Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Feb 26 18:11:57 UTC 2016


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,
SAFNOG, PaNOG, SdNOG, BJNOG, CaribNOG and the RIPE Routing WG.

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 27 Feb, 2016

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

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

BGP routing table entries examined:                              585422
    Prefixes after maximum aggregation (per Origin AS):          215201
    Deaggregation factor:                                          2.72
    Unique aggregates announced (without unneeded subnets):      285164
Total ASes present in the Internet Routing Table:                 52903
    Prefixes per ASN:                                             11.07
Origin-only ASes present in the Internet Routing Table:           36594
Origin ASes announcing only one prefix:                           15805
Transit ASes present in the Internet Routing Table:                6406
Transit-only ASes present in the Internet Routing Table:            165
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      39
    Max AS path prepend of ASN ( 40285)                              34
Prefixes from unregistered ASNs in the Routing Table:              1127
    Unregistered ASNs in the Routing Table:                         397
Number of 32-bit ASNs allocated by the RIRs:                      12856
Number of 32-bit ASNs visible in the Routing Table:                9903
Prefixes from 32-bit ASNs in the Routing Table:                   38748
Number of bogon 32-bit ASNs visible in the Routing Table:            16
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            400
Number of addresses announced to Internet:                   2805844804
    Equivalent to 167 /8s, 61 /16s and 203 /24s
    Percentage of available address space announced:               75.8
    Percentage of allocated address space announced:               75.8
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               98.0
Total number of prefixes smaller than registry allocations:      192303

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

Prefixes being announced by APNIC Region ASes:                   150016
    Total APNIC prefixes after maximum aggregation:               41513
    APNIC Deaggregation factor:                                    3.61
Prefixes being announced from the APNIC address blocks:          159948
    Unique aggregates announced from the APNIC address blocks:    64754
APNIC Region origin ASes present in the Internet Routing Table:    5142
    APNIC Prefixes per ASN:                                       31.11
APNIC Region origin ASes announcing only one prefix:               1183
APNIC Region transit ASes present in the Internet Routing Table:    906
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         39
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1891
Number of APNIC addresses announced to Internet:              752276868
    Equivalent to 44 /8s, 214 /16s and 213 /24s
    Percentage of available APNIC address space announced:         87.9

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:                    179657
    Total ARIN prefixes after maximum aggregation:                88788
    ARIN Deaggregation factor:                                     2.02
Prefixes being announced from the ARIN address blocks:           184355
    Unique aggregates announced from the ARIN address blocks:     87428
ARIN Region origin ASes present in the Internet Routing Table:    16405
    ARIN Prefixes per ASN:                                        11.24
ARIN Region origin ASes announcing only one prefix:                5891
ARIN Region transit ASes present in the Internet Routing Table:    1697
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          37
Number of ARIN region 32-bit ASNs visible in the Routing Table:    1030
Number of ARIN addresses announced to Internet:              1102230080
    Equivalent to 65 /8s, 178 /16s and 178 /24s
    Percentage of available ARIN address space announced:          58.3

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, 64198-64296, 393216-395164
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:                    140791
    Total RIPE prefixes after maximum aggregation:                69611
    RIPE Deaggregation factor:                                     2.02
Prefixes being announced from the RIPE address blocks:           149251
    Unique aggregates announced from the RIPE address blocks:     91992
RIPE Region origin ASes present in the Internet Routing Table:    18051
    RIPE Prefixes per ASN:                                         8.27
RIPE Region origin ASes announcing only one prefix:                7954
RIPE Region transit ASes present in the Internet Routing Table:    3010
Average RIPE Region AS path length visible:                         4.7
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    4495
Number of RIPE addresses announced to Internet:               703041408
    Equivalent to 41 /8s, 231 /16s and 143 /24s
    Percentage of available RIPE address space announced:         102.2

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, 196608-204287
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:                   61389
    Total LACNIC prefixes after maximum aggregation:              12081
    LACNIC Deaggregation factor:                                   5.08
Prefixes being announced from the LACNIC address blocks:          75026
    Unique aggregates announced from the LACNIC address blocks:   35027
LACNIC Region origin ASes present in the Internet Routing Table:   2469
    LACNIC Prefixes per ASN:                                      30.39
LACNIC Region origin ASes announcing only one prefix:               586
LACNIC Region transit ASes present in the Internet Routing Table:   545
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        23
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  2300
Number of LACNIC addresses announced to Internet:             170789888
    Equivalent to 10 /8s, 46 /16s and 12 /24s
    Percentage of available LACNIC address space announced:       101.8

