Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri May 31 18:39:31 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 01 Jun, 2013

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

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

BGP routing table entries examined:                              455214
    Prefixes after maximum aggregation:                          185422
    Deaggregation factor:                                          2.46
    Unique aggregates announced to Internet:                     224816
Total ASes present in the Internet Routing Table:                 44200
    Prefixes per ASN:                                             10.30
Origin-only ASes present in the Internet Routing Table:           34661
Origin ASes announcing only one prefix:                           16138
Transit ASes present in the Internet Routing Table:                5862
Transit-only ASes present in the Internet Routing Table:            150
Average AS path length visible in the Internet Routing Table:       4.6
    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:                         130
Number of 32-bit ASNs allocated by the RIRs:                       4781
Number of 32-bit ASNs visible in the Routing Table:                3677
Prefixes from 32-bit ASNs in the Routing Table:                   10524
Special use prefixes present in the Routing Table:                   26
Prefixes being announced from unallocated address space:            235
Number of addresses announced to Internet:                   2620299948
    Equivalent to 156 /8s, 46 /16s and 154 /24s
    Percentage of available address space announced:               70.8
    Percentage of allocated address space announced:               70.8
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               94.6
Total number of prefixes smaller than registry allocations:      160166

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

Prefixes being announced by APNIC Region ASes:                   109303
    Total APNIC prefixes after maximum aggregation:               33546
    APNIC Deaggregation factor:                                    3.26
Prefixes being announced from the APNIC address blocks:          110744
    Unique aggregates announced from the APNIC address blocks:    45098
APNIC Region origin ASes present in the Internet Routing Table:    4852
    APNIC Prefixes per ASN:                                       22.82
APNIC Region origin ASes announcing only one prefix:               1221
APNIC Region transit ASes present in the Internet Routing Table:    822
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         30
Number of APNIC region 32-bit ASNs visible in the Routing Table:    547
Number of APNIC addresses announced to Internet:              722414304
    Equivalent to 43 /8s, 15 /16s and 42 /24s
    Percentage of available APNIC address space announced:         84.4

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:                    159792
    Total ARIN prefixes after maximum aggregation:                80132
    ARIN Deaggregation factor:                                     1.99
Prefixes being announced from the ARIN address blocks:           160347
    Unique aggregates announced from the ARIN address blocks:     73391
ARIN Region origin ASes present in the Internet Routing Table:    15711
    ARIN Prefixes per ASN:                                        10.21
ARIN Region origin ASes announcing only one prefix:                5978
ARIN Region transit ASes present in the Internet Routing Table:    1639
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:              1064198208
    Equivalent to 63 /8s, 110 /16s and 96 /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:                    116865
    Total RIPE prefixes after maximum aggregation:                59837
    RIPE Deaggregation factor:                                     1.95
Prefixes being announced from the RIPE address blocks:           120385
    Unique aggregates announced from the RIPE address blocks:     77846
RIPE Region origin ASes present in the Internet Routing Table:    17210
    RIPE Prefixes per ASN:                                         7.00
RIPE Region origin ASes announcing only one prefix:                8176
RIPE Region transit ASes present in the Internet Routing Table:    2821
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          54
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2345
Number of RIPE addresses announced to Internet:               656498020
    Equivalent to 39 /8s, 33 /16s and 93 /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:                   47792
    Total LACNIC prefixes after maximum aggregation:               9344
    LACNIC Deaggregation factor:                                   5.11
Prefixes being announced from the LACNIC address blocks:          52052
    Unique aggregates announced from the LACNIC address blocks:   24378
LACNIC Region origin ASes present in the Internet Routing Table:   1948
    LACNIC Prefixes per ASN:                                      26.72
LACNIC Region origin ASes announcing only one prefix:               580
LACNIC Region transit ASes present in the Internet Routing Table:   358
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        29
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   760
Number of LACNIC addresses announced to Internet:             130286632
    Equivalent to 7 /8s, 196 /16s and 4 /24s
    Percentage of available LACNIC address space announced:        77.7

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:                  10851
    Total AfriNIC prefixes after maximum aggregation:              2523
    AfriNIC Deaggregation factor:                                  4.30
Prefixes being announced from the AfriNIC address blocks:         11451
    Unique aggregates announced from the AfriNIC address blocks:   3885
AfriNIC Region origin ASes present in the Internet Routing Table:   625
    AfriNIC Prefixes per ASN:                                     18.32
AfriNIC Region origin ASes announcing only one prefix:              183
AfriNIC Region transit ASes present in the Internet Routing Table:  131
Average AfriNIC Region AS path length visible:                      4.8
    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:             46610176
    Equivalent to 2 /8s, 199 /16s and 55 /24s
    Percentage of available AfriNIC address space announced:       46.3

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     2959      11559         926   Korea Telecom (KIX)
17974     2519        839          86   PT TELEKOMUNIKASI INDONESIA
 7545     1983        320         108   TPG Internet Pty Ltd
 4755     1734        391         192   TATA Communications formerly 
 9829     1514       1205          40   BSNL National Internet Backbo
 9583     1220         91         503   Sify Limited
 7552     1152       1080          13   Vietel Corporation
 4808     1141       2121         331   CNCGROUP IP network: China169
 9498     1120        309          70   BHARTI Airtel Ltd.
24560     1076        394         164   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     3017       3692          77   bellsouth.net, inc. 
 7029     2070       1265         211   Windstream Communications Inc
18566     2065        382         184   Covad Communications 
 1785     1991        677         123   PaeTec Communications, Inc.
22773     1983       2929         125   Cox Communications, Inc.
20115     1671       1611         611   Charter Communications 
 4323     1612       1139         401   Time Warner Telecom
  701     1587      11075         841   UUNET Technologies, Inc. 
30036     1334        298         642   Mediacom Communications Corp 
 7018     1306      11059         838   AT&T WorldNet Services

