Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Nov 7 12:11:43 CST 2008


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 08 Nov, 2008

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

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

BGP routing table entries examined:                              272998
    Prefixes after maximum aggregation:                          131801
    Deaggregation factor:                                          2.07
    Unique aggregates announced to Internet:                     133598
Total ASes present in the Internet Routing Table:                 29730
    Prefixes per ASN:                                              9.18
Origin-only ASes present in the Internet Routing Table:           25883
Origin ASes announcing only one prefix:                           12609
Transit ASes present in the Internet Routing Table:                3847
Transit-only ASes present in the Internet Routing Table:             84
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      18
    Max AS path prepend of ASN ( 3816)                               15
Prefixes from unregistered ASNs in the Routing Table:               574
    Unregistered ASNs in the Routing Table:                         202
Number of 32-bit ASNs allocated by the RIRs:                         62
Prefixes from 32-bit ASNs in the Routing Table:                       9
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            202
Number of addresses announced to Internet:                   1920631360
    Equivalent to 114 /8s, 122 /16s and 130 /24s
    Percentage of available address space announced:               51.8
    Percentage of allocated address space announced:               62.6
    Percentage of available address space allocated:               82.8
    Percentage of address space in use by end-sites:               74.2
Total number of prefixes smaller than registry allocations:      134144

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

Prefixes being announced by APNIC Region ASes:                    62514
    Total APNIC prefixes after maximum aggregation:               23424
    APNIC Deaggregation factor:                                    2.67
Prefixes being announced from the APNIC address blocks:           59420
    Unique aggregates announced from the APNIC address blocks:    26950
APNIC Region origin ASes present in the Internet Routing Table:    3452
    APNIC Prefixes per ASN:                                       17.21
APNIC Region origin ASes announcing only one prefix:                932
APNIC Region transit ASes present in the Internet Routing Table:    535
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         17
Number of APNIC addresses announced to Internet:              380616864
    Equivalent to 22 /8s, 175 /16s and 192 /24s
    Percentage of available APNIC address space announced:         81.0

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, 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:                    123687
    Total ARIN prefixes after maximum aggregation:                64998
    ARIN Deaggregation factor:                                     1.90
Prefixes being announced from the ARIN address blocks:            93211
    Unique aggregates announced from the ARIN address blocks:     35626
ARIN Region origin ASes present in the Internet Routing Table:    12572
    ARIN Prefixes per ASN:                                         7.41
ARIN Region origin ASes announcing only one prefix:                4862
ARIN Region transit ASes present in the Internet Routing Table:    1198
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          16
Number of ARIN addresses announced to Internet:               368498336
    Equivalent to 21 /8s, 246 /16s and 214 /24s
    Percentage of available ARIN address space announced:          75.7

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
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, 173/8, 174/8,
                       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:                     59832
    Total RIPE prefixes after maximum aggregation:                36005
    RIPE Deaggregation factor:                                     1.66
Prefixes being announced from the RIPE address blocks:            55490
    Unique aggregates announced from the RIPE address blocks:     37170
RIPE Region origin ASes present in the Internet Routing Table:    12142
    RIPE Prefixes per ASN:                                         4.57
RIPE Region origin ASes announcing only one prefix:                6395
RIPE Region transit ASes present in the Internet Routing Table:    1842
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          18
Number of RIPE addresses announced to Internet:               377756960
    Equivalent to 22 /8s, 132 /16s and 29 /24s
    Percentage of available RIPE address space announced:          86.6

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, 193/8,
                       194/8, 195/8, 212/8, 213/8, 217/8,

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

Prefixes being announced by LACNIC Region ASes:                   22261
    Total LACNIC prefixes after maximum aggregation:               5619
    LACNIC Deaggregation factor:                                   3.96
Prefixes being announced from the LACNIC address blocks:          20244
    Unique aggregates announced from the LACNIC address blocks:   11339
LACNIC Region origin ASes present in the Internet Routing Table:   1028
    LACNIC Prefixes per ASN:                                      19.69
LACNIC Region origin ASes announcing only one prefix:               338
LACNIC Region transit ASes present in the Internet Routing Table:   169
Average LACNIC Region AS path length visible:                       4.0
    Max LACNIC Region AS path length visible:                        18
Number of LACNIC addresses announced to Internet:              57736192
    Equivalent to 3 /8s, 112 /16s and 252 /24s
    Percentage of available LACNIC address space announced:        57.4

