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   AS6447 BGP Routing Table Analysis Report
   
  BGP data obtained from AS6447
Report last updated at Sun May 17 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)1093427   Change in FIB Size-115   Change (%)-0.011
    All BGP entries (RIB)17975737
    RIB/FIB ratio (17975737/1093427)16.4398
      Valid entries17975737
      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)3104932976
    Total address space advertised (prefix length)0.46808502
    Percentage of IPv4 space advertised (3104932976/4294967295)72.292354
    Total address space advertised - corrected to 19 /8s(data)
Average address span 2840
    Average address span (as prefix size)20.5288
Average prefix length22.9777

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 aggregates576534       Specifics as % of FIB entries (576534/1093427)52.7273
    Specifics as % of address span (1132731726/3104932976)36.4817    
    Specifics where AS prepended Path matches aggregate235626         AS-P_Path-Match % (235626/576534)40.87
    AS Path matches aggregate255643         AS-Path-Match % (255643/576534)44.3414
    AS Origin matches aggregate446181         AS-Origin-Match % (446181/576534)77.3902
    Root Prefixes516893
Root Prefix Tree Depth(data)
      Root Prefixes with depth 0457620
      Root Prefixes with depth 147911
      Root Prefixes with depth 29240
      Root Prefixes with depth 31603
      Root Prefixes with depth 4409
      Root Prefixes with depth 577
      Root Prefixes with depth 626
      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 ASes78945       ASes visible in only one AS path46564
    Origin only ASes66380         Origin ASs announced via a single AS path45419
    Transit only ASes691       Originating AS ATOM count78254
    Mixed ASes11874         Originating AS ATOM compression0.0716
    Multi-Origin Prefixes5244    
    ASes originating a single prefix27252    
    Average FIB entries per Origin AS13.9728         Maximum entries for an origin AS (AS137409)451
    Average address range span for an origin AS39677.6264         Maximum address range for an origin AS (AS749)227730688

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 Paths2058609       Unique AS prepended Paths2222708
AS Paths used in FIB135308       AS Paths using prepending588320
    AS paths associated with a single FIB entry65791       AS Paths using private ASs167
    Average AS path length3.8916       Number of Prefixes with Selected AS Prepending Paths128354
      Maximum AS Path length16       Number of Prefixes with AS Prepending Paths128354
    Average address weighted AS path length4.8597       Maximum prepended AS Path length259
    Average entries per AS Path0.5311       Average entries per FIB AS Path8.0810
    AS Paths per origin AS26.3068       FIB AS Paths per origin AS1.7291
      AS PATH ATOM compression0.1237    

