[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Apr 9 18:10:08 UTC 2010


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 <pfsinoz at gmail.com>.

Routing Table Report   04:00 +10GMT Sat 10 Apr, 2010

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

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

BGP routing table entries examined:                              317715
    Prefixes after maximum aggregation:                          146886
    Deaggregation factor:                                          2.16
    Unique aggregates announced to Internet:                     154431
Total ASes present in the Internet Routing Table:                 33740
    Prefixes per ASN:                                              9.42
Origin-only ASes present in the Internet Routing Table:           29288
Origin ASes announcing only one prefix:                           14309
Transit ASes present in the Internet Routing Table:                4452
Transit-only ASes present in the Internet Routing Table:            102
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      24
    Max AS path prepend of ASN (32374)                               19
Prefixes from unregistered ASNs in the Routing Table:               555
    Unregistered ASNs in the Routing Table:                         134
Number of 32-bit ASNs allocated by the RIRs:                        513
Prefixes from 32-bit ASNs in the Routing Table:                     548
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            231
Number of addresses announced to Internet:                   2194938368
    Equivalent to 130 /8s, 212 /16s and 26 /24s
    Percentage of available address space announced:               59.2
    Percentage of allocated address space announced:               65.8
    Percentage of available address space allocated:               90.0
    Percentage of address space in use by end-sites:               82.1
Total number of prefixes smaller than registry allocations:      152258

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

Prefixes being announced by APNIC Region ASes:                    76202
    Total APNIC prefixes after maximum aggregation:               26387
    APNIC Deaggregation factor:                                    2.89
Prefixes being announced from the APNIC address blocks:           73052
    Unique aggregates announced from the APNIC address blocks:    31963
APNIC Region origin ASes present in the Internet Routing Table:    3990
    APNIC Prefixes per ASN:                                       18.31
APNIC Region origin ASes announcing only one prefix:               1096
APNIC Region transit ASes present in the Internet Routing Table:    625
Average APNIC Region AS path length visible:                        3.6
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              507394112
    Equivalent to 30 /8s, 62 /16s and 56 /24s
    Percentage of available APNIC address space announced:         79.6

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079
                       55296-56319, 131072-132095
APNIC Address Blocks     1/8,  27/8,  43/8,  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, 133/8, 175/8, 180/8, 182/8,
                       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:                    132971
    Total ARIN prefixes after maximum aggregation:                68737
    ARIN Deaggregation factor:                                     1.93
Prefixes being announced from the ARIN address blocks:           105911
    Unique aggregates announced from the ARIN address blocks:     40478
ARIN Region origin ASes present in the Internet Routing Table:    13621
    ARIN Prefixes per ASN:                                         7.78
ARIN Region origin ASes announcing only one prefix:                5272
ARIN Region transit ASes present in the Internet Routing Table:    1347
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          22
Number of ARIN addresses announced to Internet:               724849952
    Equivalent to 43 /8s, 52 /16s and 85 /24s
    Percentage of available ARIN address space announced:          61.7

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, 393216-394239
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  24/8,  26/8,  28/8,  29/8,
                        30/8,  32/8,  33/8,  34/8,  35/8,  38/8,  40/8,
                        44/8,  45/8,  47/8,  48/8,  50/8,  52/8,  54/8,
                        55/8,  56/8,  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, 107/8,
                       108/8, 173/8, 174/8, 184/8, 199/8, 204/8, 205/8,
                       206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
                      

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

Prefixes being announced by RIPE Region ASes:                     72807
    Total RIPE prefixes after maximum aggregation:                42457
    RIPE Deaggregation factor:                                     1.71
Prefixes being announced from the RIPE address blocks:            65774
    Unique aggregates announced from the RIPE address blocks:     43269
RIPE Region origin ASes present in the Internet Routing Table:    14329
    RIPE Prefixes per ASN:                                         4.59
RIPE Region origin ASes announcing only one prefix:                7421
RIPE Region transit ASes present in the Internet Routing Table:    2143
Average RIPE Region AS path length visible:                         3.9
    Max RIPE Region AS path length visible:                          21
Number of RIPE addresses announced to Internet:               420904608
    Equivalent to 25 /8s, 22 /16s and 126 /24s
    Percentage of available RIPE address space announced:          78.4

