Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Nov 21 18:11:37 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 22 Nov, 2014

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

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

BGP routing table entries examined:                              517859
    Prefixes after maximum aggregation:                          200304
    Deaggregation factor:                                          2.59
    Unique aggregates announced to Internet:                     254592
Total ASes present in the Internet Routing Table:                 48629
    Prefixes per ASN:                                             10.65
Origin-only ASes present in the Internet Routing Table:           36296
Origin ASes announcing only one prefix:                           16305
Transit ASes present in the Internet Routing Table:                6210
Transit-only ASes present in the Internet Routing Table:            176
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      78
    Max AS path prepend of ASN ( 55644)                              71
Prefixes from unregistered ASNs in the Routing Table:              1631
    Unregistered ASNs in the Routing Table:                         439
Number of 32-bit ASNs allocated by the RIRs:                       7978
Number of 32-bit ASNs visible in the Routing Table:                6123
Prefixes from 32-bit ASNs in the Routing Table:                   21952
Number of bogon 32-bit ASNs visible in the Routing Table:             6
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            391
Number of addresses announced to Internet:                   2712292420
    Equivalent to 161 /8s, 170 /16s and 76 /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:               96.9
Total number of prefixes smaller than registry allocations:      176514

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

Prefixes being announced by APNIC Region ASes:                   127765
    Total APNIC prefixes after maximum aggregation:               37043
    APNIC Deaggregation factor:                                    3.45
Prefixes being announced from the APNIC address blocks:          132174
    Unique aggregates announced from the APNIC address blocks:    53894
APNIC Region origin ASes present in the Internet Routing Table:    4990
    APNIC Prefixes per ASN:                                       26.49
APNIC Region origin ASes announcing only one prefix:               1200
APNIC Region transit ASes present in the Internet Routing Table:    869
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         78
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1178
Number of APNIC addresses announced to Internet:              737083776
    Equivalent to 43 /8s, 239 /16s and 1 /24s
    Percentage of available APNIC address space announced:         86.1

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:                    171222
    Total ARIN prefixes after maximum aggregation:                85507
    ARIN Deaggregation factor:                                     2.00
Prefixes being announced from the ARIN address blocks:           173175
    Unique aggregates announced from the ARIN address blocks:     81727
ARIN Region origin ASes present in the Internet Routing Table:    16386
    ARIN Prefixes per ASN:                                        10.57
ARIN Region origin ASes announcing only one prefix:                6073
ARIN Region transit ASes present in the Internet Routing Table:    1702
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:     264
Number of ARIN addresses announced to Internet:              1053889472
    Equivalent to 62 /8s, 209 /16s and 19 /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:                    126263
    Total RIPE prefixes after maximum aggregation:                63842
    RIPE Deaggregation factor:                                     1.98
Prefixes being announced from the RIPE address blocks:           132022
    Unique aggregates announced from the RIPE address blocks:     83090
RIPE Region origin ASes present in the Internet Routing Table:    17812
    RIPE Prefixes per ASN:                                         7.41
RIPE Region origin ASes announcing only one prefix:                8177
RIPE Region transit ASes present in the Internet Routing Table:    2936
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:    3221
Number of RIPE addresses announced to Internet:               691982468
    Equivalent to 41 /8s, 62 /16s and 208 /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:                   58181
    Total LACNIC prefixes after maximum aggregation:              10865
    LACNIC Deaggregation factor:                                   5.35
Prefixes being announced from the LACNIC address blocks:          66917
    Unique aggregates announced from the LACNIC address blocks:   30719
LACNIC Region origin ASes present in the Internet Routing Table:   2378
    LACNIC Prefixes per ASN:                                      28.14
LACNIC Region origin ASes announcing only one prefix:               648
LACNIC Region transit ASes present in the Internet Routing Table:   474
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        30
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1391
Number of LACNIC addresses announced to Internet:             167915392
    Equivalent to 10 /8s, 2 /16s and 47 /24s
    Percentage of available LACNIC address space announced:       100.1

