[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jan 31 18:15:39 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 01 Feb, 2014

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

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

BGP routing table entries examined:                              480599
    Prefixes after maximum aggregation:                          191158
    Deaggregation factor:                                          2.51
    Unique aggregates announced to Internet:                     238143
Total ASes present in the Internet Routing Table:                 46049
    Prefixes per ASN:                                             10.44
Origin-only ASes present in the Internet Routing Table:           35565
Origin ASes announcing only one prefix:                           16380
Transit ASes present in the Internet Routing Table:                6011
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:              1925
    Unregistered ASNs in the Routing Table:                         498
Number of 32-bit ASNs allocated by the RIRs:                       5868
Number of 32-bit ASNs visible in the Routing Table:                4473
Prefixes from 32-bit ASNs in the Routing Table:                   14209
Number of bogon 32-bit ASNs visible in the Routing Table:            12
Special use prefixes present in the Routing Table:                   12
Prefixes being announced from unallocated address space:            451
Number of addresses announced to Internet:                   2666406948
    Equivalent to 158 /8s, 238 /16s and 36 /24s
    Percentage of available address space announced:               72.0
    Percentage of allocated address space announced:               72.0
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               95.7
Total number of prefixes smaller than registry allocations:      167446

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

Prefixes being announced by APNIC Region ASes:                   114261
    Total APNIC prefixes after maximum aggregation:               34379
    APNIC Deaggregation factor:                                    3.32
Prefixes being announced from the APNIC address blocks:          116741
    Unique aggregates announced from the APNIC address blocks:    49004
APNIC Region origin ASes present in the Internet Routing Table:    4887
    APNIC Prefixes per ASN:                                       23.89
APNIC Region origin ASes announcing only one prefix:               1222
APNIC Region transit ASes present in the Internet Routing Table:    843
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         28
Number of APNIC region 32-bit ASNs visible in the Routing Table:    817
Number of APNIC addresses announced to Internet:              730362496
    Equivalent to 43 /8s, 136 /16s and 114 /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:                    164828
    Total ARIN prefixes after maximum aggregation:                82581
    ARIN Deaggregation factor:                                     2.00
Prefixes being announced from the ARIN address blocks:           166122
    Unique aggregates announced from the ARIN address blocks:     77099
ARIN Region origin ASes present in the Internet Routing Table:    16105
    ARIN Prefixes per ASN:                                        10.31
ARIN Region origin ASes announcing only one prefix:                6084
ARIN Region transit ASes present in the Internet Routing Table:    1678
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:      60
Number of ARIN addresses announced to Internet:              1077860096
    Equivalent to 64 /8s, 62 /16s and 215 /24s
    Percentage of available ARIN address space announced:          57.0

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:                    121242
    Total RIPE prefixes after maximum aggregation:                61587
    RIPE Deaggregation factor:                                     1.97
Prefixes being announced from the RIPE address blocks:           125111
    Unique aggregates announced from the RIPE address blocks:     79912
RIPE Region origin ASes present in the Internet Routing Table:    17629
    RIPE Prefixes per ASN:                                         7.10
RIPE Region origin ASes announcing only one prefix:                8328
RIPE Region transit ASes present in the Internet Routing Table:    2852
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:    2602
Number of RIPE addresses announced to Internet:               656540036
    Equivalent to 39 /8s, 34 /16s and 1 /24s
    Percentage of available RIPE address space announced:          95.4

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, 196608-200191
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:                   53911
    Total LACNIC prefixes after maximum aggregation:               9944
    LACNIC Deaggregation factor:                                   5.42
Prefixes being announced from the LACNIC address blocks:          59451
    Unique aggregates announced from the LACNIC address blocks:   27614
LACNIC Region origin ASes present in the Internet Routing Table:   2061
    LACNIC Prefixes per ASN:                                      28.85
LACNIC Region origin ASes announcing only one prefix:               545
LACNIC Region transit ASes present in the Internet Routing Table:   408
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:   985
Number of LACNIC addresses announced to Internet:             148746272
    Equivalent to 8 /8s, 221 /16s and 176 /24s
    Percentage of available LACNIC address space announced:        88.7

