Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Mar 7 18:11:55 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 08 Mar, 2014

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

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

BGP routing table entries examined:                              485175
    Prefixes after maximum aggregation:                          191734
    Deaggregation factor:                                          2.53
    Unique aggregates announced to Internet:                     240090
Total ASes present in the Internet Routing Table:                 46277
    Prefixes per ASN:                                             10.48
Origin-only ASes present in the Internet Routing Table:           35607
Origin ASes announcing only one prefix:                           16396
Transit ASes present in the Internet Routing Table:                6052
Transit-only ASes present in the Internet Routing Table:            168
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:              1875
    Unregistered ASNs in the Routing Table:                         485
Number of 32-bit ASNs allocated by the RIRs:                       6056
Number of 32-bit ASNs visible in the Routing Table:                4618
Prefixes from 32-bit ASNs in the Routing Table:                   14855
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:            443
Number of addresses announced to Internet:                   2657868548
    Equivalent to 158 /8s, 107 /16s and 219 /24s
    Percentage of available address space announced:               71.8
    Percentage of allocated address space announced:               71.8
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               95.8
Total number of prefixes smaller than registry allocations:      168995

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

Prefixes being announced by APNIC Region ASes:                   115350
    Total APNIC prefixes after maximum aggregation:               34578
    APNIC Deaggregation factor:                                    3.34
Prefixes being announced from the APNIC address blocks:          117967
    Unique aggregates announced from the APNIC address blocks:    49596
APNIC Region origin ASes present in the Internet Routing Table:    4890
    APNIC Prefixes per ASN:                                       24.12
APNIC Region origin ASes announcing only one prefix:               1225
APNIC Region transit ASes present in the Internet Routing Table:    861
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         30
Number of APNIC region 32-bit ASNs visible in the Routing Table:    855
Number of APNIC addresses announced to Internet:              730759040
    Equivalent to 43 /8s, 142 /16s and 127 /24s
    Percentage of available APNIC address space announced:         85.4

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:                    166347
    Total ARIN prefixes after maximum aggregation:                82770
    ARIN Deaggregation factor:                                     2.01
Prefixes being announced from the ARIN address blocks:           167732
    Unique aggregates announced from the ARIN address blocks:     78116
ARIN Region origin ASes present in the Internet Routing Table:    16170
    ARIN Prefixes per ASN:                                        10.37
ARIN Region origin ASes announcing only one prefix:                6120
ARIN Region transit ASes present in the Internet Routing Table:    1667
Average ARIN Region AS path length visible:                         4.0
    Max ARIN Region AS path length visible:                          21
Number of ARIN region 32-bit ASNs visible in the Routing Table:      71
Number of ARIN addresses announced to Internet:              1066741632
    Equivalent to 63 /8s, 149 /16s and 47 /24s
    Percentage of available ARIN address space announced:          56.4

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:                    121984
    Total RIPE prefixes after maximum aggregation:                61753
    RIPE Deaggregation factor:                                     1.98
Prefixes being announced from the RIPE address blocks:           125946
    Unique aggregates announced from the RIPE address blocks:     79923
RIPE Region origin ASes present in the Internet Routing Table:    17630
    RIPE Prefixes per ASN:                                         7.14
RIPE Region origin ASes announcing only one prefix:                8298
RIPE Region transit ASes present in the Internet Routing Table:    2866
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:    2648
Number of RIPE addresses announced to Internet:               656662148
    Equivalent to 39 /8s, 35 /16s and 222 /24s
    Percentage of available RIPE address space announced:          95.5

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:                   54609
    Total LACNIC prefixes after maximum aggregation:               9944
    LACNIC Deaggregation factor:                                   5.49
Prefixes being announced from the LACNIC address blocks:          60505
    Unique aggregates announced from the LACNIC address blocks:   27859
LACNIC Region origin ASes present in the Internet Routing Table:   2071
    LACNIC Prefixes per ASN:                                      29.22
LACNIC Region origin ASes announcing only one prefix:               549
LACNIC Region transit ASes present in the Internet Routing Table:   425
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        32
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1033
Number of LACNIC addresses announced to Internet:             151999104
    Equivalent to 9 /8s, 15 /16s and 82 /24s
    Percentage of available LACNIC address space announced:        90.6

