[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Oct 16 18:27:17 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 17 Oct, 2009

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

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

BGP routing table entries examined:                              300381
    Prefixes after maximum aggregation:                          140850
    Deaggregation factor:                                          2.13
    Unique aggregates announced to Internet:                     148722
Total ASes present in the Internet Routing Table:                 32446
    Prefixes per ASN:                                              9.26
Origin-only ASes present in the Internet Routing Table:           28188
Origin ASes announcing only one prefix:                           13763
Transit ASes present in the Internet Routing Table:                4258
Transit-only ASes present in the Internet Routing Table:            104
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:               565
    Unregistered ASNs in the Routing Table:                         128
Number of 32-bit ASNs allocated by the RIRs:                        292
Prefixes from 32-bit ASNs in the Routing Table:                     217
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            192
Number of addresses announced to Internet:                   2114870368
    Equivalent to 126 /8s, 14 /16s and 92 /24s
    Percentage of available address space announced:               57.1
    Percentage of allocated address space announced:               64.7
    Percentage of available address space allocated:               88.2
    Percentage of address space in use by end-sites:               79.4
Total number of prefixes smaller than registry allocations:      144438

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

Prefixes being announced by APNIC Region ASes:                    72024
    Total APNIC prefixes after maximum aggregation:               25287
    APNIC Deaggregation factor:                                    2.85
Prefixes being announced from the APNIC address blocks:           68525
    Unique aggregates announced from the APNIC address blocks:    30332
APNIC Region origin ASes present in the Internet Routing Table:    3821
    APNIC Prefixes per ASN:                                       17.93
APNIC Region origin ASes announcing only one prefix:               1041
APNIC Region transit ASes present in the Internet Routing Table:    586
Average APNIC Region AS path length visible:                        3.6
    Max APNIC Region AS path length visible:                         14
Number of APNIC addresses announced to Internet:              462426016
    Equivalent to 27 /8s, 144 /16s and 15 /24s
    Percentage of available APNIC address space announced:         78.8

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:                    126924
    Total ARIN prefixes after maximum aggregation:                66963
    ARIN Deaggregation factor:                                     1.90
Prefixes being announced from the ARIN address blocks:           101444
    Unique aggregates announced from the ARIN address blocks:     38562
ARIN Region origin ASes present in the Internet Routing Table:    13302
    ARIN Prefixes per ASN:                                         7.63
ARIN Region origin ASes announcing only one prefix:                5154
ARIN Region transit ASes present in the Internet Routing Table:    1309
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          24
Number of ARIN addresses announced to Internet:               707408384
    Equivalent to 42 /8s, 42 /16s and 50 /24s
    Percentage of available ARIN address space announced:          62.0

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, 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:                     69231
    Total RIPE prefixes after maximum aggregation:                40421
    RIPE Deaggregation factor:                                     1.71
Prefixes being announced from the RIPE address blocks:            62717
    Unique aggregates announced from the RIPE address blocks:     41918
RIPE Region origin ASes present in the Internet Routing Table:    13610
    RIPE Prefixes per ASN:                                         4.61
RIPE Region origin ASes announcing only one prefix:                7088
RIPE Region transit ASes present in the Internet Routing Table:    2058
Average RIPE Region AS path length visible:                         3.9
    Max RIPE Region AS path length visible:                          21
Number of RIPE addresses announced to Internet:               402187968
    Equivalent to 23 /8s, 248 /16s and 230 /24s
    Percentage of available RIPE address space announced:          74.9

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:                   25837
    Total LACNIC prefixes after maximum aggregation:               6363
    LACNIC Deaggregation factor:                                   4.06
Prefixes being announced from the LACNIC address blocks:          24132
    Unique aggregates announced from the LACNIC address blocks:   13313
LACNIC Region origin ASes present in the Internet Routing Table:   1192
    LACNIC Prefixes per ASN:                                      20.24
LACNIC Region origin ASes announcing only one prefix:               381
LACNIC Region transit ASes present in the Internet Routing Table:   193
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        21
Number of LACNIC addresses announced to Internet:              67348480
    Equivalent to 4 /8s, 3 /16s and 168 /24s
    Percentage of available LACNIC address space announced:        66.9

