Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Dec 12 18:12:13 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,
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 Dec, 2014

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

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

BGP routing table entries examined:                              523481
    Prefixes after maximum aggregation:                          201299
    Deaggregation factor:                                          2.60
    Unique aggregates announced to Internet:                     255547
Total ASes present in the Internet Routing Table:                 48830
    Prefixes per ASN:                                             10.72
Origin-only ASes present in the Internet Routing Table:           36379
Origin ASes announcing only one prefix:                           16320
Transit ASes present in the Internet Routing Table:                6187
Transit-only ASes present in the Internet Routing Table:            172
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                     100
    Max AS path prepend of ASN ( 55644)                              93
Prefixes from unregistered ASNs in the Routing Table:              1631
    Unregistered ASNs in the Routing Table:                         430
Number of 32-bit ASNs allocated by the RIRs:                       8142
Number of 32-bit ASNs visible in the Routing Table:                6264
Prefixes from 32-bit ASNs in the Routing Table:                   22488
Number of bogon 32-bit ASNs visible in the Routing Table:             7
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            406
Number of addresses announced to Internet:                   2715334500
    Equivalent to 161 /8s, 216 /16s and 183 /24s
    Percentage of available address space announced:               73.3
    Percentage of allocated address space announced:               73.3
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               97.0
Total number of prefixes smaller than registry allocations:      177479

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

Prefixes being announced by APNIC Region ASes:                   128957
    Total APNIC prefixes after maximum aggregation:               37484
    APNIC Deaggregation factor:                                    3.44
Prefixes being announced from the APNIC address blocks:          133610
    Unique aggregates announced from the APNIC address blocks:    54387
APNIC Region origin ASes present in the Internet Routing Table:    5009
    APNIC Prefixes per ASN:                                       26.67
APNIC Region origin ASes announcing only one prefix:               1216
APNIC Region transit ASes present in the Internet Routing Table:    853
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                        100
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1211
Number of APNIC addresses announced to Internet:              738767936
    Equivalent to 44 /8s, 8 /16s and 180 /24s
    Percentage of available APNIC address space announced:         86.3

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-64098, 131072-135580
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:                    173986
    Total ARIN prefixes after maximum aggregation:                86173
    ARIN Deaggregation factor:                                     2.02
Prefixes being announced from the ARIN address blocks:           175863
    Unique aggregates announced from the ARIN address blocks:     82172
ARIN Region origin ASes present in the Internet Routing Table:    16408
    ARIN Prefixes per ASN:                                        10.72
ARIN Region origin ASes announcing only one prefix:                6075
ARIN Region transit ASes present in the Internet Routing Table:    1711
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          20
Number of ARIN region 32-bit ASNs visible in the Routing Table:     290
Number of ARIN addresses announced to Internet:              1054644192
    Equivalent to 62 /8s, 220 /16s and 151 /24s
    Percentage of available ARIN address space announced:          55.8

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:                    126399
    Total RIPE prefixes after maximum aggregation:                63747
    RIPE Deaggregation factor:                                     1.98
Prefixes being announced from the RIPE address blocks:           132300
    Unique aggregates announced from the RIPE address blocks:     82743
RIPE Region origin ASes present in the Internet Routing Table:    17824
    RIPE Prefixes per ASN:                                         7.42
RIPE Region origin ASes announcing only one prefix:                8183
RIPE Region transit ASes present in the Internet Routing Table:    2919
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    3260
Number of RIPE addresses announced to Internet:               692278148
    Equivalent to 41 /8s, 67 /16s and 83 /24s
    Percentage of available RIPE address space announced:         100.6

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:                   59085
    Total LACNIC prefixes after maximum aggregation:              10879
    LACNIC Deaggregation factor:                                   5.43
Prefixes being announced from the LACNIC address blocks:          67965
    Unique aggregates announced from the LACNIC address blocks:   30977
LACNIC Region origin ASes present in the Internet Routing Table:   2388
    LACNIC Prefixes per ASN:                                      28.46
LACNIC Region origin ASes announcing only one prefix:               638
LACNIC Region transit ASes present in the Internet Routing Table:   476
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        30
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1424
Number of LACNIC addresses announced to Internet:             167471296
    Equivalent to 9 /8s, 251 /16s and 104 /24s
    Percentage of available LACNIC address space announced:        99.8

