[afnog] Weekly Routing Table Report

Routing Table Analysis cscora at apnic.net
Sat Sep 11 04:06:15 EAT 2004


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 at lists.apnic.net

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

Routing Table Report   04:00 +10GMT Sat 11 Sep, 2004

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

BGP routing table entries examined:                              146736
    Prefixes after maximum aggregation:                           87224
    Unique aggregates announced to Internet:                      70017
Total ASes present in the Internet Routing Table:                 18024
Origin-only ASes present in the Internet Routing Table:           15648
Origin ASes announcing only one prefix:                            7294
Transit ASes present in the Internet Routing Table:                2376
Transit-only ASes present in the Internet Routing Table:             78
Average AS path length visible in the Internet Routing Table:       4.8
    Max AS path length visible:                                      22
Prefixes from unregistered ASNs in the Routing Table:                39
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             16
Number of addresses announced to Internet:                   1337060260
    Equivalent to 79 /8s, 177 /16s and 235 /24s
    Percentage of available address space announced:               36.1
    Percentage of allocated address space announced:               58.3
    Percentage of available address space allocated:               61.9
Total number of prefixes smaller than registry allocations:       67256

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

Prefixes being announced by APNIC Region ASes:                    28030
    Total APNIC prefixes after maximum aggregation:               14146
Prefixes being announced from the APNIC address blocks:           26260
    Unique aggregates announced from the APNIC address blocks:    14223
APNIC Region origin ASes present in the Internet Routing Table:    2133
APNIC Region origin ASes announcing only one prefix:                633
APNIC Region transit ASes present in the Internet Routing Table:    331
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         22
Number of APNIC addresses announced to Internet:              161753472
    Equivalent to 9 /8s, 164 /16s and 41 /24s
    Percentage of available APNIC address space announced:         73.8

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
                       23552-24575
APNIC Address Blocks   58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8

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

Prefixes being announced by ARIN Region ASes:                     83838
    Total ARIN prefixes after maximum aggregation:                51137
Prefixes being announced from the ARIN address blocks:            64173
    Unique aggregates announced from the ARIN address blocks:     22648
ARIN Region origin ASes present in the Internet Routing Table:     9534
ARIN Region origin ASes announcing only one prefix:                3401
ARIN Region transit ASes present in the Internet Routing Table:     927
Average ARIN Region AS path length visible:                         4.5
    Max ARIN Region AS path length visible:                          18
Number of ARIN addresses announced to Internet:               231930912
    Equivalent to 13 /8s, 210 /16s and 252 /24s
    Percentage of available ARIN address space announced:          69.1

ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
                       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,
                       26624-27647,29695-30719, 31744-33791
ARIN Address Blocks    24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
                       208/7 and 216/8

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

Prefixes being announced by RIPE Region ASes:                     27170
    Total RIPE prefixes after maximum aggregation:                18966
Prefixes being announced from the RIPE address blocks:            24008
    Unique aggregates announced from the RIPE address blocks:     15815
RIPE Region origin ASes present in the Internet Routing Table:     5804
RIPE Region origin ASes announcing only one prefix:                3120
RIPE Region transit ASes present in the Internet Routing Table:     996
Average RIPE Region AS path length visible:                         5.4
    Max RIPE Region AS path length visible:                          21
Number of RIPE addresses announced to Internet:               170824000
    Equivalent to 10 /8s, 46 /16s and 145 /24s
    Percentage of available RIPE address space announced:          59.9

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
                       2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-34815
RIPE Address Blocks    62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
                       and 217/8

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

Prefixes being announced by LACNIC Region ASes:                    6416
    Total LACNIC prefixes after maximum aggregation:               2282
Prefixes being announced from the LACNIC address blocks:           6182
    Unique aggregates announced from the LACNIC address blocks:    3543
LACNIC Region origin ASes present in the Internet Routing Table:    393
LACNIC Region origin ASes announcing only one prefix:               119
LACNIC Region transit ASes present in the Internet Routing Table:    78
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        15
Number of LACNIC addresses announced to Internet:              15884544
    Equivalent to 0 /8s, 242 /16s and 97 /24s
    Percentage of available LACNIC address space announced:        47.3

LACNIC AS Blocks       26592-26623, 27648-28671
LACNIC Address Blocks  200/7

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

Prefixes being announced by AfriNIC Region ASes:                   1243
    Total AfriNIC prefixes after maximum aggregation:               690
Prefixes being announced from the AfriNIC address blocks:           827
    Unique aggregates announced from the AfriNIC address blocks:    662
AfriNIC Region origin ASes present in the Internet Routing Table:    92
AfriNIC Region origin ASes announcing only one prefix:               21
AfriNIC Region transit ASes present in the Internet Routing Table:   12
Average AfriNIC Region AS path length visible:                      4.6
    Max AfriNIC Region AS path length visible:                       16
Number of AfriNIC addresses announced to Internet:              2060032
    Equivalent to 0 /8s, 31 /16s and 111 /24s
    Percentage of available AfriNIC address space announced:       12.3

