[afnog] Weekly Routing Table Report

Routing Table Analysis cscora at apnic.net
Sat Sep 4 04:06:06 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 04 Sep, 2004

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

BGP routing table entries examined:                              145774
    Prefixes after maximum aggregation:                           86810
    Unique aggregates announced to Internet:                      69608
Total ASes present in the Internet Routing Table:                 17969
Origin-only ASes present in the Internet Routing Table:           15607
Origin ASes announcing only one prefix:                            7264
Transit ASes present in the Internet Routing Table:                2362
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:                33
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             16
Number of addresses announced to Internet:                   1332457920
    Equivalent to 79 /8s, 107 /16s and 177 /24s
    Percentage of available address space announced:               35.9
    Percentage of allocated address space announced:               58.1
    Percentage of available address space allocated:               61.9
Total number of prefixes smaller than registry allocations:       66629

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

Prefixes being announced by APNIC Region ASes:                    27843
    Total APNIC prefixes after maximum aggregation:               13973
Prefixes being announced from the APNIC address blocks:           26058
    Unique aggregates announced from the APNIC address blocks:    14039
APNIC Region origin ASes present in the Internet Routing Table:    2128
APNIC Region origin ASes announcing only one prefix:                631
APNIC Region transit ASes present in the Internet Routing Table:    331
Average APNIC Region AS path length visible:                        4.9
    Max APNIC Region AS path length visible:                         22
Number of APNIC addresses announced to Internet:              158646144
    Equivalent to 9 /8s, 116 /16s and 191 /24s
    Percentage of available APNIC address space announced:         72.4

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:                     83493
    Total ARIN prefixes after maximum aggregation:                50967
Prefixes being announced from the ARIN address blocks:            63820
    Unique aggregates announced from the ARIN address blocks:     22570
ARIN Region origin ASes present in the Internet Routing Table:     9502
ARIN Region origin ASes announcing only one prefix:                3388
ARIN Region transit ASes present in the Internet Routing Table:     918
Average ARIN Region AS path length visible:                         4.5
    Max ARIN Region AS path length visible:                          18
Number of ARIN addresses announced to Internet:               231154464
    Equivalent to 13 /8s, 199 /16s and 35 /24s
    Percentage of available ARIN address space announced:          68.9

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:                     26825
    Total RIPE prefixes after maximum aggregation:                18919
Prefixes being announced from the RIPE address blocks:            23631
    Unique aggregates announced from the RIPE address blocks:     15737
RIPE Region origin ASes present in the Internet Routing Table:     5791
RIPE Region origin ASes announcing only one prefix:                3109
RIPE Region transit ASes present in the Internet Routing Table:     992
Average RIPE Region AS path length visible:                         5.4
    Max RIPE Region AS path length visible:                          21
Number of RIPE addresses announced to Internet:               170299456
    Equivalent to 10 /8s, 38 /16s and 144 /24s
    Percentage of available RIPE address space announced:          59.7

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:                    6332
    Total LACNIC prefixes after maximum aggregation:               2262
Prefixes being announced from the LACNIC address blocks:           6118
    Unique aggregates announced from the LACNIC address blocks:    3504
LACNIC Region origin ASes present in the Internet Routing Table:    387
LACNIC Region origin ASes announcing only one prefix:               115
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:                        16
Number of LACNIC addresses announced to Internet:              15855104
    Equivalent to 0 /8s, 241 /16s and 238 /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:                   1248
    Total AfriNIC prefixes after maximum aggregation:               689
Prefixes being announced from the AfriNIC address blocks:           833
    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:   13
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      833       4193         156   Data Communications Bureau
 1221      811       1184         585   Telstra Pty Ltd
 4766      564       2897         265   Korea Internet Exchange for "
 9583      529         41         105   Satyam Infoway Ltd.,
 4755      364        133          50   Videsh Sanchar Nigam Ltd. Aut
 9929      363        162          34   China Netcom Corp.
 9443      355         70          81   Primus Telecommunications
 2907      352       1840         326   SINET Japan
17676      348       5180          39   XTAGE CORPORATION
17557      317         22         155   Pakistan Telecom
  703      312        342         241   UUNET
 2764      283        273         231   connect.com.au pty ltd
 7474      266        268         200   Optus Communications Pty Ltd
 4802      233         28         143   Wantree Development
 9942      232         73         127   COMindico Australia
 9800      228        372          66   CHINA UNICOM
 9498      221         49          49   BHARTI BT INTERNET LTD.
10036      202         18         183   C&M Communication Co. Ltd.
 4837      201       2256         105   chinanet IDC center beijing n
17974      201         61          10   PT TELEKOMUNIKASI INDONESIA

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1412       6759         966   AT&T WorldNet Services
  701     1275       8424         917   UUNET Technologies, Inc. 
 1239      920       2852         614   Sprint 
 2386      828        561         593   AT&T Data Communications Serv
 4323      779        633         216   Time Warner Telecom
18566      743        208           6   Covad Communications 
  721      715      21020         295   DLA Systems Automation Center
 6197      715        362         338   BellSouth Network Solutions, 
  209      621       3431         498   Qwest 
20115      580        407         292   Charter Communications 
 3356      568      10981         438   Level 3 Communications, LLC 
 6347      540        296         118   SAVVIS Communications Corpora
  852      511       1141         398   Telus Advanced Communications
 7843      490        675         104   Adelphia Corp. 
 3561      466       2390         349   Cable & Wireless USA 
 6198      441        401         204   BellSouth Network Solutions, 
 7132      435       8029         377   SBC Internet Services
  705      428        163         270   UUNET Technologies, Inc. 
 5668      389         87          18   Century Telephone 
22773      389        960          19   Cox Communications, Inc. Atla

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      649       2032         539   UUNET - Commercial IP service
 3320      301       2470         238   Deutsche Telekom AG
 3301      281       1098         271   TeliaNet Sweden
 8220      275        445         262   COLT Internet - International
  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          76   France Telecom Transpac
  786      177       1794         177   The JANET IP Service
  719      157        288         102   LANLINK autonomous system
 5400      155        209         126   BT Ignite European Backbone
 6746      154         29         131   Dynamic Network Technologies,
25186      153        154         109   France Telecom Transpac's Tra
 3303      146        609         129   Swisscom Ltd
 3269      145       1195          66   TELECOM ITALIA
 8866      136         16          17   Bulgarian Telecommunication C
12302      127         18          33   MobiFon S.A.