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:                  11913
    Total AfriNIC prefixes after maximum aggregation:              2652
    AfriNIC Deaggregation factor:                                  4.49
Prefixes being announced from the AfriNIC address blocks:         12582
    Unique aggregates announced from the AfriNIC address blocks:   4226
AfriNIC Region origin ASes present in the Internet Routing Table:   705
    AfriNIC Prefixes per ASN:                                     17.85
AfriNIC Region origin ASes announcing only one prefix:              204
AfriNIC Region transit ASes present in the Internet Routing Table:  152
Average AfriNIC Region AS path length visible:                      4.8
    Max AfriNIC Region AS path length visible:                       28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   11
Number of AfriNIC addresses announced to Internet:             51382784
    Equivalent to 3 /8s, 16 /16s and 10 /24s
    Percentage of available AfriNIC address space announced:       51.0

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     2983      11580         895   Korea Telecom
17974     2757        903          78   PT Telekomunikasi Indonesia
 7545     2196        320         117   TPG Telecom Limited
 4755     1834        396         196   TATA Communications formerly 
 9829     1594       1283          39   National Internet Backbone
 9583     1307        102         534   Sify Limited
 7552     1250       1082          13   Viettel Corporation
 9498     1241        311          77   BHARTI Airtel Ltd.
 4808     1181       2123         359   CNCGROUP IP network China169 
24560     1111        384         176   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
 6389     3020       3688          53   BellSouth.net Inc.
22773     2320       2938         140   Cox Communications Inc.
 1785     2180        693         127   PaeTec Communications, Inc.
18566     2048        379         178   MegaPath Corporation
20115     1688       1673         576   Charter Communications
 4323     1622       1089         412   tw telecom holdings, inc.
  701     1491      11174         763   MCI Communications Services, 
30036     1385        298         556   Mediacom Communications Corp
 6983     1322        815         307   ITC^Deltacom
22561     1300        401         228   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
 8402     1690        544          16   OJSC "Vimpelcom"
34984     1472        264         248   TELLCOM ILETISIM HIZMETLERI A
20940     1286        497         967   Akamai International B.V.
13188     1048        100          28   TOV "Bank-Inform"
31148     1017         45          21   Freenet Ltd.
 8551      891        370          41   Bezeq International-Ltd
 6849      830        361          34   JSC "Ukrtelecom"
 6830      775       2331         426   Liberty Global Operations B.V
12479      712        798          51   France Telecom Espana SA
35228      555        246          16   Telefonica UK Limited

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     3539       1938          93   NET Serviços de Comunicação S
10620     2776        443         182   Telmex Colombia S.A.
18881     1916        972          21   Global Village Telecom
 7303     1696       1169         219   Telecom Argentina S.A.
 8151     1374       2883         415   Uninet S.A. de C.V.
 6503      943        434          61   Axtel, S.A.B. de C.V.
11830      875        364          15   Instituto Costarricense de El
27947      853        113          48   Telconet S.A
 7738      846       1626          39   Telemar Norte Leste S.A.
 3816      783        316         126   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
36998     1638        240           6   Sudanese Mobile Telephone (ZA
24863      922        376          28   Link Egypt (Link.NET)
 6713      602        685          28   Office National des Postes et
 8452      529        958          13   TE-AS
24835      299        144           9   Vodafone Data
36992      264        783          24   ETISALAT MISR
 3741      248        921         209   Internet Solutions
15706      219         32           6   Sudatel (Sudan Telecom Co. Lt
29571      207         22          17   Cote d'Ivoire Telecom
29975      192        668          21   Vodacom

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     3539       1938          93   NET Serviços de Comunicação S
 6389     3020       3688          53   BellSouth.net Inc.
 4766     2983      11580         895   Korea Telecom
10620     2776        443         182   Telmex Colombia S.A.
17974     2757        903          78   PT Telekomunikasi Indonesia
22773     2320       2938         140   Cox Communications Inc.
 7545     2196        320         117   TPG Telecom Limited
 1785     2180        693         127   PaeTec Communications, Inc.
18566     2048        379         178   MegaPath Corporation
18881     1916        972          21   Global Village Telecom

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      3020        2967      BellSouth.net Inc.
17974      2757        2679      PT Telekomunikasi Indonesia
10620      2776        2594      Telmex Colombia S.A.
22773      2320        2180      Cox Communications Inc.
 4766      2983        2088      Korea Telecom
 7545      2196        2079      TPG Telecom Limited
 1785      2180        2053      PaeTec Communications, Inc.
18881      1916        1895      Global Village Telecom
18566      2048        1870      MegaPath Corporation
 8402      1690        1674      OJSC "Vimpelcom"

