[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jul 5 18:33:18 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 06 Jul, 2013

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

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

BGP routing table entries examined:                              457245
    Prefixes after maximum aggregation:                          186378
    Deaggregation factor:                                          2.45
    Unique aggregates announced to Internet:                     227307
Total ASes present in the Internet Routing Table:                 44422
    Prefixes per ASN:                                             10.29
Origin-only ASes present in the Internet Routing Table:           34778
Origin ASes announcing only one prefix:                           16159
Transit ASes present in the Internet Routing Table:                5883
Transit-only ASes present in the Internet Routing Table:            149
Average AS path length visible in the Internet Routing Table:       4.7
    Max AS path length visible:                                      29
    Max AS path prepend of ASN ( 36992)                              22
Prefixes from unregistered ASNs in the Routing Table:              2057
    Unregistered ASNs in the Routing Table:                         954
Number of 32-bit ASNs allocated by the RIRs:                       4849
Number of 32-bit ASNs visible in the Routing Table:                3761
Prefixes from 32-bit ASNs in the Routing Table:                   11148
Special use prefixes present in the Routing Table:                   26
Prefixes being announced from unallocated address space:            229
Number of addresses announced to Internet:                   2627368716
    Equivalent to 156 /8s, 154 /16s and 119 /24s
    Percentage of available address space announced:               71.0
    Percentage of allocated address space announced:               71.0
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               94.7
Total number of prefixes smaller than registry allocations:      160122

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

Prefixes being announced by APNIC Region ASes:                   109526
    Total APNIC prefixes after maximum aggregation:               33712
    APNIC Deaggregation factor:                                    3.25
Prefixes being announced from the APNIC address blocks:          111400
    Unique aggregates announced from the APNIC address blocks:    45812
APNIC Region origin ASes present in the Internet Routing Table:    4855
    APNIC Prefixes per ASN:                                       22.95
APNIC Region origin ASes announcing only one prefix:               1215
APNIC Region transit ASes present in the Internet Routing Table:    823
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         23
Number of APNIC region 32-bit ASNs visible in the Routing Table:    594
Number of APNIC addresses announced to Internet:              725326816
    Equivalent to 43 /8s, 59 /16s and 155 /24s
    Percentage of available APNIC address space announced:         84.8

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:                    158961
    Total ARIN prefixes after maximum aggregation:                80408
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           159568
    Unique aggregates announced from the ARIN address blocks:     73819
ARIN Region origin ASes present in the Internet Routing Table:    15747
    ARIN Prefixes per ASN:                                        10.13
ARIN Region origin ASes announcing only one prefix:                5988
ARIN Region transit ASes present in the Internet Routing Table:    1638
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:              1065545024
    Equivalent to 63 /8s, 130 /16s and 237 /24s
    Percentage of available ARIN address space announced:          56.4

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, 62464-63487, 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:                    117757
    Total RIPE prefixes after maximum aggregation:                60247
    RIPE Deaggregation factor:                                     1.95
Prefixes being announced from the RIPE address blocks:           121219
    Unique aggregates announced from the RIPE address blocks:     78510
RIPE Region origin ASes present in the Internet Routing Table:    17267
    RIPE Prefixes per ASN:                                         7.02
RIPE Region origin ASes announcing only one prefix:                8183
RIPE Region transit ASes present in the Internet Routing Table:    2837
Average RIPE Region AS path length visible:                         5.2
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2372
Number of RIPE addresses announced to Internet:               656761444
    Equivalent to 39 /8s, 37 /16s and 98 /24s
    Percentage of available RIPE address space announced:          95.5

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:                   48702
    Total LACNIC prefixes after maximum aggregation:               9452
    LACNIC Deaggregation factor:                                   5.15
Prefixes being announced from the LACNIC address blocks:          53152
    Unique aggregates announced from the LACNIC address blocks:   24967
LACNIC Region origin ASes present in the Internet Routing Table:   1970
    LACNIC Prefixes per ASN:                                      26.98
LACNIC Region origin ASes announcing only one prefix:               581
LACNIC Region transit ASes present in the Internet Routing Table:   360
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:   770
Number of LACNIC addresses announced to Internet:             133069448
    Equivalent to 7 /8s, 238 /16s and 122 /24s
    Percentage of available LACNIC address space announced:        79.3

