Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Aug 29 18:11:41 UTC 2014


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 30 Aug, 2014

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

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

BGP routing table entries examined:                              509487
    Prefixes after maximum aggregation:                          197642
    Deaggregation factor:                                          2.58
    Unique aggregates announced to Internet:                     249829
Total ASes present in the Internet Routing Table:                 47575
    Prefixes per ASN:                                             10.71
Origin-only ASes present in the Internet Routing Table:           36092
Origin ASes announcing only one prefix:                           16390
Transit ASes present in the Internet Routing Table:                6138
Transit-only ASes present in the Internet Routing Table:            181
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      53
    Max AS path prepend of ASN ( 50404)                              51
Prefixes from unregistered ASNs in the Routing Table:              1642
    Unregistered ASNs in the Routing Table:                         442
Number of 32-bit ASNs allocated by the RIRs:                       7296
Number of 32-bit ASNs visible in the Routing Table:                5345
Prefixes from 32-bit ASNs in the Routing Table:                   19533
Number of bogon 32-bit ASNs visible in the Routing Table:           619
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            347
Number of addresses announced to Internet:                   2717084100
    Equivalent to 161 /8s, 243 /16s and 105 /24s
    Percentage of available address space announced:               73.4
    Percentage of allocated address space announced:               73.4
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               96.8
Total number of prefixes smaller than registry allocations:      175050

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

Prefixes being announced by APNIC Region ASes:                   124591
    Total APNIC prefixes after maximum aggregation:               36399
    APNIC Deaggregation factor:                                    3.42
Prefixes being announced from the APNIC address blocks:          128175
    Unique aggregates announced from the APNIC address blocks:    52441
APNIC Region origin ASes present in the Internet Routing Table:    4981
    APNIC Prefixes per ASN:                                       25.73
APNIC Region origin ASes announcing only one prefix:               1226
APNIC Region transit ASes present in the Internet Routing Table:    865
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         24
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1071
Number of APNIC addresses announced to Internet:              735509312
    Equivalent to 43 /8s, 214 /16s and 251 /24s
    Percentage of available APNIC address space announced:         86.0

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-63999, 131072-133631
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:                    169628
    Total ARIN prefixes after maximum aggregation:                84831
    ARIN Deaggregation factor:                                     2.00
Prefixes being announced from the ARIN address blocks:           171579
    Unique aggregates announced from the ARIN address blocks:     80176
ARIN Region origin ASes present in the Internet Routing Table:    16344
    ARIN Prefixes per ASN:                                        10.50
ARIN Region origin ASes announcing only one prefix:                6114
ARIN Region transit ASes present in the Internet Routing Table:    1690
Average ARIN Region AS path length visible:                         4.0
    Max ARIN Region AS path length visible:                          22
Number of ARIN region 32-bit ASNs visible in the Routing Table:     177
Number of ARIN addresses announced to Internet:              1094318080
    Equivalent to 65 /8s, 57 /16s and 248 /24s
    Percentage of available ARIN address space announced:          57.9

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, 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:                    125003
    Total RIPE prefixes after maximum aggregation:                63089
    RIPE Deaggregation factor:                                     1.98
Prefixes being announced from the RIPE address blocks:           129834
    Unique aggregates announced from the RIPE address blocks:     82126
RIPE Region origin ASes present in the Internet Routing Table:    17709
    RIPE Prefixes per ASN:                                         7.33
RIPE Region origin ASes announcing only one prefix:                8225
RIPE Region transit ASes present in the Internet Routing Table:    2887
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          53
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2738
Number of RIPE addresses announced to Internet:               658843524
    Equivalent to 39 /8s, 69 /16s and 39 /24s
    Percentage of available RIPE address space announced:          95.8

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, 61952-62463, 196608-202239
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:                   59604
    Total LACNIC prefixes after maximum aggregation:              10545
    LACNIC Deaggregation factor:                                   5.65
Prefixes being announced from the LACNIC address blocks:          67711
    Unique aggregates announced from the LACNIC address blocks:   30158
LACNIC Region origin ASes present in the Internet Routing Table:   2256
    LACNIC Prefixes per ASN:                                      30.01
LACNIC Region origin ASes announcing only one prefix:               608
LACNIC Region transit ASes present in the Internet Routing Table:   456
Average LACNIC Region AS path length visible:                       4.6
    Max LACNIC Region AS path length visible:                        26
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1306
Number of LACNIC addresses announced to Internet:             169664768
    Equivalent to 10 /8s, 28 /16s and 225 /24s
    Percentage of available LACNIC address space announced:       101.1

