Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Dec 14 18:54:29 UTC 2012


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 15 Dec, 2012

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

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

BGP routing table entries examined:                              437576
    Prefixes after maximum aggregation:                          180670
    Deaggregation factor:                                          2.42
    Unique aggregates announced to Internet:                     214733
Total ASes present in the Internet Routing Table:                 42833
    Prefixes per ASN:                                             10.22
Origin-only ASes present in the Internet Routing Table:           33929
Origin ASes announcing only one prefix:                           15857
Transit ASes present in the Internet Routing Table:                5694
Transit-only ASes present in the Internet Routing Table:            135
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      31
    Max AS path prepend of ASN ( 28730)                              25
Prefixes from unregistered ASNs in the Routing Table:              1188
    Unregistered ASNs in the Routing Table:                         426
Number of 32-bit ASNs allocated by the RIRs:                       3579
Number of 32-bit ASNs visible in the Routing Table:                3210
Prefixes from 32-bit ASNs in the Routing Table:                    8662
Special use prefixes present in the Routing Table:                   15
Prefixes being announced from unallocated address space:            150
Number of addresses announced to Internet:                   2619294732
    Equivalent to 156 /8s, 31 /16s and 68 /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:               94.0
Total number of prefixes smaller than registry allocations:      154967

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

Prefixes being announced by APNIC Region ASes:                   104923
    Total APNIC prefixes after maximum aggregation:               32629
    APNIC Deaggregation factor:                                    3.22
Prefixes being announced from the APNIC address blocks:          105840
    Unique aggregates announced from the APNIC address blocks:    43291
APNIC Region origin ASes present in the Internet Routing Table:    4800
    APNIC Prefixes per ASN:                                       22.05
APNIC Region origin ASes announcing only one prefix:               1245
APNIC Region transit ASes present in the Internet Routing Table:    796
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         23
Number of APNIC region 32-bit ASNs visible in the Routing Table:    386
Number of APNIC addresses announced to Internet:              716073472
    Equivalent to 42 /8s, 174 /16s and 106 /24s
    Percentage of available APNIC address space announced:         83.7

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:                    156038
    Total ARIN prefixes after maximum aggregation:                78497
    ARIN Deaggregation factor:                                     1.99
Prefixes being announced from the ARIN address blocks:           156749
    Unique aggregates announced from the ARIN address blocks:     70462
ARIN Region origin ASes present in the Internet Routing Table:    15339
    ARIN Prefixes per ASN:                                        10.22
ARIN Region origin ASes announcing only one prefix:                5794
ARIN Region transit ASes present in the Internet Routing Table:    1592
Average ARIN Region AS path length visible:                         4.1
    Max ARIN Region AS path length visible:                          25
Number of ARIN region 32-bit ASNs visible in the Routing Table:      18
Number of ARIN addresses announced to Internet:              1089133184
    Equivalent to 64 /8s, 234 /16s and 218 /24s
    Percentage of available ARIN address space announced:          57.6

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:                    112707
    Total RIPE prefixes after maximum aggregation:                58169
    RIPE Deaggregation factor:                                     1.94
Prefixes being announced from the RIPE address blocks:           115585
    Unique aggregates announced from the RIPE address blocks:     74144
RIPE Region origin ASes present in the Internet Routing Table:    16988
    RIPE Prefixes per ASN:                                         6.80
RIPE Region origin ASes announcing only one prefix:                8127
RIPE Region transit ASes present in the Internet Routing Table:    2763
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          31
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2078
Number of RIPE addresses announced to Internet:               650196324
    Equivalent to 38 /8s, 193 /16s and 53 /24s
    Percentage of available RIPE address space announced:          94.5

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:                   45280
    Total LACNIC prefixes after maximum aggregation:               8984
    LACNIC Deaggregation factor:                                   5.04
Prefixes being announced from the LACNIC address blocks:          48812
    Unique aggregates announced from the LACNIC address blocks:   23091
LACNIC Region origin ASes present in the Internet Routing Table:   1746
    LACNIC Prefixes per ASN:                                      27.96
LACNIC Region origin ASes announcing only one prefix:               505
LACNIC Region transit ASes present in the Internet Routing Table:   327
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        24
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   722
Number of LACNIC addresses announced to Internet:             120667944
    Equivalent to 7 /8s, 49 /16s and 63 /24s
    Percentage of available LACNIC address space announced:        71.9

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       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:                   9844
    Total AfriNIC prefixes after maximum aggregation:              2338
    AfriNIC Deaggregation factor:                                  4.21
Prefixes being announced from the AfriNIC address blocks:         10440
    Unique aggregates announced from the AfriNIC address blocks:   3614
AfriNIC Region origin ASes present in the Internet Routing Table:   584
    AfriNIC Prefixes per ASN:                                     17.88
AfriNIC Region origin ASes announcing only one prefix:              186
AfriNIC Region transit ASes present in the Internet Routing Table:  127
Average AfriNIC Region AS path length visible:                      4.6
    Max AfriNIC Region AS path length visible:                       16
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    6
Number of AfriNIC addresses announced to Internet:             42905600
    Equivalent to 2 /8s, 142 /16s and 176 /24s
    Percentage of available AfriNIC address space announced:       42.6