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:                  12364
    Total AfriNIC prefixes after maximum aggregation:              3002
    AfriNIC Deaggregation factor:                                  4.12
Prefixes being announced from the AfriNIC address blocks:         13180
    Unique aggregates announced from the AfriNIC address blocks:   4810
AfriNIC Region origin ASes present in the Internet Routing Table:   733
    AfriNIC Prefixes per ASN:                                     17.98
AfriNIC Region origin ASes announcing only one prefix:              207
AfriNIC Region transit ASes present in the Internet Routing Table:  148
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:   69
Number of AfriNIC addresses announced to Internet:             60038400
    Equivalent to 3 /8s, 148 /16s and 29 /24s
    Percentage of available AfriNIC address space announced:       59.6

AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4766     2959      11585         932   Korea Telecom
17974     2846        904          77   PT Telekomunikasi Indonesia
 7545     2460        336         127   TPG Telecom Limited
 4755     1929        416         191   TATA Communications formerly 
 9829     1670       1322          37   National Internet Backbone
 4538     1550       4190          71   China Education and Research 
 9808     1485       6655          16   Guangdong Mobile Communicatio
 4808     1425       2213         427   CNCGROUP IP network China169 
 9583     1363        112         562   Sify Limited
 9498     1316        334          94   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
 6389     2894       3688          51   BellSouth.net Inc.
22773     2850       2956         144   Cox Communications Inc.
18566     2044        379         183   MegaPath Corporation
20115     1822       1797         479   Charter Communications
 4323     1642       1053         413   tw telecom holdings, inc.
 6983     1625        867         251   EarthLink, Inc.
30036     1496        311         605   Mediacom Communications Corp
  701     1427      11265         707   MCI Communications Services, 
22561     1311        411         244   CenturyTel Internet Holdings,
11492     1214        212         534   CABLE ONE, INC.

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     1896        298         356   TELLCOM ILETISIM HIZMETLERI A
20940     1504        585        1111   Akamai International B.V.
 8402     1380        544          15   OJSC "Vimpelcom"
31148     1045         45          21   Freenet Ltd.
13188     1025        100          35   TOV "Bank-Inform"
 8551      899        373          44   Bezeq International-Ltd
 6849      834        356          26   JSC "Ukrtelecom"
 9198      807        346          32   JSC Kazakhtelecom
 6830      804       2339         439   Liberty Global Operations B.V
12479      776        788          97   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     3035        492         242   Telmex Colombia S.A.
28573     2377       2260         110   NET Serviços de Comunicação S
 7303     1766       1171         241   Telecom Argentina S.A.
 8151     1474       3019         429   Uninet S.A. de C.V.
 6147     1299        374          30   Telefonica del Peru S.A.A.
 6503     1228        433          58   Axtel, S.A.B. de C.V.
 7738      999       1882          41   Telemar Norte Leste S.A.
26615      914       2325          35   Tim Celular S.A.
 3816      906        394         146   COLOMBIA TELECOMUNICACIONES S
27947      887        130          51   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     1407        958          13   TE-AS
24863      957        280          26   Link Egypt (Link.NET)
36903      388        196         125   Office National des Postes et
36992      359        824          29   ETISALAT MISR
24835      308        144           9   Vodafone Data
37492      289        125          60   Orange Tunisie
 3741      249        920         212   Internet Solutions
29571      245         22          17   Cote d'Ivoire Telecom
37054      238         19           6   Data Telecom Service
 6713      195        709          34   Office National des Postes et

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     3035        492         242   Telmex Colombia S.A.
 4766     2959      11585         932   Korea Telecom
 6389     2894       3688          51   BellSouth.net Inc.
22773     2850       2956         144   Cox Communications Inc.
17974     2846        904          77   PT Telekomunikasi Indonesia
 7545     2460        336         127   TPG Telecom Limited
28573     2377       2260         110   NET Serviços de Comunicação S
18566     2044        379         183   MegaPath Corporation
 4755     1929        416         191   TATA Communications formerly 
34984     1896        298         356   TELLCOM ILETISIM HIZMETLERI A

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      2894        2843      BellSouth.net Inc.
17974      2846        2769      PT Telekomunikasi Indonesia
22773      2850        2706      Cox Communications Inc.
 7545      2460        2333      TPG Telecom Limited
28573      2377        2267      NET Serviços de Comunicação S
 4766      2959        2027      Korea Telecom
18566      2044        1861      MegaPath Corporation
 4755      1929        1738      TATA Communications formerly 
 9829      1670        1633      National Internet Backbone
34984      1896        1540      TELLCOM ILETISIM HIZMETLERI A