AfriNIC AS Blocks      <none>
AfriNIC Address Blocks 196/8

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4134      832       4193         156   Data Communications Bureau
 1221      811       1184         585   Telstra Pty Ltd
 4766      558       3409         265   Korea Internet Exchange for "
 9583      527         41         101   Satyam Infoway Ltd.,
 4755      366        133          50   Videsh Sanchar Nigam Ltd. Aut
 9929      356        162          34   China Netcom Corp.
 9443      355         70          81   Primus Telecommunications
 2907      352       1840         326   SINET Japan
17676      348       5180          39   XTAGE CORPORATION
17557      314         22         155   Pakistan Telecom
  703      312        341         241   UUNET
 2764      285        274         233   connect.com.au pty ltd
 7474      272        270         202   Optus Communications Pty Ltd
 4802      232         28         142   Wantree Development
 9942      231         73         127   COMindico Australia
 9800      228        372          66   CHINA UNICOM
 9498      226         49          51   BHARTI BT INTERNET LTD.
17974      202         61          10   PT TELEKOMUNIKASI INDONESIA
 4837      201       2256         105   chinanet IDC center beijing n
10036      201         18         184   C&M Communication Co. Ltd.

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1398       6751         967   AT&T WorldNet Services
  701     1270       8423         913   UUNET Technologies, Inc. 
 1239      943       2866         629   Sprint 
 2386      825        561         589   AT&T Data Communications Serv
 4323      779        633         216   Time Warner Telecom
18566      739        208           6   Covad Communications 
 6197      718        363         340   BellSouth Network Solutions, 
  721      715      21026         295   DLA Systems Automation Center
  209      621       3431         495   Qwest 
20115      583        418         295   Charter Communications 
 3356      581      10967         449   Level 3 Communications, LLC 
 6347      539        296         116   SAVVIS Communications Corpora
  852      511       1141         398   Telus Advanced Communications
 7843      488        674         104   Adelphia Corp. 
 3561      466       2390         348   Cable & Wireless USA 
 6198      455        401         210   BellSouth Network Solutions, 
 7132      436       8157         378   SBC Internet Services
  705      428        163         270   UUNET Technologies, Inc. 
22773      395        960          19   Cox Communications, Inc. Atla
 5668      393         87          18   Century Telephone 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      642       2031         532   UUNET - Commercial IP service
 3320      301       2470         238   Deutsche Telekom AG
 3301      281       1098         271   TeliaNet Sweden
 8220      276        444         262   COLT Internet - International
21502      268         40           3   NUMERICABLE is a cabled netwo
  680      251       2025         239   DFN-IP service G-WiN
 3246      217        475         214   Song Networks
13083      217         51           8   Mannesmann Datenverarbeitung 
 1257      213        747         182   SWIPnet Swedish IP Network
 8708      203        113         182   Romania Data Systems S.A.
 5515      199        842         145   Sonera Solution Autonomous Sy
 3215      182        876          77   France Telecom Transpac
  786      177       1794         177   The JANET IP Service
  719      157        288         102   LANLINK autonomous system
 5400      156        209         126   BT Ignite European Backbone
 6746      154         29         131   Dynamic Network Technologies,
25186      153        154         109   France Telecom Transpac's Tra
 3303      147        610         130   Swisscom Ltd
 3269      145       1195          66   TELECOM ITALIA
 8866      138         17          20   Bulgarian Telecommunication C

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      395        138          66   ImpSat
11172      355         83          52   Servicios Alestra S.A de C.V 
 8151      285        406         131   UniNet S.A. de C.V. 
16814      212         13           7   NSS, S.A. 
 6147      191         86          19   Telefonica Del Peru 
11664      151         11          22   Keytech SA 
 6505      135         90          93   Global One Communicaoes Ltda 
 6503      134        187          90   AVANTEL, S.A. 
 7303      121         55          19   Telecom Argentina Stet-France
11992       90          9          31   Integrated Systems 
14420       87          6          35   ANDINATEL S.A. 
 6535       84          5          18   Chilesat Servicios  Empresari
10481       81         32           7   Prima S.A. 
11556       81         41           3   Cable-Wireless Panama 
11311       80          7          20   Sinectis S.A. 
 5639       77          8           8   Telecommunications Services o
15311       76         21          36   Telefonica Empresas 
 4270       70         18           9   Red de Interconexion Universi
14117       70          5           4   Telefonica del Sur S.A. 
10292       68          6          26   TELECOMMUNICATIONS OF JAMAICA

