Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jul 3 13:12:21 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 04 Jul, 2009

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

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

BGP routing table entries examined:                              289924
    Prefixes after maximum aggregation:                          137398
    Deaggregation factor:                                          2.11
    Unique aggregates announced to Internet:                     143783
Total ASes present in the Internet Routing Table:                 31638
    Prefixes per ASN:                                              9.16
Origin-only ASes present in the Internet Routing Table:           27506
Origin ASes announcing only one prefix:                           13385
Transit ASes present in the Internet Routing Table:                4132
Transit-only ASes present in the Internet Routing Table:             99
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:               478
    Unregistered ASNs in the Routing Table:                         134
Number of 32-bit ASNs allocated by the RIRs:                        193
Prefixes from 32-bit ASNs in the Routing Table:                      65
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            345
Number of addresses announced to Internet:                   2063493440
    Equivalent to 122 /8s, 254 /16s and 105 /24s
    Percentage of available address space announced:               55.7
    Percentage of allocated address space announced:               64.4
    Percentage of available address space allocated:               86.4
    Percentage of address space in use by end-sites:               78.1
Total number of prefixes smaller than registry allocations:      143430

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

Prefixes being announced by APNIC Region ASes:                    69259
    Total APNIC prefixes after maximum aggregation:               24587
    APNIC Deaggregation factor:                                    2.82
Prefixes being announced from the APNIC address blocks:           68669
    Unique aggregates announced from the APNIC address blocks:    31173
APNIC Region origin ASes present in the Internet Routing Table:    3691
    APNIC Prefixes per ASN:                                       18.60
APNIC Region origin ASes announcing only one prefix:               1002
APNIC Region transit ASes present in the Internet Routing Table:    566
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              463130240
    Equivalent to 27 /8s, 154 /16s and 206 /24s
    Percentage of available APNIC address space announced:         86.3

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:                    123352
    Total ARIN prefixes after maximum aggregation:                65801
    ARIN Deaggregation factor:                                     1.87
Prefixes being announced from the ARIN address blocks:           124082
    Unique aggregates announced from the ARIN address blocks:     51892
ARIN Region origin ASes present in the Internet Routing Table:    13054
    ARIN Prefixes per ASN:                                         9.51
ARIN Region origin ASes announcing only one prefix:                5015
ARIN Region transit ASes present in the Internet Routing Table:    1280
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          24
Number of ARIN addresses announced to Internet:              1009850048
    Equivalent to 60 /8s, 49 /16s and 22 /24s
    Percentage of available ARIN address space announced:         194.2

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:                     66420
    Total RIPE prefixes after maximum aggregation:                39205
    RIPE Deaggregation factor:                                     1.69
Prefixes being announced from the RIPE address blocks:            66083
    Unique aggregates announced from the RIPE address blocks:     44429
RIPE Region origin ASes present in the Internet Routing Table:    13245
    RIPE Prefixes per ASN:                                         4.99
RIPE Region origin ASes announcing only one prefix:                6913
RIPE Region transit ASes present in the Internet Routing Table:    1987
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          22
Number of RIPE addresses announced to Internet:               496075456
    Equivalent to 29 /8s, 145 /16s and 130 /24s
    Percentage of available RIPE address space announced:         105.6

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, 47104-52223
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:                   24366
    Total LACNIC prefixes after maximum aggregation:               5991
    LACNIC Deaggregation factor:                                   4.07
Prefixes being announced from the LACNIC address blocks:          24217
    Unique aggregates announced from the LACNIC address blocks:   13477
LACNIC Region origin ASes present in the Internet Routing Table:   1135
    LACNIC Prefixes per ASN:                                      21.34
LACNIC Region origin ASes announcing only one prefix:               362
LACNIC Region transit ASes present in the Internet Routing Table:   187
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        21
Number of LACNIC addresses announced to Internet:              71888384
    Equivalent to 4 /8s, 72 /16s and 238 /24s
    Percentage of available LACNIC address space announced:        71.4

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:                   6117
    Total AfriNIC prefixes after maximum aggregation:              1492
    AfriNIC Deaggregation factor:                                  4.10
Prefixes being announced from the AfriNIC address blocks:          6514
    Unique aggregates announced from the AfriNIC address blocks:   2536
AfriNIC Region origin ASes present in the Internet Routing Table:   303
    AfriNIC Prefixes per ASN:                                     21.50
AfriNIC Region origin ASes announcing only one prefix:               93
AfriNIC Region transit ASes present in the Internet Routing Table:   64
Average AfriNIC Region AS path length visible:                      3.8
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:             20174592
    Equivalent to 1 /8s, 51 /16s and 215 /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     1702       6934         405   Korea Telecom (KIX)
17488     1537        138          95   Hathway IP Over Cable Interne
 4755     1213        308         144   TATA Communications formerly 
 9583     1132         91         548   Sify Limited
 4134      977      17080         375   CHINANET-BACKBONE
 7545      806        198         101   TPG Internet Pty Ltd
 9829      797        611          14   BSNL National Internet Backbo
23577      783         34         666   Korea Telecom (ATM-MPLS)
18101      754        200          32   Reliance Infocom Ltd Internet
24560      724        230         172   Bharti Airtel Ltd.