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     1586        544          16   Corbina telecom
 2118     1260         97          13   EUnet/RELCOM Autonomous Syste
34984     1215        240         222   BILISIM TELEKOM
20940      876        307         684   Akamai Technologies European 
13188      828         98          73   Educational Network
31148      794         39          23   FreeNet ISP
 8551      773        370          43   Bezeq International
 6830      771       2377         444   UPC Distribution Services
34744      684        173          59   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     2791       1533         112   NET Servicos de Comunicao S.A
10620     2633        414         231   TVCABLE BOGOTA 
 7303     1723       1154         219   Telecom Argentina Stet-France
 8151     1272       2710         406   UniNet S.A. de C.V. 
18881      958        780          19   Global Village Telecom 
 6503      926        434          65   AVANTEL, S.A. 
27947      838         89         102   Telconet S.A
 3816      710        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      892        274          33   LINKdotNET AS number
 6713      542        617          25   Itissalat Al-MAGHRIB
 8452      437        956           9   TEDATA
24835      345         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     3017       3692          77   bellsouth.net, inc. 
 4766     2959      11559         926   Korea Telecom (KIX)
28573     2791       1533         112   NET Servicos de Comunicao S.A
10620     2633        414         231   TVCABLE BOGOTA 
17974     2519        839          86   PT TELEKOMUNIKASI INDONESIA
 7029     2070       1265         211   Windstream Communications Inc
18566     2065        382         184   Covad Communications 
 1785     1991        677         123   PaeTec Communications, Inc.
 7545     1983        320         108   TPG Internet Pty Ltd
22773     1983       2929         125   Cox 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      2791        2679      NET Servicos de Comunicao S.A
17974      2519        2433      PT TELEKOMUNIKASI INDONESIA
10620      2633        2402      TVCABLE BOGOTA 
 4766      2959        2033      Korea Telecom (KIX)
18566      2065        1881      Covad Communications 
 7545      1983        1875      TPG Internet Pty Ltd
 1785      1991        1868      PaeTec Communications, Inc.
 7029      2070        1859      Windstream Communications Inc
22773      1983        1858      Cox Communications, Inc.
 8402      1586        1570      Corbina telecom

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
128.0.53.0/24        60993     Totalsoft SA
128.0.54.0/24        60972     Carpatair SA
128.0.55.0/24        48571     SC efectRO SRL
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       /9:11      /10:30      /11:88      /12:249     
/13:483     /14:899     /15:1595    /16:12688   /17:6658    /18:11175   
/19:22184   /20:32051   /21:34277   /22:47494   /23:42375   /24:238957  
/25:1316    /26:1665    /27:855     /28:46      /29:64      /30:18      
/31:0       /32:20      

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

  ASN   No of nets  Total ann.   Description
18566     2016          2065      Covad Communications 
 6389     1732          3017      bellsouth.net, inc. 
 7029     1580          2070      Windstream Communications Inc
22773     1290          1983      Cox Communications, Inc.
 8402     1280          1586      Corbina telecom
36998     1231          1237      MOBITEL
30036     1203          1334      Mediacom Communications Corp 
11492     1180          1219      Cable One 
 1785     1062          1991      PaeTec Communications, Inc.
 6983     1009          1136      ITC^Deltacom 

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

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

   1:812       2:676       3:3         4:15        5:756       6:9      
   8:557      12:1924     13:3        14:826      15:11       16:3      
  17:9        20:17       23:274      24:1771     27:1478     31:1306   
  32:57       33:2        34:5        36:28       37:1869     38:876    
  39:2        40:172      41:2800     42:192      44:6        46:1910   
  47:2        49:650      50:717      52:12       54:33       55:9      
  57:26       58:1173     59:570      60:313      61:1408     62:1111   
  63:2035     64:4355     65:2174     66:4379     67:2063     68:1124   
  69:3312     70:882      71:566      72:1924     74:2559     75:413    
  76:304      77:1115     78:1019     79:616      80:1264     81:1000   
  82:623      83:571      84:534      85:1161     86:455      87:989    
  88:534      89:1738     90:147      91:5495     92:592      93:1666   
  94:1841     95:1487     96:516      97:344      98:1040     99:41     
 100:31      101:325     103:2646    105:519     106:150     107:208    
 108:519     109:1824    110:895     111:1037    112:539     113:799    
 114:693     115:951     116:920     117:796     118:1082    119:1298   
 120:405     121:726     122:1798    123:1212    124:1356    125:1355   
 128:643     129:221     130:326     131:655     132:342     133:148    
 134:265     135:67      136:222     137:263     138:347     139:196    
 140:210     141:327     142:541     143:372     144:496     145:93     
 146:503     147:395     148:683     149:368     150:158     151:567    
 152:416     153:193     154:41      155:398     156:267     157:398    
 158:278     159:729     160:337     161:431     162:438     163:219    
 164:599     165:446     166:289     167:592     168:1029    169:129    
 170:1025    171:181     172:21      173:1660    174:606     175:477    
 176:1110    177:2006    178:1860    179:14      180:1452    181:434    
 182:1211    183:389     184:670     185:490     186:2270    187:1307   
 188:2145    189:1322    190:6376    192:6648    193:5870    194:4594   
 195:3424    196:1359    197:908     198:4467    199:5319    200:5922   
 201:2276    202:8836    203:8877    204:4503    205:2560    206:2811   
 207:2886    208:4043    209:3648    210:2974    211:1509    212:2199   
 213:1919    214:917     215:98      216:5234    217:1599    218:618    
 219:331     220:1260    221:558     222:321     223:451    

End of report



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