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-265628 + 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:                  12432
    Total AfriNIC prefixes after maximum aggregation:              2972
    AfriNIC Deaggregation factor:                                  4.18
Prefixes being announced from the AfriNIC address blocks:         13337
    Unique aggregates announced from the AfriNIC address blocks:   4901
AfriNIC Region origin ASes present in the Internet Routing Table:   735
    AfriNIC Prefixes per ASN:                                     18.15
AfriNIC Region origin ASes announcing only one prefix:              208
AfriNIC Region transit ASes present in the Internet Routing Table:  151
Average AfriNIC Region AS path length visible:                      4.6
    Max AfriNIC Region AS path length visible:                       24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   79
Number of AfriNIC addresses announced to Internet:             60186624
    Equivalent to 3 /8s, 150 /16s and 96 /24s
    Percentage of available AfriNIC address space announced:       59.8

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     2953      11585         929   Korea Telecom
17974     2834        904          77   PT Telekomunikasi Indonesia
 7545     2488        337         129   TPG Telecom Limited
 4755     1923        416         191   TATA Communications formerly 
 4538     1816       4190          71   China Education and Research 
 9829     1662       1323          28   National Internet Backbone
 9808     1496       6719          19   Guangdong Mobile Communicatio
 4808     1443       2209         426   CNCGROUP IP network China169 
 9583     1366        112         564   Sify Limited
 9498     1294        336          97   BHARTI Airtel Ltd.

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

ARIN Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
22773     2922       2956         141   Cox Communications Inc.
 6389     2892       3688          51   BellSouth.net Inc.
 3356     2552      10684         471   Level 3 Communications, Inc.
18566     2042        379         183   MegaPath Corporation
20115     1838       1817         452   Charter Communications
 4323     1639       1054         410   tw telecom holdings, inc.
 6983     1625        867         245   EarthLink, Inc.
30036     1505        311         591   Mediacom Communications Corp
  701     1418      11265         698   MCI Communications Services, 
22561     1317        411         244   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     1907        298         358   TELLCOM ILETISIM HIZMETLERI A
20940     1530        598        1133   Akamai International B.V.
 8402     1420        544          15   OJSC "Vimpelcom"
31148     1045         45          21   Freenet Ltd.
13188      997         95          60   TOV "Bank-Inform"
 8551      898        373          43   Bezeq International-Ltd
 6849      833        356          25   JSC "Ukrtelecom"
 9198      831        349          26   JSC Kazakhtelecom
 6830      821       2340         442   Liberty Global Operations B.V
12479      800        789          95   France Telecom Espana SA

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

LACNIC Region per AS prefix count summary
-----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
10620     3059        496         224   Telmex Colombia S.A.
28573     2295       2119         112   NET Serviços de Comunicação S
 6147     1807        374          30   Telefonica del Peru S.A.A.
 7303     1777       1172         241   Telecom Argentina S.A.
 8151     1485       3034         428   Uninet S.A. de C.V.
 6503     1229        433          58   Axtel, S.A.B. de C.V.
 7738      999       1882          41   Telemar Norte Leste S.A.
26615      918       2325          35   Tim Celular S.A.
 3816      909        394         147   COLOMBIA TELECOMUNICACIONES S
27947      886        129          50   Telconet 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
 8452     1429        958          13   TE-AS
24863      951        284          26   Link Egypt (Link.NET)
36903      456        230          95   Office National des Postes et
36992      382        824          29   ETISALAT MISR
24835      308        144           9   Vodafone Data
37492      282        133          65   Orange Tunisie
 3741      250        921         213   Internet Solutions
29571      235         21          12   Cote d'Ivoire Telecom
37457      194        160           4   Telkom SA Ltd.
36947      187        807          13   Telecom Algeria

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
10620     3059        496         224   Telmex Colombia S.A.
 4766     2953      11585         929   Korea Telecom
22773     2922       2956         141   Cox Communications Inc.
 6389     2892       3688          51   BellSouth.net Inc.
17974     2834        904          77   PT Telekomunikasi Indonesia
 3356     2552      10684         471   Level 3 Communications, Inc.
 7545     2488        337         129   TPG Telecom Limited
28573     2295       2119         112   NET Serviços de Comunicação S
18566     2042        379         183   MegaPath Corporation
 4755     1923        416         191   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
 6389      2892        2841      BellSouth.net Inc.
22773      2922        2781      Cox Communications Inc.
17974      2834        2757      PT Telekomunikasi Indonesia
 7545      2488        2359      TPG Telecom Limited
28573      2295        2183      NET Serviços de Comunicação S
 3356      2552        2081      Level 3 Communications, Inc.
 4766      2953        2024      Korea Telecom
18566      2042        1859      MegaPath Corporation
 6147      1807        1777      Telefonica del Peru S.A.A.
 4538      1816        1745      China Education and Research 