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, 196608-197631
RIPE Address Blocks      2/8,  25/8,  46/8,  51/8,  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:                   28079
    Total LACNIC prefixes after maximum aggregation:               6725
    LACNIC Deaggregation factor:                                   4.18
Prefixes being announced from the LACNIC address blocks:          26436
    Unique aggregates announced from the LACNIC address blocks:   13768
LACNIC Region origin ASes present in the Internet Routing Table:   1266
    LACNIC Prefixes per ASN:                                      20.88
LACNIC Region origin ASes announcing only one prefix:               419
LACNIC Region transit ASes present in the Internet Routing Table:   216
Average LACNIC Region AS path length visible:                       4.0
    Max LACNIC Region AS path length visible:                        24
Number of LACNIC addresses announced to Internet:              72079872
    Equivalent to 4 /8s, 75 /16s and 218 /24s
    Percentage of available LACNIC address space announced:        71.6

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       262144-263167 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:                   6671
    Total AfriNIC prefixes after maximum aggregation:              1791
    AfriNIC Deaggregation factor:                                  3.72
Prefixes being announced from the AfriNIC address blocks:          5006
    Unique aggregates announced from the AfriNIC address blocks:   1510
AfriNIC Region origin ASes present in the Internet Routing Table:   354
    AfriNIC Prefixes per ASN:                                     14.14
AfriNIC Region origin ASes announcing only one prefix:              101
AfriNIC Region transit ASes present in the Internet Routing Table:   79
Average AfriNIC Region AS path length visible:                      3.8
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:             15066112
    Equivalent to 0 /8s, 229 /16s and 228 /24s
    Percentage of available AfriNIC address space announced:       44.9

AfriNIC AS Blocks      36864-37887, 327680-328703 & 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     1840       8405         478   Korea Telecom (KIX)
17488     1309        136         131   Hathway IP Over Cable Interne
 4755     1301        289         146   TATA Communications formerly 
 7545     1099        201         105   TPG Internet Pty Ltd
 4134     1027      20377         397   CHINANET-BACKBONE
17974      998        281          18   PT TELEKOMUNIKASI INDONESIA
 9583      985         72         485   Sify Limited
24560      875        303         168   Bharti Airtel Ltd., Telemedia
 4808      845       1586         214   CNCGROUP IP network: China169
 9829      829        686          26   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     4014       3838         296   bellsouth.net, inc. 
 4323     3836       1099         398   Time Warner Telecom
 1785     1754        699         132   PaeTec Communications, Inc.
 7018     1576       5760        1004   AT&T WorldNet Services
20115     1528       1502         657   Charter Communications 
 2386     1325        618         935   AT&T Data Communications Serv
 3356     1232      10956         427   Level 3 Communications, LLC 
 6478     1187        247         182   AT&T Worldnet Services 
11492     1150        222          14   Cable One 
22773     1139       2605          71   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
35805      613         56           6   United Telecom of Georgia
 3292      448       1899         390   TDC Tele Danmark
30890      440        100         204   Evolva Telecom
  702      422       1870         333   UUNET - Commercial IP service
 8551      401        356          37   Bezeq International
 8866      397        117          18   Bulgarian Telecommunication C
 3320      365       7072         319   Deutsche Telekom AG
 3301      355       1413         316   TeliaNet Sweden
 3215      348       3238         104   France Telecom Transpac
12479      331        576           5   Uni2 Autonomous System

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     1537       2956         240   UniNet S.A. de C.V. 
10620     1020        229         169   TVCABLE BOGOTA 
28573      898        732          85   NET Servicos de Comunicao S.A
 7303      698        361         100   Telecom Argentina Stet-France
 6503      542        171         212   AVANTEL, S.A. 
22047      540        310          15   VTR PUNTO NET S.A. 
18881      530        268          11   Global Village Telecom 
 7738      477        922          30   Telecomunicacoes da Bahia S.A
 3816      457        195          70   Empresa Nacional de Telecomun
14117      455         30          13   Telefonica del Sur 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
 8452      936        445          10   TEDATA
24863      707        144          41   LINKdotNET AS number
36992      552        120         162   Etisalat MISR
 3741      274        853         233   The Internet Solution 
33776      262         14          11   Starcomms Nigeria Limited
 2018      215        230         111   Tertiary Education Network 
 6713      176        167          12   Itissalat Al-MAGHRIB
29571      172         19           9   Ci Telecom Autonomous system 
24835      138         78          11   RAYA Telecom - Egypt
29975      133        506          14   Vodacom

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     4014       3838         296   bellsouth.net, inc. 
 4323     3836       1099         398   Time Warner Telecom
 4766     1840       8405         478   Korea Telecom (KIX)
 1785     1754        699         132   PaeTec Communications, Inc.
 7018     1576       5760        1004   AT&T WorldNet Services
 8151     1537       2956         240   UniNet S.A. de C.V. 
20115     1528       1502         657   Charter Communications 
 2386     1325        618         935   AT&T Data Communications Serv
17488     1309        136         131   Hathway IP Over Cable Interne
 4755     1301        289         146   TATA Communications formerly 

