Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jan 23 18:12:37 UTC 2015


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 24 Jan, 2015

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

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

BGP routing table entries examined:                              528233
    Prefixes after maximum aggregation (per Origin AS):          202606
    Deaggregation factor:                                          2.61
    Unique aggregates announced (without unneeded subnets):      257973
Total ASes present in the Internet Routing Table:                 49174
    Prefixes per ASN:                                             10.74
Origin-only ASes present in the Internet Routing Table:           36416
Origin ASes announcing only one prefix:                           16306
Transit ASes present in the Internet Routing Table:                6219
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:                                     107
    Max AS path prepend of ASN ( 55644)                             100
Prefixes from unregistered ASNs in the Routing Table:              1596
    Unregistered ASNs in the Routing Table:                         414
Number of 32-bit ASNs allocated by the RIRs:                       8418
Number of 32-bit ASNs visible in the Routing Table:                6539
Prefixes from 32-bit ASNs in the Routing Table:                   23497
Number of bogon 32-bit ASNs visible in the Routing Table:            12
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            380
Number of addresses announced to Internet:                   2724441252
    Equivalent to 162 /8s, 99 /16s and 172 /24s
    Percentage of available address space announced:               73.6
    Percentage of allocated address space announced:               73.6
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               97.1
Total number of prefixes smaller than registry allocations:      178139

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

Prefixes being announced by APNIC Region ASes:                   130644
    Total APNIC prefixes after maximum aggregation:               38088
    APNIC Deaggregation factor:                                    3.43
Prefixes being announced from the APNIC address blocks:          135622
    Unique aggregates announced from the APNIC address blocks:    55421
APNIC Region origin ASes present in the Internet Routing Table:    5014
    APNIC Prefixes per ASN:                                       27.05
APNIC Region origin ASes announcing only one prefix:               1225
APNIC Region transit ASes present in the Internet Routing Table:    871
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                        107
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1259
Number of APNIC addresses announced to Internet:              741911680
    Equivalent to 44 /8s, 56 /16s and 172 /24s
    Percentage of available APNIC address space announced:         86.7

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:                    175163
    Total ARIN prefixes after maximum aggregation:                86557
    ARIN Deaggregation factor:                                     2.02
Prefixes being announced from the ARIN address blocks:           177092
    Unique aggregates announced from the ARIN address blocks:     82879
ARIN Region origin ASes present in the Internet Routing Table:    16450
    ARIN Prefixes per ASN:                                        10.77
ARIN Region origin ASes announcing only one prefix:                6088
ARIN Region transit ASes present in the Internet Routing Table:    1718
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          19
Number of ARIN region 32-bit ASNs visible in the Routing Table:     328
Number of ARIN addresses announced to Internet:              1060431136
    Equivalent to 63 /8s, 52 /16s and 229 /24s
    Percentage of available ARIN address space announced:          56.1

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:                    127767
    Total RIPE prefixes after maximum aggregation:                64061
    RIPE Deaggregation factor:                                     1.99
Prefixes being announced from the RIPE address blocks:           133881
    Unique aggregates announced from the RIPE address blocks:     82988
RIPE Region origin ASes present in the Internet Routing Table:    17836
    RIPE Prefixes per ASN:                                         7.51
RIPE Region origin ASes announcing only one prefix:                8140
RIPE Region transit ASes present in the Internet Routing Table:    2930
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    3377
Number of RIPE addresses announced to Internet:               692903044
    Equivalent to 41 /8s, 76 /16s and 220 /24s
    Percentage of available RIPE address space announced:         100.7

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:                   58578
    Total LACNIC prefixes after maximum aggregation:              10891
    LACNIC Deaggregation factor:                                   5.38
Prefixes being announced from the LACNIC address blocks:          67832
    Unique aggregates announced from the LACNIC address blocks:   31310
LACNIC Region origin ASes present in the Internet Routing Table:   2394
    LACNIC Prefixes per ASN:                                      28.33
LACNIC Region origin ASes announcing only one prefix:               645
LACNIC Region transit ASes present in the Internet Routing Table:   471
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1488
Number of LACNIC addresses announced to Internet:             167735168
    Equivalent to 9 /8s, 255 /16s and 111 /24s
    Percentage of available LACNIC address space announced:       100.0

