes by AS hops 379.3
    ASes reachable by 4 AS hops74722       Cumulative % ASes by AS hops 495.9
    ASes reachable by 5 AS hops77185       Cumulative % ASes by AS hops 599.1
    ASes reachable by 6 AS hops77689       Cumulative % ASes by AS hops 699.8
    ASes reachable by 7 AS hops77846       Cumulative % ASes by AS hops 7100.0
    ASes reachable by 8 AS hops77862       Cumulative % ASes by AS hops 8100.0
    ASes reachable by 9 AS hops77865       Cumulative % ASes by AS hops 9100.0
    ASes reachable by 10 AS hops77866       Cumulative % ASes by AS hops 10100.0
    ASes reachable by 11 AS hops77870       Cumulative % ASes by AS hops 11100.0
    ASes reachable by 12 AS hops77874       Cumulative % ASes by AS hops 12100.0
    ASes reachable by 13 AS hops77878       Cumulative % ASes by AS hops 13100.0
    ASes reachable by 14 AS hops77882       Cumulative % ASes by AS hops 14100.0
    ASes reachable by 15 AS hops77882       Cumulative % ASes by AS hops 15100.0
    ASes reachable by 16 AS hops77882       Cumulative % ASes by AS hops 16100.0

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 /843       % AS's announcing span of /80.0006
    AS's announcing span of /975       % 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 /11172       % AS's announcing span of /110.0022
    AS's announcing span of /12246       % AS's announcing span of /120.0032
    AS's announcing span of /13402       % AS's announcing span of /130.0052
    AS's announcing span of /14840       % AS's announcing span of /140.0109
    AS's announcing span of /151645       % AS's announcing span of /150.0214
    AS's announcing span of /161805       % AS's announcing span of /160.0235
    AS's announcing span of /172447       % AS's announcing span of /170.0318
    AS's announcing span of /183813       % AS's announcing span of /180.0496
    AS's announcing span of /195105       % AS's announcing span of /190.0664
    AS's announcing span of /207890       % AS's announcing span of /200.1026
    AS's announcing span of /2110310       % AS's announcing span of /210.1341
    AS's announcing span of /2212667       % AS's announcing span of /220.1648
    AS's announcing span of /2310027       % AS's announcing span of /230.1304
    AS's announcing span of /2419248       % AS's announcing span of /240.2503
    AS's announcing span of /251       % AS's announcing span of /250.0000
    AS's announcing span of /263       % 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 /283       % AS's announcing span of /280.0000
    AS's announcing span of /291       % AS's announcing span of /290.0000
    AS's announcing span of /301       % 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.

ÿÿÿÿÿÿÿÿ ÿÿÿÿÿÿÿÿ ÿÿÿÿÿÿÿÿ
AS Connectivity ReportData
AS Adjacency Count180450
Average AS Connectivity Degree (360900/77882)4.6339
Average AS Connectivity IN:OUT Degree0.2641
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 Path590018Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Path578940Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Origin394908Report (sort by %reduction)Report (sort by reduction)BGP Table
    Maximal Aggregation394935Report (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 Thu Aug 28 20:00:00 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