Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jan 30 18:11:54 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 31 Jan, 2015

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

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

BGP routing table entries examined:                              529971
    Prefixes after maximum aggregation (per Origin AS):          202983
    Deaggregation factor:                                          2.61
    Unique aggregates announced (without unneeded subnets):      258157
Total ASes present in the Internet Routing Table:                 49242
    Prefixes per ASN:                                             10.76
Origin-only ASes present in the Internet Routing Table:           36405
Origin ASes announcing only one prefix:                           16292
Transit ASes present in the Internet Routing Table:                6246
Transit-only ASes present in the Internet Routing Table:            169
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:              1714
    Unregistered ASNs in the Routing Table:                         422
Number of 32-bit ASNs allocated by the RIRs:                       8474
Number of 32-bit ASNs visible in the Routing Table:                6591
Prefixes from 32-bit ASNs in the Routing Table:                   23699
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:            356
Number of addresses announced to Internet:                   2723625508
    Equivalent to 162 /8s, 87 /16s and 58 /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:               97.2
Total number of prefixes smaller than registry allocations:      179682

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

Prefixes being announced by APNIC Region ASes:                   130804
    Total APNIC prefixes after maximum aggregation:               38186
    APNIC Deaggregation factor:                                    3.43
Prefixes being announced from the APNIC address blocks:          135954
    Unique aggregates announced from the APNIC address blocks:    55417
APNIC Region origin ASes present in the Internet Routing Table:    5021
    APNIC Prefixes per ASN:                                       27.08
APNIC Region origin ASes announcing only one prefix:               1227
APNIC Region transit ASes present in the Internet Routing Table:    872
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                        107
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1275
Number of APNIC addresses announced to Internet:              741480576
    Equivalent to 44 /8s, 50 /16s and 24 /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:                    175130
    Total ARIN prefixes after maximum aggregation:                86650
    ARIN Deaggregation factor:                                     2.02
Prefixes being announced from the ARIN address blocks:           177109
    Unique aggregates announced from the ARIN address blocks:     82854
ARIN Region origin ASes present in the Internet Routing Table:    16458
    ARIN Prefixes per ASN:                                        10.76
ARIN Region origin ASes announcing only one prefix:                6081
ARIN Region transit ASes present in the Internet Routing Table:    1722
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:     331
Number of ARIN addresses announced to Internet:              1059902240
    Equivalent to 63 /8s, 44 /16s and 211 /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:                    129159
    Total RIPE prefixes after maximum aggregation:                64185
    RIPE Deaggregation factor:                                     2.01
Prefixes being announced from the RIPE address blocks:           135279
    Unique aggregates announced from the RIPE address blocks:     83134
RIPE Region origin ASes present in the Internet Routing Table:    17839
    RIPE Prefixes per ASN:                                         7.58
RIPE Region origin ASes announcing only one prefix:                8133
RIPE Region transit ASes present in the Internet Routing Table:    2942
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:    3398
Number of RIPE addresses announced to Internet:               692818564
    Equivalent to 41 /8s, 75 /16s and 146 /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:                   58588
    Total LACNIC prefixes after maximum aggregation:              10951
    LACNIC Deaggregation factor:                                   5.35
Prefixes being announced from the LACNIC address blocks:          67869
    Unique aggregates announced from the LACNIC address blocks:   31417
LACNIC Region origin ASes present in the Internet Routing Table:   2397
    LACNIC Prefixes per ASN:                                      28.31
LACNIC Region origin ASes announcing only one prefix:               644
LACNIC Region transit ASes present in the Internet Routing Table:   481
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        34
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1499
Number of LACNIC addresses announced to Internet:             167768576
    Equivalent to 9 /8s, 255 /16s and 242 /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:                  12418
    Total AfriNIC prefixes after maximum aggregation:              2967
    AfriNIC Deaggregation factor:                                  4.19
Prefixes being announced from the AfriNIC address blocks:         13404
    Unique aggregates announced from the AfriNIC address blocks:   5016
AfriNIC Region origin ASes present in the Internet Routing Table:   737
    AfriNIC Prefixes per ASN:                                     18.19
AfriNIC Region origin ASes announcing only one prefix:              207
AfriNIC Region transit ASes present in the Internet Routing Table:  157
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:   88
Number of AfriNIC addresses announced to Internet:             61094400
    Equivalent to 3 /8s, 164 /16s and 58 /24s
    Percentage of available AfriNIC address space announced:       60.7

