[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Sep 18 18:14:00 UTC 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 19 Sep, 2009

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

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

BGP routing table entries examined:                              296617
    Prefixes after maximum aggregation:                          139697
    Deaggregation factor:                                          2.12
    Unique aggregates announced to Internet:                     147808
Total ASes present in the Internet Routing Table:                 32213
    Prefixes per ASN:                                              9.21
Origin-only ASes present in the Internet Routing Table:           27997
Origin ASes announcing only one prefix:                           13673
Transit ASes present in the Internet Routing Table:                4216
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:                                      39
    Max AS path prepend of ASN (22394)                               36
Prefixes from unregistered ASNs in the Routing Table:               432
    Unregistered ASNs in the Routing Table:                         121
Number of 32-bit ASNs allocated by the RIRs:                        275
Prefixes from 32-bit ASNs in the Routing Table:                     126
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            229
Number of addresses announced to Internet:                   2107111040
    Equivalent to 125 /8s, 151 /16s and 246 /24s
    Percentage of available address space announced:               56.8
    Percentage of allocated address space announced:               65.1
    Percentage of available address space allocated:               87.3
    Percentage of address space in use by end-sites:               78.9
Total number of prefixes smaller than registry allocations:      142159

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

Prefixes being announced by APNIC Region ASes:                    71434
    Total APNIC prefixes after maximum aggregation:               25020
    APNIC Deaggregation factor:                                    2.86
Prefixes being announced from the APNIC address blocks:           67830
    Unique aggregates announced from the APNIC address blocks:    30301
APNIC Region origin ASes present in the Internet Routing Table:    3792
    APNIC Prefixes per ASN:                                       17.89
APNIC Region origin ASes announcing only one prefix:               1036
APNIC Region transit ASes present in the Internet Routing Table:    583
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              460221984
    Equivalent to 27 /8s, 110 /16s and 110 /24s
    Percentage of available APNIC address space announced:         78.4

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    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, 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:                    125111
    Total ARIN prefixes after maximum aggregation:                66615
    ARIN Deaggregation factor:                                     1.88
Prefixes being announced from the ARIN address blocks:            99638
    Unique aggregates announced from the ARIN address blocks:     38372
ARIN Region origin ASes present in the Internet Routing Table:    13244
    ARIN Prefixes per ASN:                                         7.52
ARIN Region origin ASes announcing only one prefix:                5129
ARIN Region transit ASes present in the Internet Routing Table:    1300
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          39
Number of ARIN addresses announced to Internet:               705394816
    Equivalent to 42 /8s, 11 /16s and 120 /24s
    Percentage of available ARIN address space announced:          61.8

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,  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, 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:                     68436
    Total RIPE prefixes after maximum aggregation:                40022
    RIPE Deaggregation factor:                                     1.71
Prefixes being announced from the RIPE address blocks:            62149
    Unique aggregates announced from the RIPE address blocks:     41489
RIPE Region origin ASes present in the Internet Routing Table:    13484
    RIPE Prefixes per ASN:                                         4.61
RIPE Region origin ASes announcing only one prefix:                7037
RIPE Region transit ASes present in the Internet Routing Table:    2031
Average RIPE Region AS path length visible:                         3.9
    Max RIPE Region AS path length visible:                          21
Number of RIPE addresses announced to Internet:               399639232
    Equivalent to 23 /8s, 210 /16s and 2 /24s
    Percentage of available RIPE address space announced:          79.4

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     25/8,  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:                   25376
    Total LACNIC prefixes after maximum aggregation:               6231
    LACNIC Deaggregation factor:                                   4.07
Prefixes being announced from the LACNIC address blocks:          23706
    Unique aggregates announced from the LACNIC address blocks:   13257
LACNIC Region origin ASes present in the Internet Routing Table:   1177
    LACNIC Prefixes per ASN:                                      20.14
LACNIC Region origin ASes announcing only one prefix:               381
LACNIC Region transit ASes present in the Internet Routing Table:   189
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        21
Number of LACNIC addresses announced to Internet:              66558464
    Equivalent to 3 /8s, 247 /16s and 154 /24s
    Percentage of available LACNIC address space announced:        66.1

