[afnog] Weekly Routing Table Report

Routing Table Analysis cscora at apnic.net
Sat Aug 7 04:06:21 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 07 Aug, 2004

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

BGP routing table entries examined:                              143817
    Prefixes after maximum aggregation:                           85974
    Unique aggregates announced to Internet:                      69046
Total ASes present in the Internet Routing Table:                 17741
Origin-only ASes present in the Internet Routing Table:           15390
Origin ASes announcing only one prefix:                            7226
Transit ASes present in the Internet Routing Table:                2351
Transit-only ASes present in the Internet Routing Table:             76
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:                 4
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             16
Number of addresses announced to Internet:                   1308190496
    Equivalent to 77 /8s, 249 /16s and 103 /24s
    Percentage of available address space announced:               35.3
    Percentage of allocated address space announced:               57.0
    Percentage of available address space allocated:               61.9
Total number of prefixes smaller than registry allocations:       66236

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

Prefixes being announced by APNIC Region ASes:                    27508
    Total APNIC prefixes after maximum aggregation:               13952
Prefixes being announced from the APNIC address blocks:           25752
    Unique aggregates announced from the APNIC address blocks:    14069
APNIC Region origin ASes present in the Internet Routing Table:    2090
APNIC Region origin ASes announcing only one prefix:                628
APNIC Region transit ASes present in the Internet Routing Table:    328
Average APNIC Region AS path length visible:                        4.9
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              154905472
    Equivalent to 9 /8s, 59 /16s and 171 /24s
    Percentage of available APNIC address space announced:         70.7

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:                     82367
    Total ARIN prefixes after maximum aggregation:                50319
Prefixes being announced from the ARIN address blocks:            63781
    Unique aggregates announced from the ARIN address blocks:     22146
ARIN Region origin ASes present in the Internet Routing Table:     9382
ARIN Region origin ASes announcing only one prefix:                3378
ARIN Region transit ASes present in the Internet Routing Table:     922
Average ARIN Region AS path length visible:                         4.6
    Max ARIN Region AS path length visible:                          18
Number of ARIN addresses announced to Internet:               228675232
    Equivalent to 13 /8s, 161 /16s and 78 /24s
    Percentage of available ARIN address space announced:          68.2

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:                     26521
    Total RIPE prefixes after maximum aggregation:                18762
Prefixes being announced from the RIPE address blocks:            23342
    Unique aggregates announced from the RIPE address blocks:     15506
RIPE Region origin ASes present in the Internet Routing Table:     5716
RIPE Region origin ASes announcing only one prefix:                3086
RIPE Region transit ASes present in the Internet Routing Table:     982
Average RIPE Region AS path length visible:                         5.4
    Max RIPE Region AS path length visible:                          26
Number of RIPE addresses announced to Internet:               168597824
    Equivalent to 10 /8s, 12 /16s and 153 /24s
    Percentage of available RIPE address space announced:          59.1

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:                    6199
    Total LACNIC prefixes after maximum aggregation:               2264
Prefixes being announced from the LACNIC address blocks:           5950
    Unique aggregates announced from the LACNIC address blocks:    3591
LACNIC Region origin ASes present in the Internet Routing Table:    387
LACNIC Region origin ASes announcing only one prefix:               113
LACNIC Region transit ASes present in the Internet Routing Table:    76
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        15
Number of LACNIC addresses announced to Internet:              15471872
    Equivalent to 0 /8s, 236 /16s and 21 /24s
    Percentage of available LACNIC address space announced:        46.1

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

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

Prefixes being announced by AfriNIC Region ASes:                   1218
    Total AfriNIC prefixes after maximum aggregation:               677
Prefixes being announced from the AfriNIC address blocks:           824
    Unique aggregates announced from the AfriNIC address blocks:    652
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:                       15
Number of AfriNIC addresses announced to Internet:              1977344
    Equivalent to 0 /8s, 30 /16s and 44 /24s
    Percentage of available AfriNIC address space announced:       11.8