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     2933      11556         905   Korea Telecom (KIX)
17974     2431        826          46   PT TELEKOMUNIKASI INDONESIA
 7545     1815        301          90   TPG Internet Pty Ltd
 4755     1654        381         171   TATA Communications formerly 
 9829     1415       1156          42   BSNL National Internet Backbo
 9583     1183         88         501   Sify Limited
 7552     1138       1062          11   Vietel Corporation
 4808     1128       2056         318   CNCGROUP IP network: China169
24560     1035        385         165   Bharti Airtel Ltd., Telemedia
 9498     1030        307          69   BHARTI Airtel Ltd.

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
 7029     3193        994         216   Windstream Communications Inc
 6389     3129       3718         139   bellsouth.net, inc. 
18566     2082        382         180   Covad Communications 
22773     1944       2932         131   Cox Communications, Inc.
 1785     1938        678         124   PaeTec Communications, Inc.
20115     1687       1607         623   Charter Communications 
 4323     1591       1153         395   Time Warner Telecom
30036     1381        291         721   Mediacom Communications Corp 
 7018     1290      10533         854   AT&T WorldNet Services
 7011     1206        321         685   Citizens Utilities 

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     1765        544          16   Corbina telecom
 2118     1424         97          15   EUnet/RELCOM Autonomous Syste
34984      877        211         228   BILISIM TELEKOM
12479      868        777          64   Uni2 Autonomous System
13188      756         95         129   Educational Network
31148      741         38          13   FreeNet ISP
 6830      715       2313         436   UPC Distribution Services
20940      712        229         549   Akamai Technologies European 
58113      633         70         378   LIR DATACENTER TELECOM SRL
 8551      611        367          39   Bezeq International

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
10620     2264        386         207   TVCABLE BOGOTA 
28573     2213       1298          69   NET Servicos de Comunicao S.A
 7303     1673       1139         201   Telecom Argentina Stet-France
 8151     1599       3016         352   UniNet S.A. de C.V. 
 6503     1537        435          67   AVANTEL, S.A. 
27947      761         85          93   Telconet S.A
 3816      661        309          71   Empresa Nacional de Telecomun
18881      608        716          18   Global Village Telecom 
11172      603         85          68   Servicios Alestra S.A de C.V 
 7738      579       1178          33   Telecomunicacoes da Bahia S.A

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
24863      873        275          36   LINKdotNET AS number
36998      772         48           3   MOBITEL
 8452      684        958          13   TEDATA
 6713      485        602          20   Itissalat Al-MAGHRIB
24835      291         80           8   RAYA Telecom - Egypt
 3741      267        906         225   The Internet Solution 
12258      194         28          66   Vodacom Internet Company 
15706      191         32           6   Sudatel Internet Exchange Aut
29975      191        667          21   Vodacom
16637      181        697          88   MTN Network Solutions

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
 7029     3193        994         216   Windstream Communications Inc
 6389     3129       3718         139   bellsouth.net, inc. 
 4766     2933      11556         905   Korea Telecom (KIX)
17974     2431        826          46   PT TELEKOMUNIKASI INDONESIA
10620     2264        386         207   TVCABLE BOGOTA 
28573     2213       1298          69   NET Servicos de Comunicao S.A
18566     2082        382         180   Covad Communications 
22773     1944       2932         131   Cox Communications, Inc.
 1785     1938        678         124   PaeTec Communications, Inc.
 7545     1815        301          90   TPG Internet Pty Ltd

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

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

  ASN   No of nets  Net Savings Description
 6389      3129        2990      bellsouth.net, inc. 
17974      2431        2385      PT TELEKOMUNIKASI INDONESIA
28573      2213        2144      NET Servicos de Comunicao S.A
10620      2264        2057      TVCABLE BOGOTA 
 4766      2933        2028      Korea Telecom (KIX)
18566      2082        1902      Covad Communications 
 1785      1938        1814      PaeTec Communications, Inc.
22773      1944        1813      Cox Communications, Inc.
 8402      1765        1749      Corbina telecom
 7545      1815        1725      TPG Internet Pty Ltd

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

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

Bad AS  Designation  Network              Transit AS  Description
61309   UNALLOCATED  5.1.96.0/21          41562       Host4all Sarl
59505   UNALLOCATED  5.2.65.0/24          50673       Serverius AS
59505   UNALLOCATED  5.2.66.0/24          50673       Serverius AS
59530   UNALLOCATED  5.8.182.0/24         31261       GARS Telecom
61408   UNALLOCATED  5.56.0.0/21            174       Cogent Communication
61395   UNALLOCATED  5.83.56.0/22          3292       TDC Tele Danmark
61395   UNALLOCATED  5.83.60.0/22          3292       TDC Tele Danmark
59414   UNALLOCATED  5.102.144.0/21       15576       Nextra backbone in D
59395   UNALLOCATED  5.133.16.0/21         3549       Global Crossing 
59407   UNALLOCATED  5.134.16.0/21        51167       Giga-Hosting GmbH

