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Weekly Routing Table Report

  • From: Routing Table Analysis
  • Date: Fri Dec 30 13:30:22 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 31 Dec, 2005

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

BGP routing table entries examined:                              177268
    Prefixes after maximum aggregation:                           99779
    Unique aggregates announced to Internet:                      85978
Total ASes present in the Internet Routing Table:                 21258
Origin-only ASes present in the Internet Routing Table:           18495
Origin ASes announcing only one prefix:                            8769
Transit ASes present in the Internet Routing Table:                2763
Transit-only ASes present in the Internet Routing Table:             75
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      25
Prefixes from unregistered ASNs in the Routing Table:                11
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1475663296
    Equivalent to 87 /8s, 244 /16s and 213 /24s
    Percentage of available address space announced:               39.8
    Percentage of allocated address space announced:               59.9
    Percentage of available address space allocated:               66.4
Total number of prefixes smaller than registry allocations:       85308

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

Prefixes being announced by APNIC Region ASes:                    37247
    Total APNIC prefixes after maximum aggregation:               15811
Prefixes being announced from the APNIC address blocks:           35007
    Unique aggregates announced from the APNIC address blocks:    17106
APNIC Region origin ASes present in the Internet Routing Table:    2457
APNIC Region origin ASes announcing only one prefix:                701
APNIC Region transit ASes present in the Internet Routing Table:    378
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         17
Number of APNIC addresses announced to Internet:              208850112
    Equivalent to 12 /8s, 114 /16s and 204 /24s
    Percentage of available APNIC address space announced:         77.5

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:                     93198
    Total ARIN prefixes after maximum aggregation:                56125
Prefixes being announced from the ARIN address blocks:            72613
    Unique aggregates announced from the ARIN address blocks:     27837
ARIN Region origin ASes present in the Internet Routing Table:    10406
ARIN Region origin ASes announcing only one prefix:                3870
ARIN Region transit ASes present in the Internet Routing Table:     958
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               281106432
    Equivalent to 16 /8s, 193 /16s and 88 /24s
    Percentage of available ARIN address space announced:          69.8

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:                     34806
    Total RIPE prefixes after maximum aggregation:                23596
Prefixes being announced from the RIPE address blocks:            31797
    Unique aggregates announced from the RIPE address blocks:     21347
RIPE Region origin ASes present in the Internet Routing Table:     7512
RIPE Region origin ASes announcing only one prefix:                3939
RIPE Region transit ASes present in the Internet Routing Table:    1237
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          25
Number of RIPE addresses announced to Internet:               228704320
    Equivalent to 13 /8s, 161 /16s and 192 /24s
    Percentage of available RIPE address space announced:          68.2

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:                   10170
    Total LACNIC prefixes after maximum aggregation:               3388
Prefixes being announced from the LACNIC address blocks:           8404
    Unique aggregates announced from the LACNIC address blocks:    4765
LACNIC Region origin ASes present in the Internet Routing Table:    661
LACNIC Region origin ASes announcing only one prefix:               211
LACNIC Region transit ASes present in the Internet Routing Table:   123
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        22
Number of LACNIC addresses announced to Internet:              23347968
    Equivalent to 1 /8s, 100 /16s and 67 /24s
    Percentage of available LACNIC address space announced:        34.8

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:                   1841
    Total AfriNIC prefixes after maximum aggregation:               859
Prefixes being announced from the AfriNIC address blocks:          1202
    Unique aggregates announced from the AfriNIC address blocks:    829
AfriNIC Region origin ASes present in the Internet Routing Table:   146
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:              2906880
    Equivalent to 0 /8s, 44 /16s and 91 /24s
    Percentage of available AfriNIC address space announced:        8.7

