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Weekly Routing Table Report

  • From: Routing Table Analysis
  • Date: Fri Dec 16 13:09:15 2005

This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats@lists.apnic.net

If you have any comments please contact Philip Smith <pfs@cisco.com>.

Routing Table Report   04:00 +10GMT Sat 17 Dec, 2005

Analysis Summary
----------------

BGP routing table entries examined:                              176367
    Prefixes after maximum aggregation:                           99478
    Unique aggregates announced to Internet:                      85692
Total ASes present in the Internet Routing Table:                 21152
Origin-only ASes present in the Internet Routing Table:           18402
Origin ASes announcing only one prefix:                            8710
Transit ASes present in the Internet Routing Table:                2750
Transit-only ASes present in the Internet Routing Table:             76
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      22
Prefixes from unregistered ASNs in the Routing Table:                 9
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1491013440
    Equivalent to 88 /8s, 223 /16s and 15 /24s
    Percentage of available address space announced:               40.2
    Percentage of allocated address space announced:               60.6
    Percentage of available address space allocated:               66.4
Total number of prefixes smaller than registry allocations:       84589

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes:                    36929
    Total APNIC prefixes after maximum aggregation:               15734
Prefixes being announced from the APNIC address blocks:           34682
    Unique aggregates announced from the APNIC address blocks:    17032
APNIC Region origin ASes present in the Internet Routing Table:    2435
APNIC Region origin ASes announcing only one prefix:                699
APNIC Region transit ASes present in the Internet Routing Table:    372
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         17
Number of APNIC addresses announced to Internet:              208551360
    Equivalent to 12 /8s, 110 /16s and 61 /24s
    Percentage of available APNIC address space announced:         77.4

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911
APNIC Address Blocks   58/7, 60/7, 124/7, 126/8, 202/7, 210/7, 218/7,
                       220/7 and 222/8

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                     92989
    Total ARIN prefixes after maximum aggregation:                56109
Prefixes being announced from the ARIN address blocks:            72484
    Unique aggregates announced from the ARIN address blocks:     27657
ARIN Region origin ASes present in the Internet Routing Table:    10397
ARIN Region origin ASes announcing only one prefix:                3864
ARIN Region transit ASes present in the Internet Routing Table:     963
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               280523008
    Equivalent to 16 /8s, 184 /16s and 113 /24s
    Percentage of available ARIN address space announced:          69.7

ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  2138-2584, 2615-2772, 2823-2829, 2880-3153
                       3354-4607, 4865-5119, 5632-6655, 6912-7466
                       7723-8191, 10240-12287, 13312-15359, 16384-17407
                       18432-20479, 21504-23551, 25600-26591,
                       26624-27647, 29696-30719, 31744-33791
                       35840-36863
ARIN Address Blocks    24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
                       198/7, 204/6, 208/7 and 216/8

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                     34652
    Total RIPE prefixes after maximum aggregation:                23457
Prefixes being announced from the RIPE address blocks:            31660
    Unique aggregates announced from the RIPE address blocks:     21281
RIPE Region origin ASes present in the Internet Routing Table:     7439
RIPE Region origin ASes announcing only one prefix:                3890
RIPE Region transit ASes present in the Internet Routing Table:    1228
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          22
Number of RIPE addresses announced to Internet:               228195904
    Equivalent to 13 /8s, 153 /16s and 254 /24s
    Percentage of available RIPE address space announced:          68.0

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
RIPE Address Blocks    62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
                       and 217/8

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                    9949
    Total LACNIC prefixes after maximum aggregation:               3320
Prefixes being announced from the LACNIC address blocks:           8296
    Unique aggregates announced from the LACNIC address blocks:    4783
LACNIC Region origin ASes present in the Internet Routing Table:    657
LACNIC Region origin ASes announcing only one prefix:               209
LACNIC Region transit ASes present in the Internet Routing Table:   124
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        22
Number of LACNIC addresses announced to Internet:              23115264
    Equivalent to 1 /8s, 96 /16s and 182 /24s
    Percentage of available LACNIC address space announced:        34.4