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 262144-263679 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:                  11061
    Total AfriNIC prefixes after maximum aggregation:              2518
    AfriNIC Deaggregation factor:                                  4.39
Prefixes being announced from the AfriNIC address blocks:         11677
    Unique aggregates announced from the AfriNIC address blocks:   3988
AfriNIC Region origin ASes present in the Internet Routing Table:   645
    AfriNIC Prefixes per ASN:                                     18.10
AfriNIC Region origin ASes announcing only one prefix:              192
AfriNIC Region transit ASes present in the Internet Routing Table:  134
Average AfriNIC Region AS path length visible:                      4.8
    Max AfriNIC Region AS path length visible:                       25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    6
Number of AfriNIC addresses announced to Internet:             46364160
    Equivalent to 2 /8s, 195 /16s and 118 /24s
    Percentage of available AfriNIC address space announced:       46.1

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     2939      11561         922   Korea Telecom (KIX)
17974     2569        855          92   PT TELEKOMUNIKASI INDONESIA
 7545     2026        320         108   TPG Internet Pty Ltd
 4755     1754        391         192   TATA Communications formerly 
 9829     1517       1205          40   BSNL National Internet Backbo
 9583     1462        117         563   Sify Limited
 4808     1173       2151         340   CNCGROUP IP network: China169
 9498     1149        309          71   BHARTI Airtel Ltd.
 7552     1130       1080          13   Vietel Corporation
24560     1080        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     2990       3691          69   bellsouth.net, inc. 
18566     2066        382         184   Covad Communications 
 1785     1997        678         126   PaeTec Communications, Inc.
22773     1988       2927         123   Cox Communications, Inc.
20115     1667       1618         620   Charter Communications 
 4323     1621       1137         403   Time Warner Telecom
  701     1531      11127         798   UUNET Technologies, Inc. 
30036     1338        300         662   Mediacom Communications Corp 
 7018     1295      11035         819   AT&T WorldNet Services
11492     1223        218         359   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     1607        544          16   Corbina telecom
34984     1280        244         222   BILISIM TELEKOM
 2118     1271         97          13   EUnet/RELCOM Autonomous Syste
20940      907        318         712   Akamai Technologies European 
31148      808         40          25   FreeNet ISP
13188      788         95          93   Educational Network
 6830      782       2375         439   UPC Distribution Services
 8551      780        370          45   Bezeq International
12479      673        789          57   Uni2 Autonomous System
34744      656        171          76   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     2918       1576         107   NET Servicos de Comunicao S.A
10620     2684        421         191   TVCABLE BOGOTA 
 7303     1732       1155         221   Telecom Argentina Stet-France
 8151     1256       2743         382   UniNet S.A. de C.V. 
18881     1092        844          20   Global Village Telecom 
 6503      862        434          65   AVANTEL, S.A. 
27947      824         94          93   Telconet S.A
 3816      717        306          85   Empresa Nacional de Telecomun
 7738      698       1370          35   Telecomunicacoes da Bahia S.A
22047      585        334          15   VTR PUNTO NET 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     1298         80           4   MOBITEL
24863      883        274          30   LINKdotNET AS number
 6713      542        617          25   Itissalat Al-MAGHRIB
 8452      461        956           9   TEDATA
24835      345         80           8   RAYA Telecom - Egypt
 3741      259        922         218   The Internet Solution 
15706      222         32           6   Sudatel Internet Exchange Aut
29571      219         17          12   Ci Telecom Autonomous system 
36992      203        527          21   Etisalat MISR
12258      194         28          67   Vodacom Internet Company 

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     2990       3691          69   bellsouth.net, inc. 
 4766     2939      11561         922   Korea Telecom (KIX)
28573     2918       1576         107   NET Servicos de Comunicao S.A
10620     2684        421         191   TVCABLE BOGOTA 
17974     2569        855          92   PT TELEKOMUNIKASI INDONESIA
18566     2066        382         184   Covad Communications 
 7545     2026        320         108   TPG Internet Pty Ltd
 1785     1997        678         126   PaeTec Communications, Inc.
22773     1988       2927         123   Cox Communications, Inc.
 4755     1754        391         192   TATA Communications formerly 