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:                   5892
    Total AfriNIC prefixes after maximum aggregation:              1545
    AfriNIC Deaggregation factor:                                  3.81
Prefixes being announced from the AfriNIC address blocks:          4268
    Unique aggregates announced from the AfriNIC address blocks:   1495
AfriNIC Region origin ASes present in the Internet Routing Table:   319
    AfriNIC Prefixes per ASN:                                     13.38
AfriNIC Region origin ASes announcing only one prefix:               90
AfriNIC Region transit ASes present in the Internet Routing Table:   68
Average AfriNIC Region AS path length visible:                      3.8
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:             12382208
    Equivalent to 0 /8s, 188 /16s and 240 /24s
    Percentage of available AfriNIC address space announced:       36.9

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     1761       6995         453   Korea Telecom (KIX)
17488     1547        138         105   Hathway IP Over Cable Interne
 4755     1263        292         143   TATA Communications formerly 
 9583     1098         87         533   Sify Limited
 4134     1008      18168         391   CHINANET-BACKBONE
18101      976        203          33   Reliance Infocom Ltd Internet
 7545      857        198         100   TPG Internet Pty Ltd
 9829      812        625          18   BSNL National Internet Backbo
24560      766        284         166   Bharti Airtel Ltd., Telemedia
 4808      764       1518         182   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     4170       3627         313   bellsouth.net, inc. 
 4323     1927       1049         386   Time Warner Telecom
 1785     1742        714         138   PaeTec Communications, Inc.
20115     1641       1478         673   Charter Communications 
 7018     1488       5875        1053   AT&T WorldNet Services
 6478     1427        284         259   AT&T Worldnet Services 
 2386     1313        656         951   AT&T Data Communications Serv
 3356     1227      10980         439   Level 3 Communications, LLC 
11492     1123        208          12   Cable One 
22773     1102       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
30890      491         93         200   Evolva Telecom
 3292      447       1900         394   TDC Tele Danmark
12479      424        578           6   Uni2 Autonomous System
  702      423       1821         341   UUNET - Commercial IP service
35805      392         40           5   United Telecom of Georgia
 9198      376        138          12   Kazakhtelecom Data Network Ad
 8866      358        110          23   Bulgarian Telecommunication C
 3320      354       7067         303   Deutsche Telekom AG
 3301      349       1412         309   TeliaNet Sweden
 3215      347       3121         111   France Telecom Transpac

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     1476       2899         246   UniNet S.A. de C.V. 
10620     1010        226          99   TVCABLE BOGOTA 
28573      710        622          62   NET Servicos de Comunicao S.A
 7303      640        339          90   Telecom Argentina Stet-France
22047      542        302          14   VTR PUNTO NET S.A. 
11830      475        310          61   Instituto Costarricense de El
11172      439         99          70   Servicios Alestra S.A de C.V 
 7738      424        858          29   Telecomunicacoes da Bahia S.A
 6471      423         96          31   ENTEL CHILE S.A. 
14117      418         29          11   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      978        188           7   TEDATA
24863      935         96          61   LINKdotNET AS number
 3741      272        856         234   The Internet Solution 
 2018      197        187         116   Tertiary Education Network 
 6713      175        166          16   Itissalat Al-MAGHRIB
29571      139         14           6   Ci Telecom Autonomous system 
24835      123         46           9   RAYA Telecom - Egypt
33776      123          7          11   Starcomms Nigeria Limited
 5536      122          8          13   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     4170       3627         313   bellsouth.net, inc. 
 4323     1927       1049         386   Time Warner Telecom
 4766     1761       6995         453   Korea Telecom (KIX)
 1785     1742        714         138   PaeTec Communications, Inc.
20115     1641       1478         673   Charter Communications 
17488     1547        138         105   Hathway IP Over Cable Interne
 7018     1488       5875        1053   AT&T WorldNet Services
 8151     1476       2899         246   UniNet S.A. de C.V. 
 6478     1427        284         259   AT&T Worldnet Services 
 2386     1313        656         951   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      1742        1604      PaeTec Communications, Inc.
 4323      1927        1541      Time Warner Telecom
17488      1547        1442      Hathway IP Over Cable Interne
 4766      1761        1308      Korea Telecom (KIX)
 8151      1476        1230      UniNet S.A. de C.V. 
 6478      1427        1168      AT&T Worldnet Services 
 4755      1263        1120      TATA Communications formerly 
11492      1123        1111      Cable One 
18566      1062        1052      Covad Communications 
22773      1102        1036      Cox Communications, Inc.

