Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Aug 8 18:11:13 UTC 2014


This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.

The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG,
TRNOG, 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 09 Aug, 2014

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

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

BGP routing table entries examined:                              506245
    Prefixes after maximum aggregation:                          196119
    Deaggregation factor:                                          2.58
    Unique aggregates announced to Internet:                     248983
Total ASes present in the Internet Routing Table:                 47413
    Prefixes per ASN:                                             10.68
Origin-only ASes present in the Internet Routing Table:           36034
Origin ASes announcing only one prefix:                           16386
Transit ASes present in the Internet Routing Table:                6125
Transit-only ASes present in the Internet Routing Table:            177
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      53
    Max AS path prepend of ASN ( 50404)                              51
Prefixes from unregistered ASNs in the Routing Table:              1680
    Unregistered ASNs in the Routing Table:                         441
Number of 32-bit ASNs allocated by the RIRs:                       7148
Number of 32-bit ASNs visible in the Routing Table:                5254
Prefixes from 32-bit ASNs in the Routing Table:                   19053
Number of bogon 32-bit ASNs visible in the Routing Table:           514
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            438
Number of addresses announced to Internet:                   2711353476
    Equivalent to 161 /8s, 155 /16s and 248 /24s
    Percentage of available address space announced:               73.2
    Percentage of allocated address space announced:               73.2
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               96.7
Total number of prefixes smaller than registry allocations:      174121

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

Prefixes being announced by APNIC Region ASes:                   122248
    Total APNIC prefixes after maximum aggregation:               35814
    APNIC Deaggregation factor:                                    3.41
Prefixes being announced from the APNIC address blocks:          125678
    Unique aggregates announced from the APNIC address blocks:    51910
APNIC Region origin ASes present in the Internet Routing Table:    4964
    APNIC Prefixes per ASN:                                       25.32
APNIC Region origin ASes announcing only one prefix:               1231
APNIC Region transit ASes present in the Internet Routing Table:    872
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         28
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1033
Number of APNIC addresses announced to Internet:              734075264
    Equivalent to 43 /8s, 193 /16s and 25 /24s
    Percentage of available APNIC address space announced:         85.8

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-63999, 131072-133631
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:                    170510
    Total ARIN prefixes after maximum aggregation:                84267
    ARIN Deaggregation factor:                                     2.02
Prefixes being announced from the ARIN address blocks:           172356
    Unique aggregates announced from the ARIN address blocks:     80407
ARIN Region origin ASes present in the Internet Routing Table:    16357
    ARIN Prefixes per ASN:                                        10.54
ARIN Region origin ASes announcing only one prefix:                6130
ARIN Region transit ASes present in the Internet Routing Table:    1690
Average ARIN Region AS path length visible:                         4.0
    Max ARIN Region AS path length visible:                          22
Number of ARIN region 32-bit ASNs visible in the Routing Table:     162
Number of ARIN addresses announced to Internet:              1091961344
    Equivalent to 65 /8s, 22 /16s and 2 /24s
    Percentage of available ARIN address space announced:          57.8

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:                    124574
    Total RIPE prefixes after maximum aggregation:                62986
    RIPE Deaggregation factor:                                     1.98
Prefixes being announced from the RIPE address blocks:           129384
    Unique aggregates announced from the RIPE address blocks:     81972
RIPE Region origin ASes present in the Internet Routing Table:    17700
    RIPE Prefixes per ASN:                                         7.31
RIPE Region origin ASes announcing only one prefix:                8244
RIPE Region transit ASes present in the Internet Routing Table:    2871
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          53
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2727
Number of RIPE addresses announced to Internet:               658697860
    Equivalent to 39 /8s, 66 /16s and 238 /24s
    Percentage of available RIPE address space announced:          95.8

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:                   58756
    Total LACNIC prefixes after maximum aggregation:              10293
    LACNIC Deaggregation factor:                                   5.71
Prefixes being announced from the LACNIC address blocks:          66605
    Unique aggregates announced from the LACNIC address blocks:   29814
LACNIC Region origin ASes present in the Internet Routing Table:   2203
    LACNIC Prefixes per ASN:                                      30.23
LACNIC Region origin ASes announcing only one prefix:               567
LACNIC Region transit ASes present in the Internet Routing Table:   451
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        26
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1282
Number of LACNIC addresses announced to Internet:             167756416
    Equivalent to 9 /8s, 255 /16s and 194 /24s
    Percentage of available LACNIC address space announced:       100.0

