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   AS6447 BGP Routing Table Analysis Report
   
  BGP data obtained from AS6447
Report last updated at Sun Jun 7 10:00:00 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)1096873   Change in FIB Size7   Change (%)0.001
    All BGP entries (RIB)18069179
    RIB/FIB ratio (18069179/1096873)16.4734
      Valid entries18069179
      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)3105713008
    Total address space advertised (prefix length)0.46772263
    Percentage of IPv4 space advertised (3105713008/4294967295)72.310516
    Total address space advertised - corrected to 19 /8s(data)
Average address span 2831
    Average address span (as prefix size)20.5329
Average prefix length22.9803

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 aggregates576031       Specifics as % of FIB entries (576031/1096873)52.5157
    Specifics as % of address span (1133948001/3105713008)36.5117    
    Specifics where AS prepended Path matches aggregate232445         AS-P_Path-Match % (232445/576031)40.35
    AS Path matches aggregate251257         AS-Path-Match % (251257/576031)43.6187
    AS Origin matches aggregate444324         AS-Origin-Match % (444324/576031)77.1354
    Root Prefixes520842
Root Prefix Tree Depth(data)
      Root Prefixes with depth 0461602
      Root Prefixes with depth 147933
      Root Prefixes with depth 29203
      Root Prefixes with depth 31591
      Root Prefixes with depth 4405
      Root Prefixes with depth 574
      Root Prefixes with depth 627
      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 ASes79119       ASes visible in only one AS path46311
    Origin only ASes66505         Origin ASs announced via a single AS path45227
    Transit only ASes689       Originating AS ATOM count78430
    Mixed ASes11925         Originating AS ATOM compression0.0715
    Multi-Origin Prefixes4943    
    ASes originating a single prefix27302    
    Average FIB entries per Origin AS13.9854         Maximum entries for an origin AS (AS137409)460
    Average address range span for an origin AS39598.5338         Maximum address range for an origin AS (AS749)227729152

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 Paths2070133       Unique AS prepended Paths2234550
AS Paths used in FIB137552       AS Paths using prepending597015
    AS paths associated with a single FIB entry67430       AS Paths using private ASs162
    Average AS path length3.8894       Number of Prefixes with Selected AS Prepending Paths126100
      Maximum AS Path length16       Number of Prefixes with AS Prepending Paths126100
    Average address weighted AS path length4.8640       Maximum prepended AS Path length259
    Average entries per AS Path0.5299       Average entries per FIB AS Path7.9742
    AS Paths per origin AS26.3947       FIB AS Paths per origin AS1.7538
      AS PATH ATOM compression0.1254    

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 /1039       % Prefix /100.00
    Prefix count /1195       % Prefix /110.01
    Prefix count /12299       % Prefix /120.03
    Prefix count /13584       % Prefix /130.05
    Prefix count /141200       % Prefix /140.11
    Prefix count /152147       % Prefix /150.20
    Prefix count /1613708       % Prefix /161.25
    Prefix count /178492       % Prefix /170.77
    Prefix count /1813628       % Prefix /181.24
    Prefix count /1926002       % Prefix /192.37
    Prefix count /2047766       % Prefix /204.35
    Prefix count /2154184       % Prefix /214.94
    Prefix count /22116297       % Prefix /2210.60
    Prefix count /23113733       % Prefix /2310.37
    Prefix count /24696521       % Prefix /2463.50
    Prefix count /25362       % Prefix /250.03
    Prefix count /26548       % Prefix /260.05
    Prefix count /27991       % Prefix /270.09
    Prefix count /2858       % Prefix /280.01
    Prefix count /2989       % Prefix /290.01
    Prefix count /3011       % Prefix /300.00
    Prefix count /314       % Prefix /310.00
    Prefix count /3285       % Prefix /320.01

