Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 19 13:11:54 CDT 2009


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

For historical data, please see http://thyme.apnic.net.

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

Routing Table Report   04:00 +10GMT Sat 20 Jun, 2009

Report Website:     http://thyme.apnic.net
Detailed Analysis:  http://thyme.apnic.net/current/

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

BGP routing table entries examined:                              288799
    Prefixes after maximum aggregation:                          137405
    Deaggregation factor:                                          2.10
    Unique aggregates announced to Internet:                     143140
Total ASes present in the Internet Routing Table:                 31502
    Prefixes per ASN:                                              9.17
Origin-only ASes present in the Internet Routing Table:           27382
Origin ASes announcing only one prefix:                           13343
Transit ASes present in the Internet Routing Table:                4120
Transit-only ASes present in the Internet Routing Table:             91
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      24
    Max AS path prepend of ASN (12026)                               22
Prefixes from unregistered ASNs in the Routing Table:               451
    Unregistered ASNs in the Routing Table:                         131
Number of 32-bit ASNs allocated by the RIRs:                        177
Prefixes from 32-bit ASNs in the Routing Table:                      49
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            847
Number of addresses announced to Internet:                   2052918096
    Equivalent to 122 /8s, 93 /16s and 11 /24s
    Percentage of available address space announced:               55.4
    Percentage of allocated address space announced:               64.1
    Percentage of available address space allocated:               86.4
    Percentage of address space in use by end-sites:               77.4
Total number of prefixes smaller than registry allocations:      142968

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

Prefixes being announced by APNIC Region ASes:                    68732
    Total APNIC prefixes after maximum aggregation:               24540
    APNIC Deaggregation factor:                                    2.80
Prefixes being announced from the APNIC address blocks:           68133
    Unique aggregates announced from the APNIC address blocks:    30927
APNIC Region origin ASes present in the Internet Routing Table:    3666
    APNIC Prefixes per ASN:                                       18.59
APNIC Region origin ASes announcing only one prefix:                999
APNIC Region transit ASes present in the Internet Routing Table:    565
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         18
Number of APNIC addresses announced to Internet:              454152304
    Equivalent to 27 /8s, 17 /16s and 208 /24s
    Percentage of available APNIC address space announced:         84.6

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079
APNIC Address Blocks    58/8,  59/8,  60/8,  61/8, 110/8, 111/8, 112/8,
                       113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8,
                       120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8,
                       180/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
                       219/8, 220/8, 221/8, 222/8,

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

Prefixes being announced by ARIN Region ASes:                    123570
    Total ARIN prefixes after maximum aggregation:                66000
    ARIN Deaggregation factor:                                     1.87
Prefixes being announced from the ARIN address blocks:           124331
    Unique aggregates announced from the ARIN address blocks:     51877
ARIN Region origin ASes present in the Internet Routing Table:    13046
    ARIN Prefixes per ASN:                                         9.53
ARIN Region origin ASes announcing only one prefix:                5010
ARIN Region transit ASes present in the Internet Routing Table:    1278
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          24
Number of ARIN addresses announced to Internet:              1009647680
    Equivalent to 60 /8s, 46 /16s and 0 /24s
    Percentage of available ARIN address space announced:         194.1

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, 39936-40959, 46080-47103
                       53248-55295
ARIN Address Blocks     24/8,  63/8,  64/8,  65/8,  66/8,  67/8,  68/8,
                        69/8,  70/8,  71/8,  72/8,  73/8,  74/8,  75/8,
                        76/8,  96/8,  97/8,  98/8,  99/8, 108/8, 173/8,
                       174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
                       208/8, 209/8, 216/8,