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:                  14666
    Total AfriNIC prefixes after maximum aggregation:              3167
    AfriNIC Deaggregation factor:                                  4.63
Prefixes being announced from the AfriNIC address blocks:         16442
    Unique aggregates announced from the AfriNIC address blocks:   5608
AfriNIC Region origin ASes present in the Internet Routing Table:   742
    AfriNIC Prefixes per ASN:                                     22.16
AfriNIC Region origin ASes announcing only one prefix:              191
AfriNIC Region transit ASes present in the Internet Routing Table:  171
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  187
Number of AfriNIC addresses announced to Internet:             77081344
    Equivalent to 4 /8s, 152 /16s and 43 /24s
    Percentage of available AfriNIC address space announced:       76.6

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
 4538     5592       4192          76   China Education and Research 
 7545     3187        351         182   TPG Telecom Limited
 4766     3117      11142        1094   Korea Telecom
17974     2908        914          96   PT Telekomunikasi Indonesia
 9829     2381       1448         428   National Internet Backbone
 4755     2084        431         237   TATA Communications formerly 
 9808     1832       8717          30   Guangdong Mobile Communicatio
45899     1698       1095         172   VNNIC
 4808     1632       2287         522   CNCGROUP IP network China169 
 9583     1520        121         561   Sify Limited

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     3291       2948         147   Cox Communications Inc.
 6389     2394       3687          42   BellSouth.net Inc.
18566     2211        394         276   MegaPath Corporation
20115     1915       1917         401   Charter Communications
30036     1713        340         267   Mediacom Communications Corp
 6983     1690        849         233   EarthLink, Inc.
 4323     1588       1023         393   tw telecom holdings, inc.
  209     1501       4482        1210   Qwest Communications Company,
  701     1396      11455         664   MCI Communications Services, 
11492     1254        233         597   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
39891     2515        135           9   SaudiNet, Saudi Telecom Compa
20940     2405        928        1719   Akamai International B.V.
34984     1947        322         415   TELLCOM ILETISIM HIZMETLERI A
 8551     1227        376          53   Bezeq International-Ltd
 6849     1179        355          21   JSC "Ukrtelecom"
 8402     1144        544          15   OJSC "Vimpelcom"
12479     1139        981          83   France Telecom Espana SA
13188     1077         98          78   TOV "Bank-Inform"
31148     1041         47          41   Freenet Ltd.
 9198      970        352          25   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
10620     3434        541         150   Telmex Colombia S.A.
 8151     2173       3392         519   Uninet S.A. de C.V.
 7303     1520        940         239   Telecom Argentina S.A.
11830     1434        366          25   Instituto Costarricense de El
 6503     1428        437          56   Axtel, S.A.B. de C.V.
 6147     1036        377          27   Telefonica del Peru S.A.A.
28573     1005       2177         155   NET Serviços de Comunicação S
26615      995       2325          34   Tim Celular S.A.
 7738      994       1882          41   Telemar Norte Leste S.A.
 3816      984        477         191   COLOMBIA TELECOMUNICACIONES S

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     1422       1472          15   TE-AS
24863     1193        402          39   Link Egypt (Link.NET)
37611      626         48           2   Afrihost-Brevis Computer Serv
36903      584        294         104   Office National des Postes et
36992      501       1239          29   ETISALAT MISR
37492      358        216          66   Orange Tunisie
24835      333        146          12   Vodafone Data
29571      266         21          12   Cote d'Ivoire Telecom
 2018      249        327          74   TENET (The UNINET Project)
 3741      220        821         181   Internet Solutions

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
 4538     5592       4192          76   China Education and Research 
10620     3434        541         150   Telmex Colombia S.A.
22773     3291       2948         147   Cox Communications Inc.
 7545     3187        351         182   TPG Telecom Limited
 4766     3117      11142        1094   Korea Telecom
17974     2908        914          96   PT Telekomunikasi Indonesia
39891     2515        135           9   SaudiNet, Saudi Telecom Compa
20940     2405        928        1719   Akamai International B.V.
 6389     2394       3687          42   BellSouth.net Inc.
 9829     2381       1448         428   National Internet Backbone

