[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Feb 15 18:33:21 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 16 Feb, 2013

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

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

BGP routing table entries examined:                              443072
    Prefixes after maximum aggregation:                          182226
    Deaggregation factor:                                          2.43
    Unique aggregates announced to Internet:                     217209
Total ASes present in the Internet Routing Table:                 43311
    Prefixes per ASN:                                             10.23
Origin-only ASes present in the Internet Routing Table:           34169
Origin ASes announcing only one prefix:                           15936
Transit ASes present in the Internet Routing Table:                5755
Transit-only ASes present in the Internet Routing Table:            141
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      29
    Max AS path prepend of ASN ( 28730)                              25
Prefixes from unregistered ASNs in the Routing Table:               384
    Unregistered ASNs in the Routing Table:                         139
Number of 32-bit ASNs allocated by the RIRs:                       3756
Number of 32-bit ASNs visible in the Routing Table:                3387
Prefixes from 32-bit ASNs in the Routing Table:                    9286
Special use prefixes present in the Routing Table:                   17
Prefixes being announced from unallocated address space:            188
Number of addresses announced to Internet:                   2616732428
    Equivalent to 155 /8s, 248 /16s and 43 /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:               94.3
Total number of prefixes smaller than registry allocations:      156364

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

Prefixes being announced by APNIC Region ASes:                   106392
    Total APNIC prefixes after maximum aggregation:               33093
    APNIC Deaggregation factor:                                    3.21
Prefixes being announced from the APNIC address blocks:          107472
    Unique aggregates announced from the APNIC address blocks:    43908
APNIC Region origin ASes present in the Internet Routing Table:    4816
    APNIC Prefixes per ASN:                                       22.32
APNIC Region origin ASes announcing only one prefix:               1237
APNIC Region transit ASes present in the Internet Routing Table:    807
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:    429
Number of APNIC addresses announced to Internet:              718760448
    Equivalent to 42 /8s, 215 /16s and 106 /24s
    Percentage of available APNIC address space announced:         84.0

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:                    155600
    Total ARIN prefixes after maximum aggregation:                78739
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           156259
    Unique aggregates announced from the ARIN address blocks:     70972
ARIN Region origin ASes present in the Internet Routing Table:    15463
    ARIN Prefixes per ASN:                                        10.11
ARIN Region origin ASes announcing only one prefix:                5840
ARIN Region transit ASes present in the Internet Routing Table:    1600
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:      18
Number of ARIN addresses announced to Internet:              1076205440
    Equivalent to 64 /8s, 37 /16s and 151 /24s
    Percentage of available ARIN address space announced:          56.9

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:                    113997
    Total RIPE prefixes after maximum aggregation:                58785
    RIPE Deaggregation factor:                                     1.94
Prefixes being announced from the RIPE address blocks:           117156
    Unique aggregates announced from the RIPE address blocks:     74884
RIPE Region origin ASes present in the Internet Routing Table:    17064
    RIPE Prefixes per ASN:                                         6.87
RIPE Region origin ASes announcing only one prefix:                8151
RIPE Region transit ASes present in the Internet Routing Table:    2778
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2190
Number of RIPE addresses announced to Internet:               653473892
    Equivalent to 38 /8s, 243 /16s and 56 /24s
    Percentage of available RIPE address space announced:          95.0

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:                   47136
    Total LACNIC prefixes after maximum aggregation:               9119
    LACNIC Deaggregation factor:                                   5.17
Prefixes being announced from the LACNIC address blocks:          50849
    Unique aggregates announced from the LACNIC address blocks:   23570
LACNIC Region origin ASes present in the Internet Routing Table:   1810
    LACNIC Prefixes per ASN:                                      28.09
LACNIC Region origin ASes announcing only one prefix:               526
LACNIC Region transit ASes present in the Internet Routing Table:   342
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        27
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   743
Number of LACNIC addresses announced to Internet:             123073832
    Equivalent to 7 /8s, 85 /16s and 245 /24s
    Percentage of available LACNIC address space announced:        73.4

