Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Feb 13 12:17:47 CST 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 14 Feb, 2009

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

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

BGP routing table entries examined:                              279513
    Prefixes after maximum aggregation:                          133074
    Deaggregation factor:                                          2.10
    Unique aggregates announced to Internet:                     136951
Total ASes present in the Internet Routing Table:                 30575
    Prefixes per ASN:                                              9.14
Origin-only ASes present in the Internet Routing Table:           26606
Origin ASes announcing only one prefix:                           12952
Transit ASes present in the Internet Routing Table:                3969
Transit-only ASes present in the Internet Routing Table:             93
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      25
    Max AS path prepend of ASN (18678)                               21
Prefixes from unregistered ASNs in the Routing Table:               530
    Unregistered ASNs in the Routing Table:                         181
Number of 32-bit ASNs allocated by the RIRs:                        100
Prefixes from 32-bit ASNs in the Routing Table:                      15
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            229
Number of addresses announced to Internet:                   2001869152
    Equivalent to 119 /8s, 82 /16s and 25 /24s
    Percentage of available address space announced:               54.0
    Percentage of allocated address space announced:               63.2
    Percentage of available address space allocated:               85.5
    Percentage of address space in use by end-sites:               75.7
Total number of prefixes smaller than registry allocations:      137208

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

Prefixes being announced by APNIC Region ASes:                    64538
    Total APNIC prefixes after maximum aggregation:               23028
    APNIC Deaggregation factor:                                    2.80
Prefixes being announced from the APNIC address blocks:           61376
    Unique aggregates announced from the APNIC address blocks:    27784
APNIC Region origin ASes present in the Internet Routing Table:    3532
    APNIC Prefixes per ASN:                                       17.38
APNIC Region origin ASes announcing only one prefix:                955
APNIC Region transit ASes present in the Internet Routing Table:    550
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         19
Number of APNIC addresses announced to Internet:              401272544
    Equivalent to 23 /8s, 234 /16s and 238 /24s
    Percentage of available APNIC address space announced:         79.7

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,
                       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:                    123310
    Total ARIN prefixes after maximum aggregation:                65208
    ARIN Deaggregation factor:                                     1.89
Prefixes being announced from the ARIN address blocks:            92830
    Unique aggregates announced from the ARIN address blocks:     35508
ARIN Region origin ASes present in the Internet Routing Table:    12768
    ARIN Prefixes per ASN:                                         7.27
ARIN Region origin ASes announcing only one prefix:                4910
ARIN Region transit ASes present in the Internet Routing Table:    1219
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          20
Number of ARIN addresses announced to Internet:               414191136
    Equivalent to 24 /8s, 176 /16s and 14 /24s
    Percentage of available ARIN address space announced:          79.6

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
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:                     63332
    Total RIPE prefixes after maximum aggregation:                37311
    RIPE Deaggregation factor:                                     1.70
Prefixes being announced from the RIPE address blocks:            58109
    Unique aggregates announced from the RIPE address blocks:     38768
RIPE Region origin ASes present in the Internet Routing Table:    12667
    RIPE Prefixes per ASN:                                         4.59
RIPE Region origin ASes announcing only one prefix:                6658
RIPE Region transit ASes present in the Internet Routing Table:    1917
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          22
Number of RIPE addresses announced to Internet:               388763232
    Equivalent to 23 /8s, 44 /16s and 14 /24s
    Percentage of available RIPE address space announced:          82.8

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, 47104-49151
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:                   23309
    Total LACNIC prefixes after maximum aggregation:               5725
    LACNIC Deaggregation factor:                                   4.07
Prefixes being announced from the LACNIC address blocks:          21464
    Unique aggregates announced from the LACNIC address blocks:   11842
LACNIC Region origin ASes present in the Internet Routing Table:   1064
    LACNIC Prefixes per ASN:                                      20.17
LACNIC Region origin ASes announcing only one prefix:               343
LACNIC Region transit ASes present in the Internet Routing Table:   178
Average LACNIC Region AS path length visible:                       4.0
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC addresses announced to Internet:              60696704
    Equivalent to 3 /8s, 158 /16s and 40 /24s
    Percentage of available LACNIC address space announced:        60.3