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

Prefixes being announced by RIPE Region ASes:                     66020
    Total RIPE prefixes after maximum aggregation:                39077
    RIPE Deaggregation factor:                                     1.69
Prefixes being announced from the RIPE address blocks:            65133
    Unique aggregates announced from the RIPE address blocks:     43776
RIPE Region origin ASes present in the Internet Routing Table:    13167
    RIPE Prefixes per ASN:                                         4.95
RIPE Region origin ASes announcing only one prefix:                6882
RIPE Region transit ASes present in the Internet Routing Table:    1977
Average RIPE Region AS path length visible:                         3.9
    Max RIPE Region AS path length visible:                          22
Number of RIPE addresses announced to Internet:               482928800
    Equivalent to 28 /8s, 200 /16s and 232 /24s
    Percentage of available RIPE address space announced:         102.8

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
                       40960-45055, 47104-52223
RIPE Address Blocks     62/8,  77/8,  78/8,  79/8,  80/8,  81/8,  82/8,
                        83/8,  84/8,  85/8,  86/8,  87/8,  88/8,  89/8,
                        90/8,  91/8,  92/8,  93/8,  94/8,  95/8, 109/8,
                       178/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
                      

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

Prefixes being announced by LACNIC Region ASes:                   23996
    Total LACNIC prefixes after maximum aggregation:               5996
    LACNIC Deaggregation factor:                                   4.00
Prefixes being announced from the LACNIC address blocks:          23861
    Unique aggregates announced from the LACNIC address blocks:   13403
LACNIC Region origin ASes present in the Internet Routing Table:   1120
    LACNIC Prefixes per ASN:                                      21.30
LACNIC Region origin ASes announcing only one prefix:               359
LACNIC Region transit ASes present in the Internet Routing Table:   188
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        19
Number of LACNIC addresses announced to Internet:              71607680
    Equivalent to 4 /8s, 68 /16s and 165 /24s
    Percentage of available LACNIC address space announced:        71.1

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247
                       plus ERX transfers
LACNIC Address Blocks  186/8, 187/8, 189/8, 190/8, 200/8, 201/8,

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

Prefixes being announced by AfriNIC Region ASes:                   6085
    Total AfriNIC prefixes after maximum aggregation:              1481
    AfriNIC Deaggregation factor:                                  4.11
Prefixes being announced from the AfriNIC address blocks:          6480
    Unique aggregates announced from the AfriNIC address blocks:   2496
AfriNIC Region origin ASes present in the Internet Routing Table:   301
    AfriNIC Prefixes per ASN:                                     21.53
AfriNIC Region origin ASes announcing only one prefix:               93
AfriNIC Region transit ASes present in the Internet Routing Table:   62
Average AfriNIC Region AS path length visible:                      3.8
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:             20152832
    Equivalent to 1 /8s, 51 /16s and 130 /24s
    Percentage of available AfriNIC address space announced:       60.1

AfriNIC AS Blocks      36864-37887 & ERX transfers
AfriNIC Address Blocks  41/8, 197/8,

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4766     1707       6931         402   Korea Telecom (KIX)
17488     1601        131         102   Hathway IP Over Cable Interne
 4755     1214        327         138   TATA Communications formerly 
 9583     1106         87         546   Sify Limited
 4134      890      16912         375   CHINANET-BACKBONE
 7545      803        198         100   TPG Internet Pty Ltd
23577      782         34         665   Korea Telecom (ATM-MPLS)
18101      750        209          32   Reliance Infocom Ltd Internet
24560      718        230         175   Bharti Airtel Ltd.
 9829      714        603          18   BSNL National Internet Backbo

Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6389     4285       3647         324   bellsouth.net, inc. 
 4323     1866       1035         376   Time Warner Telecom
 1785     1694        715         137   PaeTec Communications, Inc.
20115     1650       1449         723   Charter Communications 
 7018     1502       5926        1042   AT&T WorldNet Services
 6478     1376        305         450   AT&T Worldnet Services 
 2386     1265        686         919   AT&T Data Communications Serv
 3356     1206      10980         451   Level 3 Communications, LLC 
11492     1116        208          12   Cable One 
22773     1064       2604          66   Cox Communications, Inc.

Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3292      455       1902         392   TDC Tele Danmark
12479      449        578           6   Uni2 Autonomous System
  702      429       1861         346   UUNET - Commercial IP service
30890      416         88         196   Evolva Telecom
35805      353         40           5   United Telecom of Georgia
 8866      352        109          21   Bulgarian Telecommunication C
 3301      345       1668         308   TeliaNet Sweden
 3215      342       3041         107   France Telecom Transpac
 3320      339       7066         297   Deutsche Telekom AG
29049      317         26           3   AzerSat LLC.

Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151     1464       2863         236   UniNet S.A. de C.V. 
10620      916        208         115   TVCABLE BOGOTA 
22047      599        302          14   VTR PUNTO NET S.A. 
 7303      564        298          87   Telecom Argentina Stet-France
28573      549        563          38   NET Servicos de Comunicao S.A
11830      486        292          54   Instituto Costarricense de El
 6471      443         96          32   ENTEL CHILE S.A. 
11172      442        102          70   Servicios Alestra S.A de C.V 
 7738      404        794          28   Telecomunicacoes da Bahia S.A
 3816      366        188          83   Empresa Nacional de Telecomun

Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8452      987        188           7   TEDATA
24863      888         83          41   LINKdotNET AS number
20858      324         34           5   EgyNet
 3741      277        856         237   The Internet Solution 
 2018      243        215         143   Tertiary Education Network 
 6713      175        166          16   Itissalat Al-MAGHRIB
33783      152         10           8   EEPAD TISP TELECOM & INTERNET
29571      139         15           8   Ci Telecom Autonomous system 
 5536      123          8           9   Internet Egypt Network
33776      116          6           7   Starcomms Nigeria Limited

Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6389     4285       3647         324   bellsouth.net, inc. 
 4323     1866       1035         376   Time Warner Telecom
 4766     1707       6931         402   Korea Telecom (KIX)
 1785     1694        715         137   PaeTec Communications, Inc.
20115     1650       1449         723   Charter Communications 
17488     1601        131         102   Hathway IP Over Cable Interne
 7018     1502       5926        1042   AT&T WorldNet Services
 8151     1464       2863         236   UniNet S.A. de C.V. 
 6478     1376        305         450   AT&T Worldnet Services 
 2386     1265        686         919   AT&T Data Communications Serv

Complete listing at http://thyme.apnic.net/current/data-ASnet

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

  ASN   No of nets  Net Savings Description
 1785      1694        1557      PaeTec Communications, Inc.
17488      1601        1499      Hathway IP Over Cable Interne
 4323      1866        1490      Time Warner Telecom
 4766      1707        1305      Korea Telecom (KIX)
 8151      1464        1228      UniNet S.A. de C.V. 
11492      1116        1104      Cable One 
 4755      1214        1076      TATA Communications formerly 
18566      1062        1052      Covad Communications 
22773      1064         998      Cox Communications, Inc.
 8452       987         980      TEDATA

Complete listing at http://thyme.apnic.net/current/data-CIDRnet

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

Bad AS  Designation  Network              Transit AS  Description
16927   UNALLOCATED   12.0.252.0/23         7018       AT&T WorldNet Servic
15132   UNALLOCATED   12.9.150.0/24         7018       AT&T WorldNet Servic
32567   UNALLOCATED   12.14.170.0/24        7018       AT&T WorldNet Servic
13746   UNALLOCATED   12.24.56.0/24         7018       AT&T WorldNet Servic
32567   UNALLOCATED   12.25.107.0/24        7018       AT&T WorldNet Servic
26973   UNALLOCATED   12.39.152.0/24        7018       AT&T WorldNet Servic
26973   UNALLOCATED   12.39.154.0/23        7018       AT&T WorldNet Servic
26973   UNALLOCATED   12.39.159.0/24        7018       AT&T WorldNet Servic
32326   UNALLOCATED   12.40.49.0/24         7018       AT&T WorldNet Servic
25639   UNALLOCATED   12.41.169.0/24        7018       AT&T WorldNet Servic