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:                  11973
    Total AfriNIC prefixes after maximum aggregation:              2627
    AfriNIC Deaggregation factor:                                  4.56
Prefixes being announced from the AfriNIC address blocks:         12723
    Unique aggregates announced from the AfriNIC address blocks:   4137
AfriNIC Region origin ASes present in the Internet Routing Table:   698
    AfriNIC Prefixes per ASN:                                     18.23
AfriNIC Region origin ASes announcing only one prefix:              201
AfriNIC Region transit ASes present in the Internet Routing Table:  151
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    9
Number of AfriNIC addresses announced to Internet:             50338048
    Equivalent to 3 /8s, 0 /16s and 25 /24s
    Percentage of available AfriNIC address space announced:       50.0

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     2955      11559         949   Korea Telecom
17974     2742        902          88   PT Telekomunikasi Indonesia
 7545     2151        320         116   TPG Telecom Limited
 4755     1814        392         193   TATA Communications formerly 
 9829     1590       1283          39   National Internet Backbone
 9583     1301        102         534   Sify Limited
 7552     1235       1080          13   Viettel Corporation
 9498     1215        309          69   BHARTI Airtel Ltd.
 4808     1168       2117         354   CNCGROUP IP network China169 
24560     1094        382         167   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     3026       3688          53   BellSouth.net Inc.
22773     2326       2940         139   Cox Communications Inc.
 1785     2156        689         129   PaeTec Communications, Inc.
18566     2048        379         178   MegaPath Corporation
20115     1684       1664         580   Charter Communications
 4323     1632       1090         410   tw telecom holdings, inc.
  701     1498      11173         768   MCI Communications Services, 
30036     1372        296         567   Mediacom Communications Corp
 6983     1296        756         581   ITC^Deltacom
 7018     1295      18004         844   AT&T Services, 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
 8402     1785        544          16   OJSC "Vimpelcom"
34984     1398        244         227   TELLCOM ILETISIM HIZMETLERI A
20940     1215        453         915   Akamai International B.V.
13188     1046        100          20   TOV "Bank-Inform"
31148     1014         45          21   Freenet Ltd.
 6849      862        363          38   JSC "Ukrtelecom"
 8551      825        370          41   Bezeq International-Ltd
 6830      772       2327         425   Liberty Global Operations B.V
12479      697        797          55   France Telecom Espana SA
35228      553        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     3330       1878          78   NET Serviços de Comunicação S
10620     2712        437         222   Telmex Colombia S.A.
18881     1837        909          21   Global Village Telecom
 7303     1745       1165         220   Telecom Argentina S.A.
 8151     1375       2882         426   Uninet S.A. de C.V.
11830      869        364          15   Instituto Costarricense de El
 6503      866        434          60   Axtel, S.A.B. de C.V.
 7738      847       1626          39   Telemar Norte Leste S.A.
27947      837         93          94   Telconet S.A
 6147      767        373          27   Telefonica del Peru S.A.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
36998     1810        240           6   Sudanese Mobile Telephone (ZA
24863      912        380          28   Link Egypt (Link.NET)
 6713      602        685          28   Office National des Postes et
 8452      478        956           9   TE-AS
24835      298        144           9   Vodafone Data
36992      271        783          24   ETISALAT MISR
 3741      246        921         208   Internet Solutions
29571      246         21          14   Cote d'Ivoire Telecom
15706      219         32           6   Sudatel (Sudan Telecom Co. Lt
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     3330       1878          78   NET Serviços de Comunicação S
 6389     3026       3688          53   BellSouth.net Inc.
 4766     2955      11559         949   Korea Telecom
17974     2742        902          88   PT Telekomunikasi Indonesia
10620     2712        437         222   Telmex Colombia S.A.
22773     2326       2940         139   Cox Communications Inc.
 1785     2156        689         129   PaeTec Communications, Inc.
 7545     2151        320         116   TPG Telecom Limited
18566     2048        379         178   MegaPath Corporation
18881     1837        909          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      3026        2973      BellSouth.net Inc.
17974      2742        2654      PT Telekomunikasi Indonesia
10620      2712        2490      Telmex Colombia S.A.
22773      2326        2187      Cox Communications Inc.
 7545      2151        2035      TPG Telecom Limited
 1785      2156        2027      PaeTec Communications, Inc.
 4766      2955        2006      Korea Telecom
18566      2048        1870      MegaPath Corporation
18881      1837        1816      Global Village Telecom
36998      1810        1804      Sudanese Mobile Telephone (ZA