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      997       6453         206   CHINANET-BACKBONE
 9583      827         77          12   Sify Limited
 4755      760        258          65   Videsh Sanchar Nigam Ltd. Aut
 4766      673       3929         296   Korea Telecom (KIX)
 1221      662       1364         472   Telstra Pty Ltd
 7545      515        108          71   TPG Internet Pty Ltd
17676      475       6853          99   Softbank BB Corp.
17488      436         26           9   Hathway IP Over Cable Interne
 9498      410        211          70   BHARTI BT INTERNET LTD.
 9443      399         89          85   Primus Telecommunications
 4802      354         74         159   Wantree Development
 2907      338       1763         315   SINET Japan
 9929      331        217          49   China Netcom Corp.
 7474      329        227         227   SingTel Optus Pty Ltd
17557      310         25         161   Pakistan Telecom
18101      304         69          18   Reliance Infocom Ltd Internet
17974      288         69          24   PT TELEKOMUNIKASI INDONESIA
 4780      282        226          16   Digital United Inc.
 9837      270         78         169   Powertel Ltd
 9800      255        410          67   CHINA UNICOM

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1452       6311         952   AT&T WorldNet Services
 4323     1200        722         235   Time Warner Telecom
  174     1051       5826         968   Cogent Communications
  721     1030      21938         309   DLA Systems Automation Center
  701      972       8117         817   UUNET Technologies, Inc. 
 6197      968        434         504   BellSouth Network Solutions, 
 2386      912        517         685   AT&T Data Communications Serv
18566      887        240           7   Covad Communications 
 1239      843       2803         601   Sprint 
  209      663       3590         529   Qwest 
20115      654        534         336   Charter Communications 
11492      637         89          11   Cable One 
22773      600       1478          33   Cox Communications, Inc.
19262      588       1679         147   Verizon Global Networks 
  852      571       1092         379   Telus Advanced Communications
19916      563         49          54   OLM LLC 
  855      562        243          65   Canadian Research Network 
 3602      523        127         106   Sprint Canada, Inc. 
 3356      519      10617         399   Level 3 Communications, LLC 
 6478      518       1435         285   AT&T Worldnet Services 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      591       1954         469   UUNET - Commercial IP service
 3301      304       1071         290   TeliaNet Sweden
 3320      287       3487         241   Deutsche Telekom AG
 8220      273        474         267   COLT Telecommunications
  680      244       2024         238   DFN-IP service G-WiN
 3246      227        486         220   Song Networks
 8708      223        274         207   Romania Data Systems S.A.
 6746      204         52         176   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
 8866      171         37          11   Bulgarian Telecommunication C
 5400      167        328         136   BT Ignite European Backbone
24863      167         38           9   LINKdotNET AS number
 3215      162       1326          82   France Telecom Transpac
 6830      162        669          33   UPC Distribution Services
 3300      159        169          90   AUCS Communications Services 
12479      155        322           5   Uni2 Autonomous System
25186      150        211         105   France Telecom Transpac's Tra

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      545        775         211   UniNet S.A. de C.V. 
22047      380        141          43   VTR PUNTO NET S.A. 
16814      295         18           7   NSS, S.A. 
11172      291        108          77   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      152         73          18   Telecom Argentina Stet-France
 6147      150        118          21   Telefonica Del Peru 
11664      137         22          13   Keytech SA 
11556      130         64           3   Cable-Wireless Panama 
19169      128          8          26   Telconet 
10481      121         48           8   Prima S.A. 
 6503      114        148          77   AVANTEL, S.A. 
21826      113         14          19   INTERCABLE 
 5639      112         12           9   Telecommunications Services o
 6505      106         88          79   Global One Communicaoes Ltda 
11311       99          8          10   Sinectis S.A. 
18822       99          8          10   TELEFONICA MANQUEHUE 
14522       97         12           8   SatNet S.A. 
 4270       94         17           9   Red de Interconexion Universi

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      272        812         230   The Internet Solution 
 8452      145         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       71         71          10   Itissalat Al-MAGHRIB
24835       65         34           6   RAYA Telecom - Egypt
20928       61         16           2   Noor Advanced Technologies AS
 5713       39        167          35   Telkom SA Ltd 
33774       33          4          24   AS Number for Telecom Algeria
15706       31          8           3   Sudatel Internet Exchange Aut
23889       25          7          10   MAURITIUS TELECOM
 8524       23          1           4   AUCEGYPT Autonomous System
10798       22          1          13   Standard Bank of South Africa
16637       22         10          20   Johnnic e-Ventures 
21280       22          4           4   Swift Global Kenya Ltd.Is an 
12258       17          3          11   Vodacom Internet Company 
15808       17          2           2   Communication Solutions Ltd i
21491       17         17           2   UTL On-line is RF broadband I