LACNIC AS Blocks       26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks  189/8, 190/8, 200/7

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes:                   1842
    Total AfriNIC prefixes after maximum aggregation:               858
Prefixes being announced from the AfriNIC address blocks:          1177
    Unique aggregates announced from the AfriNIC address blocks:    831
AfriNIC Region origin ASes present in the Internet Routing Table:   147
AfriNIC Region origin ASes announcing only one prefix:               48
AfriNIC Region transit ASes present in the Internet Routing Table:   25
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       12
Number of AfriNIC addresses announced to Internet:              2899712
    Equivalent to 0 /8s, 44 /16s and 63 /24s
    Percentage of available AfriNIC address space announced:        8.6

AfriNIC AS Blocks      36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8

APNIC Region per AS prefix count summary
----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4134     1013       6467         205   CHINANET-BACKBONE
 9583      842         77          12   Sify Limited
 4755      753        259          71   Videsh Sanchar Nigam Ltd. Aut
 1221      663       1374         477   Telstra Pty Ltd
 4766      653       3927         287   Korea Telecom (KIX)
 7545      511        108          71   TPG Internet Pty Ltd
17676      472       6836         102   Softbank BB Corp.
17488      430         26          11   Hathway IP Over Cable Interne
 9498      424        212          66   BHARTI BT INTERNET LTD.
 9443      400         88          85   Primus Telecommunications
 4802      347         74         159   Wantree Development
 2907      341       1764         318   SINET Japan
 9929      331        217          49   China Netcom Corp.
 7474      326        226         225   SingTel Optus Pty Ltd
17557      309         24         161   Pakistan Telecom
17974      283         68          19   PT TELEKOMUNIKASI INDONESIA
 4780      282        226          16   Digital United Inc.
18101      281         68          19   Reliance Infocom Ltd Internet
 9837      273         78         172   Powertel Ltd
 9800      255        410          67   CHINA UNICOM

ARIN Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1459       6302         964   AT&T WorldNet Services
 4323     1193        722         234   Time Warner Telecom
  174     1061       5827         974   Cogent Communications
  721     1031      21922         308   DLA Systems Automation Center
  701      979       8118         821   UUNET Technologies, Inc. 
 6197      970        434         505   BellSouth Network Solutions, 
 2386      913        517         687   AT&T Data Communications Serv
18566      886        240           7   Covad Communications 
 1239      845       2804         599   Sprint 
20115      660        536         344   Charter Communications 
  209      658       3622         525   Qwest 
11492      634         89          11   Cable One 
22773      592       1477          29   Cox Communications, Inc.
  852      572       1092         380   Telus Advanced Communications
19262      568       1611         157   Verizon Global Networks 
19916      563         49          54   OLM LLC 
  855      562        243          65   Canadian Research Network 
 3602      535        127         106   Sprint Canada, Inc. 
 3356      526      10617         404   Level 3 Communications, LLC 
 6478      516       1435         283   AT&T Worldnet Services 

RIPE Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      595       1958         473   UUNET - Commercial IP service
 3301      303       1071         289   TeliaNet Sweden
 3320      287       3487         241   Deutsche Telekom AG
 8220      270        474         265   COLT Telecommunications
  680      245       2040         239   DFN-IP service G-WiN
 3246      229        486         221   Song Networks
 8708      228        274         212   Romania Data Systems S.A.
 6746      202         51         173   Dynamic Network Technologies,
 1257      189        712         170   SWIPnet Swedish IP Network
 3269      182       1829          68   TELECOM ITALIA
 5515      180        840         127   Sonera Solution Autonomous Sy
  786      173       1794         173   The JANET IP Service
 5400      168        333         137   BT Ignite European Backbone
 8866      167         37          11   Bulgarian Telecommunication C
 6830      162        669          33   UPC Distribution Services
 3215      161       1325          81   France Telecom Transpac
 3300      160        169          93   AUCS Communications Services 
24863      160         38           9   LINKdotNET AS number
12479      156        322           5   Uni2 Autonomous System
25186      147        211         103   France Telecom Transpac's Tra

