[afnog] Weekly Routing Table Report

Routing Table Analysis cscora at apnic.net
Sat Jul 24 04:06:19 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 24 Jul, 2004

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

BGP routing table entries examined:                              142670
    Prefixes after maximum aggregation:                           85520
    Unique aggregates announced to Internet:                      68654
Total ASes present in the Internet Routing Table:                 17645
Origin-only ASes present in the Internet Routing Table:           15315
Origin ASes announcing only one prefix:                            7166
Transit ASes present in the Internet Routing Table:                2330
Transit-only ASes present in the Internet Routing Table:             72
Average AS path length visible in the Internet Routing Table:       4.8
    Max AS path length visible:                                      26
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:             19
Number of addresses announced to Internet:                   1304901856
    Equivalent to 77 /8s, 199 /16s and 56 /24s
    Percentage of available address space announced:               35.2
    Percentage of allocated address space announced:               57.8
    Percentage of available address space allocated:               60.9
Total number of prefixes smaller than registry allocations:       65553

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

Prefixes being announced by APNIC Region ASes:                    27454
    Total APNIC prefixes after maximum aggregation:               13982
Prefixes being announced from the APNIC address blocks:           25658
    Unique aggregates announced from the APNIC address blocks:    14026
APNIC Region origin ASes present in the Internet Routing Table:    2082
APNIC Region origin ASes announcing only one prefix:                624
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:                         16
Number of APNIC addresses announced to Internet:              153526784
    Equivalent to 9 /8s, 38 /16s and 162 /24s
    Percentage of available APNIC address space announced:         70.1

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:                     81511
    Total ARIN prefixes after maximum aggregation:                49985
Prefixes being announced from the ARIN address blocks:            63255
    Unique aggregates announced from the ARIN address blocks:     22028
ARIN Region origin ASes present in the Internet Routing Table:     9329
ARIN Region origin ASes announcing only one prefix:                3339
ARIN Region transit ASes present in the Internet Routing Table:     914
Average ARIN Region AS path length visible:                         4.6
    Max ARIN Region AS path length visible:                          18
Number of ARIN addresses announced to Internet:               227994656
    Equivalent to 13 /8s, 150 /16s and 236 /24s
    Percentage of available ARIN address space announced:          75.5

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, 70/8, 198/7, 204/6, 208/7
                       and 216/8

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

Prefixes being announced by RIPE Region ASes:                     26378
    Total RIPE prefixes after maximum aggregation:                18619
Prefixes being announced from the RIPE address blocks:            23173
    Unique aggregates announced from the RIPE address blocks:     15368
RIPE Region origin ASes present in the Internet Routing Table:     5688
RIPE Region origin ASes announcing only one prefix:                3071
RIPE Region transit ASes present in the Internet Routing Table:     973
Average RIPE Region AS path length visible:                         5.4
    Max RIPE Region AS path length visible:                          26
Number of RIPE addresses announced to Internet:               167462080
    Equivalent to 9 /8s, 251 /16s and 68 /24s
    Percentage of available RIPE address space announced:          58.7

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:                    6115
    Total LACNIC prefixes after maximum aggregation:               2249
Prefixes being announced from the LACNIC address blocks:           5805
    Unique aggregates announced from the LACNIC address blocks:    3530
LACNIC Region origin ASes present in the Internet Routing Table:    384
LACNIC Region origin ASes announcing only one prefix:               111
LACNIC Region transit ASes present in the Internet Routing Table:    74
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        16
Number of LACNIC addresses announced to Internet:              15371008
    Equivalent to 0 /8s, 234 /16s and 139 /24s
    Percentage of available LACNIC address space announced:        45.8

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

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

Prefixes being announced by AfriNIC Region ASes:                   1208
    Total AfriNIC prefixes after maximum aggregation:               685
Prefixes being announced from the AfriNIC address blocks:           817
    Unique aggregates announced from the AfriNIC address blocks:    645
AfriNIC Region origin ASes present in the Internet Routing Table:    91
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:                      4.8
    Max AfriNIC Region AS path length visible:                       16
Number of AfriNIC addresses announced to Internet:              1903616
    Equivalent to 0 /8s, 29 /16s and 12 /24s
    Percentage of available AfriNIC address space announced:       11.3