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<<
41.223.189.0/24      26452     Local Communications Networks
43.245.0.0/16         7502     Internetwork Kyoto
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 
64.72.112.0/20       19166     Allied Riser Communications, 
64.247.160.0/20      10937     Island Internet Services 

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      /10:24      /11:63      /12:175     
/13:355     /14:626     /15:1197    /16:10663   /17:4826    /18:8374    
/19:17422   /20:20842   /21:20788   /22:27097   /23:26608   /24:154744  
/25:932     /26:1056    /27:567     /28:166     /29:40      /30:15      
/31:0       /32:8       

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

  ASN   No of nets  Total ann.   Description
 6389     2701          4170      bellsouth.net, inc. 
 4766     1434          1761      Korea Telecom (KIX)
17488     1292          1547      Hathway IP Over Cable Interne
 1785     1209          1742      PaeTec Communications, Inc.
11492     1051          1123      Cable One 
18566     1043          1062      Covad Communications 
 4323      968          1927      Time Warner Telecom
 9583      950          1098      Sify Limited
10620      916          1010      TVCABLE BOGOTA 
 8452      902           978      TEDATA

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

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

   4:13        8:226      12:2150     13:7        15:21       16:3      
  17:5        20:36       24:1136     32:52       34:2        38:601    
  40:97       41:1717     43:1        44:2        47:13       52:6      
  55:2        56:2        57:25       58:608      59:635      60:461    
  61:1071     62:1030     63:2013     64:3632     65:2402     66:3402   
  67:1790     68:979      69:2749     70:569      71:157      72:1657   
  73:2        74:1745     75:179      76:323      77:872      78:586    
  79:380      80:900      81:798      82:518      83:437      84:529    
  85:1029     86:380      87:680      88:386      89:1473     90:55     
  91:2553     92:404      93:1230     94:1180     95:1098     96:165    
  97:266      98:287      99:30      109:3       110:201     111:438    
 112:131     113:150     114:256     115:350     116:1134    117:562    
 118:329     119:785     120:122     121:772     122:1278    123:768    
 124:1054    125:1367    128:222     129:217     130:129     131:423    
 132:75      133:10      134:174     135:42      136:241     137:164    
 138:173     139:84      140:433     141:121     142:382     143:343    
 144:377     145:49      146:391     147:163     148:531     149:213    
 150:208     151:187     152:215     153:155     154:2       155:279    
 156:165     157:304     158:113     159:352     160:291     161:164    
 162:271     163:165     164:276     165:522     166:475     167:371    
 168:685     169:166     170:473     171:40      172:2       173:413    
 174:331     175:1       178:1       180:25      182:1       186:142    
 187:147     188:1018    189:571     190:3016    192:5768    193:4269   
 194:3286    195:2757    196:1141    198:3554    199:3349    200:5188   
 201:1309    202:7844    203:8269    204:3896    205:2194    206:2391   
 207:2725    208:3955    209:3394    210:2563    211:1127    212:1603   
 213:1636    214:178     215:33      216:4282    217:1313    218:410    
 219:450     220:1132    221:442     222:325    

End of report



More information about the afnog mailing list