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      2918        2811      NET Servicos de Comunicao S.A
10620      2684        2493      TVCABLE BOGOTA 
17974      2569        2477      PT TELEKOMUNIKASI INDONESIA
 4766      2939        2017      Korea Telecom (KIX)
 7545      2026        1918      TPG Internet Pty Ltd
18566      2066        1882      Covad Communications 
 1785      1997        1871      PaeTec Communications, Inc.
22773      1988        1865      Cox Communications, Inc.
 8402      1607        1591      Corbina telecom
 4755      1754        1562      TATA Communications formerly 

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
128.0.42.0/24        60619     >>UNKNOWN<<
128.0.43.0/24        60619     >>UNKNOWN<<
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

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      /11:92      /12:250     
/13:482     /14:899     /15:1603    /16:12708   /17:6636    /18:11097   
/19:22496   /20:32068   /21:34463   /22:48120   /23:42352   /24:240124  
/25:1274    /26:1533    /27:847     /28:43      /29:67      /30:18      
/31:0       /32:16      

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

  ASN   No of nets  Total ann.   Description
18566     2017          2066      Covad Communications 
 6389     1717          2990      bellsouth.net, inc. 
 8402     1317          1607      Corbina telecom
22773     1293          1988      Cox Communications, Inc.
36998     1266          1298      MOBITEL
30036     1206          1338      Mediacom Communications Corp 
11492     1184          1223      Cable One 
 1785     1065          1997      PaeTec Communications, Inc.
 6983     1015          1144      ITC^Deltacom 
10620      998          2684      TVCABLE BOGOTA 

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

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

   1:844       2:750       3:3         4:15        5:813       6:16     
   8:562      12:1920     13:3        14:863      15:11       16:3      
  17:10       20:17       23:295      24:1771     27:1473     31:1249   
  32:45       33:2        34:5        36:52       37:1851     38:878    
  39:2        40:171      41:2791     42:214      44:8        46:1917   
  47:2        49:664      50:750      52:12       54:35       55:4      
  57:26       58:1154     59:584      60:328      61:1409     62:1129   
  63:2013     64:4329     65:2160     66:4173     67:2029     68:1076   
  69:3279     70:835      71:491      72:1930     74:2465     75:324    
  76:309      77:1118     78:1011     79:619      80:1274     81:1016   
  82:630      83:592      84:588      85:1178     86:449      87:1012   
  88:544      89:1751     90:149      91:5516     92:606      93:1775   
  94:1895     95:1635     96:523      97:342      98:1016     99:42     
 100:30      101:320     103:2924    105:519     106:138     107:207    
 108:513     109:1840    110:912     111:1059    112:543     113:815    
 114:682     115:964     116:959     117:799     118:1092    119:1315   
 120:387     121:735     122:1796    123:1216    124:1375    125:1384   
 128:623     129:225     130:304     131:668     132:359     133:155    
 134:269     135:68      136:223     137:243     138:340     139:190    
 140:209     141:326     142:541     143:377     144:482     145:94     
 146:510     147:386     148:644     149:351     150:146     151:520    
 152:417     153:189     154:24      155:413     156:265     157:399    
 158:279     159:712     160:344     161:451     162:470     163:222    
 164:602     165:498     166:245     167:595     168:1021    169:128    
 170:1058    171:180     172:21      173:1594    174:544     175:474    
 176:1118    177:2133    178:1852    179:52      180:1459    181:500    
 182:1257    183:423     184:668     185:609     186:2303    187:1302   
 188:2062    189:1274    190:6773    192:6805    193:5850    194:4624   
 195:3462    196:1362    197:934     198:4504    199:5351    200:5972   
 201:2149    202:8788    203:8883    204:4510    205:2557    206:2808   
 207:2848    208:4019    209:3607    210:2923    211:1519    212:2187   
 213:1985    214:905     215:99      216:5249    217:1619    218:621    
 219:322     220:1281    221:557     222:321     223:451    

End of report


More information about the sanog mailing list