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

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

  ASN   No of nets  Net Savings Description
10620      3434        3284      Telmex Colombia S.A.
22773      3291        3144      Cox Communications Inc.
 7545      3187        3005      TPG Telecom Limited
17974      2908        2812      PT Telekomunikasi Indonesia
39891      2515        2506      SaudiNet, Saudi Telecom Compa
 6389      2394        2352      BellSouth.net Inc.
 4766      3117        2023      Korea Telecom
 9829      2381        1953      National Internet Backbone
18566      2211        1935      MegaPath Corporation
 4755      2084        1847      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
65001   PRIVATE      5.143.176.0/20       15468       OJSC Rostelecom
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
46473   UNALLOCATED  8.27.122.0/24         3356       Level 3 Communicatio
46473   UNALLOCATED  8.27.124.0/24         3356       Level 3 Communicatio
27205   UNALLOCATED  8.38.16.0/21          3356       Level 3 Communicatio
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
23.226.112.0/20      62788     >>UNKNOWN<<
23.249.144.0/20      40430     colo4jax, LLC
27.100.7.0/24        56096     >>UNKNOWN<<
37.46.10.0/23        36351     SoftLayer Technologies Inc.
37.46.14.0/24        36351     SoftLayer Technologies Inc.
37.46.15.0/24        36351     SoftLayer Technologies Inc.
41.73.1.0/24         37004     >>UNKNOWN<<
41.73.2.0/24         37004     >>UNKNOWN<<
41.73.3.0/24         37004     >>UNKNOWN<<
41.73.4.0/24         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      /10:36      /11:101     /12:266     
/13:513     /14:1027    /15:1761    /16:12973   /17:7484    /18:12589   
/19:25694   /20:38134   /21:40127   /22:65105   /23:56132   /24:321847  
/25:550     /26:585     /27:401     /28:18      /29:16      /30:12      
/31:0       /32:22      

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

  ASN   No of nets  Total ann.   Description
22773     2476          3291      Cox Communications Inc.
39891     2472          2515      SaudiNet, Saudi Telecom Compa
18566     2113          2211      MegaPath Corporation
30036     1528          1713      Mediacom Communications Corp
 6389     1521          2394      BellSouth.net Inc.
 6983     1340          1690      EarthLink, Inc.
10620     1320          3434      Telmex Colombia S.A.
34984     1236          1947      TELLCOM ILETISIM HIZMETLERI A
11492     1164          1254      CABLE ONE, INC.
 6849      997          1179      JSC "Ukrtelecom"

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

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

   1:1601      2:735       4:20        5:2099      6:26        8:914    
  12:1783     13:36       14:1680     15:22       16:2        17:68     
  18:20       20:48       23:1376     24:1743     27:2245     31:1745   
  32:54       33:2        34:2        35:4        36:234      37:2356   
  38:1175     39:26       40:85       41:3188     42:385      43:1683   
  44:40       45:1698     46:2418     47:68       49:1121     50:844    
  51:3        52:76       54:179      55:3        56:6        57:44     
  58:1510     59:860      60:564      61:1793     62:1446     63:1921   
  64:4465     65:2167     66:4057     67:2086     68:1104     69:3300   
  70:1040     71:464      72:1983     74:2543     75:357      76:426    
  77:1376     78:1281     79:813      80:1305     81:1358     82:899    
  83:671      84:800      85:1581     86:468      87:1040     88:563    
  89:1935     90:167      91:6049     92:852      93:2312     94:2381   
  95:2284     96:471      97:356      98:954      99:45      100:69     
 101:1010    103:9846    104:2263    105:101     106:390     107:1145   
 108:651     109:2143    110:1262    111:1624    112:936     113:1275   
 114:1111    115:1687    116:1522    117:1408    118:2109    119:1540   
 120:510     121:1168    122:2234    123:2015    124:1612    125:1748   
 128:719     129:369     130:427     131:1272    132:595     133:171    
 134:449     135:122     136:353     137:337     138:1717    139:200    
 140:248     141:466     142:629     143:870     144:598     145:160    
 146:843     147:605     148:1463    149:471     150:662     151:825    
 152:602     153:270     154:573     155:900     156:487     157:428    
 158:347     159:1090    160:426     161:723     162:2279    163:530    
 164:728     165:1119    166:313     167:1018    168:1517    169:600    
 170:1498    171:264     172:470     173:1637    174:719     175:869    
 176:1512    177:4028    178:2217    179:1074    180:2112    181:1670   
 182:1947    183:684     184:790     185:5791    186:3027    187:1990   
 188:2091    189:1728    190:7668    191:1227    192:8887    193:5725   
 194:4355    195:3762    196:1654    197:1318    198:5503    199:5574   
 200:6827    201:3722    202:10112   203:9591    204:4617    205:2691   
 206:2983    207:3055    208:4041    209:3871    210:3953    211:2010   
 212:2653    213:2190    214:808     215:73      216:5714    217:1905   
 218:749     219:564     220:1660    221:851     222:681     223:931    


End of report


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