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:                   5911
    Total AfriNIC prefixes after maximum aggregation:              1540
    AfriNIC Deaggregation factor:                                  3.84
Prefixes being announced from the AfriNIC address blocks:          4303
    Unique aggregates announced from the AfriNIC address blocks:   1571
AfriNIC Region origin ASes present in the Internet Routing Table:   328
    AfriNIC Prefixes per ASN:                                     13.12
AfriNIC Region origin ASes announcing only one prefix:               99
AfriNIC Region transit ASes present in the Internet Routing Table:   67
Average AfriNIC Region AS path length visible:                      3.8
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:             12591360
    Equivalent to 0 /8s, 192 /16s and 33 /24s
    Percentage of available AfriNIC address space announced:       37.5

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     1764       6996         458   Korea Telecom (KIX)
17488     1466        138         143   Hathway IP Over Cable Interne
 4755     1266        292         145   TATA Communications formerly 
 9583     1102         87         531   Sify Limited
 4134     1012      18169         392   CHINANET-BACKBONE
18101      980        204          33   Reliance Infocom Ltd Internet
 7545      892        199         101   TPG Internet Pty Ltd
 9829      849        661          20   BSNL National Internet Backbo
17974      789        248          93   PT TELEKOMUNIKASI INDONESIA
24560      778        286         165   Bharti Airtel Ltd., Telemedia

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     4161       3626         312   bellsouth.net, inc. 
 4323     3704       1037         385   Time Warner Telecom
 1785     1770        714         139   PaeTec Communications, Inc.
 7018     1567       5846        1061   AT&T WorldNet Services
20115     1487       1481         676   Charter Communications 
 6478     1368        276         419   AT&T Worldnet Services 
 2386     1304        637         943   AT&T Data Communications Serv
 3356     1229      10964         439   Level 3 Communications, LLC 
11492     1135        208          12   Cable One 
22773     1114       2604          67   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      512         94         207   Evolva Telecom
35805      458         40           5   United Telecom of Georgia
 3292      450       1908         394   TDC Tele Danmark
12479      429        578           6   Uni2 Autonomous System
  702      420       1822         338   UUNET - Commercial IP service
 9198      393        138          12   Kazakhtelecom Data Network Ad
 8866      358        110          23   Bulgarian Telecommunication C
 3320      356       7068         304   Deutsche Telekom AG
 3301      351       1412         308   TeliaNet Sweden
 3215      349       3144         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     1513       2899         244   UniNet S.A. de C.V. 
10620     1018        227         100   TVCABLE BOGOTA 
28573      767        651          87   NET Servicos de Comunicao S.A
 7303      654        346         100   Telecom Argentina Stet-France
22047      545        302          14   VTR PUNTO NET S.A. 
11830      475        310          61   Instituto Costarricense de El
11172      442         99          70   Servicios Alestra S.A de C.V 
14117      437         29          11   Telefonica del Sur S.A. 
 7738      428        858          29   Telecomunicacoes da Bahia S.A
 6471      421         96          31   ENTEL CHILE 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      989        188           7   TEDATA
24863      932         96          67   LINKdotNET AS number
 3741      273        857         234   The Internet Solution 
 2018      191        183         117   Tertiary Education Network 
 6713      176        167          12   Itissalat Al-MAGHRIB
29571      140         14           6   Ci Telecom Autonomous system 
33776      124          7          11   Starcomms Nigeria Limited
 5536      122          8          13   Internet Egypt Network
 5713      116        508          67   Telkom SA Ltd 
24835      108         46           9   RAYA Telecom - Egypt