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 /1039       % Prefix /100.01
    Prefix count /1190       % Prefix /110.02
    Prefix count /12264       % Prefix /120.05
    Prefix count /13484       % Prefix /130.09
    Prefix count /141013       % Prefix /140.19
    Prefix count /151624       % Prefix /150.31
    Prefix count /1610824       % Prefix /162.08
    Prefix count /174522       % Prefix /170.87
    Prefix count /187179       % Prefix /181.38
    Prefix count /1914938       % Prefix /192.87
    Prefix count /2020987       % Prefix /204.03
    Prefix count /2122887       % Prefix /214.39
    Prefix count /2260740       % Prefix /2211.66
    Prefix count /2346275       % Prefix /238.88
    Prefix count /24328937       % Prefix /2463.15
    Prefix count /256       % Prefix /250.00
    Prefix count /264       % Prefix /260.00
    Prefix count /273       % 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 1154383839       % Addresses at AS distance 13.6
    Addresses at AS distance 22078816715       % Addresses at AS distance 249.0
    Addresses at AS distance 31578147087       % Addresses at AS distance 337.2
    Addresses at AS distance 4344051952       % Addresses at AS distance 48.1
    Addresses at AS distance 568699048       % Addresses at AS distance 51.6
    Addresses at AS distance 68577152       % Addresses at AS distance 60.2
    Addresses at AS distance 76901504       % Addresses at AS distance 70.2
    Addresses at AS distance 878592       % Addresses at AS distance 80.0
    Addresses at AS distance 93072       % Addresses at AS distance 90.0
    Addresses at AS distance 10768       % 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 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 hops154383839       % Addresses reachable within 1 AS hops3
    Addresses reachable within 2 AS hops2233200554       % Addresses reachable within 2 AS hops52
    Addresses reachable within 3 AS hops3811347641       % Addresses reachable within 3 AS hops89
    Addresses reachable within 4 AS hops4155399593       % Addresses reachable within 4 AS hops98
    Addresses reachable within 5 AS hops4224098641       % Addresses reachable within 5 AS hops99
    Addresses reachable within 6 AS hops4232675793       % Addresses reachable within 6 AS hops99
    Addresses reachable within 7 AS hops4239577297       % Addresses reachable within 7 AS hops99
    Addresses reachable within 8 AS hops4239655889       % Addresses reachable within 8 AS hops99
    Addresses reachable within 9 AS hops4239658961       % Addresses reachable within 9 AS hops99
    Addresses reachable within 10 AS hops4239659729       % Addresses reachable within 10 AS hops99
    Addresses reachable within 11 AS hops4239659729       % Addresses reachable within 11 AS hops99
    Addresses reachable within 12 AS hops4239659729       % Addresses reachable within 12 AS hops99
    Addresses reachable within 13 AS hops4239661009       % Addresses reachable within 13 AS hops100
    Addresses reachable within 14 AS hops4239661009       % Addresses reachable within 14 AS hops100
    Addresses reachable within 15 AS hops4239661009       % 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 hops14386       % ASes reachable at 2 AS hops18
    ASes reachable at 3 AS hops46576       % ASes reachable at 3 AS hops58
    ASes reachable at 4 AS hops14653       % ASes reachable at 4 AS hops18
    ASes reachable at 5 AS hops2743       % ASes reachable at 5 AS hops3
    ASes reachable at 6 AS hops562       % ASes reachable at 6 AS hops0
    ASes reachable at 7 AS hops146       % ASes reachable at 7 AS hops0
    ASes reachable at 8 AS hops12       % ASes reachable at 8 AS hops0
    ASes reachable at 9 AS hops3       % ASes reachable at 9 AS hops0
    ASes reachable at 10 AS hops5       % 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 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 hops14407       Cumulative % ASes by AS hops 218.2
    ASes reachable by 3 AS hops60983       Cumulative % ASes by AS hops 377.1
    ASes reachable by 4 AS hops75636       Cumulative % ASes by AS hops 495.6
    ASes reachable by 5 AS hops78379       Cumulative % ASes by AS hops 599.1
    ASes reachable by 6 AS hops78941       Cumulative % ASes by AS hops 699.8
    ASes reachable by 7 AS hops79087       Cumulative % ASes by AS hops 7100.0
    ASes reachable by 8 AS hops79099       Cumulative % ASes by AS hops 8100.0
    ASes reachable by 9 AS hops79102       Cumulative % ASes by AS hops 9100.0
    ASes reachable by 10 AS hops79107       Cumulative % ASes by AS hops 10100.0
    ASes reachable by 11 AS hops79111       Cumulative % ASes by AS hops 11100.0
    ASes reachable by 12 AS hops79115       Cumulative % ASes by AS hops 12100.0
    ASes reachable by 13 AS hops79119       Cumulative % ASes by AS hops 13100.0
    ASes reachable by 14 AS hops79119       Cumulative % ASes by AS hops 14100.0
    ASes reachable by 15 AS hops79119       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 /975       % AS's announcing span of /90.0010
    AS's announcing span of /10102       % 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 /12245       % AS's announcing span of /120.0031
    AS's announcing span of /13391       % AS's announcing span of /130.0050
    AS's announcing span of /14853       % AS's announcing span of /140.0109
    AS's announcing span of /151637       % AS's announcing span of /150.0209
    AS's announcing span of /161759       % AS's announcing span of /160.0225
    AS's announcing span of /172462       % AS's announcing span of /170.0315
    AS's announcing span of /183819       % AS's announcing span of /180.0488
    AS's announcing span of /195136       % AS's announcing span of /190.0657
    AS's announcing span of /207773       % AS's announcing span of /200.0994
    AS's announcing span of /2110484       % AS's announcing span of /210.1340
    AS's announcing span of /2212876       % AS's announcing span of /220.1646
    AS's announcing span of /2310435       % AS's announcing span of /230.1334
    AS's announcing span of /2419906       % AS's announcing span of /240.2545
    AS's announcing span of /251       % AS's announcing span of /250.0000
    AS's announcing span of /261       % AS's announcing span of /260.0000
    AS's announcing span of /273       % 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.

AS Connectivity ReportData
AS Adjacency Count168343
Average AS Connectivity Degree (336686/79119)4.2554
Average AS Connectivity IN:OUT Degree0.2297
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 Path616614Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Path602650Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Origin410935Report (sort by %reduction)Report (sort by reduction)BGP Table
    Maximal Aggregation410954Report (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 Sun Jun 7 10:00:00 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