LACNIC Region per AS prefix count summary
-----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      393        739         170   UniNet S.A. de C.V. 
22047      380        141          43   VTR PUNTO NET S.A. 
16814      295         18           7   NSS, S.A. 
11172      294        106          76   Servicios Alestra S.A de C.V 
14117      184         11           6   Telefonica del Sur S.A. 
13999      175         52           9   Mega Cable S.A. de C.V. 
 7303      153         73          18   Telecom Argentina Stet-France
 6147      150        118          21   Telefonica Del Peru 
11664      142         22          13   Keytech SA 
11556      130         64           3   Cable-Wireless Panama 
19169      127          8          20   Telconet 
10481      121         48           8   Prima S.A. 
 6503      118        148          78   AVANTEL, S.A. 
18822      114          8          11   TELEFONICA MANQUEHUE 
 5639      112         12           9   Telecommunications Services o
21826      112         14          18   INTERCABLE 
 6505      106         88          79   Global One Communicaoes Ltda 
11311       99          8          10   Sinectis S.A. 
 4270       94         17           9   Red de Interconexion Universi
14522       94         12           8   SatNet S.A. 

AfriNIC Region per AS prefix count summary
------------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      272        812         230   The Internet Solution 
 8452      146         44           7   TEDATA
 5536      122          8          16   Internet Egypt Network
 2018      117        298         103   Tertiary Education Network 
15475      103         84           4   Nile Online
 2905       74        155          67   The Internetworking Company o
 6713       69         71          10   Itissalat Al-MAGHRIB
24835       64         34           6   RAYA Telecom - Egypt
20928       61         16           2   Noor Advanced Technologies AS
 5713       38        151          34   Telkom SA Ltd 
33774       33          4          24   AS Number for Telecom Algeria
15706       31          8           3   Sudatel Internet Exchange Aut
23889       26          7          11   MAURITIUS TELECOM
 8524       23          1           4   AUCEGYPT Autonomous System
16637       23         10          21   Johnnic e-Ventures 
21280       23          4           4   Swift Global Kenya Ltd.Is an 
10798       22          1          13   Standard Bank of South Africa
12455       18          6           5   Jambonet Autonomous system
12258       17          3          11   Vodacom Internet Company 
15808       17          2           2   Communication Solutions Ltd i

Global Per AS Maximum Aggr summary
----------------------------------

  ASN   No of nets  Net Savings Description
 4323      1193         959      Time Warner Telecom
18566       886         879      Covad Communications 
 9583       842         830      Sify Limited
 4134      1013         808      CHINANET-BACKBONE
  721      1031         723      DLA Systems Automation Center
 4755       753         682      Videsh Sanchar Nigam Ltd. Aut
11492       634         623      Cable One 
22773       592         563      Cox Communications, Inc.
19916       563         509      OLM LLC 
  855       562         497      Canadian Research Network 
 6197       970         465      BellSouth Network Solutions, 
 5668       475         447      CenturyTel Internet Holdings,
 7545       511         440      TPG Internet Pty Ltd
 3602       535         429      Sprint Canada, Inc. 
17488       430         419      Hathway IP Over Cable Interne
19262       568         411      Verizon Global Networks 
17676       472         370      Softbank BB Corp.
 4766       653         366      Korea Telecom (KIX)
 6467       407         361      E.Spire Communications, Inc. 
 9498       424         358      BHARTI BT INTERNET LTD.

