Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri May 24 19:32:18 UTC 2013


This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.

The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG,
TRNOG, CaribNOG and the RIPE Routing Working Group.

Daily listings are sent to bgp-stats at lists.apnic.net

For historical data, please see http://thyme.rand.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.

Routing Table Report   04:00 +10GMT Sat 25 May, 2013

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

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

BGP routing table entries examined:                              455658
    Prefixes after maximum aggregation:                          185562
    Deaggregation factor:                                          2.46
    Unique aggregates announced to Internet:                     224685
Total ASes present in the Internet Routing Table:                 44157
    Prefixes per ASN:                                             10.32
Origin-only ASes present in the Internet Routing Table:           34642
Origin ASes announcing only one prefix:                           16112
Transit ASes present in the Internet Routing Table:                5852
Transit-only ASes present in the Internet Routing Table:            152
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      54
    Max AS path prepend of ASN ( 56484)                              51
Prefixes from unregistered ASNs in the Routing Table:               315
    Unregistered ASNs in the Routing Table:                         128
Number of 32-bit ASNs allocated by the RIRs:                       4775
Number of 32-bit ASNs visible in the Routing Table:                3663
Prefixes from 32-bit ASNs in the Routing Table:                   10451
Special use prefixes present in the Routing Table:                   26
Prefixes being announced from unallocated address space:            244
Number of addresses announced to Internet:                   2619297836
    Equivalent to 156 /8s, 31 /16s and 80 /24s
    Percentage of available address space announced:               70.7
    Percentage of allocated address space announced:               70.7
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               94.5
Total number of prefixes smaller than registry allocations:      160151

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

Prefixes being announced by APNIC Region ASes:                   110112
    Total APNIC prefixes after maximum aggregation:               33502
    APNIC Deaggregation factor:                                    3.29
Prefixes being announced from the APNIC address blocks:          111514
    Unique aggregates announced from the APNIC address blocks:    44846
APNIC Region origin ASes present in the Internet Routing Table:    4843
    APNIC Prefixes per ASN:                                       23.03
APNIC Region origin ASes announcing only one prefix:               1218
APNIC Region transit ASes present in the Internet Routing Table:    829
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         30
Number of APNIC region 32-bit ASNs visible in the Routing Table:    537
Number of APNIC addresses announced to Internet:              722621440
    Equivalent to 43 /8s, 18 /16s and 84 /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, 55296-56319,
                       58368-59391, 131072-133119
APNIC Address Blocks     1/8,  14/8,  27/8,  36/8,  39/8,  42/8,  43/8,
                        49/8,  58/8,  59/8,  60/8,  61/8, 101/8, 103/8,
                       106/8, 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, 133/8, 150/8, 153/8,
                       163/8, 171/8, 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, 223/8,

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                    159423
    Total ARIN prefixes after maximum aggregation:                80337
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           160003
    Unique aggregates announced from the ARIN address blocks:     73260
ARIN Region origin ASes present in the Internet Routing Table:    15710
    ARIN Prefixes per ASN:                                        10.18
ARIN Region origin ASes announcing only one prefix:                5979
ARIN Region transit ASes present in the Internet Routing Table:    1631
Average ARIN Region AS path length visible:                         4.1
    Max ARIN Region AS path length visible:                          27
Number of ARIN region 32-bit ASNs visible in the Routing Table:      19
Number of ARIN addresses announced to Internet:              1063351616
    Equivalent to 63 /8s, 97 /16s and 117 /24s
    Percentage of available ARIN address space announced:          56.3

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,  23/8,  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,  50/8,  52/8,
                        53/8,  54/8,  55/8,  56/8,  57/8,  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, 100/8, 104/8, 107/8, 108/8, 128/8,
                       129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
                       137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
                       146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
                       157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
                       165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
                       173/8, 174/8, 184/8, 192/8, 198/8, 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:                    117067
    Total RIPE prefixes after maximum aggregation:                59894
    RIPE Deaggregation factor:                                     1.95
Prefixes being announced from the RIPE address blocks:           120631
    Unique aggregates announced from the RIPE address blocks:     78083
RIPE Region origin ASes present in the Internet Routing Table:    17198
    RIPE Prefixes per ASN:                                         7.01
RIPE Region origin ASes announcing only one prefix:                8158
RIPE Region transit ASes present in the Internet Routing Table:    2816
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          54
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2342
Number of RIPE addresses announced to Internet:               656531684
    Equivalent to 39 /8s, 33 /16s and 224 /24s
    Percentage of available RIPE address space announced:          95.4

