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   AS6447 BGP Routing Table Analysis Report
   
  BGP data obtained from AS6447
Report last updated at Sat Dec 27 02:00:00 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)1070758   Change in FIB Size40   Change (%)0.004
    All BGP entries (RIB)17610582
    RIB/FIB ratio (17610582/1070758)16.4468
      Valid entries17610582
      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)3107219920
    Total address space advertised (prefix length)0.46702279
    Percentage of IPv4 space advertised (3107219920/4294967295)72.345601
    Total address space advertised - corrected to 19 /8s(data)
Average address span 2902
    Average address span (as prefix size)20.4977
Average prefix length22.9637

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 aggregates564997       Specifics as % of FIB entries (564997/1070758)52.7661
    Specifics as % of address span (1130168126/3107219920)36.3723    
    Specifics where AS prepended Path matches aggregate246390         AS-P_Path-Match % (246390/564997)43.61
    AS Path matches aggregate265419         AS-Path-Match % (265419/564997)46.9771
    AS Origin matches aggregate437595         AS-Origin-Match % (437595/564997)77.4509
    Root Prefixes505761
Root Prefix Tree Depth(data)
      Root Prefixes with depth 0447192
      Root Prefixes with depth 147291
      Root Prefixes with depth 29179
      Root Prefixes with depth 31607
      Root Prefixes with depth 4384
      Root Prefixes with depth 573
      Root Prefixes with depth 627
      Root Prefixes with depth 77
      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 ASes78154       ASes visible in only one AS path47974
    Origin only ASes65595         Origin ASs announced via a single AS path46744
    Transit only ASes673       Originating AS ATOM count77481
    Mixed ASes11886         Originating AS ATOM compression0.0724
    Multi-Origin Prefixes5804    
    ASes originating a single prefix26940    
    Average FIB entries per Origin AS13.8196         Maximum entries for an origin AS (AS9009)4013
    Average address range span for an origin AS40102.9920         Maximum address range for an origin AS (AS749)227734016

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 Paths2045678       Unique AS prepended Paths2208298
AS Paths used in FIB124052       AS Paths using prepending590473
    AS paths associated with a single FIB entry58526       AS Paths using private ASs110
    Average AS path length3.8949       Number of Prefixes with Selected AS Prepending Paths124058
      Maximum AS Path length16       Number of Prefixes with AS Prepending Paths124058
    Average address weighted AS path length4.8755       Maximum prepended AS Path length144
    Average entries per AS Path0.5234       Average entries per FIB AS Path8.6315
    AS Paths per origin AS26.4023       FIB AS Paths per origin AS1.6011
      AS PATH ATOM compression0.1159    