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:                  12471
    Total AfriNIC prefixes after maximum aggregation:              2965
    AfriNIC Deaggregation factor:                                  4.21
Prefixes being announced from the AfriNIC address blocks:         13426
    Unique aggregates announced from the AfriNIC address blocks:   5037
AfriNIC Region origin ASes present in the Internet Routing Table:   739
    AfriNIC Prefixes per ASN:                                     18.17
AfriNIC Region origin ASes announcing only one prefix:              208
AfriNIC Region transit ASes present in the Internet Routing Table:  154
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   87
Number of AfriNIC addresses announced to Internet:             61018368
    Equivalent to 3 /8s, 163 /16s and 17 /24s
    Percentage of available AfriNIC address space announced:       60.6

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     2887      11556         915   Korea Telecom
17974     2846        905          78   PT Telekomunikasi Indonesia
 7545     2506        336         128   TPG Telecom Limited
 4755     1938        418         194   TATA Communications formerly 
 4538     1758       4190          71   China Education and Research 
 9829     1682       1324          32   National Internet Backbone
 9808     1524       6719          19   Guangdong Mobile Communicatio
 4808     1458       2214         436   CNCGROUP IP network China169 
 9583     1393        115         572   Sify Limited
 9498     1298        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     2927       2955         141   Cox Communications Inc.
 6389     2891       3688          51   BellSouth.net Inc.
 3356     2580      10688         484   Level 3 Communications, Inc.
18566     2043        379         183   MegaPath Corporation
20115     1855       1826         453   Charter Communications
 6983     1627        867         245   EarthLink, Inc.
 4323     1626       1037         408   tw telecom holdings, inc.
30036     1528        317         532   Mediacom Communications Corp
  701     1403      11274         687   MCI Communications Services, 
22561     1339        411         241   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     1944        300         358   TELLCOM ILETISIM HIZMETLERI A
20940     1551        605        1152   Akamai International B.V.
 8402     1429        544          15   OJSC "Vimpelcom"
 6849     1234        356          25   JSC "Ukrtelecom"
31148     1045         45          21   Freenet Ltd.
13188     1038         97          55   TOV "Bank-Inform"
 8551      941        373          48   Bezeq International-Ltd
 9198      856        349          25   JSC Kazakhtelecom
12479      838        793          84   France Telecom Espana SA
 6830      825       2340         445   Liberty Global Operations B.V

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     3068        497         225   Telmex Colombia S.A.
28573     2331       2134         114   NET Serviços de Comunicação S
 6147     1822        374          30   Telefonica del Peru S.A.A.
 7303     1774       1172         237   Telecom Argentina S.A.
 8151     1491       3084         431   Uninet S.A. de C.V.
 6503     1221        417          56   Axtel, S.A.B. de C.V.
 7738     1000       1882          42   Telemar Norte Leste S.A.
26615      912       2325          35   Tim Celular S.A.
 3816      902        395         150   COLOMBIA TELECOMUNICACIONES S
18881      857       1036          22   Global Village Telecom

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     1507        958          13   TE-AS
24863      955        284          26   Link Egypt (Link.NET)
36903      479        241          90   Office National des Postes et
36992      373        845          30   ETISALAT MISR
37492      327        144          65   Orange Tunisie
24835      295        144           9   Vodafone Data
 3741      249        921         213   Internet Solutions
29571      233         21          12   Cote d'Ivoire Telecom
36947      194        807          13   Telecom Algeria
15706      176         32           6   Sudatel (Sudan Telecom Co. Lt

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     3068        497         225   Telmex Colombia S.A.
22773     2927       2955         141   Cox Communications Inc.
 6389     2891       3688          51   BellSouth.net Inc.
 4766     2887      11556         915   Korea Telecom
17974     2846        905          78   PT Telekomunikasi Indonesia
 3356     2580      10688         484   Level 3 Communications, Inc.
 7545     2506        336         128   TPG Telecom Limited
28573     2331       2134         114   NET Serviços de Comunicação S
18566     2043        379         183   MegaPath Corporation
34984     1944        300         358   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      2891        2840      BellSouth.net Inc.
22773      2927        2786      Cox Communications Inc.
17974      2846        2768      PT Telekomunikasi Indonesia
 7545      2506        2378      TPG Telecom Limited
28573      2331        2217      NET Serviços de Comunicação S
 3356      2580        2096      Level 3 Communications, Inc.
 4766      2887        1972      Korea Telecom
18566      2043        1860      MegaPath Corporation
 6147      1822        1792      Telefonica del Peru S.A.A.
 4755      1938        1744      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         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
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
32805   UNALLOCATED  12.1.225.0/24         7018       AT&T Services, Inc.