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, 56320-58367
                       59392-61439, 196608-199679
RIPE Address Blocks      2/8,   5/8,  25/8,  31/8,  37/8,  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,
                       141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
                       193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

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

Prefixes being announced by LACNIC Region ASes:                   47649
    Total LACNIC prefixes after maximum aggregation:               9284
    LACNIC Deaggregation factor:                                   5.13
Prefixes being announced from the LACNIC address blocks:          51815
    Unique aggregates announced from the LACNIC address blocks:   24372
LACNIC Region origin ASes present in the Internet Routing Table:   1933
    LACNIC Prefixes per ASN:                                      26.81
LACNIC Region origin ASes announcing only one prefix:               571
LACNIC Region transit ASes present in the Internet Routing Table:   354
Average LACNIC Region AS path length visible:                       4.6
    Max LACNIC Region AS path length visible:                        20
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   759
Number of LACNIC addresses announced to Internet:             129734152
    Equivalent to 7 /8s, 187 /16s and 150 /24s
    Percentage of available LACNIC address space announced:        77.3

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-62463, 262144-263167 plus ERX transfers
LACNIC Address Blocks  177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
                       191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes:                  10870
    Total AfriNIC prefixes after maximum aggregation:              2505
    AfriNIC Deaggregation factor:                                  4.34
Prefixes being announced from the AfriNIC address blocks:         11451
    Unique aggregates announced from the AfriNIC address blocks:   3899
AfriNIC Region origin ASes present in the Internet Routing Table:   631
    AfriNIC Prefixes per ASN:                                     18.15
AfriNIC Region origin ASes announcing only one prefix:              186
AfriNIC Region transit ASes present in the Internet Routing Table:  135
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    6
Number of AfriNIC addresses announced to Internet:             46505984
    Equivalent to 2 /8s, 197 /16s and 160 /24s
    Percentage of available AfriNIC address space announced:       46.2

AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4766     2962      11559         926   Korea Telecom (KIX)
17974     2512        838          90   PT TELEKOMUNIKASI INDONESIA
 7545     1984        320         108   TPG Internet Pty Ltd
 4755     1734        391         192   TATA Communications formerly 
 9829     1512       1205          40   BSNL National Internet Backbo
 9583     1219         91         502   Sify Limited
 7552     1167       1064          12   Vietel Corporation
 4808     1133       2112         329   CNCGROUP IP network: China169
 9498     1113        309          72   BHARTI Airtel Ltd.
24560     1069        393         166   Bharti Airtel Ltd., Telemedia

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

ARIN Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6389     3018       3693          79   bellsouth.net, inc. 
18566     2066        382         184   Covad Communications 
 1785     1992        677         124   PaeTec Communications, Inc.
22773     1979       2929         125   Cox Communications, Inc.
 7029     1973       1265         211   Windstream Communications Inc
20115     1671       1610         612   Charter Communications 
 4323     1608       1138         399   Time Warner Telecom
30036     1327        296         645   Mediacom Communications Corp 
 7018     1302      11074         834   AT&T WorldNet Services
11492     1234        221         342   Cable One 

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

RIPE Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8402     1787        544          16   Corbina telecom
 2118     1260         97          13   EUnet/RELCOM Autonomous Syste
34984     1205        240         228   BILISIM TELEKOM
20940      856        298         674   Akamai Technologies European 
13188      827         98          73   Educational Network
31148      795         40          24   FreeNet ISP
 6830      771       2377         444   UPC Distribution Services
 8551      771        370          43   Bezeq International
34744      688        173          56   SC GVM SISTEM 2003 SRL
58113      666         74         386   LIR DATACENTER TELECOM SRL