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 262144-263679 plus 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:                  11017
    Total AfriNIC prefixes after maximum aggregation:              2722
    AfriNIC Deaggregation factor:                                  4.05
Prefixes being announced from the AfriNIC address blocks:         11784
    Unique aggregates announced from the AfriNIC address blocks:   4527
AfriNIC Region origin ASes present in the Internet Routing Table:   733
    AfriNIC Prefixes per ASN:                                     16.08
AfriNIC Region origin ASes announcing only one prefix:              214
AfriNIC Region transit ASes present in the Internet Routing Table:  161
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   50
Number of AfriNIC addresses announced to Internet:             58436864
    Equivalent to 3 /8s, 123 /16s and 173 /24s
    Percentage of available AfriNIC address space announced:       58.1

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     2951      11590         922   Korea Telecom
17974     2802        899          72   PT Telekomunikasi Indonesia
 7545     2332        320         118   TPG Telecom Limited
 4755     1868        392         200   TATA Communications formerly 
 9829     1643       1306          31   National Internet Backbone
 9583     1315        104         537   Sify Limited
 9498     1299        317          92   BHARTI Airtel Ltd.
 7552     1239       1098          14   Viettel Corporation
 4808     1213       2155         372   CNCGROUP IP network China169 
24560     1159        399         191   Bharti Airtel Ltd., Telemedia

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
 7029     3211       1905         304   Windstream Communications Inc
 6389     2938       3688          51   BellSouth.net Inc.
22773     2735       2940         141   Cox Communications Inc.
18566     2047        379         178   MegaPath Corporation
20115     1749       1735         537   Charter Communications
 4323     1633       1072         410   tw telecom holdings, inc.
30036     1560        333         483   Mediacom Communications Corp
  701     1442      11227         726   MCI Communications Services, 
 6983     1416        817         314   ITC^Deltacom
22561     1303        406         234   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     1725        265         278   TELLCOM ILETISIM HIZMETLERI A
20940     1455        567        1071   Akamai International B.V.
 8402     1327        544          15   OJSC "Vimpelcom"
13188     1050         97          48   TOV "Bank-Inform"
31148     1043         45          21   Freenet Ltd.
 8551      996        371          42   Bezeq International-Ltd
 6849      792        356          27   JSC "Ukrtelecom"
12479      773        798          58   France Telecom Espana SA
 6830      772       2334         427   Liberty Global Operations B.V
 9198      602        346          28   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
28573     3725       2027         106   NET Serviços de Comunicação S
10620     2937        476         224   Telmex Colombia S.A.
18881     2068       1036          22   Global Village Telecom
 7303     1771       1180         232   Telecom Argentina S.A.
 8151     1444       2989         408   Uninet S.A. de C.V.
 6503     1091        434          62   Axtel, S.A.B. de C.V.
 6147     1047        373          28   Telefonica del Peru S.A.A.
 7738      977       1882          41   Telemar Norte Leste S.A.
27947      897        130          51   Telconet S.A
26615      868       2325          35   Tim Celular 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
24863      932        280          26   Link Egypt (Link.NET)
 6713      669        744          37   Office National des Postes et
 8452      595        958          13   TE-AS
24835      305        144           9   Vodafone Data
36992      298        784          26   ETISALAT MISR
 3741      249        920         212   Internet Solutions
37054      239         19           6   Data Telecom Service
29571      236         22          17   Cote d'Ivoire Telecom
15706      187         32           6   Sudatel (Sudan Telecom Co. Lt
12258      175         26          72   MWEB CONNECT (PROPRIETARY) LI