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      252        632         219   The Internet Solution 
 5536      114         16           4   Internet Egypt Network
 2018       94        297          92   Tertiary Education Network 
 2905       92        276          81   The Internetworking Company o
20928       59         16           1   Noor Advanced Technologies AS
14988       48         16           1   Botswana Telecommunications C
24835       36         34           7   RAYA Telecom - Egypt
 6713       31         42          10   Itissalat Al-MAGHRIB
 5713       26        125          24   Telkom SA Ltd 
 8524       25          1           4   AUCEGYPT Autonomous System
 9129       25          3           4   UUNET Kenya
16637       24         10          19   Johnnic e-Ventures 
10798       18          1          12   Standard Bank of South Africa
12258       18          3          12   Vodacom Internet Company 
12455       17          4           2   Jambonet Autonomous system
 8346       15          7          14   SONATEL-AS Autonomous System
15706       15          4           2   Sudatel Internet Exchange Aut
21280       14          2           3   Swift Global Kenya Ltd.Is an 
21491       14          1           3   UTL On-line is RF broadband I
15808       13          1           2   Communication Solutions Ltd i

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

  ASN   No of nets  Net Savings Description
18566       739         733      Covad Communications 
 4134       832         676      Data Communications Bureau
 4323       779         563      Time Warner Telecom
 9583       527         426      Satyam Infoway Ltd.,
 6347       539         423      SAVVIS Communications Corpora
  721       715         420      DLA Systems Automation Center
 7843       488         384      Adelphia Corp. 
 6197       718         378      BellSouth Network Solutions, 
22773       395         376      Cox Communications, Inc. Atla
 5668       393         375      Century Telephone 
 6467       390         360      E.Spire Communications, Inc. 
  701      1270         357      UUNET Technologies, Inc. 
27364       365         346      Armstrong Cable Services 
22909       365         330      Comcast Cable Corporation 
 6140       395         329      ImpSat
 9929       356         322      China Netcom Corp.
 4755       366         316      Videsh Sanchar Nigam Ltd. Aut
 1239       943         314      Sprint 
17676       348         309      XTAGE CORPORATION
11172       355         303      Servicios Alestra S.A de C.V 

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

Bad AS  Designation  Network              Transit AS  Description
23456   UNALLOCATED   62.241.160.0/19      25346       Pipex Internet UK IS
23456   UNALLOCATED   81.86.0.0/16         25346       Pipex Internet UK IS
23456   UNALLOCATED   81.178.0.0/15        25346       Pipex Internet UK IS
65217   PRIVATE       192.102.236.0/24       217       University of Minnes
 1877   UNALLOCATED   192.108.199.0/24      1876       Southern Methodist U
37799   UNALLOCATED   195.214.216.0/21     30799       VERANET Internet Ser
64572   PRIVATE       219.146.96.0/21      17633       ASN for Shandong Pro
64572   PRIVATE       219.146.104.0/21     17633       ASN for Shandong Pro
64573   PRIVATE       219.146.112.0/21     17633       ASN for Shandong Pro
64573   PRIVATE       219.146.120.0/21     17633       ASN for Shandong Pro
64576   PRIVATE       219.146.128.0/21     17633       ASN for Shandong Pro
64576   PRIVATE       219.146.136.0/21     17633       ASN for Shandong Pro
64582   PRIVATE       219.146.144.0/22     17633       ASN for Shandong Pro
64582   PRIVATE       219.146.148.0/22     17633       ASN for Shandong Pro
64584   PRIVATE       219.146.176.0/22     17633       ASN for Shandong Pro
64584   PRIVATE       219.146.180.0/22     17633       ASN for Shandong Pro
64575   PRIVATE       219.146.192.0/22     17633       ASN for Shandong Pro
64575   PRIVATE       219.146.196.0/22     17633       ASN for Shandong Pro
64580   PRIVATE       219.146.208.0/21     17633       ASN for Shandong Pro
64581   PRIVATE       219.146.216.0/21     17633       ASN for Shandong Pro
64585   PRIVATE       219.146.224.0/21     17633       ASN for Shandong Pro
64586   PRIVATE       219.146.232.0/21     17633       ASN for Shandong Pro
64582   PRIVATE       219.147.0.0/24       17633       ASN for Shandong Pro
64572   PRIVATE       222.173.128.0/20     17633       ASN for Shandong Pro
64572   PRIVATE       222.173.144.0/20     17633       ASN for Shandong Pro
64573   PRIVATE       222.173.160.0/20     17633       ASN for Shandong Pro
64573   PRIVATE       222.173.176.0/20     17633       ASN for Shandong Pro
64576   PRIVATE       222.173.192.0/20     17633       ASN for Shandong Pro
64576   PRIVATE       222.173.208.0/20     17633       ASN for Shandong Pro
64582   PRIVATE       222.173.224.0/20     17633       ASN for Shandong Pro
64582   PRIVATE       222.173.240.0/20     17633       ASN for Shandong Pro
64584   PRIVATE       222.174.96.0/20      17633       ASN for Shandong Pro
64584   PRIVATE       222.174.112.0/20     17633       ASN for Shandong Pro
64575   PRIVATE       222.174.160.0/20     17633       ASN for Shandong Pro
64575   PRIVATE       222.174.176.0/20     17633       ASN for Shandong Pro
64580   PRIVATE       222.174.224.0/19     17633       ASN for Shandong Pro
64581   PRIVATE       222.175.0.0/19       17633       ASN for Shandong Pro
64585   PRIVATE       222.175.32.0/19      17633       ASN for Shandong Pro
64586   PRIVATE       222.175.64.0/19      17633       ASN for Shandong Pro

