[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jul 12 18:33:32 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 13 Jul, 2013

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

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

BGP routing table entries examined:                              458665
    Prefixes after maximum aggregation:                          186702
    Deaggregation factor:                                          2.46
    Unique aggregates announced to Internet:                     227996
Total ASes present in the Internet Routing Table:                 44488
    Prefixes per ASN:                                             10.31
Origin-only ASes present in the Internet Routing Table:           34829
Origin ASes announcing only one prefix:                           16175
Transit ASes present in the Internet Routing Table:                5881
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:              2692
    Unregistered ASNs in the Routing Table:                        1140
Number of 32-bit ASNs allocated by the RIRs:                       4870
Number of 32-bit ASNs visible in the Routing Table:                3778
Prefixes from 32-bit ASNs in the Routing Table:                   11268
Special use prefixes present in the Routing Table:                   27
Prefixes being announced from unallocated address space:            293
Number of addresses announced to Internet:                   2628759084
    Equivalent to 156 /8s, 175 /16s and 174 /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:      160376

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

Prefixes being announced by APNIC Region ASes:                   110093
    Total APNIC prefixes after maximum aggregation:               33771
    APNIC Deaggregation factor:                                    3.26
Prefixes being announced from the APNIC address blocks:          112014
    Unique aggregates announced from the APNIC address blocks:    46055
APNIC Region origin ASes present in the Internet Routing Table:    4849
    APNIC Prefixes per ASN:                                       23.10
APNIC Region origin ASes announcing only one prefix:               1214
APNIC Region transit ASes present in the Internet Routing Table:    826
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         23
Number of APNIC region 32-bit ASNs visible in the Routing Table:    601
Number of APNIC addresses announced to Internet:              725913568
    Equivalent to 43 /8s, 68 /16s and 143 /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:                    159152
    Total ARIN prefixes after maximum aggregation:                80574
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           159683
    Unique aggregates announced from the ARIN address blocks:     73949
ARIN Region origin ASes present in the Internet Routing Table:    15772
    ARIN Prefixes per ASN:                                        10.12
ARIN Region origin ASes announcing only one prefix:                5995
ARIN Region transit ASes present in the Internet Routing Table:    1641
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:              1066464064
    Equivalent to 63 /8s, 144 /16s and 243 /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:                    118497
    Total RIPE prefixes after maximum aggregation:                60385
    RIPE Deaggregation factor:                                     1.96
Prefixes being announced from the RIPE address blocks:           121981
    Unique aggregates announced from the RIPE address blocks:     78813
RIPE Region origin ASes present in the Internet Routing Table:    17289
    RIPE Prefixes per ASN:                                         7.06
RIPE Region origin ASes announcing only one prefix:                8199
RIPE Region transit ASes present in the Internet Routing Table:    2831
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:    2376
Number of RIPE addresses announced to Internet:               656325988
    Equivalent to 39 /8s, 30 /16s and 189 /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:                   48671
    Total LACNIC prefixes after maximum aggregation:               9411
    LACNIC Deaggregation factor:                                   5.17
Prefixes being announced from the LACNIC address blocks:          53175
    Unique aggregates announced from the LACNIC address blocks:   24939
LACNIC Region origin ASes present in the Internet Routing Table:   1977
    LACNIC Prefixes per ASN:                                      26.90
LACNIC Region origin ASes announcing only one prefix:               579
LACNIC Region transit ASes present in the Internet Routing Table:   362
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:   776
Number of LACNIC addresses announced to Internet:             133326248
    Equivalent to 7 /8s, 242 /16s and 101 /24s
    Percentage of available LACNIC address space announced:        79.5

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:                  10896
    Total AfriNIC prefixes after maximum aggregation:              2521
    AfriNIC Deaggregation factor:                                  4.32
Prefixes being announced from the AfriNIC address blocks:         11519
    Unique aggregates announced from the AfriNIC address blocks:   3974
AfriNIC Region origin ASes present in the Internet Routing Table:   647
    AfriNIC Prefixes per ASN:                                     17.80
AfriNIC Region origin ASes announcing only one prefix:              188
AfriNIC Region transit ASes present in the Internet Routing Table:  132
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:             46329600
    Equivalent to 2 /8s, 194 /16s and 239 /24s
    Percentage of available AfriNIC address space announced:       46.0