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:                  10524
    Total AfriNIC prefixes after maximum aggregation:              2437
    AfriNIC Deaggregation factor:                                  4.32
Prefixes being announced from the AfriNIC address blocks:         11148
    Unique aggregates announced from the AfriNIC address blocks:   3706
AfriNIC Region origin ASes present in the Internet Routing Table:   599
    AfriNIC Prefixes per ASN:                                     18.61
AfriNIC Region origin ASes announcing only one prefix:              182
AfriNIC Region transit ASes present in the Internet Routing Table:  134
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    7
Number of AfriNIC addresses announced to Internet:             44860416
    Equivalent to 2 /8s, 172 /16s and 132 /24s
    Percentage of available AfriNIC address space announced:       44.6

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     2938      11558         924   Korea Telecom (KIX)
17974     2486        824          85   PT TELEKOMUNIKASI INDONESIA
 7545     1824        301          88   TPG Internet Pty Ltd
 4755     1686        382         190   TATA Communications formerly 
 9829     1430       1144          44   BSNL National Internet Backbo
 9583     1207         89         501   Sify Limited
 7552     1161       1070          12   Vietel Corporation
 4808     1109       2040         316   CNCGROUP IP network: China169
 9498     1061        310          75   BHARTI Airtel Ltd.
24560     1044        385         160   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     3065       3696         101   bellsouth.net, inc. 
 7029     2170       1265         211   Windstream Communications Inc
18566     2080        382         185   Covad Communications 
22773     1987       2931         128   Cox Communications, Inc.
 1785     1955        677         125   PaeTec Communications, Inc.
20115     1692       1610         616   Charter Communications 
 4323     1603       1139         396   Time Warner Telecom
30036     1344        287         686   Mediacom Communications Corp 
 7018     1301      10552         856   AT&T WorldNet Services
11492     1197        217         334   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     1858        544          16   Corbina telecom
 2118     1115         97          13   EUnet/RELCOM Autonomous Syste
34984     1054        232         203   BILISIM TELEKOM
13188      850         99          26   Educational Network
12479      819        783          68   Uni2 Autonomous System
31148      758         39          18   FreeNet ISP
20940      750        255         592   Akamai Technologies European 
 6830      712       2313         433   UPC Distribution Services
 8551      711        367          39   Bezeq International
34744      670        185          43   SC GVM SISTEM 2003 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     2381       1327          87   NET Servicos de Comunicao S.A
10620     2319        397         223   TVCABLE BOGOTA 
 7303     1679       1147         206   Telecom Argentina Stet-France
 8151     1506       2824         396   UniNet S.A. de C.V. 
 6503     1445        435          67   AVANTEL, S.A. 
14754      939        120          78   Telgua S. A. 
27947      776         86          98   Telconet S.A
18881      771        716          18   Global Village Telecom 
 3816      686        306          87   Empresa Nacional de Telecomun
 7738      613       1242          34   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
36998     1286         80           4   MOBITEL
24863      898        275          36   LINKdotNET AS number
 8452      542        958          13   TEDATA
 6713      503        602          20   Itissalat Al-MAGHRIB
24835      329         80           8   RAYA Telecom - Egypt
 3741      266        906         224   The Internet Solution 
12258      193         28          67   Vodacom Internet Company 
15706      191         32           6   Sudatel Internet Exchange Aut
29975      191        667          21   Vodacom
16637      189        696          90   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
 6389     3065       3696         101   bellsouth.net, inc. 
 4766     2938      11558         924   Korea Telecom (KIX)
17974     2486        824          85   PT TELEKOMUNIKASI INDONESIA
28573     2381       1327          87   NET Servicos de Comunicao S.A
10620     2319        397         223   TVCABLE BOGOTA 
 7029     2170       1265         211   Windstream Communications Inc
18566     2080        382         185   Covad Communications 
22773     1987       2931         128   Cox Communications, Inc.
 1785     1955        677         125   PaeTec Communications, Inc.
 8402     1858        544          16   Corbina telecom