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 1221      818       1056         589   Telstra Pty Ltd
 4134      812       4096         150   Data Communications Bureau
 4766      502       2895         265   Korea Internet Exchange for "
 9583      486         39         109   Satyam Infoway Ltd.,
 4755      398        134          54   Videsh Sanchar Nigam Ltd. Aut
 9443      353         69          78   Primus Telecommunications
 2907      352       1840         326   SINET Japan
17676      341       5084          33   XTAGE CORPORATION
 9929      329        159          31   China Netcom Corp.
17557      321         22         164   Pakistan Telecom
  703      316        342         245   UUNET
 2764      289        258         236   connect.com.au pty ltd
 7474      267        269         205   Optus Communications Pty Ltd
 9942      237         71         130   COMindico Australia
 9800      225        369          62   CHINA UNICOM
 4802      224         25         139   Wantree Development
 9498      222         48          52   BHARTI BT INTERNET LTD.
17633      203         54           8   ASN for Shandong Provincial N
10036      197         18         178   C&M Communication Co. Ltd.
 4837      191       2019         105   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1426       6874         993   AT&T 
  701     1312       8443         943   UUNET Technologies, Inc. 
 6347      952        391         122   SAVVIS Communications Corpora
 1239      938       2871         623   Sprint 
 3356      888      10932         671   Level 3 Communications, LLC 
 4323      739        570         210   Time Warner Communications, I
18566      729        192           8   Covad Communications 
 6197      721        479         301   BellSouth Network Solutions, 
  209      614       3427         500   Qwest 
  721      569      20776         263   DLA Systems Automation Center
20115      566        376         291   Charter Communications 
  852      511       1142         399   Telus Advanced Communications
 7843      511        669         127   Adelphia Corp. 
 7132      484       7880         366   Southwestern Bell Internet Se
 6198      449        394         203   BellSouth Network Solutions, 
 2386      411        533         230   AT&T Data Communications Serv
22909      396        830          33   Comcast Cable Corporation 
 4355      391        323         101   EarthLink, Inc. 
  705      388        128         264   UUNET Technologies, Inc. 
22773      387        774          58   Cox Communications, Inc. Atla

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      647       2038         539   UUNET - Commercial IP service
 3320      300       2468         237   Deutsche Telekom AG
 3301      281       1098         270   TeliaNet Sweden
 8220      276        433         264   COLT Internet - International
  680      244       2025         239   DFN-IP service G-WiN
 1257      217        747         186   SWIPnet Swedish IP Network
13083      216         51           8   Mannesmann Datenverarbeitung 
 3246      215        484         212   Song Networks
 5515      200        842         146   Sonera Solution Autonomous Sy
 8708      192        113         176   Romania Data Systems S.A.
 3215      182        895          70   France Telecom Transpac
  786      174       1794         174   The JANET IP Service
25186      172        156         114   France Telecom Transpac's Tra
 6746      158         29         128   Dynamic Network Technologies,
  719      150        288         102   LANLINK autonomous system
 5400      146        207         121   BT Ignite European Backbone
 3269      138       1131          63   TELECOM ITALIA
 8866      133         15          14   Bulgarian Telecommunication C
 3303      131        610         130   Swisscom Ltd
12302      128         18          32   MobiFon S.A.

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
11172      353         99          54   Servicios Alestra S.A de C.V 
 6140      334        140          65   ImpSat
 8151      277        389         126   UniNet S.A. de C.V. 
16814      203         13           7   NSS, S.A. 
 6147      185         86          20   Telefonica Del Peru 
 6505      134         90          92   Global One Communicaoes Ltda 
 6503      127        202          85   AVANTEL, S.A. 
 7303      120         55          18   Telecom Argentina Stet-France
11992       91          9          29   Integrated Systems 
11556       87         57          24   Cable-Wireless Panama 
 6535       81          5          16   Chilesat Servicios  Empresari
14420       81          5          31   ANDINATEL S.A. 
11311       80          7          18   Sinectis S.A. 
15311       75         19          37   Telefonica Empresas 
14535       73          6           5   Techtel S.A. 
 5639       71          8           8   Telecommunications Services o
 4270       70         18           9   Red de Interconexion Universi
10292       67          6          26   TELECOMMUNICATIONS OF JAMAICA
11340       67          5          36   Red Universitaria Nacional 
14259       67          4           5   GTD Internet S.A. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      252        632         219   The Internet Solution 
 5536      113         16           4   Internet Egypt Network
 2018       94        297          92   Tertiary Education Network 
 2905       92        276          81   The Internetworking Company o
11845       42          9          11   Data Pro Business Online 
20928       42         16           1   Noor Advanced Technologies AS
24835       31         18           6   RAYA Telecom - Egypt
16637       30          9          23   Johnnic e-Ventures 
14988       28         16           1   Botswana Telecommunications C
 9129       27          3           4   UUNET Kenya
 6713       26         38           9   Itissalat Al-MAGHRIB
 5713       25        125          23   Telkom SA Ltd 
 8524       24          2           7   AUCEGYPT Autonomous System
12455       23          4           2   Jambonet Autonomous system
10798       18          1          12   Standard Bank of South Africa
12258       15          3          10   Vodacom Internet Company 
15706       15          4           2   Sudatel Internet Exchange Aut
 8346       13          6          12   SONATEL-AS Autonomous System
17148       13          1           7   First National Bank 
 2609       12         26           4   Tunisia BackBone AS