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 /1193       % Prefix /110.01
    Prefix count /12300       % Prefix /120.03
    Prefix count /13582       % Prefix /130.05
    Prefix count /141215       % Prefix /140.11
    Prefix count /152135       % Prefix /150.20
    Prefix count /1613803       % Prefix /161.29
    Prefix count /178424       % Prefix /170.79
    Prefix count /1813853       % Prefix /181.29
    Prefix count /1925367       % Prefix /192.37
    Prefix count /2046875       % Prefix /204.38
    Prefix count /2153935       % Prefix /215.04
    Prefix count /22115999       % Prefix /2210.83
    Prefix count /23111352       % Prefix /2310.40
    Prefix count /24674523       % Prefix /2462.99
    Prefix count /25395       % Prefix /250.04
    Prefix count /26562       % Prefix /260.05
    Prefix count /271032       % Prefix /270.10
    Prefix count /2859       % Prefix /280.01
    Prefix count /2990       % Prefix /290.01
    Prefix count /3015       % Prefix /300.00
    Prefix count /314       % Prefix /310.00
    Prefix count /3274       % 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 /1041       % Prefix /100.01
    Prefix count /1188       % Prefix /110.02
    Prefix count /12262       % Prefix /120.05
    Prefix count /13483       % Prefix /130.10
    Prefix count /141029       % Prefix /140.20
    Prefix count /151632       % Prefix /150.32
    Prefix count /1610931       % Prefix /162.16
    Prefix count /174461       % Prefix /170.88
    Prefix count /186989       % Prefix /181.38
    Prefix count /1914882       % Prefix /192.94
    Prefix count /2020438       % Prefix /204.04
    Prefix count /2122845       % Prefix /214.52
    Prefix count /2260229       % Prefix /2211.91
    Prefix count /2344867       % Prefix /238.87
    Prefix count /24316548       % Prefix /2462.59
    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 1155048636       % Addresses at AS distance 13.7
    Addresses at AS distance 22054136297       % Addresses at AS distance 248.5
    Addresses at AS distance 31576041739       % Addresses at AS distance 337.2
    Addresses at AS distance 4365673780       % Addresses at AS distance 48.6
    Addresses at AS distance 569480106       % Addresses at AS distance 51.6
    Addresses at AS distance 68963712       % Addresses at AS distance 60.2
    Addresses at AS distance 77976448       % Addresses at AS distance 70.2
    Addresses at AS distance 862208       % Addresses at AS distance 80.0
    Addresses at AS distance 93328       % Addresses at AS distance 90.0
    Addresses at AS distance 10256       % Addresses at AS distance 100.0
    Addresses at AS distance 11256       % 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 hops155048636       % Addresses reachable within 1 AS hops3
    Addresses reachable within 2 AS hops2209184933       % Addresses reachable within 2 AS hops52
    Addresses reachable within 3 AS hops3785226672       % Addresses reachable within 3 AS hops89
    Addresses reachable within 4 AS hops4150900452       % Addresses reachable within 4 AS hops97
    Addresses reachable within 5 AS hops4220380558       % Addresses reachable within 5 AS hops99
    Addresses reachable within 6 AS hops4229344270       % Addresses reachable within 6 AS hops99
    Addresses reachable within 7 AS hops4237320718       % Addresses reachable within 7 AS hops99
    Addresses reachable within 8 AS hops4237382926       % Addresses reachable within 8 AS hops99
    Addresses reachable within 9 AS hops4237386254       % Addresses reachable within 9 AS hops99
    Addresses reachable within 10 AS hops4237386510       % Addresses reachable within 10 AS hops99
    Addresses reachable within 11 AS hops4237386766       % Addresses reachable within 11 AS hops99
    Addresses reachable within 12 AS hops4237386766       % Addresses reachable within 12 AS hops99
    Addresses reachable within 13 AS hops4237388046       % Addresses reachable within 13 AS hops100
    Addresses reachable within 14 AS hops4237388046       % Addresses reachable within 14 AS hops100
    Addresses reachable within 15 AS hops4237388046       % 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 hops21       % ASes reachable at 1 AS hops0
    ASes reachable at 2 AS hops14354       % ASes reachable at 2 AS hops18
    ASes reachable at 3 AS hops45588       % ASes reachable at 3 AS hops58
    ASes reachable at 4 AS hops14507       % ASes reachable at 4 AS hops18
    ASes reachable at 5 AS hops2902       % ASes reachable at 5 AS hops3
    ASes reachable at 6 AS hops584       % ASes reachable at 6 AS hops0
    ASes reachable at 7 AS hops168       % ASes reachable at 7 AS hops0
    ASes reachable at 8 AS hops11       % ASes reachable at 8 AS hops0
    ASes reachable at 9 AS hops1       % ASes reachable at 9 AS hops0
    ASes reachable at 10 AS hops4       % ASes reachable at 10 AS hops0
    ASes reachable at 11 AS hops5       % 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 hops22       Cumulative % ASes by AS hops 10.0
    ASes reachable by 2 AS hops14376       Cumulative % ASes by AS hops 218.4
    ASes reachable by 3 AS hops59964       Cumulative % ASes by AS hops 376.7
    ASes reachable by 4 AS hops74471       Cumulative % ASes by AS hops 495.3
    ASes reachable by 5 AS hops77373       Cumulative % ASes by AS hops 599.0
    ASes reachable by 6 AS hops77957       Cumulative % ASes by AS hops 699.7
    ASes reachable by 7 AS hops78125       Cumulative % ASes by AS hops 7100.0
    ASes reachable by 8 AS hops78136       Cumulative % ASes by AS hops 8100.0
    ASes reachable by 9 AS hops78137       Cumulative % ASes by AS hops 9100.0
    ASes reachable by 10 AS hops78141       Cumulative % ASes by AS hops 10100.0
    ASes reachable by 11 AS hops78146       Cumulative % ASes by AS hops 11100.0
    ASes reachable by 12 AS hops78150       Cumulative % ASes by AS hops 12100.0
    ASes reachable by 13 AS hops78154       Cumulative % ASes by AS hops 13100.0
    ASes reachable by 14 AS hops78154       Cumulative % ASes by AS hops 14100.0
    ASes reachable by 15 AS hops78154       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 /844       % AS's announcing span of /80.0006
    AS's announcing span of /973       % AS's announcing span of /90.0009
    AS's announcing span of /10103       % AS's announcing span of /100.0013
    AS's announcing span of /11177       % 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 /13402       % 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 /151645       % AS's announcing span of /150.0213
    AS's announcing span of /161780       % AS's announcing span of /160.0230
    AS's announcing span of /172447       % AS's announcing span of /170.0317
    AS's announcing span of /183758       % AS's announcing span of /180.0486
    AS's announcing span of /195144       % AS's announcing span of /190.0666
    AS's announcing span of /207647       % AS's announcing span of /200.0990
    AS's announcing span of /2110451       % AS's announcing span of /210.1353
    AS's announcing span of /2212855       % AS's announcing span of /220.1664
    AS's announcing span of /2310163       % AS's announcing span of /230.1316
    AS's announcing span of /2419432       % AS's announcing span of /240.2516
    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.

ÿÿÿÿÿÿÿÿ ÿÿÿÿÿÿÿÿ ÿÿÿÿÿÿÿÿ
AS Connectivity ReportData
AS Adjacency Count167529
Average AS Connectivity Degree (335058/78154)4.2872
Average AS Connectivity IN:OUT Degree0.2312
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 Path574438Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Path559829Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Origin399430Report (sort by %reduction)Report (sort by reduction)BGP Table
    Maximal Aggregation399461Report (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 Sat Dec 27 02:00:00 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