Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 12 13:11:14 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 13 Jun, 2009

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

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

BGP routing table entries examined:                              287824
    Prefixes after maximum aggregation:                          137147
    Deaggregation factor:                                          2.10
    Unique aggregates announced to Internet:                     142799
Total ASes present in the Internet Routing Table:                 31449
    Prefixes per ASN:                                              9.15
Origin-only ASes present in the Internet Routing Table:           27360
Origin ASes announcing only one prefix:                           13306
Transit ASes present in the Internet Routing Table:                4089
Transit-only ASes present in the Internet Routing Table:             96
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      29
    Max AS path prepend of ASN (12026)                               22
Prefixes from unregistered ASNs in the Routing Table:               500
    Unregistered ASNs in the Routing Table:                         147
Number of 32-bit ASNs allocated by the RIRs:                        181
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:            829
Number of addresses announced to Internet:                   2050857808
    Equivalent to 122 /8s, 61 /16s and 155 /24s
    Percentage of available address space announced:               55.3
    Percentage of allocated address space announced:               64.0
    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:      142267

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

Prefixes being announced by APNIC Region ASes:                    68490
    Total APNIC prefixes after maximum aggregation:               24490
    APNIC Deaggregation factor:                                    2.80
Prefixes being announced from the APNIC address blocks:           67896
    Unique aggregates announced from the APNIC address blocks:    30776
APNIC Region origin ASes present in the Internet Routing Table:    3665
    APNIC Prefixes per ASN:                                       18.53
APNIC Region origin ASes announcing only one prefix:                997
APNIC Region transit ASes present in the Internet Routing Table:    556
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         18
Number of APNIC addresses announced to Internet:              453620336
    Equivalent to 27 /8s, 9 /16s and 178 /24s
    Percentage of available APNIC address space announced:         84.5

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:                    123257
    Total ARIN prefixes after maximum aggregation:                65969
    ARIN Deaggregation factor:                                     1.87
Prefixes being announced from the ARIN address blocks:           124046
    Unique aggregates announced from the ARIN address blocks:     51834
ARIN Region origin ASes present in the Internet Routing Table:    13033
    ARIN Prefixes per ASN:                                         9.52
ARIN Region origin ASes announcing only one prefix:                4995
ARIN Region transit ASes present in the Internet Routing Table:    1276
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          24
Number of ARIN addresses announced to Internet:              1009227328
    Equivalent to 60 /8s, 39 /16s and 150 /24s
    Percentage of available ARIN address space announced:         194.0

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:                     65736
    Total RIPE prefixes after maximum aggregation:                38944
    RIPE Deaggregation factor:                                     1.69
Prefixes being announced from the RIPE address blocks:            64869
    Unique aggregates announced from the RIPE address blocks:     43770
RIPE Region origin ASes present in the Internet Routing Table:    13116
    RIPE Prefixes per ASN:                                         4.95
RIPE Region origin ASes announcing only one prefix:                6865
RIPE Region transit ASes present in the Internet Routing Table:    1966
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          28
Number of RIPE addresses announced to Internet:               482559648
    Equivalent to 28 /8s, 195 /16s and 70 /24s
    Percentage of available RIPE address space announced:         102.7

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:                   23862
    Total LACNIC prefixes after maximum aggregation:               5946
    LACNIC Deaggregation factor:                                   4.01
Prefixes being announced from the LACNIC address blocks:          23726
    Unique aggregates announced from the LACNIC address blocks:   13297
LACNIC Region origin ASes present in the Internet Routing Table:   1119
    LACNIC Prefixes per ASN:                                      21.20
LACNIC Region origin ASes announcing only one prefix:               361
LACNIC Region transit ASes present in the Internet Routing Table:   184
Average LACNIC Region AS path length visible:                       4.0
    Max LACNIC Region AS path length visible:                        29
Number of LACNIC addresses announced to Internet:              71622272
    Equivalent to 4 /8s, 68 /16s and 222 /24s
    Percentage of available LACNIC address space announced:        71.2

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:                   6035
    Total AfriNIC prefixes after maximum aggregation:              1453
    AfriNIC Deaggregation factor:                                  4.15
Prefixes being announced from the AfriNIC address blocks:          6445
    Unique aggregates announced from the AfriNIC address blocks:   2468
AfriNIC Region origin ASes present in the Internet Routing Table:   296
    AfriNIC Prefixes per ASN:                                     21.77
AfriNIC Region origin ASes announcing only one prefix:               88
AfriNIC Region transit ASes present in the Internet Routing Table:   59
Average AfriNIC Region AS path length visible:                      3.8
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:             19460608
    Equivalent to 1 /8s, 40 /16s and 242 /24s
    Percentage of available AfriNIC address space announced:       58.0

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     1709       6931         402   Korea Telecom (KIX)
17488     1600        130         101   Hathway IP Over Cable Interne
 4755     1251        362         128   TATA Communications formerly 
 9583     1100         87         549   Sify Limited
 4134      892      16925         377   CHINANET-BACKBONE
 7545      793        198         101   TPG Internet Pty Ltd
23577      780         34         664   Korea Telecom (ATM-MPLS)
18101      751        216          30   Reliance Infocom Ltd Internet
24560      714        230         174   Bharti Airtel Ltd.
 9829      683        572          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     4290       3647         324   bellsouth.net, inc. 
 4323     1863       1035         376   Time Warner Telecom
 1785     1687        717         138   PaeTec Communications, Inc.
20115     1627       1447         733   Charter Communications 
 7018     1506       5924        1042   AT&T WorldNet Services
 6478     1375        305         476   AT&T Worldnet Services 
 2386     1264        683         918   AT&T Data Communications Serv
 3356     1204      10980         452   Level 3 Communications, LLC 
11492     1114        208          12   Cable One 
18566     1062        296          10   Covad Communications 