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
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
33628   UNALLOCATED  12.0.239.0/24         1239       Sprint

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     Xnet Media LLC
23.252.224.0/21      62502     Xnet Media LLC
23.252.232.0/21      62502     Xnet Media LLC
24.231.96.0/24       21548     MTO Telecom Inc.
27.100.7.0/24        56096     >>UNKNOWN<<
31.217.248.0/21      44902     COVAGE NETWORKS SASU
37.16.88.0/23        57652     >>UNKNOWN<<
41.73.1.0/24         37004     >>UNKNOWN<<
41.73.2.0/24         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      /11:90      /12:262     
/13:500     /14:996     /15:1720    /16:13030   /17:7135    /18:11916   
/19:24761   /20:35350   /21:37488   /22:55560   /23:48330   /24:277707  
/25:1106    /26:1087    /27:705     /28:15      /29:19      /30:11      
/31:0       /32:12      

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

  ASN   No of nets  Total ann.   Description
22773     2063          2850      Cox Communications Inc.
18566     1999          2044      MegaPath Corporation
 6389     1674          2894      BellSouth.net Inc.
30036     1342          1496      Mediacom Communications Corp
 6983     1307          1625      EarthLink, Inc.
34984     1203          1896      TELLCOM ILETISIM HIZMETLERI A
11492     1162          1214      CABLE ONE, INC.
10620     1074          3035      Telmex Colombia S.A.
 8402     1045          1380      OJSC "Vimpelcom"
22561     1003          1311      CenturyTel Internet Holdings,

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

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

   1:1358      2:679       3:3         4:16        5:1207      6:22     
   8:769      12:1848     13:4        14:1195     15:17       16:2      
  17:42       18:21       20:51       23:970      24:1669     27:1805   
  31:1386     32:45       33:2        34:5        36:155      37:1838   
  38:975      39:16       40:225      41:2997     42:274      43:664    
  44:18       45:80       46:2116     47:30       49:758      50:794    
  52:12       54:60       55:6        56:6        57:31       58:1155   
  59:661      60:445      61:1703     62:1311     63:1846     64:4406   
  65:2280     66:4110     67:2006     68:1049     69:3257     70:885    
  71:433      72:1983     74:2608     75:323      76:407      77:1622   
  78:958      79:780      80:1324     81:1277     82:820      83:670    
  84:670      85:1365     86:425      87:1184     88:500      89:1813   
  90:140      91:5884     92:804      93:1669     94:1948     95:1311   
  96:422      97:341      98:1034     99:48      100:66      101:746    
 103:6117    104:595     105:163     106:189     107:761     108:609    
 109:1991    110:1057    111:1443    112:736     113:915     114:795    
 115:1218    116:1233    117:1004    118:1599    119:1367    120:440    
 121:987     122:2211    123:1701    124:1461    125:1545    128:656    
 129:390     130:381     131:965     132:429     133:164     134:325    
 135:82      136:327     137:297     138:388     139:162     140:225    
 141:422     142:603     143:444     144:511     145:111     146:696    
 147:563     148:1057    149:397     150:518     151:643     152:482    
 153:244     154:411     155:631     156:379     157:331     158:279    
 159:926     160:335     161:621     162:1791    163:373     164:640    
 165:672     166:299     167:699     168:1132    169:130     170:1425   
 171:215     172:60      173:1583    174:711     175:582     176:1561   
 177:3704    178:2112    179:774     180:1818    181:1559    182:1661   
 183:568     184:706     185:2381    186:2912    187:1672    188:2000   
 189:1529    190:7667    191:802     192:7802    193:5567    194:4058   
 195:3612    196:1630    197:833     198:5328    199:5472    200:6496   
 201:2872    202:9401    203:8996    204:4679    205:2677    206:2994   
 207:2950    208:3922    209:3801    210:3468    211:1847    212:2467   
 213:2187    214:855     215:87      216:5632    217:1723    218:649    
 219:398     220:1301    221:773     222:438     223:662    

End of report


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