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     2877      11553         909   Korea Telecom
17974     2842        905          78   PT Telekomunikasi Indonesia
 7545     2488        336         128   TPG Telecom Limited
 4755     1943        418         196   TATA Communications formerly 
 4538     1757       4190          71   China Education and Research 
 9829     1685       1324          34   National Internet Backbone
 9808     1525       6719          19   Guangdong Mobile Communicatio
 4808     1460       2218         436   CNCGROUP IP network China169 
 9583     1391        115         572   Sify Limited
 9498     1296        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     2930       2955         141   Cox Communications Inc.
 6389     2891       3688          51   BellSouth.net Inc.
 3356     2569      10688         477   Level 3 Communications, Inc.
18566     2043        379         183   MegaPath Corporation
20115     1850       1826         450   Charter Communications
 4323     1623       1037         407   tw telecom holdings, inc.
 6983     1622        866         244   EarthLink, Inc.
30036     1520        315         521   Mediacom Communications Corp
  701     1398      11271         684   MCI Communications Services, 
22561     1331        411         240   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
39891     2069        139          10   SaudiNet, Saudi Telecom Compa
34984     1956        300         357   TELLCOM ILETISIM HIZMETLERI A
20940     1567        613        1162   Akamai International B.V.
 8402     1437        544          15   OJSC "Vimpelcom"
 6849     1234        358          26   JSC "Ukrtelecom"
31148     1045         45          21   Freenet Ltd.
13188     1037         97          58   TOV "Bank-Inform"
 8551      904        373          48   Bezeq International-Ltd
12479      847        793          85   France Telecom Espana SA
 9198      843        349          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     3073        498         223   Telmex Colombia S.A.
28573     2346       2139         112   NET Serviços de Comunicação S
 7303     1770       1173         238   Telecom Argentina S.A.
 6147     1695        374          30   Telefonica del Peru S.A.A.
 8151     1495       3094         427   Uninet S.A. de C.V.
 6503     1227        421          57   Axtel, S.A.B. de C.V.
 7738     1000       1882          42   Telemar Norte Leste S.A.
 3816      920        396         149   COLOMBIA TELECOMUNICACIONES S
26615      913       2325          35   Tim Celular S.A.
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     1520        958          13   TE-AS
24863      953        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      234         21          12   Cote d'Ivoire Telecom
36947      191        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     3073        498         223   Telmex Colombia S.A.
22773     2930       2955         141   Cox Communications Inc.
 6389     2891       3688          51   BellSouth.net Inc.
 4766     2877      11553         909   Korea Telecom
17974     2842        905          78   PT Telekomunikasi Indonesia
 3356     2569      10688         477   Level 3 Communications, Inc.
 7545     2488        336         128   TPG Telecom Limited
28573     2346       2139         112   NET Serviços de Comunicação S
39891     2069        139          10   SaudiNet, Saudi Telecom Compa
18566     2043        379         183   MegaPath Corporation

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      2930        2789      Cox Communications Inc.
17974      2842        2764      PT Telekomunikasi Indonesia
 7545      2488        2360      TPG Telecom Limited
28573      2346        2234      NET Serviços de Comunicação S
 3356      2569        2092      Level 3 Communications, Inc.
39891      2069        2059      SaudiNet, Saudi Telecom Compa
 4766      2877        1968      Korea Telecom
18566      2043        1860      MegaPath Corporation
 4755      1943        1747      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      /12:264     
/13:502     /14:997     /15:1718    /16:12975   /17:7131    /18:12135   
/19:24997   /20:35644   /21:38397   /22:57495   /23:50361   /24:284231  
/25:1151    /26:1091    /27:680     /28:17      /29:14      /30:8       
/31:0       /32:11      

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

  ASN   No of nets  Total ann.   Description
22773     2143          2930      Cox Communications Inc.
39891     2012          2069      SaudiNet, Saudi Telecom Compa
18566     1998          2043      MegaPath Corporation
 6389     1671          2891      BellSouth.net Inc.
30036     1366          1520      Mediacom Communications Corp
 6983     1313          1622      EarthLink, Inc.
34984     1260          1956      TELLCOM ILETISIM HIZMETLERI A
 6147     1241          1695      Telefonica del Peru S.A.A.
11492     1131          1189      CABLE ONE, INC.
 8402     1103          1437      OJSC "Vimpelcom"

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

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

   1:1468      2:673       3:1         4:97        5:1204      6:21     
   8:1404     12:1843     13:4        14:1240     15:17       16:2      
  17:42       18:21       20:50       23:1095     24:1677     27:1825   
  31:1468     32:39       33:2        34:5        35:2        36:129    
  37:1900     38:978      39:11       40:232      41:2976     42:262    
  43:980      44:23       45:105      46:2093     47:34       49:786    
  50:790      52:12       54:66       55:5        56:8        57:32     
  58:1198     59:681      60:455      61:1760     62:1311     63:1903   
  64:4442     65:2257     66:4083     67:2019     68:1040     69:3276   
  70:907      71:431      72:1969     74:2616     75:314      76:413    
  77:1465     78:1298     79:783      80:1324     81:1305     82:796    
  83:628      84:674      85:1322     86:376      87:1162     88:514    
  89:1740     90:139      91:5856     92:802      93:2206     94:1866   
  95:2071     96:418      97:335      98:1039     99:47      100:75     
 101:790     103:6585    104:1163    105:54      106:202     107:887    
 108:608     109:2008    110:1067    111:1477    112:745     113:930    
 114:841     115:1253    116:1320    117:1022    118:1688    119:1409   
 120:452     121:1038    122:2176    123:1714    124:1496    125:1540   
 128:643     129:386     130:380     131:1075    132:470     133:167    
 134:389     135:87      136:311     137:296     138:417     139:173    
 140:223     141:414     142:625     143:442     144:519     145:111    
 146:708     147:564     148:1067    149:418     150:559     151:586    
 152:482     153:247     154:309     155:712     156:398     157:332    
 158:265     159:957     160:368     161:634     162:1881    163:388    
 164:651     165:669     166:321     167:705     168:1002    169:141    
 170:1430    171:223     172:42      173:1596    174:702     175:612    
 176:1460    177:3635    178:2092    179:862     180:1876    181:1594   
 182:1700    183:604     184:738     185:2754    186:2717    187:1794   
 188:2017    189:1539    190:7808    191:851     192:8077    193:5553   
 194:4040    195:3634    196:1693    197:887     198:5444    199:5500   
 200:6464    201:2909    202:9521    203:9081    204:4658    205:2730   
 206:3015    207:2978    208:3950    209:3871    210:3486    211:1827   
 212:2436    213:2301    214:832     215:69      216:5536    217:1808   
 218:665     219:466     220:1342    221:796     222:464     223:657    


End of report



More information about the NANOG mailing list