LACNIC AS Blocks       26592-26623, 27648-28671, 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:                   4526
    Total AfriNIC prefixes after maximum aggregation:              1392
    AfriNIC Deaggregation factor:                                  3.25
Prefixes being announced from the AfriNIC address blocks:          4100
    Unique aggregates announced from the AfriNIC address blocks:   1391
AfriNIC Region origin ASes present in the Internet Routing Table:   284
    AfriNIC Prefixes per ASN:                                     14.44
AfriNIC Region origin ASes announcing only one prefix:               86
AfriNIC Region transit ASes present in the Internet Routing Table:   58
Average AfriNIC Region AS path length visible:                      4.0
    Max AfriNIC Region AS path length visible:                       19
Number of AfriNIC addresses announced to Internet:              9995264
    Equivalent to 0 /8s, 152 /16s and 132 /24s
    Percentage of available AfriNIC address space announced:       29.8

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     1654       6924         381   Korea Telecom (KIX)
17488     1524        110          98   Hathway IP Over Cable Interne
 4755     1208        429         178   TATA Communications formerly 
 9583     1083        107         362   Sify Limited
 4134      904      16247         368   CHINANET-BACKBONE
18101      754        190          27   Reliance Infocom Ltd Internet
 7545      720        158          97   TPG Internet Pty Ltd
 9498      682        297          53   BHARTI BT INTERNET LTD.
24560      671        228         174   Bharti Airtel Ltd.
 9829      639        491          19   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     4368       3433         344   bellsouth.net, inc. 
  209     2833       4035         615   Qwest 
 1785     1786        733         139   PaeTec Communications, Inc.
 4323     1638       1081         375   Time Warner Telecom
20115     1592       1417         726   Charter Communications 
 7018     1439       5877         993   AT&T WorldNet Services
 2386     1253        714         895   AT&T Data Communications Serv
 6478     1235        293         501   AT&T Worldnet Services 
11492     1226        192          12   Cable One 
 3356     1141      10976         439   Level 3 Communications, LLC 

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
 8452     1075        188           7   TEDATA
 3292      443       1762         388   TDC Tele Danmark
30890      439         88         201   SC Kappa Invexim SRL
12479      397        578           6   Uni2 Autonomous System
 3320      339       7064         290   Deutsche Telekom AG
 3301      338       1669         304   TeliaNet Sweden
 8866      336        109          22   Bulgarian Telecommunication C
 3215      331       2946         103   France Telecom Transpac
29049      331         26           3   AzerSat LLC.
 8551      312        288          40   Bezeq International

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     1484       2834         230   UniNet S.A. de C.V. 
10620      747        163          92   TVCABLE BOGOTA 
11830      694        299           9   Instituto Costarricense de El
22047      619        302          14   VTR PUNTO NET S.A. 
 7303      511        255          79   Telecom Argentina Stet-France
 6471      439         95          42   ENTEL CHILE S.A. 
16814      427         27          11   NSS, S.A. 
11172      407        118          75   Servicios Alestra S.A de C.V 
 7738      397        794          28   Telecomunicacoes da Bahia S.A
28573      371        506          23   NET Servicos de Comunicao S.A

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
24863      651         74          39   LINKdotNET AS number
20858      276         34           3   This AS will be used to conne
 3741      271        857         229   The Internet Solution 
 2018      242        215         142   Tertiary Education Network 
33783      150         10           8   EEPAD TISP TELECOM & INTERNET
 6713      144        135          11   Itissalat Al-MAGHRIB
29571      128         15           8   Ci Telecom Autonomous system 
 5536      119          7          20   Internet Egypt Network
33776      118          6           3   Starcomms Nigeria Limited
 5713      115        523          64   Telkom SA Ltd 