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      818       4097         153   Data Communications Bureau
 1221      817       1184         590   Telstra Pty Ltd
 4766      548       2897         264   Korea Internet Exchange for "
 9583      514         41          97   Satyam Infoway Ltd.,
 4755      363        133          51   Videsh Sanchar Nigam Ltd. Aut
 9443      355         70          80   Primus Telecommunications
 2907      353       1840         327   SINET Japan
17676      341       5084          33   XTAGE CORPORATION
 9929      333        159          31   China Netcom Corp.
17557      326         23         162   Pakistan Telecom
  703      317        342         244   UUNET
 2764      289        274         236   connect.com.au pty ltd
 7474      264        268         202   Optus Communications Pty Ltd
17633      238         56           6   ASN for Shandong Provincial N
 9942      237         71         130   COMindico Australia
 4802      227         25         140   Wantree Development
 9800      226        370          64   CHINA UNICOM
 9498      222         49          52   BHARTI BT INTERNET LTD.
10036      202         18         183   C&M Communication Co. Ltd.
 4837      196       2023         106   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1400       6822         976   AT&T WorldNet Services
  701     1297       8426         933   UUNET Technologies, Inc. 
 6347      951        390         100   SAVVIS Communications Corpora
 1239      938       2877         626   Sprint 
 3356      883      10924         667   Level 3 Communications, LLC 
 4323      769        587         210   Time Warner Telecom
 6197      758        495         309   BellSouth Network Solutions, 
18566      739        193           8   Covad Communications 
  209      614       3445         496   Qwest 
  721      602      20826         282   DLA Systems Automation Center
20115      568        377         293   Charter Communications 
 7843      514        677         129   Adelphia Corp. 
  852      511       1142         399   Telus Advanced Communications
 6198      452        395         205   BellSouth Network Solutions, 
  705      429        163         271   UUNET Technologies, Inc. 
 7132      426       7921         370   SBC Internet Services
 2386      410        534         230   AT&T Data Communications Serv
22773      392        796          64   Cox Communications, Inc. Atla
 4355      390        323         101   EarthLink, Inc. 
  376      384        363         113   Reseau Interordinateurs Scien

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      645       2019         536   UUNET - Commercial IP service
 3320      302       2469         239   Deutsche Telekom AG
 3301      282       1098         271   TeliaNet Sweden
 8220      278        448         265   COLT Internet - International
  680      244       2025         239   DFN-IP service G-WiN
 1257      216        747         185   SWIPnet Swedish IP Network
 3246      216        484         213   Song Networks
13083      216         51           8   Mannesmann Datenverarbeitung 
 5515      199        842         145   Sonera Solution Autonomous Sy
 8708      194        113         175   Romania Data Systems S.A.
 3215      182        892          77   France Telecom Transpac
  786      177       1794         177   The JANET IP Service
25186      173        156         114   France Telecom Transpac's Tra
 5400      152        208         123   BT Ignite European Backbone
 6746      152         29         129   Dynamic Network Technologies,
  719      150        288         102   LANLINK autonomous system
 3269      141       1163          64   TELECOM ITALIA
 8866      133         15          14   Bulgarian Telecommunication C
 3303      130        609         129   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      350         83          52   Servicios Alestra S.A de C.V 
 6140      334        137          64   ImpSat
 8151      286        391         132   UniNet S.A. de C.V. 
16814      204         13           7   NSS, S.A. 
 6147      188         86          20   Telefonica Del Peru 
 6505      136         90          94   Global One Communicaoes Ltda 
 6503      135        202          91   AVANTEL, S.A. 
11664      134         11          22   Keytech SA 
 7303      121         55          19   Telecom Argentina Stet-France
11556      100         63          22   Cable-Wireless Panama 
11992       90          9          30   Integrated Systems 
14420       82          6          32   ANDINATEL S.A. 
 6535       81          5          16   Chilesat Servicios  Empresari
11311       81          7          19   Sinectis S.A. 
15311       75         19          37   Telefonica Empresas 
 5639       71          8           8   Telecommunications Services o
 4270       70         18           9   Red de Interconexion Universi
14117       69          5           4   Telefonica del Sur S.A. 
11340       68          5          37   Red Universitaria Nacional 
10292       67          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      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       32         18           5   RAYA Telecom - Egypt
 9129       29          3           4   UUNET Kenya
14988       29         16           1   Botswana Telecommunications C
 6713       26         38           9   Itissalat Al-MAGHRIB
 8524       26          2           4   AUCEGYPT Autonomous System
16637       26          9          19   Johnnic e-Ventures 
 5713       25        125          23   Telkom SA Ltd 
12455       23          4           2   Jambonet Autonomous system
10798       18          1          12   Standard Bank of South Africa
 8346       15          7          14   SONATEL-AS Autonomous System
12258       15          3          10   Vodacom Internet Company 
15706       15          4           2   Sudatel Internet Exchange Aut
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
 6347       951         851      SAVVIS Communications Corpora
18566       739         731      Covad Communications 
 4134       818         665      Data Communications Bureau
 4323       769         559      Time Warner Telecom
 6197       758         449      BellSouth Network Solutions, 
 9583       514         417      Satyam Infoway Ltd.,
 7843       514         385      Adelphia Corp. 
  701      1297         364      UUNET Technologies, Inc. 
 5668       382         364      Century Telephone 
27364       350         331      Armstrong Cable Services 
22909       359         329      Comcast Cable Corporation 
22773       392         328      Cox Communications, Inc. Atla
 6467       354         322      E.Spire Communications, Inc. 
  721       602         320      DLA Systems Automation Center
 1239       938         312      Sprint 
 4755       363         312      Videsh Sanchar Nigam Ltd. Aut
17676       341         308      XTAGE CORPORATION
 9929       333         302      China Netcom Corp.
11172       350         298      Servicios Alestra S.A de C.V 
 4355       390         289      EarthLink, Inc. 