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
14728   UNALLOCATED  8.8.192.0/23          3356       Level 3 Communicatio
14728   UNALLOCATED  8.8.196.0/22          3356       Level 3 Communicatio
14728   UNALLOCATED  8.8.200.0/23          3356       Level 3 Communicatio
14728   UNALLOCATED  8.8.202.0/23          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

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

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
27.100.7.0/24        56096     >>UNKNOWN<<
41.73.1.0/24         37004     >>UNKNOWN<<
41.73.2.0/24         37004     >>UNKNOWN<<
41.73.10.0/24        37004     >>UNKNOWN<<
41.73.11.0/24        37004     >>UNKNOWN<<
41.73.12.0/24        37004     >>UNKNOWN<<
41.73.13.0/24        37004     >>UNKNOWN<<
41.73.14.0/24        37004     >>UNKNOWN<<
41.73.15.0/24        37004     >>UNKNOWN<<
41.73.16.0/24        37004     >>UNKNOWN<<

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

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:16       /9:12      /10:30      /11:90      /12:255     
/13:474     /14:953     /15:1652    /16:12863   /17:6749    /18:11504   
/19:23775   /20:33619   /21:36378   /22:51935   /23:45220   /24:257403  
/25:795     /26:942     /27:434     /28:12      /29:18      /30:7       
/31:1       /32:38      

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

  ASN   No of nets  Total ann.   Description
18566     2003          2048      MegaPath Corporation
 6389     1696          3020      BellSouth.net Inc.
36998     1599          1638      Sudanese Mobile Telephone (ZA
22773     1560          2320      Cox Communications Inc.
 8402     1371          1690      OJSC "Vimpelcom"
30036     1223          1385      Mediacom Communications Corp
11492     1174          1221      CABLE ONE, INC.
 1785     1166          2180      PaeTec Communications, Inc.
 6983     1040          1322      ITC^Deltacom
34984      999          1472      TELLCOM ILETISIM HIZMETLERI A

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

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

   1:988       2:760       3:3         4:16        5:910       6:19     
   8:658      12:1858     13:4        14:961      15:9        16:3      
  17:27       18:21       20:35       23:762      24:1722     27:1766   
  31:1526     32:44       33:2        34:5        36:118      37:1803   
  38:927      39:4        40:193      41:3091     42:247      44:18     
  46:2146     47:15       49:673      50:919      52:12       54:45     
  55:8        57:26       58:1168     59:596      60:380      61:1524   
  62:1258     63:1981     64:4353     65:2249     66:4204     67:2066   
  68:1030     69:3303     70:839      71:471      72:1956     74:2668   
  75:312      76:394      77:1199     78:989      79:681      80:1298   
  81:1124     82:665      83:743      84:746      85:1287     86:417    
  87:1071     88:522      89:1727     90:151      91:5751     92:659    
  93:1689     94:2030     95:1498     96:535      97:352      98:1069   
  99:41      100:50      101:791     103:4386    105:534     106:166    
 107:546     108:547     109:2007    110:997     111:1254    112:634    
 113:825     114:873     115:1118    116:1039    117:873     118:1322   
 119:1293    120:365     121:791     122:1920    123:1263    124:1457   
 125:1452    128:639     129:242     130:360     131:661     132:357    
 133:157     134:319     135:74      136:248     137:301     138:349    
 139:159     140:212     141:362     142:559     143:429     144:497    
 145:97      146:596     147:459     148:792     149:342     150:161    
 151:580     152:420     153:204     154:93      155:461     156:334    
 157:368     158:224     159:863     160:353     161:478     162:1218   
 163:221     164:689     165:612     166:281     167:600     168:1026   
 169:123     170:1224    171:195     172:20      173:1627    174:680    
 175:603     176:1469    177:2810    178:1967    179:562     180:1640   
 181:976     182:1461    183:491     184:698     185:1367    186:2743   
 187:1455    188:1872    189:1300    190:7438    191:107     192:7146   
 193:5447    194:4014    195:3348    196:1347    197:1112    198:4959   
 199:5594    200:6048    201:2687    202:8968    203:8888    204:4659   
 205:2666    206:2946    207:2902    208:3972    209:3726    210:3072   
 211:1698    212:2216    213:2019    214:895     215:84      216:5510   
 217:1688    218:565     219:321     220:1296    221:595     222:342    
 223:605    

End of report



More information about the NANOG mailing list