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     4368       3433         344   bellsouth.net, inc. 
  209     2833       4035         615   Qwest 
 1785     1786        733         139   PaeTec Communications, Inc.
 4766     1654       6924         381   Korea Telecom (KIX)
 4323     1638       1081         375   Time Warner Telecom
20115     1592       1417         726   Charter Communications 
17488     1524        110          98   Hathway IP Over Cable Interne
 8151     1484       2834         230   UniNet S.A. de C.V. 
 7018     1439       5877         993   AT&T WorldNet Services
 2386     1253        714         895   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
  209      2833        2218      Qwest 
 1785      1786        1647      PaeTec Communications, Inc.
17488      1524        1426      Hathway IP Over Cable Interne
 4766      1654        1273      Korea Telecom (KIX)
 4323      1638        1263      Time Warner Telecom
 8151      1484        1254      UniNet S.A. de C.V. 
11492      1226        1214      Cable One 
 8452      1075        1068      TEDATA
18566      1061        1051      Covad Communications 
 4755      1208        1030      TATA Communications formerly 

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
24.75.116.0/22       10796     ServiceCo LLC - Road Runner 
24.75.160.0/19        7843     Adelphia Corp. 
24.246.0.0/17         7018     AT&T WorldNet Services
24.246.128.0/18       7018     AT&T WorldNet Services
41.220.16.0/20        8668     TelOne Zimbabwe P/L
41.223.112.0/22       5713     Telkom SA Ltd 
41.223.188.0/24      22351     Intelsat 
41.223.189.0/24      26452     Local Communications Networks
62.12.96.0/19        15834     Menanet Communications
62.61.220.0/24       24974     Tachyon Europe BV - Wireless 

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      /11:54      /12:162     
/13:311     /14:575     /15:1128    /16:10327   /17:4585    /18:7857    
/19:16906   /20:19888   /21:19496   /22:24720   /23:24959   /24:146354  
/25:677     /26:830     /27:515     /28:104     /29:8       /30:1       
/31:0       /32:7       

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

  ASN   No of nets  Total ann.   Description
 6389     2844          4368      bellsouth.net, inc. 
  209     1576          2833      Qwest 
 4766     1379          1654      Korea Telecom (KIX)
17488     1305          1524      Hathway IP Over Cable Interne
 1785     1196          1786      PaeTec Communications, Inc.
11492     1188          1226      Cable One 
 8452     1049          1075      TEDATA
18566     1042          1061      Covad Communications 
 2386      941          1253      AT&T Data Communications Serv
 9583      931          1083      Sify Limited

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

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

   4:13        8:181      12:2192     13:2        15:21       16:3      
  17:5        20:35       24:1108     32:51       38:543      40:96     
  41:1805     43:1        44:2        47:11       52:3        55:2      
  56:3        57:25       58:529      59:610      60:460      61:1097   
  62:1120     63:2008     64:3428     65:2431     66:3539     67:1470   
  68:652      69:2479     70:507      71:159      72:1612     73:2      
  74:1420     75:203      76:305      77:777      78:545      79:321    
  80:968      81:823      82:547      83:397      84:604      85:989    
  86:400      87:624      88:349      89:1386     90:42       91:1967   
  92:278      93:1083     94:1097     95:415      96:91       97:179    
  98:192      99:16      109:1       110:1       111:1       112:79     
 113:83      114:175     115:221     116:1161    117:477     118:269    
 119:647     120:137     121:703     122:945     123:514     124:849    
 125:1279    128:223     129:222     130:134     131:410     132:75     
 133:9       134:343     135:37      136:224     137:139     138:145    
 139:78      140:412     141:105     142:377     143:319     144:319    
 145:38      146:373     147:147     148:535     149:227     150:141    
 151:198     152:152     153:132     154:10      155:258     156:171    
 157:294     158:156     159:240     160:282     161:138     162:274    
 163:142     164:516     165:502     166:274     167:351     168:682    
 169:161     170:471     171:39      172:10      173:212     174:64     
 178:1       186:5       187:60      189:305     190:2557    192:5813   
 193:4198    194:3337    195:2694    196:1068    198:3683    199:3279   
 200:5513    201:1492    202:7812    203:7985    204:3859    205:2166   
 206:2354    207:2776    208:3825    209:3477    210:2612    211:1122   
 212:1509    213:1713    214:68      215:30      216:4560    217:1202   
 218:372     219:407     220:1209    221:459     222:306    

End of report




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