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

LACNIC Region per AS prefix count summary
-----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
28573     2766       1535         115   NET Servicos de Comunicao S.A
10620     2625        412         228   TVCABLE BOGOTA 
 7303     1726       1154         224   Telecom Argentina Stet-France
 8151     1257       2707         396   UniNet S.A. de C.V. 
18881      951        780          19   Global Village Telecom 
 6503      933        435          68   AVANTEL, S.A. 
27947      835         89         104   Telconet S.A
 3816      706        306          85   Empresa Nacional de Telecomun
 7738      698       1370          35   Telecomunicacoes da Bahia S.A
11172      608         87          64   Servicios Alestra S.A de C.V 

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

AfriNIC Region per AS prefix count summary
------------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
36998     1237         80           4   MOBITEL
24863      886        274          33   LINKdotNET AS number
 6713      542        617          25   Itissalat Al-MAGHRIB
 8452      444        956           9   TEDATA
24835      344         80           8   RAYA Telecom - Egypt
 3741      261        906         220   The Internet Solution 
15706      222         32           6   Sudatel Internet Exchange Aut
12258      193         28          67   Vodacom Internet Company 
29975      191        667          21   Vodacom
36992      189        527          22   Etisalat MISR

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

Global Per AS prefix count summary
----------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6389     3018       3693          79   bellsouth.net, inc. 
 4766     2962      11559         926   Korea Telecom (KIX)
28573     2766       1535         115   NET Servicos de Comunicao S.A
10620     2625        412         228   TVCABLE BOGOTA 
17974     2512        838          90   PT TELEKOMUNIKASI INDONESIA
18566     2066        382         184   Covad Communications 
 1785     1992        677         124   PaeTec Communications, Inc.
 7545     1984        320         108   TPG Internet Pty Ltd
22773     1979       2929         125   Cox Communications, Inc.
 7029     1973       1265         211   Windstream Communications Inc

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

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

  ASN   No of nets  Net Savings Description
28573      2766        2651      NET Servicos de Comunicao S.A
17974      2512        2422      PT TELEKOMUNIKASI INDONESIA
10620      2625        2397      TVCABLE BOGOTA 
 4766      2962        2036      Korea Telecom (KIX)
18566      2066        1882      Covad Communications 
 7545      1984        1876      TPG Internet Pty Ltd
 1785      1992        1868      PaeTec Communications, Inc.
22773      1979        1854      Cox Communications, Inc.
 8402      1787        1771      Corbina telecom
 7029      1973        1762      Windstream Communications Inc

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

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS  Designation  Network              Transit AS  Description
15132   UNALLOCATED  12.9.150.0/24         7018       AT&T WorldNet Servic
30031   UNALLOCATED  12.27.122.0/24        7018       AT&T WorldNet Servic
13317   UNALLOCATED  12.44.10.0/24         7018       AT&T WorldNet Servic
23502   UNALLOCATED  12.44.44.0/24         7018       AT&T WorldNet Servic
17300   UNALLOCATED  12.45.103.0/24         209       Qwest 
17300   UNALLOCATED  12.45.110.0/24         701       UUNET Technologies, 
16476   UNALLOCATED  12.46.27.0/24         7018       AT&T WorldNet Servic
14764   UNALLOCATED  12.108.237.0/24       7018       AT&T WorldNet Servic
33649   UNALLOCATED  12.111.112.0/24      19029       New Edge Networks 
26064   UNALLOCATED  12.149.37.0/24        7018       AT&T WorldNet Servic

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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
128.0.0.0/24          2876     Jump Management SRL
128.0.16.0/21        43568     RIPE Network Coordination Cen
128.0.24.0/21        41794     Altline LLC
128.0.46.0/23        39743     Mobimax Telecom SRL
128.0.52.0/24        60906     NETOPIA SRL
128.0.53.0/24        60993     Totalsoft SA
128.0.54.0/24        60972     Carpatair SA
128.0.57.0/24        60993     Totalsoft SA
128.0.58.0/23         9050     RTD-ROMTELECOM Autonomous Sys
128.0.60.0/24         9050     RTD-ROMTELECOM Autonomous Sys