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

Bad AS  Designation  Network              Transit AS  Description
65217   PRIVATE       128.101.58.0/28        217       University of Minnes
 1877   UNALLOCATED   192.108.199.0/24      1876       Southern Methodist U
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
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        /8:18       /9:3       /10:6       /11:15      /12:61      
/13:129     /14:301     /15:533     /16:7950    /17:2133    /18:3732    
/19:9649    /20:10098   /21:7482    /22:10401   /23:11942   /24:78660   
/25:226     /26:193     /27:113     /28:48      /29:18      /30:65      
/31:0       /32:41      

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

  ASN   No of nets  Total ann.   Description
 6347      730           951      SAVVIS Communications Corpora
18566      722           739      Covad Communications 
 6197      579           758      BellSouth Network Solutions, 
 7018      537          1400      AT&T WorldNet Services
 3356      500           883      Level 3 Communications, LLC 
  702      401           645      UUNET - Commercial IP service
  701      366          1297      UUNET Technologies, Inc. 
 1239      366           938      Sprint 
 9583      359           514      Satyam Infoway Ltd.,
 4766      356           548      Korea Internet Exchange for "
27364      336           350      Armstrong Cable Services 
 5668      334           382      Century Telephone 
 6198      334           452      BellSouth Network Solutions, 
20115      301           568      Charter Communications 
 9929      265           333      China Netcom Corp.
 6467      259           354      E.Spire Communications, Inc. 
13609      257           300      Choice One Communications Inc
 6517      255           281      Yipes Communications, Inc. 
14824      253           277      NewSouth Communications Corp.
 3320      249           302      Deutsche Telekom AG

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

   4:3         8:2        12:832      13:1        15:5        16:2      
  17:3        20:9        24:733      32:66       33:2        38:78     
  40:54       44:4        55:1        56:3        57:16       60:6      
  61:440      62:513      63:1897     64:2199     65:2051     66:2751   
  67:348      68:515      69:681      70:64       80:536      81:370    
  82:190      83:126      84:17      128:176     129:171     130:84     
 131:183     132:23      134:184     135:17      136:174     137:54     
 138:170     139:35      140:165     141:107     142:118     143:60     
 144:100     145:42      146:290     147:94      148:418     149:110    
 150:88      151:70      152:162     153:67      154:2       155:129    
 156:57      157:67      158:137     159:147     160:54      161:71     
 162:387     163:78      164:177     165:162     166:111     167:217    
 168:254     169:114     170:282     171:9       192:5578    193:2846   
 194:2078    195:1418    196:583     198:3663    199:3254    200:3646   
 201:11      202:4783    203:5650    204:3125    205:2076    206:2276   
 207:2508    208:2164    209:3059    210:1423    211:575     212:1003   
 213:1202    214:86      215:30      216:3787    217:991     218:177    
 219:127     220:245     221:30      222:131    

End of report


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