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         3356       Level 3 Communicatio
46467   UNALLOCATED  8.19.192.0/24        46887       Lightower Fiber Netw
18985   UNALLOCATED  8.21.68.0/22          3356       Level 3 Communicatio
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
27205   UNALLOCATED  8.38.16.0/21          6461       Abovenet Communicati
15347   UNALLOCATED  8.224.147.0/24       12064       Cox Communications I

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

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

Network            Origin AS  Description
5.100.241.0/24       23456     32bit Transition AS
23.252.224.0/20      62502     >>UNKNOWN<<
23.252.224.0/21      62502     >>UNKNOWN<<
23.252.232.0/21      62502     >>UNKNOWN<<
24.231.96.0/24       21548     MTO Telecom Inc.
27.100.7.0/24        56096     >>UNKNOWN<<
27.122.56.0/22       55799     Hostemo Technology Sdn Bhd
31.217.248.0/21      44902     COVAGE NETWORKS SASU
37.16.88.0/23        57652     >>UNKNOWN<<
41.73.1.0/24         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       /9:12      /10:31      /11:92      /12:263     
/13:501     /14:999     /15:1728    /16:13061   /17:7168    /18:11975   
/19:24950   /20:35533   /21:38034   /22:56252   /23:49150   /24:280755  
/25:1107    /26:1091    /27:708     /28:16      /29:19      /30:11      
/31:0       /32:9       

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

  ASN   No of nets  Total ann.   Description
22773     2137          2922      Cox Communications Inc.
18566     1997          2042      MegaPath Corporation
 6389     1672          2892      BellSouth.net Inc.
 6147     1352          1807      Telefonica del Peru S.A.A.
30036     1352          1505      Mediacom Communications Corp
 6983     1312          1625      EarthLink, Inc.
34984     1214          1907      TELLCOM ILETISIM HIZMETLERI A
11492     1126          1183      CABLE ONE, INC.
10620     1086          3059      Telmex Colombia S.A.
 8402     1085          1420      OJSC "Vimpelcom"

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

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

   1:1394      2:676       3:3         4:95        5:1222      6:21     
   8:1402     12:1842     13:5        14:1208     15:17       16:2      
  17:42       18:21       20:51       23:1056     24:1662     27:1805   
  31:1420     32:39       33:2        34:5        36:150      37:1849   
  38:977      39:13       40:224      41:3035     42:281      43:774    
  44:20       45:83       46:2105     47:31       49:771      50:788    
  52:12       54:59       55:6        56:6        57:31       58:1157   
  59:662      60:448      61:1746     62:1308     63:1871     64:4411   
  65:2281     66:4092     67:2024     68:1046     69:3262     70:918    
  71:429      72:1974     74:2608     75:323      76:408      77:1348   
  78:1026     79:782      80:1321     81:1286     82:811      83:675    
  84:670      85:1303     86:430      87:1192     88:512      89:1814   
  90:139      91:5842     92:800      93:1658     94:1977     95:1353   
  96:422      97:338      98:1048     99:48      100:69      101:787    
 103:6293    104:822     105:186     106:194     107:873     108:612    
 109:2011    110:1060    111:1448    112:736     113:896     114:798    
 115:1236    116:1275    117:1013    118:1667    119:1370    120:420    
 121:990     122:2203    123:1703    124:1454    125:1568    128:654    
 129:384     130:384     131:1017    132:437     133:165     134:333    
 135:85      136:331     137:297     138:388     139:170     140:228    
 141:423     142:587     143:441     144:510     145:112     146:701    
 147:563     148:1029    149:407     150:534     151:587     152:474    
 153:248     154:294     155:654     156:389     157:333     158:252    
 159:920     160:366     161:615     162:1826    163:379     164:640    
 165:667     166:307     167:735     168:1161    169:130     170:1421   
 171:222     172:51      173:1580    174:710     175:592     176:1550   
 177:3666    178:2089    179:801     180:1824    181:1700    182:1705   
 183:530     184:723     185:2490    186:2954    187:1679    188:2000   
 189:1533    190:7929    191:855     192:7893    193:5565    194:4065   
 195:3631    196:1692    197:862     198:5398    199:5493    200:6538   
 201:2981    202:9461    203:8992    204:4689    205:2704    206:2995   
 207:2978    208:3914    209:3858    210:3484    211:1863    212:2495   
 213:2244    214:862     215:71      216:5571    217:1748    218:652    
 219:466     220:1303    221:774     222:457     223:643    

End of report



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