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     4266       3643         323   bellsouth.net, inc. 
 4323     1887       1047         384   Time Warner Telecom
 1785     1705        714         139   PaeTec Communications, Inc.
 7018     1503       5909        1046   AT&T WorldNet Services
20115     1396       1462         687   Charter Communications 
 2386     1267        671         921   AT&T Data Communications Serv
 6478     1206        274         317   AT&T Worldnet Services 
 3356     1199      10961         443   Level 3 Communications, LLC 
11492     1122        208          12   Cable One 
22773     1071       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
12479      474        578           6   Uni2 Autonomous System
 3292      457       1902         394   TDC Tele Danmark
  702      429       1861         345   UUNET - Commercial IP service
30890      414         88         194   Evolva Telecom
35805      354         40           5   United Telecom of Georgia
 8866      351        109          21   Bulgarian Telecommunication C
 3301      347       1684         309   TeliaNet Sweden
 3320      344       7067         300   Deutsche Telekom AG
 3215      342       3049         107   France Telecom Transpac
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     1465       2883         232   UniNet S.A. de C.V. 
10620      921        211         103   TVCABLE BOGOTA 
28573      611        570          31   NET Servicos de Comunicao S.A
22047      601        302          14   VTR PUNTO NET S.A. 
 7303      572        304          90   Telecom Argentina Stet-France
11830      487        293          55   Instituto Costarricense de El
 6471      439         96          31   ENTEL CHILE S.A. 
11172      439         99          68   Servicios Alestra S.A de C.V 
 7738      404        794          28   Telecomunicacoes da Bahia S.A
 3816      373        191          85   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      994        188           7   TEDATA
24863      892         88          46   LINKdotNET AS number
20858      319         34           5   EgyNet
 3741      276        856         236   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
 5713      116        508          67   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     4266       3643         323   bellsouth.net, inc. 
 4323     1887       1047         384   Time Warner Telecom
 1785     1705        714         139   PaeTec Communications, Inc.
 4766     1702       6934         405   Korea Telecom (KIX)
17488     1537        138          95   Hathway IP Over Cable Interne
 7018     1503       5909        1046   AT&T WorldNet Services
 8151     1465       2883         232   UniNet S.A. de C.V. 
20115     1396       1462         687   Charter Communications 
 2386     1267        671         921   AT&T Data Communications Serv
 4755     1213        308         144   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
 1785      1705        1566      PaeTec Communications, Inc.
 4323      1887        1503      Time Warner Telecom
17488      1537        1442      Hathway IP Over Cable Interne
 4766      1702        1297      Korea Telecom (KIX)
 8151      1465        1233      UniNet S.A. de C.V. 
11492      1122        1110      Cable One 
 4755      1213        1069      TATA Communications formerly 
18566      1062        1052      Covad Communications 
22773      1071        1005      Cox Communications, Inc.
 8452       994         987      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
41.223.92.0/22       36936     >>UNKNOWN<<
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 

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      /10:22      /11:58      /12:168     
/13:351     /14:607     /15:1164    /16:10513   /17:4752    /18:8211    
/19:17006   /20:20404   /21:20177   /22:26229   /23:25863   /24:151711  
/25:899     /26:1028    /27:559     /28:150     /29:8       /30:7       
/31:0       /32:8       

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

  ASN   No of nets  Total ann.   Description
 6389     2779          4266      bellsouth.net, inc. 
 4766     1401          1702      Korea Telecom (KIX)
17488     1283          1537      Hathway IP Over Cable Interne
 1785     1177          1705      PaeTec Communications, Inc.
11492     1048          1122      Cable One 
18566     1043          1062      Covad Communications 
 9583      984          1132      Sify Limited
 2386      983          1267      AT&T Data Communications Serv
 4323      961          1887      Time Warner Telecom
 8452      918           994      TEDATA

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

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

   4:13        8:207      12:2143     13:8        15:19       16:3      
  17:4        20:34       24:1096     32:51       34:2        38:575    
  40:97       41:1746     43:1        44:2        47:22       52:5      
  55:2        56:3        57:24       58:578      59:653      60:461    
  61:1079     62:1107     63:2041     64:3684     65:2415     66:3594   
  67:1619     68:806      69:2664     70:555      71:146      72:1676   
  73:2        74:1611     75:170      76:335      77:851      78:557    
  79:360      80:978      81:835      82:563      83:456      84:634    
  85:1035     86:400      87:676      88:353      89:1448     90:50     
  91:2377     92:353      93:1125     94:1244     95:1116     96:148    
  97:215      98:253      99:23      110:170     111:49      112:168    
 113:136     114:261     115:304     116:1159    117:538     118:338    
 119:708     120:147     121:777     122:1045    123:705     124:979    
 125:1389    128:218     129:238     130:127     131:400     132:74     
 133:9       134:185     135:39      136:224     137:162     138:164    
 139:78      140:442     141:119     142:391     143:351     144:365    
 145:48      146:386     147:154     148:520     149:235     150:178    
 151:193     152:145     153:145     154:2       155:274     156:165    
 157:301     158:117     159:344     160:284     161:153     162:271    
 163:162     164:479     165:501     166:456     167:359     168:664    
 169:174     170:479     171:41      172:10      173:306     174:233    
 178:1       186:97      187:100     188:102     189:445     190:2855   
 192:5803    193:4259    194:3312    195:2689    196:1094    198:3590   
 199:3353    200:5135    201:1311    202:7705    203:8256    204:3880   
 205:2154    206:2429    207:2712    208:3875    209:3391    210:2546   
 211:1127    212:1618    213:1652    214:73      215:24      216:4526   
 217:1318    218:396     219:443     220:1114    221:484     222:301    


End of report




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