List of Unregistered ASNs (Global)
----------------------------------

Bad AS  Designation  Network              Transit AS  Description
38976   UNALLOCATED   62.192.224.0/19      21166       Satgate autonomous s
38976   UNALLOCATED   62.192.232.0/24      21166       Satgate autonomous s
38972   UNALLOCATED   80.251.144.0/21      28947       CJSC InT, Ekaterinbu
38972   UNALLOCATED   80.251.151.0/24      28947       CJSC InT, Ekaterinbu
24413   UNALLOCATED   202.46.32.0/19       17623       China Netcom Corp.
24408   UNALLOCATED   203.119.26.0/24       9800       CHINA UNICOM
24408   UNALLOCATED   203.119.27.0/24       9800       CHINA UNICOM
24408   UNALLOCATED   203.119.28.0/24       9800       CHINA UNICOM
24406   UNALLOCATED   203.119.29.0/24       4808       CNCGROUP IP network:

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
132.0.0.0/10           721     DLA Systems Automation Center
137.0.0.0/13           721     DLA Systems Automation Center
158.0.0.0/13           721     DLA Systems Automation Center
192.43.230.0/24       7575     Australian Academic and Rease
192.44.0.0/24         5501     Fraunhofer Gesellschaft
192.44.0.0/19          702     UUNET - Commercial IP service
192.70.164.0/24      25689     National Research Council of 
192.72.0.0/18         4780     Digital United Inc.
192.72.0.0/16         4780     Digital United Inc.
192.84.205.0/24        719     LANLINK autonomous system
192.119.135.0/24       270     NASA 
192.172.0.0/19         721     DLA Systems Automation Center

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:19       /9:5       /10:8       /11:20      /12:85      
/13:192     /14:343     /15:670     /16:8626    /17:2922    /18:4926    
/19:11122   /20:12238   /21:10328   /22:13516   /23:14672   /24:95824   
/25:328     /26:219     /27:199     /28:28      /29:12      /30:31      
/31:3       /32:31      

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

  ASN   No of nets  Total ann.   Description
18566      870           886      Covad Communications 
 6197      784           970      BellSouth Network Solutions, 
 7018      719          1459      AT&T WorldNet Services
 9583      662           842      Sify Limited
 2386      634           913      AT&T Data Communications Serv
11492      625           634      Cable One 
 4323      570          1193      Time Warner Telecom
19916      557           563      OLM LLC 
 4766      458           653      Korea Telecom (KIX)
  855      434           562      Canadian Research Network 
 7011      404           468      Citizens Utilities 
  702      377           595      UUNET - Commercial IP service
 5668      367           475      CenturyTel Internet Holdings,
 1239      365           845      Sprint 
 6198      355           497      BellSouth Network Solutions, 
 6517      326           351      Yipes Communications, Inc. 
15270      325           352      PaeTec.net -a division of Pae
22773      306           592      Cox Communications, Inc.
13609      298           340      Choice One Communications Inc
  701      284           979      UUNET Technologies, Inc. 

Number of /24s announced per /8 block (Global)
----------------------------------------------

   4:3         8:40       11:1        12:1623     13:2        15:11     
  16:3        17:3        18:3        20:43       24:710      25:1      
  30:2        32:69       38:189      40:54       44:3        47:3      
  52:4        55:1        56:3        57:33       58:101      59:112    
  60:167      61:762      62:803      63:1892     64:2937     65:2133   
  66:2885     67:601      68:691      69:1321     70:252      71:39     
  72:490      73:9        80:681      81:596      82:507      83:343    
  84:340      85:392      86:232      87:122     125:137     128:140    
 129:167     130:101     131:304     132:34      133:1       134:152    
 135:45      136:169     137:62      138:177     139:91      140:342    
 141:139     142:404     143:146     144:222     145:39      146:306    
 147:135     148:272     149:191     150:109     151:70      152:115    
 153:96      154:5       155:181     156:90      157:119     158:150    
 159:175     160:87      161:74      162:242     163:175     164:183    
 165:181     166:146     167:240     168:422     169:143     170:312    
 171:12      192:5722    193:3346    194:2450    195:1688    196:710    
 198:3900    199:3266    200:4306    201:477     202:6341    203:6626   
 204:3821    205:2109    206:2405    207:2938    208:2021    209:3421   
 210:1828    211:778     212:1256    213:1382    214:315     215:40     
 216:3796    217:1174    218:223     219:129     220:578     221:334    
 222:129    

End of report




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