Complete listing at http://thyme.apnic.net/current/data-badAS

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
41.223.112.0/22       5713     Telkom SA Ltd 
41.223.176.0/22      36981     >>UNKNOWN<<
41.223.188.0/24      22351     Intelsat 
41.223.189.0/24      26452     Local Communications Networks
62.61.220.0/24       24974     Tachyon Europe BV - Wireless 
62.61.221.0/24       24974     Tachyon Europe BV - Wireless 
63.140.213.0/24      22555     Universal Talkware Corporatio
63.143.251.0/24      22555     Universal Talkware Corporatio
64.31.32.0/19        11955     ServiceCo LLC - Road Runner 
64.31.59.0/24         7017     ServiceCo LLC - Road Runner 

Complete listing at http://thyme.apnic.net/current/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:19       /9:10      /10:20      /11:59      /12:167     
/13:348     /14:603     /15:1157    /16:10519   /17:4741    /18:8103    
/19:16913   /20:20247   /21:20048   /22:25959   /23:25847   /24:151439  
/25:870     /26:1019    /27:540     /28:149     /29:8       /30:6       
/31:0       /32:8       

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

  ASN   No of nets  Total ann.   Description
 6389     2792          4285      bellsouth.net, inc. 
 4766     1400          1707      Korea Telecom (KIX)
17488     1313          1601      Hathway IP Over Cable Interne
 1785     1171          1694      PaeTec Communications, Inc.
11492     1044          1116      Cable One 
18566     1043          1062      Covad Communications 
 2386      978          1265      AT&T Data Communications Serv
 9583      958          1106      Sify Limited
 4323      954          1866      Time Warner Telecom
 8452      920           987      TEDATA

Complete listing at http://thyme.apnic.net/current/data-sXXas-nos

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

   4:13        8:205      12:2235     13:10       15:19       16:3      
  17:4        20:36       24:1083     32:52       34:2        38:572    
  40:97       41:1735     43:1        44:2        47:13       52:4      
  55:2        56:3        57:24       58:577      59:638      60:459    
  61:1078     62:1109     63:2017     64:3727     65:2381     66:3615   
  67:1632     68:829      69:2655     70:556      71:184      72:1672   
  73:2        74:1578     75:172      76:323      77:856      78:557    
  79:349      80:1003     81:833      82:561      83:434      84:632    
  85:1013     86:398      87:656      88:356      89:1446     90:57     
  91:2352     92:345      93:1077     94:1229     95:1064     96:141    
  97:219      98:248      99:23      109:1       110:150     111:18     
 112:134     113:123     114:249     115:336     116:1161    117:529    
 118:301     119:698     120:145     121:755     122:1034    123:701    
 124:992     125:1338    128:221     129:239     130:127     131:410    
 132:72      133:9       134:183     135:38      136:224     137:162    
 138:163     139:80      140:443     141:118     142:385     143:339    
 144:364     145:48      146:381     147:155     148:516     149:237    
 150:176     151:193     152:144     153:142     154:2       155:276    
 156:169     157:301     158:116     159:341     160:284     161:152    
 162:270     163:164     164:482     165:503     166:454     167:359    
 168:664     169:167     170:473     171:39      172:10      173:300    
 174:220     178:1       180:1       183:1       186:26      187:112    
 188:35      189:435     190:2796    192:5782    193:4242    194:3307   
 195:2698    196:1092    198:3606    199:3355    200:5089    201:1286   
 202:7913    203:8208    204:3848    205:2160    206:2437    207:2738   
 208:3888    209:3400    210:2673    211:1121    212:1558    213:1681   
 214:81      215:31      216:4530    217:1318    218:393     219:433    
 220:1226    221:485     222:305    

End of report




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