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

  ASN   No of nets  Net Savings Description
 4323      1200         965      Time Warner Telecom
18566       887         880      Covad Communications 
 9583       827         815      Sify Limited
 4134       997         791      CHINANET-BACKBONE
  721      1030         721      DLA Systems Automation Center
 4755       760         695      Videsh Sanchar Nigam Ltd. Aut
11492       637         626      Cable One 
22773       600         567      Cox Communications, Inc.
19916       563         509      OLM LLC 
  855       562         497      Canadian Research Network 
 5668       498         474      CenturyTel Internet Holdings,
 6197       968         464      BellSouth Network Solutions, 
 7545       515         444      TPG Internet Pty Ltd
19262       588         441      Verizon Global Networks 
17488       436         427      Hathway IP Over Cable Interne
 3602       523         417      Sprint Canada, Inc. 
 4766       673         377      Korea Telecom (KIX)
17676       475         376      Softbank BB Corp.
 6467       403         357      E.Spire Communications, Inc. 
  812       370         343      Rogers WAVE 

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       6828       Ekaterinburg Telegra
38972   UNALLOCATED   80.251.151.0/24       6828       Ekaterinburg Telegra
38972   UNALLOCATED   80.251.152.0/23      28947       CJSC InT, Ekaterinbu
29544   UNALLOCATED   82.151.64.0/19       12956       Telefonica Data Auto
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        /8:18       /9:5       /10:8       /11:20      /12:86      
/13:194     /14:346     /15:666     /16:8629    /17:2943    /18:4944    
/19:11159   /20:12287   /21:10388   /22:13552   /23:14701   /24:96429   
/25:341     /26:249     /27:195     /28:32      /29:11      /30:33      
/31:3       /32:29      

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

  ASN   No of nets  Total ann.   Description
18566      871           887      Covad Communications 
 6197      784           968      BellSouth Network Solutions, 
 7018      719          1452      AT&T WorldNet Services
 9583      650           827      Sify Limited
 2386      635           912      AT&T Data Communications Serv
11492      628           637      Cable One 
 4323      575          1200      Time Warner Telecom
19916      557           563      OLM LLC 
 4766      477           673      Korea Telecom (KIX)
  855      434           562      Canadian Research Network 
 7011      401           466      Citizens Utilities 
 5668      387           498      CenturyTel Internet Holdings,
  702      373           591      UUNET - Commercial IP service
 1239      362           843      Sprint 
 6198      355           496      BellSouth Network Solutions, 
15270      328           355      PaeTec.net -a division of Pae
 6517      327           353      Yipes Communications, Inc. 
22773      310           600      Cox Communications, Inc.
13609      289           332      Choice One Communications Inc
  701      282           972      UUNET Technologies, Inc. 

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

   4:3         8:40       12:1626     13:1        15:11       16:3      
  17:3        18:3        20:42       24:712      25:1        30:2      
  32:67       38:186      40:54       44:3        47:3        52:4      
  55:1        56:3        57:33       58:106      59:130      60:175    
  61:774      62:770      63:1881     64:2917     65:2133     66:2965   
  67:594      68:695      69:1324     70:262      71:41       72:516    
  73:10       80:685      81:595      82:506      83:345      84:334    
  85:408      86:246      87:123     125:144     128:143     129:167    
 130:101     131:305     132:33      133:1       134:151     135:45     
 136:164     137:62      138:178     139:92      140:445     141:138    
 142:403     143:146     144:224     145:39      146:309     147:135    
 148:345     149:189     150:109     151:71      152:115     153:98     
 154:6       155:183     156:90      157:119     158:151     159:176    
 160:87      161:67      162:245     163:177     164:167     165:181    
 166:147     167:237     168:476     169:142     170:312     171:12     
 192:5716    193:3346    194:2455    195:1708    196:734     198:3866   
 199:3269    200:4294    201:544     202:6387    203:6696    204:3819   
 205:2100    206:2403    207:2923    208:2032    209:3453    210:1837   
 211:800     212:1238    213:1405    214:314     215:40      216:3791   
 217:1161    218:234     219:128     220:610     221:326     222:137    


End of report




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