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     2930      11560         919   Korea Telecom (KIX)
17974     2580        855          92   PT TELEKOMUNIKASI INDONESIA
 7545     2024        320         108   TPG Internet Pty Ltd
 4755     1755        391         193   TATA Communications formerly 
 9829     1531       1220          44   BSNL National Internet Backbo
 9583     1463        118         564   Sify Limited
 4808     1172       2151         340   CNCGROUP IP network: China169
 7552     1159       1080          13   Vietel Corporation
 9498     1159        309          71   BHARTI Airtel Ltd.
24560     1085        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     2988       3691          69   bellsouth.net, inc. 
18566     2066        382         184   Covad Communications 
 1785     1999        678         126   PaeTec Communications, Inc.
22773     1992       2927         123   Cox Communications, Inc.
20115     1663       1617         616   Charter Communications 
 4323     1613       1134         403   Time Warner Telecom
  701     1531      11127         798   UUNET Technologies, Inc. 
30036     1351        304         657   Mediacom Communications Corp 
 7018     1298      11034         820   AT&T WorldNet Services
11492     1224        218         360   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     1294        244         222   BILISIM TELEKOM
 2118     1271         97          13   EUnet/RELCOM Autonomous Syste
20940      907        313         720   Akamai Technologies European 
13188      837         98          81   Educational Network
31148      801         40          25   FreeNet ISP
 6830      786       2376         441   UPC Distribution Services
 8551      782        370          45   Bezeq International
12479      679        789          57   Uni2 Autonomous System
34744      648        160          85   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     2902       1586         111   NET Servicos de Comunicao S.A
10620     2685        421         202   TVCABLE BOGOTA 
 7303     1732       1155         221   Telecom Argentina Stet-France
 8151     1269       2747         384   UniNet S.A. de C.V. 
18881     1119        844          20   Global Village Telecom 
27947      829         94          91   Telconet S.A
 6503      819        434          63   AVANTEL, S.A. 
 3816      718        306          85   Empresa Nacional de Telecomun
 7738      698       1370          35   Telecomunicacoes da Bahia S.A
11172      619         88          65   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     1172         80           4   MOBITEL
24863      883        274          30   LINKdotNET AS number
 6713      542        617          25   Itissalat Al-MAGHRIB
 8452      453        956           9   TEDATA
24835      345         80           8   RAYA Telecom - Egypt
 3741      259        922         218   The Internet Solution 
15706      220         32           6   Sudatel Internet Exchange Aut
29571      219         17          12   Ci Telecom Autonomous system 
36992      205        527          22   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     2988       3691          69   bellsouth.net, inc. 
 4766     2930      11560         919   Korea Telecom (KIX)
28573     2902       1586         111   NET Servicos de Comunicao S.A
10620     2685        421         202   TVCABLE BOGOTA 
17974     2580        855          92   PT TELEKOMUNIKASI INDONESIA
18566     2066        382         184   Covad Communications 
 7545     2024        320         108   TPG Internet Pty Ltd
 1785     1999        678         126   PaeTec Communications, Inc.
22773     1992       2927         123   Cox Communications, Inc.
 4755     1755        391         193   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      2902        2791      NET Servicos de Comunicao S.A
17974      2580        2488      PT TELEKOMUNIKASI INDONESIA
10620      2685        2483      TVCABLE BOGOTA 
 4766      2930        2011      Korea Telecom (KIX)
 7545      2024        1916      TPG Internet Pty Ltd
18566      2066        1882      Covad Communications 
 1785      1999        1873      PaeTec Communications, Inc.
22773      1992        1869      Cox Communications, Inc.
 8402      1607        1591      Corbina telecom
 4755      1755        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
59628   UNALLOCATED  5.200.128.0/17       48159       Telecommunication In
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 

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
128.0.56.0/24        60996     >>UNKNOWN<<

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

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

Network            Origin AS  Description
5.200.128.0/17       59628     >>UNKNOWN<<
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.

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     /14:901     /15:1602    /16:12723   /17:6656    /18:11056   
/19:22498   /20:32123   /21:34527   /22:48387   /23:42402   /24:241094  
/25:1275    /26:1531    /27:863     /28:41      /29:68      /30:19      
/31:0       /32:18      

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

  ASN   No of nets  Total ann.   Description
18566     2017          2066      Covad Communications 
 6389     1716          2988      bellsouth.net, inc. 
 8402     1305          1607      Corbina telecom
22773     1295          1992      Cox Communications, Inc.
30036     1218          1351      Mediacom Communications Corp 
11492     1185          1224      Cable One 
36998     1140          1172      MOBITEL
 1785     1068          1999      PaeTec Communications, Inc.
 6983     1018          1147      ITC^Deltacom 
10620     1000          2685      TVCABLE BOGOTA 

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

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

   1:839       2:735       3:3         4:19        5:806       6:16     
   8:563      12:1912     13:3        14:857      15:11       16:3      
  17:10       20:17       23:305      24:1779     27:1485     31:1318   
  32:45       33:2        34:5        36:59       37:1865     38:879    
  39:2        40:171      41:2755     42:229      44:8        46:1956   
  47:2        49:659      50:756      52:12       54:35       55:5      
  57:26       58:1157     59:583      60:328      61:1415     62:1126   
  63:2013     64:4337     65:2160     66:4179     67:2020     68:1075   
  69:3296     70:796      71:491      72:1941     74:2468     75:323    
  76:308      77:1144     78:1003     79:614      80:1272     81:1018   
  82:634      83:582      84:595      85:1192     86:459      87:1020   
  88:544      89:1788     90:149      91:5526     92:618      93:1778   
  94:1934     95:1693     96:524      97:342      98:1024     99:42     
 100:30      101:586     103:2927    105:472     106:139     107:208    
 108:513     109:1866    110:921     111:1063    112:552     113:815    
 114:693     115:993     116:967     117:801     118:1116    119:1319   
 120:384     121:739     122:1802    123:1221    124:1375    125:1392   
 128:638     129:223     130:309     131:670     132:360     133:155    
 134:269     135:68      136:256     137:243     138:340     139:191    
 140:201     141:326     142:543     143:392     144:503     145:98     
 146:525     147:398     148:669     149:352     150:148     151:520    
 152:415     153:189     154:28      155:416     156:265     157:398    
 158:279     159:721     160:344     161:450     162:480     163:225    
 164:581     165:501     166:254     167:596     168:1028    169:129    
 170:1061    171:181     172:23      173:1592    174:545     175:484    
 176:1131    177:2138    178:1871    179:62      180:1463    181:492    
 182:1263    183:421     184:670     185:635     186:2313    187:1328   
 188:2106    189:1254    190:6630    192:6852    193:5860    194:4633   
 195:3467    196:1350    197:898     198:4507    199:5349    200:6003   
 201:2171    202:8829    203:8882    204:4503    205:2566    206:2833   
 207:2846    208:4012    209:3598    210:2902    211:1519    212:2181   
 213:1998    214:911     215:99      216:5251    217:1614    218:620    
 219:321     220:1277    221:559     222:321     223:446    

End of report


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