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

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

  ASN   No of nets  Net Savings Description
 4323      3836        3438      Time Warner Telecom
 1785      1754        1622      PaeTec Communications, Inc.
 4766      1840        1362      Korea Telecom (KIX)
 8151      1537        1297      UniNet S.A. de C.V. 
17488      1309        1178      Hathway IP Over Cable Interne
 4755      1301        1155      TATA Communications formerly 
11492      1150        1136      Cable One 
22773      1139        1068      Cox Communications, Inc.
18566      1059        1049      Covad Communications 
 6478      1187        1005      AT&T Worldnet Services 

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  12.39.155.0/24        7018       AT&T WorldNet Servic
26973   UNALLOCATED  12.39.159.0/24        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
2.0.0.0/16           12654     RIPE NCC RIS Project
2.1.0.0/21           12654     RIPE NCC RIS Project
2.1.24.0/24          12654     RIPE NCC RIS Project
41.190.64.0/22       28683     Office des Postes et telecomm
41.202.96.0/19       29571     Ci Telecom Autonomous system 
41.220.144.0/20      36918     ORASCOM TELECOM ALGERIE VSAT
41.220.159.0/24      36918     ORASCOM TELECOM ALGERIE VSAT
41.222.79.0/24       36938     >>UNKNOWN<<
41.223.92.0/22       36936     >>UNKNOWN<<
41.223.188.0/24      22351     Intelsat 

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      /10:26      /11:66      /12:192     
/13:391     /14:679     /15:1245    /16:11039   /17:5209    /18:8878    
/19:18275   /20:22332   /21:22373   /22:29149   /23:28845   /24:166014  
/25:973     /26:1208    /27:631     /28:137     /29:9       /30:7       
/31:0       /32:8       

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

  ASN   No of nets  Total ann.   Description
 6389     2581          4014      bellsouth.net, inc. 
 4323     2346          3836      Time Warner Telecom
 4766     1476          1840      Korea Telecom (KIX)
 1785     1216          1754      PaeTec Communications, Inc.
11492     1061          1150      Cable One 
17488     1061          1309      Hathway IP Over Cable Interne
18566     1040          1059      Covad Communications 
 7018      945          1576      AT&T WorldNet Services
10620      926          1020      TVCABLE BOGOTA 
 3356      840          1232      Level 3 Communications, LLC 

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

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

   2:1         4:13        8:257      12:2002     13:10       15:23     
  16:3        17:8        20:26       24:1414     27:32       32:48     
  33:12       38:655      40:100      41:2020     44:3        46:1      
  47:26       52:6        55:5        56:2        57:24       58:711    
  59:580      60:433      61:1155     62:1037     63:1971     64:3819   
  65:2358     66:4167     67:1788     68:1052     69:2778     70:707    
  71:238      72:1842     73:2        74:2161     75:246      76:311    
  77:843      78:603      79:397      80:988      81:774      82:458    
  83:454      84:693      85:1031     86:382      87:686      88:327    
  89:1525     90:85       91:2713     92:438      93:1118     94:1389   
  95:577      96:233      97:297      98:541      99:26      109:447    
 110:294     111:481     112:244     113:261     114:385     115:612    
 116:1022    117:629     118:413     119:921     120:148     121:859    
 122:1401    123:873     124:1104    125:1291    128:208     129:205    
 130:160     131:560     132:246     133:17      134:196     135:44     
 136:223     137:168     138:254     139:94      140:479     141:137    
 142:375     143:379     144:468     145:52      146:428     147:168    
 148:583     149:283     150:151     151:171     152:274     153:170    
 154:2       155:327     156:199     157:324     158:107     159:364    
 160:315     161:177     162:269     163:169     164:401     165:521    
 166:509     167:404     168:801     169:157     170:735     171:48     
 172:2       173:627     174:651     175:73      178:28      180:373    
 181:4       182:34      183:241     184:28      186:347     187:290    
 188:1224    189:731     190:3605    192:5732    193:4642    194:3346   
 195:2794    196:1170    198:3557    199:3392    200:5259    201:1496   
 202:7955    203:8315    204:4060    205:2297    206:2523    207:3014   
 208:3893    209:3449    210:2516    211:1241    212:1707    213:1679   
 214:595     215:72      216:4471    217:1521    218:486     219:425    
 220:1112    221:389     222:316    

End of report



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