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 /12298       % Prefix /120.03
    Prefix count /13583       % Prefix /130.05
    Prefix count /141200       % Prefix /140.11
    Prefix count /152144       % Prefix /150.20
    Prefix count /1613721       % Prefix /161.25
    Prefix count /178500       % Prefix /170.78
    Prefix count /1813628       % Prefix /181.25
    Prefix count /1926012       % Prefix /192.38
    Prefix count /2047773       % Prefix /204.37
    Prefix count /2154135       % Prefix /214.95
    Prefix count /22116021       % Prefix /2210.61
    Prefix count /23113478       % Prefix /2310.38
    Prefix count /24693625       % Prefix /2463.44
    Prefix count /25361       % Prefix /250.03
    Prefix count /26549       % Prefix /260.05
    Prefix count /27993       % Prefix /270.09
    Prefix count /2858       % Prefix /280.01
    Prefix count /2987       % Prefix /290.01
    Prefix count /3011       % Prefix /300.00
    Prefix count /314       % Prefix /310.00
    Prefix count /3282       % 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 /13485       % Prefix /130.09
    Prefix count /141014       % Prefix /140.20
    Prefix count /151624       % Prefix /150.31
    Prefix count /1610833       % Prefix /162.10
    Prefix count /174513       % Prefix /170.87
    Prefix count /187170       % Prefix /181.39
    Prefix count /1914910       % Prefix /192.88
    Prefix count /2020897       % Prefix /204.04
    Prefix count /2122856       % Prefix /214.42
    Prefix count /2260679       % Prefix /2211.74
    Prefix count /2346140       % Prefix /238.93
    Prefix count /24325340       % Prefix /2462.94
    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 1154305119       % Addresses at AS distance 13.6
    Addresses at AS distance 22106279067       % Addresses at AS distance 249.7
    Addresses at AS distance 31533236652       % Addresses at AS distance 336.2
    Addresses at AS distance 4356977392       % Addresses at AS distance 48.4
    Addresses at AS distance 571252904       % Addresses at AS distance 51.7
    Addresses at AS distance 68736384       % Addresses at AS distance 60.2
    Addresses at AS distance 76797824       % Addresses at AS distance 70.2
    Addresses at AS distance 873472       % Addresses at AS distance 80.0
    Addresses at AS distance 93328       % Addresses at AS distance 90.0
    Addresses at AS distance 101280       % 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 hops154305119       % Addresses reachable within 1 AS hops3
    Addresses reachable within 2 AS hops2260584186       % Addresses reachable within 2 AS hops53
    Addresses reachable within 3 AS hops3793820838       % Addresses reachable within 3 AS hops89
    Addresses reachable within 4 AS hops4150798230       % Addresses reachable within 4 AS hops97
    Addresses reachable within 5 AS hops4222051134       % Addresses reachable within 5 AS hops99
    Addresses reachable within 6 AS hops4230787518       % Addresses reachable within 6 AS hops99
    Addresses reachable within 7 AS hops4237585342       % Addresses reachable within 7 AS hops99
    Addresses reachable within 8 AS hops4237658814       % Addresses reachable within 8 AS hops99
    Addresses reachable within 9 AS hops4237662142       % Addresses reachable within 9 AS hops99
    Addresses reachable within 10 AS hops4237663422       % Addresses reachable within 10 AS hops99
    Addresses reachable within 11 AS hops4237663422       % Addresses reachable within 11 AS hops99
    Addresses reachable within 12 AS hops4237663422       % Addresses reachable within 12 AS hops99
    Addresses reachable within 13 AS hops4237664702       % Addresses reachable within 13 AS hops100
    Addresses reachable within 14 AS hops4237664702       % Addresses reachable within 14 AS hops100
    Addresses reachable within 15 AS hops4237664702       % 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 hops14353       % ASes reachable at 2 AS hops18
    ASes reachable at 3 AS hops46687       % ASes reachable at 3 AS hops59
    ASes reachable at 4 AS hops14406       % ASes reachable at 4 AS hops18
    ASes reachable at 5 AS hops2745       % ASes reachable at 5 AS hops3
    ASes reachable at 6 AS hops548       % ASes reachable at 6 AS hops0
    ASes reachable at 7 AS hops154       % ASes reachable at 7 AS hops0
    ASes reachable at 8 AS hops13       % ASes reachable at 8 AS hops0
    ASes reachable at 9 AS hops1       % 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 hops14374       Cumulative % ASes by AS hops 218.2
    ASes reachable by 3 AS hops61061       Cumulative % ASes by AS hops 377.3
    ASes reachable by 4 AS hops75467       Cumulative % ASes by AS hops 495.6
    ASes reachable by 5 AS hops78212       Cumulative % ASes by AS hops 599.1
    ASes reachable by 6 AS hops78760       Cumulative % ASes by AS hops 699.8
    ASes reachable by 7 AS hops78914       Cumulative % ASes by AS hops 7100.0
    ASes reachable by 8 AS hops78927       Cumulative % ASes by AS hops 8100.0
    ASes reachable by 9 AS hops78928       Cumulative % ASes by AS hops 9100.0
    ASes reachable by 10 AS hops78933       Cumulative % ASes by AS hops 10100.0
    ASes reachable by 11 AS hops78937       Cumulative % ASes by AS hops 11100.0
    ASes reachable by 12 AS hops78941       Cumulative % ASes by AS hops 12100.0
    ASes reachable by 13 AS hops78945       Cumulative % ASes by AS hops 13100.0
    ASes reachable by 14 AS hops78945       Cumulative % ASes by AS hops 14100.0
    ASes reachable by 15 AS hops78945       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 /976       % AS's announcing span of /90.0010
    AS's announcing span of /10103       % AS's announcing span of /100.0013
    AS's announcing span of /11174       % AS's announcing span of /110.0022
    AS's announcing span of /12243       % AS's announcing span of /120.0031
    AS's announcing span of /13395       % AS's announcing span of /130.0051
    AS's announcing span of /14856       % AS's announcing span of /140.0110
    AS's announcing span of /151642       % AS's announcing span of /150.0210
    AS's announcing span of /161741       % AS's announcing span of /160.0223
    AS's announcing span of /172466       % AS's announcing span of /170.0316
    AS's announcing span of /183802       % AS's announcing span of /180.0487
    AS's announcing span of /195160       % AS's announcing span of /190.0661
    AS's announcing span of /207731       % AS's announcing span of /200.0991
    AS's announcing span of /2110467       % AS's announcing span of /210.1341
    AS's announcing span of /2212867       % AS's announcing span of /220.1649
    AS's announcing span of /2310378       % AS's announcing span of /230.1330
    AS's announcing span of /2419851       % AS's announcing span of /240.2544
    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.

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AS Connectivity ReportData
AS Adjacency Count168052
Average AS Connectivity Degree (336104/78945)4.2574
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 Path609431Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Path595261Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Origin407097Report (sort by %reduction)Report (sort by reduction)BGP Table
    Maximal Aggregation407110Report (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 May 17 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