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

  ASN   No of nets  Net Savings Description
 6347       952         830      SAVVIS Communications Corpora
18566       729         721      Covad Communications 
 4134       812         662      Data Communications Bureau
 4323       739         529      Time Warner Communications, I
 6197       721         420      BellSouth Network Solutions, 
 7843       511         384      Adelphia Corp. 
 9583       486         377      Satyam Infoway Ltd.,
  701      1312         369      UUNET Technologies, Inc. 
 5668       383         365      Century Telephone 
22909       396         363      Comcast Cable Corporation 
 4755       398         344      Videsh Sanchar Nigam Ltd. Aut
 6467       369         336      E.Spire Communications, Inc. 
27364       349         330      Armstrong Cable Services 
22773       387         329      Cox Communications, Inc. Atla
 1239       938         315      Sprint 
17676       341         308      XTAGE CORPORATION
  721       569         306      DLA Systems Automation Center
11172       353         299      Servicios Alestra S.A de C.V 
 9929       329         298      China Netcom Corp.
 4355       391         290      EarthLink, Inc. 

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

Bad AS  Designation  Network              Transit AS  Description
18416   UNALLOCATED   61.56.96.0/24         9919       New Century InfoComm
18416   UNALLOCATED   61.56.96.0/20         9919       New Century InfoComm
18416   UNALLOCATED   61.56.97.0/24         9919       New Century InfoComm
18416   UNALLOCATED   61.56.98.0/24         9919       New Century InfoComm
65534   PRIVATE       80.68.80.0/20         8943       Jump Networks Ltd.
 1877   UNALLOCATED   192.108.199.0/24      1876       Southern Methodist U
18412   UNALLOCATED   211.77.0.0/19         9674       Far EastTone Telecom
63330   RESERVED      213.8.224.0/23        5486       Euronet Digital Comm
63330   RESERVED      213.8.226.0/23        5486       Euronet Digital Comm

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
156.154.16.0/22       7786     Lockheed Martin IMS 
158.0.0.0/13           721     DLA Systems Automation Center
164.234.0.0/18         721     DLA Systems Automation Center
164.234.0.0/16         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 
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        /8:18       /9:3       /10:6       /11:15      /12:61      
/13:127     /14:301     /15:530     /16:7919    /17:2126    /18:3712    
/19:9553    /20:10071   /21:7397    /22:10383   /23:11888   /24:77898   
/25:219     /26:198     /27:115     /28:35      /29:17      /30:68      
/31:0       /32:10      

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

  ASN   No of nets  Total ann.   Description
 6347      734           952      SAVVIS Communications Corpora
18566      712           729      Covad Communications 
 6197      552           721      BellSouth Network Solutions, 
 7018      550          1426      AT&T 
 3356      499           888      Level 3 Communications, LLC 
  702      396           647      UUNET - Commercial IP service
  701      388          1312      UUNET Technologies, Inc. 
 1239      369           938      Sprint 
 5668      336           383      Century Telephone 
27364      336           349      Armstrong Cable Services 
 9583      333           486      Satyam Infoway Ltd.,
 6198      331           449      BellSouth Network Solutions, 
 4766      317           502      Korea Internet Exchange for "
20115      300           566      Charter Communications 
 6467      268           369      E.Spire Communications, Inc. 
 9929      260           329      China Netcom Corp.
14824      254           278      NewSouth Communications Corp.
 3320      248           300      Deutsche Telekom AG
13609      246           289      Choice One Communications Inc
25844      245           245      Skadden, Arps, Slate, Meagher

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

   4:3        12:832      13:1        15:5        16:2        17:3      
  20:7        24:740      32:66       33:2        38:74       40:54     
  44:4        55:1        56:3        57:16       60:5        61:439    
  62:510      63:1887     64:2063     65:2040     66:2713     67:344    
  68:505      69:687      70:64       80:544      81:348      82:189    
  83:115      84:6       128:151     129:171     130:81      131:185    
 132:23      134:178     135:17      136:174     137:55      138:169    
 139:35      140:165     141:105     142:119     143:60      144:99     
 145:42      146:287     147:89      148:418     149:111     150:93     
 151:68      152:162     153:64      154:2       155:128     156:57     
 157:66      158:139     159:147     160:53      161:65      162:384    
 163:79      164:184     165:165     166:111     167:218     168:233    
 169:114     170:285     171:8       192:5555    193:2830    194:2062   
 195:1392    196:579     198:3641    199:3103    200:3549    201:9      
 202:4776    203:5679    204:3119    205:2081    206:2264    207:2503   
 208:2179    209:3057    210:1449    211:574     212:1001    213:1192   
 214:70      215:30      216:3740    217:984     218:172     219:123    
 220:226     221:30      222:98     

End of report


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