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
28573     3725       2027         106   NET Serviços de Comunicação S
 7029     3211       1905         304   Windstream Communications Inc
 4766     2951      11590         922   Korea Telecom
 6389     2938       3688          51   BellSouth.net Inc.
10620     2937        476         224   Telmex Colombia S.A.
17974     2802        899          72   PT Telekomunikasi Indonesia
22773     2735       2940         141   Cox Communications Inc.
 7545     2332        320         118   TPG Telecom Limited
18881     2068       1036          22   Global Village Telecom
18566     2047        379         178   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
 7029      3211        2907      Windstream Communications Inc
 6389      2938        2887      BellSouth.net Inc.
17974      2802        2730      PT Telekomunikasi Indonesia
10620      2937        2713      Telmex Colombia S.A.
22773      2735        2594      Cox Communications Inc.
 7545      2332        2214      TPG Telecom Limited
18881      2068        2046      Global Village Telecom
 4766      2951        2029      Korea Telecom
18566      2047        1869      MegaPath Corporation
 4755      1868        1668      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         2828       XO Communications
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
55020   UNALLOCATED  8.30.123.0/24         3356       Level 3 Communicatio
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
23.226.240.0/20      40430     colo4jax, LLC
23.226.240.0/21      40430     colo4jax, LLC
23.226.248.0/21      40430     colo4jax, LLC
24.231.96.0/24       21548     MTO Telecom Inc.
27.100.7.0/24        56096     >>UNKNOWN<<
41.70.8.0/21         37098     globe internet limited
41.70.16.0/20        37098     globe internet limited
41.70.40.0/21        37098     globe internet limited
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       /9:13      /10:30      /11:91      /12:259     
/13:497     /14:982     /15:1704    /16:13041   /17:7020    /18:11692   
/19:24686   /20:35123   /21:37523   /22:54567   /23:47754   /24:269179  
/25:800     /26:811     /27:402     /28:12      /29:17      /30:10      
/31:1       /32:15      

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

  ASN   No of nets  Total ann.   Description
18566     2002          2047      MegaPath Corporation
22773     1978          2735      Cox Communications Inc.
 7029     1786          3211      Windstream Communications Inc
 6389     1691          2938      BellSouth.net Inc.
30036     1401          1560      Mediacom Communications Corp
11492     1194          1243      CABLE ONE, INC.
 6983     1122          1416      ITC^Deltacom
34984     1052          1725      TELLCOM ILETISIM HIZMETLERI A
10620     1029          2937      Telmex Colombia S.A.
 8402     1028          1327      OJSC "Vimpelcom"

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

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

   1:1309      2:658       3:3         4:15        5:1053      6:21     
   8:722      12:1855     13:4        14:1107     15:15       16:2      
  17:40       18:21       20:53       23:892      24:1764     27:1775   
  31:1472     32:41       33:2        34:5        36:141      37:1854   
  38:964      39:7        40:210      41:2581     42:259      43:170    
  44:17       45:50       46:2157     47:24       49:732      50:836    
  52:12       54:48       55:2        56:4        57:31       58:1224   
  59:618      60:427      61:1592     62:1239     63:1866     64:4404   
  65:2325     66:4234     67:2068     68:1048     69:3338     70:894    
  71:464      72:2021     74:2637     75:337      76:416      77:1662   
  78:793      79:711      80:1312     81:1211     82:759      83:767    
  84:768      85:1320     86:416      87:1144     88:468      89:1778   
  90:137      91:5703     92:759      93:1768     94:2016     95:1610   
  96:508      97:363      98:1113     99:49      100:65      101:707    
 103:5360    104:187     105:36      106:178     107:596     108:585    
 109:2011    110:1021    111:1340    112:676     113:859     114:783    
 115:1110    116:1120    117:992     118:1514    119:1419    120:420    
 121:858     122:2164    123:1538    124:1435    125:1565    128:584    
 129:336     130:363     131:661     132:405     133:162     134:323    
 135:76      136:299     137:286     138:371     139:170     140:207    
 141:390     142:562     143:419     144:506     145:115     146:649    
 147:498     148:972     149:405     150:420     151:604     152:450    
 153:219     154:320     155:517     156:354     157:344     158:272    
 159:936     160:327     161:570     162:1687    163:342     164:694    
 165:638     166:345     167:668     168:1116    169:124     170:1379   
 171:181     172:65      173:1539    174:707     175:606     176:1495   
 177:3488    178:2072    179:773     180:1781    181:1336    182:1611   
 183:540     184:704     185:1921    186:2924    187:1634    188:2157   
 189:1458    190:7624    191:686     192:7472    193:5499    194:4056   
 195:3555    196:1439    197:678     198:5109    199:5522    200:6306   
 201:2771    202:9168    203:9016    204:4535    205:2669    206:2967   
 207:2958    208:3974    209:3774    210:3169    211:1798    212:2339   
 213:2116    214:860     215:87      216:5716    217:1681    218:614    
 219:331     220:1283    221:625     222:360     223:591    

End of report


More information about the NANOG mailing list