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
128.0.24.0/21        41794     Altline LLC
128.0.64.0/22        49466     Declic Telecom SAS
128.0.68.0/22        49466     Declic Telecom SAS
128.0.72.0/21        23456     32-bit ASN transition
128.0.80.0/20        52041     Timer LTD
128.0.104.0/23       51848     FOP Gabidullina Ludmila Nikol
128.0.106.0/24       23456     32-bit ASN transition
128.0.128.0/20       29285     AMT closed joint-stock compan
128.0.144.0/22       59675     >>UNKNOWN<<

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

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

Network            Origin AS  Description
27.112.114.0/24      23884     Proimage Engineering and Comm
41.222.80.0/21       37110     Moztel LDA
41.223.108.0/22      36966     >>UNKNOWN<<
62.12.96.0/19        38478     SunnyVision Limited
62.61.220.0/24       24974     Tachyon Europe BV - Wireless 
62.61.221.0/24       24974     Tachyon Europe BV - Wireless 
64.66.32.0/20        18864     >>UNKNOWN<<
64.187.208.0/24        174     Cogent Communications
64.187.209.0/24      23005     Power Pulse 
65.111.1.0/24        32258     SDN Global 

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        /8:18       /9:13      /10:29      /11:87      /12:244     
/13:477     /14:857     /15:1544    /16:12483   /17:6562    /18:10967   
/19:21593   /20:30927   /21:32879   /22:44170   /23:40758   /24:229702  
/25:1349    /26:1744    /27:868     /28:182     /29:80      /30:17      
/31:0       /32:26      

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

  ASN   No of nets  Total ann.   Description
 7029     2622          3193      Windstream Communications Inc
18566     2032          2082      Covad Communications 
 6389     1776          3129      bellsouth.net, inc. 
 8402     1493          1765      Corbina telecom
30036     1288          1381      Mediacom Communications Corp 
22773     1276          1944      Cox Communications, Inc.
11492     1147          1183      Cable One 
 6503     1055          1537      AVANTEL, S.A. 
 1785     1022          1938      PaeTec Communications, Inc.
 7011      954          1206      Citizens Utilities 

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

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

   1:650       2:715       3:3         4:13        5:687       6:3      
   8:487      12:1940     13:3        14:701      15:11       16:3      
  17:6        20:27       23:221      24:1795     27:1435     31:1321   
  32:54       33:2        34:2        36:7        37:1091     38:844    
  39:2        40:141      41:2768     42:179      44:3        46:1714   
  47:3        49:513      50:627      52:12       54:28       55:8      
  57:28       58:1069     59:553      60:236      61:1307     62:1039   
  63:2021     64:4370     65:2207     66:4498     67:2081     68:1187   
  69:3338     70:933      71:557      72:1894     74:2632     75:471    
  76:290      77:1032     78:1005     79:518      80:1208     81:977    
  82:633      83:535      84:531      85:1155     86:459      87:960    
  88:352      89:1741     90:304      91:5362     92:602      93:1664   
  94:2002     95:1639     96:487      97:322      98:969      99:40     
 100:31      101:288     103:1922    105:517     106:117     107:202    
 108:508     109:1699    110:821     111:972     112:461     113:746    
 114:642     115:901     116:888     117:777     118:965     119:1255   
 120:376     121:679     122:1723    123:1173    124:1322    125:1291   
 128:551     129:200     130:300     131:641     132:319     133:142    
 134:255     135:62      136:215     137:234     138:343     139:167    
 140:181     141:301     142:510     143:355     144:493     145:89     
 146:521     147:294     148:738     149:331     150:153     151:237    
 152:399     153:187     154:22      155:441     156:229     157:380    
 158:257     159:677     160:335     161:419     162:377     163:193    
 164:584     165:450     166:475     167:567     168:993     169:131    
 170:1006    171:164     172:6       173:1704    174:626     175:443    
 176:870     177:1484    178:1743    180:1351    181:185     182:1123   
 183:301     184:632     185:125     186:2107    187:1465    188:1893   
 189:1606    190:6154    192:6094    193:5819    194:4653    195:3656   
 196:1244    197:284     198:3998    199:5157    200:6014    201:2030   
 202:8839    203:8731    204:4477    205:2572    206:2780    207:2825   
 208:4072    209:3661    210:2897    211:1528    212:2101    213:1871   
 214:888     215:74      216:5176    217:1606    218:596     219:320    
 220:1257    221:542     222:336     223:365    

End of report



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