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
23.92.160.0/24       14013     EPSON America (Factory Automa
23.92.161.0/24       14013     EPSON America (Factory Automa
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<<
31.217.248.0/21      44902     COVAGE NETWORKS SASU
37.16.88.0/23        57652     >>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      /10:32      /11:92      /12:265     
/13:502     /14:996     /15:1721    /16:13048   /17:7192    /18:12051   
/19:24915   /20:35833   /21:38375   /22:57203   /23:50117   /24:282961  
/25:1139    /26:1055    /27:656     /28:17      /29:14      /30:10      
/31:0       /32:11      

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

  ASN   No of nets  Total ann.   Description
22773     2141          2927      Cox Communications Inc.
18566     1998          2043      MegaPath Corporation
 6389     1671          2891      BellSouth.net Inc.
30036     1373          1528      Mediacom Communications Corp
 6147     1366          1822      Telefonica del Peru S.A.A.
 6983     1314          1627      EarthLink, Inc.
34984     1248          1944      TELLCOM ILETISIM HIZMETLERI A
11492     1128          1187      CABLE ONE, INC.
 8402     1097          1429      OJSC "Vimpelcom"
10620     1094          3068      Telmex Colombia S.A.

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

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

   1:1462      2:672       3:1         4:95        5:1216      6:21     
   8:1401     11:1        12:1845     13:4        14:1255     15:17     
  16:2        17:43       18:21       20:50       23:1094     24:1682   
  27:1844     31:1473     32:39       33:2        34:5        35:2      
  36:133      37:1892     38:970      39:13       40:230      41:3027   
  42:261      43:934      44:23       45:95       46:2118     47:34     
  49:783      50:789      52:12       54:66       55:6        56:8      
  57:32       58:1193     59:681      60:454      61:1759     62:1303   
  63:1905     64:4407     65:2268     66:4085     67:2018     68:1040   
  69:3269     70:904      71:431      72:1971     74:2619     75:314    
  76:414      77:1453     78:1281     79:790      80:1311     81:1300   
  82:786      83:668      84:673      85:1303     86:389      87:1164   
  88:517      89:1781     90:139      91:5903     92:799      93:1707   
  94:1931     95:1329     96:413      97:335      98:1038     99:46     
 100:75      101:800     103:6565    104:1123    105:56      106:200    
 107:888     108:608     109:2018    110:1066    111:1463    112:746    
 113:980     114:819     115:1251    116:1310    117:1015    118:1698   
 119:1396    120:447     121:1013    122:2179    123:1714    124:1492   
 125:1518    128:642     129:376     130:382     131:1077    132:453    
 133:167     134:389     135:88      136:333     137:297     138:408    
 139:173     140:221     141:412     142:621     143:450     144:521    
 145:112     146:712     147:572     148:1063    149:414     150:555    
 151:742     152:482     153:246     154:302     155:708     156:397    
 157:328     158:264     159:956     160:367     161:630     162:1873   
 163:382     164:651     165:665     166:320     167:701     168:1001   
 169:140     170:1431    171:223     172:47      173:1587    174:706    
 175:612     176:1469    177:3613    178:2092    179:848     180:1860   
 181:1622    182:1696    183:575     184:734     185:2701    186:2678   
 187:1739    188:2020    189:1543    190:7907    191:835     192:8052   
 193:5555    194:4053    195:3631    196:1700    197:874     198:5450   
 199:5508    200:6480    201:2911    202:9506    203:9085    204:4656   
 205:2714    206:3006    207:2969    208:3939    209:3865    210:3494   
 211:1836    212:2484    213:2267    214:838     215:69      216:5528   
 217:1800    218:668     219:463     220:1322    221:795     222:464    
 223:644    

End of report



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