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      454       1902         392   TDC Tele Danmark
12479      450        578           6   Uni2 Autonomous System
  702      431       1861         347   UUNET - Commercial IP service
30890      413         87         193   Evolva Telecom
35805      358         24           4   United Telecom of Georgia
 8866      351        109          21   Bulgarian Telecommunication C
 3301      344       1684         307   TeliaNet Sweden
 3215      343       3041         108   France Telecom Transpac
 3320      338       7066         296   Deutsche Telekom AG
 9121      319       1442          25   TTnet 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     1466       2879         233   UniNet S.A. de C.V. 
10620      906        206         115   TVCABLE BOGOTA 
22047      591        302          14   VTR PUNTO NET S.A. 
 7303      566        298          85   Telecom Argentina Stet-France
28573      538        563          35   NET Servicos de Comunicao S.A
11830      486        292          54   Instituto Costarricense de El
 6471      443         96          32   ENTEL CHILE S.A. 
11172      443        102          70   Servicios Alestra S.A de C.V 
 7738      404        794          28   Telecomunicacoes da Bahia S.A
 3816      363        188          81   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      981        188           7   TEDATA
24863      884         82          40   LINKdotNET AS number
20858      324         34           5   EgyNet
 3741      277        856         237   The Internet Solution 
 2018      243        215         143   Tertiary Education Network 
 6713      160        151          12   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      115        507          66   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     4290       3647         324   bellsouth.net, inc. 
 4323     1863       1035         376   Time Warner Telecom
 4766     1709       6931         402   Korea Telecom (KIX)
 1785     1687        717         138   PaeTec Communications, Inc.
20115     1627       1447         733   Charter Communications 
17488     1600        130         101   Hathway IP Over Cable Interne
 7018     1506       5924        1042   AT&T WorldNet Services
 8151     1466       2879         233   UniNet S.A. de C.V. 
 6478     1375        305         476   AT&T Worldnet Services 
 2386     1264        683         918   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      1687        1549      PaeTec Communications, Inc.
17488      1600        1499      Hathway IP Over Cable Interne
 4323      1863        1487      Time Warner Telecom
 4766      1709        1307      Korea Telecom (KIX)
 8151      1466        1233      UniNet S.A. de C.V. 
 4755      1251        1123      TATA Communications formerly 
11492      1114        1102      Cable One 
18566      1062        1052      Covad Communications 
22773      1062         996      Cox Communications, Inc.
 8452       981         974      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      /11:58      /12:166     
/13:348     /14:601     /15:1154    /16:10514   /17:4723    /18:8087    
/19:16903   /20:20163   /21:19974   /22:25876   /23:25740   /24:150868  
/25:863     /26:1030    /27:538     /28:148     /29:8       /30:5       
/31:0       /32:8       

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

  ASN   No of nets  Total ann.   Description
 6389     2796          4290      bellsouth.net, inc. 
 4766     1402          1709      Korea Telecom (KIX)
17488     1313          1600      Hathway IP Over Cable Interne
 1785     1163          1687      PaeTec Communications, Inc.
11492     1044          1114      Cable One 
18566     1043          1062      Covad Communications 
 2386      977          1264      AT&T Data Communications Serv
 4323      953          1863      Time Warner Telecom
 9583      951          1100      Sify Limited
 8452      914           981      TEDATA

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

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

   4:13        8:206      12:2245     13:10       15:19       16:2      
  17:4        20:36       24:1081     32:52       34:2        38:571    
  40:97       41:1701     43:1        44:2        47:22       52:4      
  55:2        56:3        57:24       58:570      59:640      60:459    
  61:1073     62:1107     63:2013     64:3718     65:2384     66:3622   
  67:1623     68:824      69:2643     70:557      71:174      72:1676   
  73:2        74:1572     75:169      76:311      77:849      78:549    
  79:353      80:971      81:833      82:560      83:434      84:634    
  85:1030     86:397      87:650      88:354      89:1445     90:57     
  91:2312     92:344      93:1055     94:1228     95:1031     96:140    
  97:217      98:245      99:22      109:1       110:143     111:9      
 112:136     113:125     114:256     115:326     116:1163    117:530    
 118:288     119:692     120:145     121:754     122:1031    123:694    
 124:994     125:1336    128:224     129:236     130:127     131:408    
 132:74      133:9       134:186     135:38      136:224     137:153    
 138:161     139:78      140:433     141:119     142:385     143:345    
 144:362     145:48      146:380     147:164     148:519     149:233    
 150:177     151:190     152:147     153:141     154:2       155:276    
 156:170     157:302     158:115     159:312     160:284     161:151    
 162:271     163:169     164:482     165:502     166:275     167:359    
 168:674     169:164     170:471     171:39      172:10      173:287    
 174:226     178:1       180:1       183:1       186:22      187:96     
 188:22      189:432     190:2745    192:5780    193:4256    194:3307   
 195:2696    196:1101    198:3598    199:3360    200:5086    201:1278   
 202:7900    203:8170    204:3879    205:2153    206:2441    207:2731   
 208:3883    209:3400    210:2681    211:1122    212:1604    213:1657   
 214:80      215:31      216:4534    217:1306    218:387     219:443    
 220:1223    221:488     222:304    

End of report




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