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:                   4151
    Total AfriNIC prefixes after maximum aggregation:              1323
    AfriNIC Deaggregation factor:                                  3.14
Prefixes being announced from the AfriNIC address blocks:          4434
    Unique aggregates announced from the AfriNIC address blocks:   2165
AfriNIC Region origin ASes present in the Internet Routing Table:   266
    AfriNIC Prefixes per ASN:                                     16.67
AfriNIC Region origin ASes announcing only one prefix:               82
AfriNIC Region transit ASes present in the Internet Routing Table:   52
Average AfriNIC Region AS path length visible:                      4.0
    Max AfriNIC Region AS path length visible:                       16
Number of AfriNIC addresses announced to Internet:             12919552
    Equivalent to 0 /8s, 197 /16s and 35 /24s
    Percentage of available AfriNIC address space announced:       25.7

AfriNIC AS Blocks      36864-37887 & ERX transfers
AfriNIC Address Blocks  41/8, 196/8, 197/8,

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
17488     1409         99         102   Hathway IP Over Cable Interne
 4755     1310        516         177   TATA Communications formerly 
 9583     1110         87         476   Sify Limited
 4766      886       6409         364   Korea Telecom (KIX)
 4134      878      13772         361   CHINANET-BACKBONE
23577      815         35         700   Korea Telecom (ATM-MPLS)
18101      783        161          67   Reliance Infocom Ltd Internet
 4780      727        357          63   Digital United Inc.
 9498      694        295          54   BHARTI BT INTERNET LTD.
 4808      630       1172         143   CNCGROUP IP network: China169

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     4356       3417         340   bellsouth.net, inc. 
  209     3042       4035         623   Qwest 
 6298     2079        326         690   Cox Communicatons 
 1785     1693        717         154   PaeTec Communications, Inc.
20115     1660       1452         725   Charter Communications 
 6478     1650        363         193   AT&T Worldnet Services 
 2386     1587        700         898   AT&T Data Communications Serv
 4323     1575       1084         377   Time Warner Telecom
 7018     1402       5869         970   AT&T WorldNet Services
11492     1210        149          16   Cable One 

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      429       1766         381   TDC Tele Danmark
30890      348         94         188   SC Kappa Invexim SRL
 3301      332       1429         303   TeliaNet Sweden
 3215      331       2788          99   France Telecom Transpac
 8866      331        111          23   Bulgarian Telecommunication C
 3320      326       7063         275   Deutsche Telekom AG
 8452      325        188          11   TEDATA
 5462      300        794          27   Telewest Broadband
25233      289         44          24   Awalnet
 8551      287        270          37   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     1400       2848         218   UniNet S.A. de C.V. 
11830      670        299           9   Instituto Costarricense de El
22047      565        270          14   VTR PUNTO NET S.A. 
10620      545        126          59   TVCABLE BOGOTA 
 7303      494        243          69   Telecom Argentina Stet-France
16814      426         27          10   NSS, S.A. 
 6471      420         85          49   ENTEL CHILE S.A. 
11172      405        118          72   Servicios Alestra S.A de C.V 
28573      341        468          23   NET Servicos de Comunicao S.A
14117      330         23           9   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
24863      562         73          45   LINKdotNET AS number
 3741      270        856         226   The Internet Solution 
20858      256         34           3   EgyNet
 2018      238        215         140   Tertiary Education Network 
 6713      142        135          11   Itissalat Al-MAGHRIB
33783      141         10          15   EEPAD TISP TELECOM & INTERNET
 5536      120          8          17   Internet Egypt Network
 5713      114        555          63   Telkom SA Ltd 
29571      113         13           9   Ci Telecom Autonomous system 
33776      109          6           3   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     4356       3417         340   bellsouth.net, inc. 
  209     3042       4035         623   Qwest 
 6298     2079        326         690   Cox Communicatons 
 1785     1693        717         154   PaeTec Communications, Inc.
20115     1660       1452         725   Charter Communications 
 6478     1650        363         193   AT&T Worldnet Services 
 2386     1587        700         898   AT&T Data Communications Serv
 4323     1575       1084         377   Time Warner Telecom
17488     1409         99         102   Hathway IP Over Cable Interne
 7018     1402       5869         970   AT&T WorldNet Services