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

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

  ASN   No of nets  Net Savings Description
17974      2486        2401      PT TELEKOMUNIKASI INDONESIA
28573      2381        2294      NET Servicos de Comunicao S.A
10620      2319        2096      TVCABLE BOGOTA 
 4766      2938        2014      Korea Telecom (KIX)
 7029      2170        1959      Windstream Communications Inc
18566      2080        1895      Covad Communications 
22773      1987        1859      Cox Communications, Inc.
 8402      1858        1842      Corbina telecom
 1785      1955        1830      PaeTec Communications, Inc.
 7545      1824        1736      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
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
128.0.60.0/23        57417     INTERNET TASMANIA SRL
128.0.62.0/23        57417     INTERNET TASMANIA SRL
128.0.72.0/21        23456     32-bit ASN transition
128.0.80.0/20        52041     Timer LTD
128.0.96.0/21        12886     LEWTelNet GmbH
128.0.104.0/23       51848     FOP Gabidullina Ludmila Nikol
128.0.106.0/24       23456     32-bit ASN transition

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

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

Network            Origin AS  Description
41.138.95.0/24       36930     ZanZibar Telecom
41.222.80.0/21       37110     Moztel LDA
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 
64.185.224.0/24      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.

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        /8:17       /9:13      /10:29      /11:88      /12:246     
/13:483     /14:865     /15:1553    /16:12565   /17:6594    /18:11003   
/19:21737   /20:31235   /21:33357   /22:45541   /23:41171   /24:232283  
/25:1389    /26:1750    /27:859     /28:182     /29:75      /30:16      
/31:0       /32:21      

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

  ASN   No of nets  Total ann.   Description
18566     2030          2080      Covad Communications 
 6389     1758          3065      bellsouth.net, inc. 
 8402     1585          1858      Corbina telecom
 7029     1554          2170      Windstream Communications Inc
22773     1303          1987      Cox Communications, Inc.
36998     1280          1286      MOBITEL
30036     1235          1344      Mediacom Communications Corp 
11492     1160          1197      Cable One 
 1785     1035          1955      PaeTec Communications, Inc.
 6503      965          1445      AVANTEL, S.A. 

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

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

   1:672       2:747       3:3         4:13        5:760       6:3      
   8:499      12:1935     13:3        14:741      15:11       16:3      
  17:8        20:24       23:240      24:1798     27:1445     31:1131   
  32:54       33:2        34:5        36:11       37:1288     38:847    
  39:2        40:141      41:2713     42:179      44:4        46:1743   
  47:1        49:579      50:654      52:12       54:28       55:9      
  57:28       58:1079     59:560      60:251      61:1321     62:1027   
  63:2027     64:4308     65:2147     66:4263     67:2046     68:1125   
  69:3267     70:856      71:525      72:1875     74:2531     75:421    
  76:289      77:1078     78:1036     79:542      80:1215     81:972    
  82:627      83:538      84:558      85:1155     86:475      87:929    
  88:382      89:1746     90:278      91:5412     92:622      93:1693   
  94:2056     95:1589     96:506      97:336      98:1037     99:52     
 100:30      101:315     103:2122    105:519     106:131     107:206    
 108:511     109:1764    110:855     111:1014    112:487     113:739    
 114:684     115:920     116:876     117:787     118:984     119:1272   
 120:377     121:701     122:1738    123:1183    124:1320    125:1310   
 128:541     129:202     130:316     131:641     132:328     133:143    
 134:259     135:62      136:222     137:236     138:342     139:159    
 140:216     141:316     142:519     143:369     144:478     145:88     
 146:525     147:335     148:720     149:349     150:156     151:400    
 152:400     153:191     154:28      155:367     156:242     157:387    
 158:260     159:712     160:333     161:422     162:361     163:203    
 164:577     165:450     166:436     167:572     168:1010    169:131    
 170:940     171:164     172:4       173:1548    174:586     175:417    
 176:1166    177:1670    178:1742    180:1384    181:231     182:1153   
 183:321     184:635     185:236     186:2260    187:1427    188:1936   
 189:1539    190:6638    192:6322    193:5654    194:4643    195:3678   
 196:1290    197:891     198:4154    199:5221    200:6025    201:2146   
 202:8887    203:8759    204:4470    205:2544    206:2803    207:2810   
 208:4059    209:3508    210:2920    211:1565    212:1937    213:1904   
 214:901     215:93      216:5095    217:1586    218:594     219:328    
 220:1263    221:549     222:329     223:421    

End of report


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