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

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
62.61.220.0/24       24974     Tachyon Europe BV - Wireless 
62.61.221.0/24       24974     Tachyon Europe BV - Wireless 
64.185.224.0/24      27431     JTL Networks Inc.
64.185.225.0/24      27431     JTL Networks Inc.
64.185.226.0/24      27431     JTL Networks Inc.
64.185.227.0/24      27431     JTL Networks Inc.
64.185.228.0/24      27431     JTL Networks Inc.
64.185.229.0/24      27431     JTL Networks Inc.
64.185.230.0/24      27431     JTL Networks Inc.
64.185.231.0/24      27431     JTL Networks Inc.

Complete listing at http://thyme.rand.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        /8:16       /9:13      /10:30      /11:88      /12:249     
/13:483     /14:895     /15:1581    /16:12669   /17:6643    /18:11170   
/19:22240   /20:32135   /21:34322   /22:47650   /23:42441   /24:239067  
/25:1304    /26:1665    /27:850     /28:47      /29:63      /30:18      
/31:0       /32:19      

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

  ASN   No of nets  Total ann.   Description
18566     2017          2066      Covad Communications 
 6389     1733          3018      bellsouth.net, inc. 
 7029     1526          1973      Windstream Communications Inc
 8402     1479          1787      Corbina telecom
22773     1287          1979      Cox Communications, Inc.
36998     1231          1237      MOBITEL
30036     1197          1327      Mediacom Communications Corp 
11492     1194          1234      Cable One 
 1785     1063          1992      PaeTec Communications, Inc.
 6983     1008          1134      ITC^Deltacom 

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

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

   1:801       2:797       3:3         4:15        5:888       6:8      
   8:554      12:1906     13:3        14:828      15:11       16:3      
  17:9        20:17       23:274      24:1764     27:1479     31:1291   
  32:57       33:2        34:5        36:28       37:1864     38:876    
  39:2        40:172      41:2782     42:192      44:6        46:1917   
  47:2        49:588      50:704      52:12       54:33       55:7      
  57:26       58:1193     59:570      60:313      61:1404     62:1110   
  63:2037     64:4351     65:2180     66:4371     67:2060     68:1131   
  69:3310     70:879      71:527      72:1921     74:2568     75:406    
  76:305      77:1109     78:1047     79:591      80:1262     81:989    
  82:624      83:570      84:534      85:1165     86:461      87:982    
  88:539      89:1765     90:144      91:5483     92:593      93:1700   
  94:1839     95:1504     96:514      97:344      98:1028     99:41     
 100:30      101:332     103:2634    105:519     106:92      107:209    
 108:518     109:1824    110:888     111:1035    112:510     113:800    
 114:719     115:1022    116:931     117:796     118:1075    119:1300   
 120:435     121:730     122:1805    123:1229    124:1354    125:1375   
 128:643     129:221     130:324     131:648     132:334     133:149    
 134:267     135:66      136:221     137:261     138:344     139:186    
 140:208     141:326     142:548     143:371     144:481     145:93     
 146:510     147:392     148:682     149:374     150:158     151:568    
 152:416     153:199     154:43      155:395     156:264     157:398    
 158:278     159:730     160:338     161:430     162:427     163:218    
 164:594     165:497     166:279     167:590     168:1031    169:129    
 170:1028    171:180     172:21      173:1663    174:582     175:483    
 176:1091    177:1982    178:1855    179:6       180:1461    181:401    
 182:1198    183:386     184:675     185:463     186:2272    187:1284   
 188:2140    189:1321    190:6363    192:6634    193:5860    194:4591   
 195:3425    196:1362    197:910     198:4434    199:5304    200:5910   
 201:2252    202:8914    203:8902    204:4504    205:2567    206:2840   
 207:2903    208:4052    209:3627    210:2984    211:1518    212:2198   
 213:1923    214:902     215:98      216:5238    217:1609    218:618    
 219:330     220:1261    221:558     222:318     223:483    

End of report



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