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       4738     South Australian Academic Res
192.44.0.0/19          702     UUNET - Commercial IP service
192.70.164.0/24      25689     National Research Council of 
192.83.16.0/20        5515     Sonera Solution Autonomous Sy
192.83.32.0/19        5515     Sonera Solution Autonomous Sy
192.83.96.0/22        5515     Sonera Solution Autonomous Sy
192.83.100.0/24       5515     Sonera Solution Autonomous Sy
192.84.205.0/24        719     LANLINK autonomous system
192.119.135.0/24       270     NASA 
192.135.50.0/24       7018     AT&T WorldNet Services
192.136.79.0/24        719     LANLINK autonomous system
192.172.0.0/19         721     DLA Systems Automation Center
192.172.11.0/24        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       /9:3       /10:6       /11:15      /12:63      
/13:134     /14:304     /15:542     /16:8041    /17:2205    /18:3828    
/19:9765    /20:10318   /21:7739    /22:10652   /23:12293   /24:80088   
/25:238     /26:196     /27:103     /28:46      /29:24      /30:72      
/31:0       /32:42      

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

  ASN   No of nets  Total ann.   Description
18566      724           739      Covad Communications 
 2386      592           825      AT&T Data Communications Serv
 6197      570           718      BellSouth Network Solutions, 
 7018      544          1398      AT&T WorldNet Services
  702      395           642      UUNET - Commercial IP service
 6347      390           539      SAVVIS Communications Corpora
 1239      371           943      Sprint 
 9583      369           527      Satyam Infoway Ltd.,
 4766      361           558      Korea Internet Exchange for "
  701      357          1270      UUNET Technologies, Inc. 
27364      349           365      Armstrong Cable Services 
 5668      343           393      Century Telephone 
 6198      334           455      BellSouth Network Solutions, 
20115      301           583      Charter Communications 
 6467      287           390      E.Spire Communications, Inc. 
 9929      285           356      China Netcom Corp.
 6517      269           296      Yipes Communications, Inc. 
21502      265           268      NUMERICABLE is a cabled netwo
13609      261           304      Choice One Communications Inc
 3320      247           301      Deutsche Telekom AG

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

   4:4         8:3        12:1387     13:1        15:5        16:2      
  17:3        20:9        24:704      32:66       33:3        38:78     
  40:54       44:4        52:3        55:1        56:3        57:17     
  60:6        61:477      62:494      63:1847     64:2307     65:2065   
  66:2474     67:389      68:538      69:703      70:68       80:521    
  81:543      82:318      83:144      84:26      128:109     129:171    
 130:87      131:190     132:26      134:186     135:17      136:186    
 137:55      138:169     139:35      140:162     141:107     142:120    
 143:67      144:155     145:41      146:293     147:95      148:423    
 149:108     150:87      151:70      152:168     153:68      154:2      
 155:129     156:58      157:79      158:142     159:160     160:57     
 161:71      162:388     163:80      164:204     165:159     166:111    
 167:224     168:288     169:114     170:267     171:9       192:5599   
 193:2888    194:2127    195:1466    196:584     198:3675    199:3256   
 200:3752    201:16      202:4827    203:5643    204:3228    205:2092   
 206:2322    207:2545    208:2151    209:3060    210:1479    211:600    
 212:1070    213:1189    214:130     215:31      216:3753    217:993    
 218:193     219:86      220:249     221:37      222:43     

End of report


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