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

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

  ASN   No of nets  Net Savings Description
  209      3042        2419      Qwest 
 1785      1693        1539      PaeTec Communications, Inc.
 6478      1650        1457      AT&T Worldnet Services 
 6298      2079        1389      Cox Communicatons 
17488      1409        1307      Hathway IP Over Cable Interne
 4323      1575        1198      Time Warner Telecom
11492      1210        1194      Cable One 
 8151      1400        1182      UniNet S.A. de C.V. 
 4755      1310        1133      TATA Communications formerly 
18566      1059        1049      Covad Communications 

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         3549       Global Crossing 
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. 
24.142.40.0/21        7018     AT&T WorldNet Services
24.142.160.0/19       7018     AT&T WorldNet Services
24.246.0.0/17         7018     AT&T WorldNet Services
24.246.128.0/18       7018     AT&T WorldNet Services
41.191.124.0/22       2905     Verizon South Africa
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

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        /8:18       /9:9       /10:18      /11:46      /12:149     
/13:298     /14:538     /15:1067    /16:10137   /17:4427    /18:7668    
/19:16493   /20:19336   /21:19024   /22:24005   /23:24859   /24:142112  
/25:840     /26:1017    /27:832     /28:88      /29:9       /30:1       
/31:0       /32:7       

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

  ASN   No of nets  Total ann.   Description
 6389     2851          4356      bellsouth.net, inc. 
 6298     2053          2079      Cox Communicatons 
  209     1756          3042      Qwest 
 2386     1269          1587      AT&T Data Communications Serv
17488     1198          1409      Hathway IP Over Cable Interne
11492     1187          1210      Cable One 
 1785     1156          1693      PaeTec Communications, Inc.
 6478     1105          1650      AT&T Worldnet Services 
18566     1040          1059      Covad Communications 
 9583      977          1110      Sify Limited

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

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

   4:12        8:154      12:2178     13:2        15:21       16:3      
  17:5        20:35       24:1087     32:54       38:518      40:92     
  41:775      43:1        44:2        47:13       52:3        55:3      
  56:3        57:26       58:516      59:533      60:452      61:1032   
  62:1139     63:2009     64:3277     65:2428     66:3501     67:1313   
  68:808      69:2331     70:878      71:137      72:2065     73:7      
  74:1276     75:167      76:290      77:878      78:517      79:282    
  80:924      81:865      82:609      83:397      84:584      85:1025   
  86:509      87:704      88:347      89:1353     90:25       91:1661   
  92:288      93:963      94:326      95:34       96:86       97:128    
  98:386      99:15      113:40      114:119     115:144     116:1005   
 117:402     118:241     119:516     120:102     121:609     122:855    
 123:444     124:861     125:1226    128:353     129:217     130:135    
 131:407     132:72      133:9       134:186     135:31      136:224    
 137:102     138:145     139:83      140:414     141:111     142:391    
 143:298     144:302     145:52      146:373     147:140     148:605    
 149:211     150:129     151:208     152:150     153:136     154:10     
 155:274     156:174     157:302     158:168     159:282     160:273    
 161:140     162:247     163:135     164:518     165:503     166:361    
 167:341     168:630     169:155     170:454     171:40      172:10     
 173:129     174:1       187:18      188:1       189:308     190:2373   
 192:5825    193:4153    194:3291    195:2639    196:1018    198:3717   
 199:3308    200:5551    201:1479    202:7672    203:8036    204:3927   
 205:2189    206:2310    207:2772    208:3717    209:3459    210:2589   
 211:1093    212:1537    213:1631    214:69      215:25      216:4355   
 217:1252    218:351     219:421     220:1059    221:418     222:302    


End of report




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