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
11172      357        100          54   Servicios Alestra S.A de C.V 
 6140      356        137          63   ImpSat
 8151      286        407         132   UniNet S.A. de C.V. 
16814      212         13           7   NSS, S.A. 
 6147      191         86          19   Telefonica Del Peru 
11664      158         11          21   Keytech SA 
 6505      136         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       86          6          34   ANDINATEL S.A. 
 6535       84          5          18   Chilesat Servicios  Empresari
10481       81         32           7   Prima S.A. 
11556       80         40           2   Cable-Wireless Panama 
11311       78          7          19   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       69          5           4   Telefonica del Sur S.A. 
10292       67          6          29   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       49         16           1   Botswana Telecommunications C
24835       36         34           7   RAYA Telecom - Egypt
 9129       31          3           4   UUNET Kenya
 6713       27         42          10   Itissalat Al-MAGHRIB
 5713       26        125          24   Telkom SA Ltd 
 8524       25          1           4   AUCEGYPT Autonomous System
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
21491       14          1           3   UTL On-line is RF broadband I
15808       13          1           2   Communication Solutions Ltd i
17148       13          1           7   First National Bank 

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

  ASN   No of nets  Net Savings Description
18566       743         737      Covad Communications 
 4134       833         677      Data Communications Bureau
 4323       779         563      Time Warner Telecom
 9583       529         424      Satyam Infoway Ltd.,
 6347       540         422      SAVVIS Communications Corpora
  721       715         420      DLA Systems Automation Center
 7843       490         386      Adelphia Corp. 
 6197       715         377      BellSouth Network Solutions, 
 5668       389         371      Century Telephone 
22773       389         370      Cox Communications, Inc. Atla
  701      1275         358      UUNET Technologies, Inc. 
 6467       388         358      E.Spire Communications, Inc. 
27364       364         345      Armstrong Cable Services 
22909       365         330      Comcast Cable Corporation 
 9929       363         329      China Netcom Corp.
 4755       364         314      Videsh Sanchar Nigam Ltd. Aut
17676       348         309      XTAGE CORPORATION
 1239       920         306      Sprint 
11172       357         303      Servicios Alestra S.A de C.V 
 4766       564         299      Korea Internet Exchange for "

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

Bad AS  Designation  Network              Transit AS  Description
65217   PRIVATE       192.102.236.0/24       217       University of Minnes
 1877   UNALLOCATED   192.108.199.0/24      1876       Southern Methodist U
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
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

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       /11:14      /12:63      
/13:134     /14:304     /15:541     /16:8029    /17:2201    /18:3813    
/19:9748    /20:10249   /21:7702    /22:10621   /23:12237   /24:79352   
/25:240     /26:189     /27:100     /28:52      /29:27      /30:87      
/31:0       /32:43      

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

  ASN   No of nets  Total ann.   Description
18566      727           743      Covad Communications 
 2386      591           828      AT&T Data Communications Serv
 6197      567           715      BellSouth Network Solutions, 
 7018      556          1412      AT&T WorldNet Services
  702      397           649      UUNET - Commercial IP service
 6347      389           540      SAVVIS Communications Corpora
 9583      369           529      Satyam Infoway Ltd.,
 4766      368           564      Korea Internet Exchange for "
  701      358          1275      UUNET Technologies, Inc. 
 1239      353           920      Sprint 
27364      348           364      Armstrong Cable Services 
 5668      340           389      Century Telephone 
 6198      322           441      BellSouth Network Solutions, 
20115      302           580      Charter Communications 
 9929      290           363      China Netcom Corp.
 6467      285           388      E.Spire Communications, Inc. 
 6517      265           292      Yipes Communications, Inc. 
13609      261           304      Choice One Communications Inc
 3320      247           301      Deutsche Telekom AG
25844      245           245      Skadden, Arps, Slate, Meagher

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

   4:4         8:2        12:1413     13:1        15:5        16:2      
  17:3        20:9        24:703      32:78       33:3        38:79     
  40:54       44:4        52:3        55:1        56:3        57:17     
  60:6        61:468      62:500      63:1829     64:2293     65:2064   
  66:2447     67:367      68:540      69:696      70:34       80:517    
  81:370      82:231      83:140      84:26      128:104     129:171    
 130:87      131:190     132:26      134:187     135:17      136:187    
 137:50      138:168     139:38      140:158     141:107     142:120    
 143:67      144:155     145:41      146:292     147:92      148:422    
 149:107     150:87      151:70      152:169     153:68      154:2      
 155:129     156:58      157:79      158:141     159:160     160:56     
 161:71      162:389     163:79      164:205     165:160     166:111    
 167:221     168:286     169:109     170:271     171:9       192:5589   
 193:2881    194:2114    195:1470    196:590     198:3666    199:3250   
 200:3703    201:15      202:4771    203:5634    204:3221    205:2076   
 206:2318    207:2528    208:2133    209:3037    210:1470    211:586    
 212:1014    213:1195    214:130     215:31      216:3709    217:997    
 218:186     219:84      220:245     221:37      222:44     

End of report


More information about the afnog mailing list