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:                  11032
    Total AfriNIC prefixes after maximum aggregation:              2742
    AfriNIC Deaggregation factor:                                  4.02
Prefixes being announced from the AfriNIC address blocks:         11841
    Unique aggregates announced from the AfriNIC address blocks:   4626
AfriNIC Region origin ASes present in the Internet Routing Table:   735
    AfriNIC Prefixes per ASN:                                     16.11
AfriNIC Region origin ASes announcing only one prefix:              217
AfriNIC Region transit ASes present in the Internet Routing Table:  157
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:   53
Number of AfriNIC addresses announced to Internet:             58322688
    Equivalent to 3 /8s, 121 /16s and 239 /24s
    Percentage of available AfriNIC address space announced:       57.9

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     2934      11591         919   Korea Telecom
17974     2808        900          74   PT Telekomunikasi Indonesia
 7545     2333        336         120   TPG Telecom Limited
 4755     1893        413         192   TATA Communications formerly 
 9829     1654       1307          32   National Internet Backbone
 9583     1316        104         538   Sify Limited
 9498     1301        317          92   BHARTI Airtel Ltd.
 7552     1238       1098          14   Viettel Corporation
 9808     1236       6639          15   Guangdong Mobile Communicatio
 4808     1202       2158         369   CNCGROUP IP network China169 

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
22773     2928       2940         142   Cox Communications Inc.
 6389     2896       3688          51   BellSouth.net Inc.
18566     2045        379         178   MegaPath Corporation
 7029     1916       1957         305   Windstream Communications Inc
20115     1772       1756         524   Charter Communications
 4323     1623       1055         407   tw telecom holdings, inc.
30036     1555        326         535   Mediacom Communications Corp
 6983     1444        817         314   ITC^Deltacom
  701     1437      11242         721   MCI Communications Services, 
22561     1308        408         237   CenturyTel Internet Holdings,

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
34984     1743        298         281   TELLCOM ILETISIM HIZMETLERI A
20940     1474        570        1084   Akamai International B.V.
 8402     1319        544          15   OJSC "Vimpelcom"
31148     1042         45          20   Freenet Ltd.
13188     1041         97          49   TOV "Bank-Inform"
 8551      980        371          41   Bezeq International-Ltd
 6849      807        356          27   JSC "Ukrtelecom"
12479      784        798          58   France Telecom Espana SA
 6830      773       2335         428   Liberty Global Operations B.V
 9198      648        346          28   JSC Kazakhtelecom

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     3357       2315         117   NET Serviços de Comunicação S
10620     2961        480         215   Telmex Colombia S.A.
18881     2084       1036          22   Global Village Telecom
 7303     1768       1180         234   Telecom Argentina S.A.
 6147     1739        374          30   Telefonica del Peru S.A.A.
 8151     1467       2999         433   Uninet S.A. de C.V.
 6503     1095        434          61   Axtel, S.A.B. de C.V.
 7738      977       1882          41   Telemar Norte Leste S.A.
27947      902        130          51   Telconet S.A
26615      897       2325          35   Tim Celular 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      941        280          26   Link Egypt (Link.NET)
 6713      669        744          37   Office National des Postes et
 8452      599        958          13   TE-AS
36992      315        816          27   ETISALAT MISR
24835      307        144           9   Vodafone Data
 3741      249        920         212   Internet Solutions
29571      237         22          17   Cote d'Ivoire Telecom
37054      236         19           6   Data Telecom Service
15706      186         17           6   Sudatel (Sudan Telecom Co. Lt
12258      174         26          71   MWEB CONNECT (PROPRIETARY) LI

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
28573     3357       2315         117   NET Serviços de Comunicação S
10620     2961        480         215   Telmex Colombia S.A.
 4766     2934      11591         919   Korea Telecom
22773     2928       2940         142   Cox Communications Inc.
 6389     2896       3688          51   BellSouth.net Inc.
17974     2808        900          74   PT Telekomunikasi Indonesia
 7545     2333        336         120   TPG Telecom Limited
18881     2084       1036          22   Global Village Telecom
18566     2045        379         178   MegaPath Corporation
 7029     1916       1957         305   Windstream Communications Inc

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

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

  ASN   No of nets  Net Savings Description
 6389      2896        2845      BellSouth.net Inc.
22773      2928        2786      Cox Communications Inc.
10620      2961        2746      Telmex Colombia S.A.
17974      2808        2734      PT Telekomunikasi Indonesia
 7545      2333        2213      TPG Telecom Limited
18881      2084        2062      Global Village Telecom
 4766      2934        2015      Korea Telecom
18566      2045        1867      MegaPath Corporation
 6147      1739        1709      Telefonica del Peru S.A.A.
 4755      1893        1701      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
30662   UNALLOCATED  8.2.129.0/24          3356       Level 3 Communicatio
53506   UNALLOCATED  8.17.102.0/23         2828       XO Communications
20260   UNALLOCATED  8.25.160.0/24         3356       Level 3 Communicatio
20260   UNALLOCATED  8.25.161.0/24         3356       Level 3 Communicatio
46473   UNALLOCATED  8.27.122.0/24        12180       Internap Network Ser
46473   UNALLOCATED  8.27.124.0/24        12180       Internap Network Ser
55020   UNALLOCATED  8.30.123.0/24         3356       Level 3 Communicatio
27205   UNALLOCATED  8.38.16.0/21          6461       Abovenet Communicati
15347   UNALLOCATED  8.224.147.0/24       12064       Cox Communications I
33628   UNALLOCATED  12.0.239.0/24         1239       Sprint