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     4161       3626         312   bellsouth.net, inc. 
 4323     3704       1037         385   Time Warner Telecom
 1785     1770        714         139   PaeTec Communications, Inc.
 4766     1764       6996         458   Korea Telecom (KIX)
 7018     1567       5846        1061   AT&T WorldNet Services
 8151     1513       2899         244   UniNet S.A. de C.V. 
20115     1487       1481         676   Charter Communications 
17488     1466        138         143   Hathway IP Over Cable Interne
 6478     1368        276         419   AT&T Worldnet Services 
 2386     1304        637         943   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
 4323      3704        3319      Time Warner Telecom
 1785      1770        1631      PaeTec Communications, Inc.
17488      1466        1323      Hathway IP Over Cable Interne
 4766      1764        1306      Korea Telecom (KIX)
 8151      1513        1269      UniNet S.A. de C.V. 
11492      1135        1123      Cable One 
 4755      1266        1121      TATA Communications formerly 
18566      1062        1052      Covad Communications 
22773      1114        1047      Cox Communications, Inc.
 8452       989         982      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
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
41.223.92.0/22       36936     >>UNKNOWN<<
41.223.189.0/24      26452     Local Communications Networks
43.245.0.0/16         7502     Internetwork Kyoto
46.0.0.0/16          12654     RIPE NCC RIS Project
46.1.0.0/21          12654     RIPE NCC RIS Project
46.1.24.0/24         12654     RIPE NCC RIS Project
62.61.220.0/24       24974     Tachyon Europe BV - Wireless 

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        /8:20       /9:10      /10:24      /11:63      /12:176     
/13:357     /14:630     /15:1207    /16:10697   /17:4881    /18:8438    
/19:17490   /20:21039   /21:21018   /22:27426   /23:26869   /24:157288  
/25:923     /26:1096    /27:553     /28:153     /29:8       /30:7       
/31:0       /32:8       

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

  ASN   No of nets  Total ann.   Description
 6389     2693          4161      bellsouth.net, inc. 
 4323     2354          3704      Time Warner Telecom
 4766     1437          1764      Korea Telecom (KIX)
 1785     1235          1770      PaeTec Communications, Inc.
17488     1227          1466      Hathway IP Over Cable Interne
11492     1058          1135      Cable One 
18566     1043          1062      Covad Communications 
 9583      954          1102      Sify Limited
10620      924          1018      TVCABLE BOGOTA 
 7018      923          1567      AT&T WorldNet Services

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

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

   2:1         4:14        8:223      12:2142     13:7        15:22     
  16:3        17:5        20:36       24:1184     32:52       34:2      
  38:603      40:97       41:1749     43:1        44:2        46:1      
  47:20       52:6        55:2        56:2        57:25       58:604    
  59:640      60:440      61:1078     62:1017     63:2006     64:3632   
  65:2383     66:4091     67:1811     68:984      69:2758     70:568    
  71:154      72:1689     73:2        74:1946     75:182      76:358    
  77:863      78:579      79:388      80:905      81:809      82:488    
  83:434      84:525      85:1001     86:377      87:695      88:389    
  89:1516     90:70       91:2602     92:414      93:1228     94:1260   
  95:1130     96:174      97:271      98:346      99:30      109:58     
 110:232     111:455     112:145     113:152     114:265     115:422    
 116:1076    117:550     118:355     119:776     120:131     121:789    
 122:1291    123:780     124:1039    125:1364    128:220     129:220    
 130:131     131:421     132:76      133:10      134:186     135:42     
 136:224     137:170     138:174     139:82      140:437     141:123    
 142:385     143:340     144:368     145:48      146:391     147:172    
 148:548     149:203     150:151     151:176     152:216     153:156    
 154:2       155:271     156:166     157:310     158:90      159:357    
 160:292     161:171     162:279     163:172     164:279     165:512    
 166:476     167:389     168:752     169:163     170:463     171:42     
 172:2       173:397     174:372     175:1       178:1       180:84     
 182:1       186:145     187:175     188:1185    189:604     190:3102   
 192:5763    193:4274    194:3324    195:2755    196:1158    198:3555   
 199:3357    200:5199    201:1364    202:7868    203:8229    204:3921   
 205:2194    206:2403    207:2977    208:3963    209:3484    210:2565   
 211:1135    212:1603    213:1623    214:195     215:39      216:4406   
 217:1327    218:415     219:457     220:1133    221:449     222:312    


End of report



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