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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
100.65.0.0/24         4826     Vocus Connect International B

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

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

Network            Origin AS  Description
5.100.241.0/24       23456     32bit Transition AS
24.231.96.0/24       21548     MTO Telecom Inc.
27.100.7.0/24        56096     >>UNKNOWN<<
41.73.1.0/24         37004     >>UNKNOWN<<
41.73.2.0/24         37004     >>UNKNOWN<<
41.73.10.0/24        37004     >>UNKNOWN<<
41.73.11.0/24        37004     >>UNKNOWN<<
41.73.12.0/24        37004     >>UNKNOWN<<
41.73.13.0/24        37004     >>UNKNOWN<<
41.73.14.0/24        37004     >>UNKNOWN<<

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       /9:13      /10:30      /11:91      /12:261     
/13:500     /14:982     /15:1705    /16:13031   /17:7045    /18:11746   
/19:24647   /20:35359   /21:37764   /22:54294   /23:47822   /24:271327  
/25:1091    /26:1039    /27:665     /28:15      /29:19      /30:10      
/31:1       /32:14      

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

  ASN   No of nets  Total ann.   Description
22773     2164          2928      Cox Communications Inc.
18566     2000          2045      MegaPath Corporation
 6389     1674          2896      BellSouth.net Inc.
30036     1404          1555      Mediacom Communications Corp
 6147     1314          1739      Telefonica del Peru S.A.A.
 7029     1158          1916      Windstream Communications Inc
 6983     1150          1444      ITC^Deltacom
11492     1124          1173      CABLE ONE, INC.
34984     1064          1743      TELLCOM ILETISIM HIZMETLERI A
10620     1036          2961      Telmex Colombia S.A.

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

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

   1:1328      2:663       3:3         4:16        5:1081      6:21     
   8:732      12:1862     13:4        14:1110     15:15       16:2      
  17:39       18:21       20:50       23:904      24:1799     27:1777   
  31:1408     32:41       33:2        34:5        36:139      37:1846   
  38:967      39:12       40:220      41:2535     42:270      43:228    
  44:16       45:63       46:2144     47:24       49:733      50:820    
  52:12       54:49       55:5        56:4        57:32       58:1217   
  59:660      60:425      61:1688     62:1235     63:1836     64:4362   
  65:2292     66:4200     67:2030     68:1042     69:3252     70:864    
  71:478      72:2046     74:2575     75:370      76:420      77:1612   
  78:798      79:715      80:1324     81:1201     82:764      83:780    
  84:766      85:1324     86:441      87:1149     88:461      89:1793   
  90:138      91:5692     92:766      93:1782     94:2022     95:1591   
  96:421      97:344      98:1159     99:49      100:67      101:706    
 103:5469    104:207     105:37      106:179     107:602     108:566    
 109:1975    110:1027    111:1354    112:718     113:852     114:780    
 115:1186    116:1104    117:988     118:1546    119:1425    120:419    
 121:970     122:2167    123:1606    124:1427    125:1571    128:600    
 129:348     130:366     131:718     132:423     133:165     134:319    
 135:75      136:303     137:288     138:384     139:203     140:228    
 141:401     142:575     143:426     144:505     145:112     146:607    
 147:489     148:975     149:402     150:452     151:595     152:458    
 153:241     154:338     155:526     156:358     157:328     158:280    
 159:939     160:328     161:587     162:1729    163:340     164:702    
 165:645     166:361     167:673     168:1124    169:122     170:1394   
 171:183     172:63      173:1603    174:700     175:624     176:1475   
 177:3530    178:2090    179:774     180:1775    181:1596    182:1629   
 183:555     184:708     185:2008    186:2927    187:1669    188:2168   
 189:1473    190:7959    191:757     192:7503    193:5501    194:4049   
 195:3572    196:1442    197:682     198:5146    199:5469    200:6496   
 201:2868    202:9178    203:9011    204:4561    205:2643    206:2949   
 207:2910    208:3931    209:3733    210:3303    211:1836    212:2338   
 213:2126    214:865     215:88      216:5565    217:1688    218:617    
 219:406     220:1355    221:688     222:479     223:597    

End of report


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