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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
100.88.0.0/16         6697     Republican Unitary Telecommun
100.89.0.0/16         6697     Republican Unitary Telecommun
100.90.0.0/16         6697     Republican Unitary Telecommun
100.91.0.0/16         6697     Republican Unitary Telecommun
100.92.0.0/16         6697     Republican Unitary Telecommun
100.93.0.0/16         6697     Republican Unitary Telecommun
100.94.0.0/16         6697     Republican Unitary Telecommun
100.95.0.0/16         6697     Republican Unitary Telecommun
100.104.0.0/13        6697     Republican Unitary Telecommun
100.112.0.0/13        6697     Republican Unitary Telecommun

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

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

Network            Origin AS  Description
27.100.7.0/24        56096     >>UNKNOWN<<
41.73.1.0/24         37004     Suburban Telecom
41.73.2.0/24         37004     Suburban Telecom
41.73.10.0/24        37004     Suburban Telecom
41.73.11.0/24        37004     Suburban Telecom
41.73.12.0/24        37004     Suburban Telecom
41.73.13.0/24        37004     Suburban Telecom
41.73.15.0/24        37004     Suburban Telecom
41.73.16.0/24        37004     Suburban Telecom
41.73.18.0/24        37004     Suburban Telecom

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      /11:92      /12:253     
/13:477     /14:945     /15:1652    /16:12897   /17:6812    /18:11503   
/19:23726   /20:33431   /21:36070   /22:51224   /23:44601   /24:254651  
/25:791     /26:940     /27:428     /28:12      /29:16      /30:8       
/31:0       /32:11      

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

  ASN   No of nets  Total ann.   Description
18566     2003          2048      MegaPath Corporation
36998     1771          1810      Sudanese Mobile Telephone (ZA
 6389     1697          3026      BellSouth.net Inc.
22773     1570          2326      Cox Communications Inc.
 8402     1466          1785      OJSC "Vimpelcom"
30036     1212          1372      Mediacom Communications Corp
11492     1162          1199      CABLE ONE, INC.
 1785     1161          2156      PaeTec Communications, Inc.
 6983     1037          1296      ITC^Deltacom
22561      971          1251      CenturyTel Internet Holdings,

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

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

   1:945       2:788       3:3         4:16        5:886       6:21     
   8:649      12:1860     13:3        14:923      15:9        16:3      
  17:24       18:19       20:36       23:667      24:1725     27:1733   
  31:1536     32:44       33:2        34:5        36:118      37:1884   
  38:922      39:4        40:189      41:3266     42:244      44:14     
  46:2153     47:12       49:664      50:898      52:12       54:44     
  55:6        56:3        57:26       58:1142     59:590      60:370    
  61:1512     62:1205     63:1958     64:4382     65:2301     66:4152   
  67:2037     68:1025     69:3294     70:881      71:471      72:2013   
  74:2657     75:313      76:307      77:1145     78:1010     79:694    
  80:1311     81:1100     82:674      83:744      84:724      85:1262   
  86:467      87:1028     88:521      89:1730     90:146      91:5725   
  92:672      93:1643     94:2075     95:1482     96:536      97:351    
  98:1072     99:39      100:32      101:759     103:4094    105:535    
 106:143     107:418     108:537     109:2060    110:987     111:1231   
 112:615     113:819     114:778     115:1080    116:1024    117:831    
 118:1243    119:1305    120:323     121:784     122:1915    123:1260   
 124:1394    125:1445    128:633     129:240     130:360     131:661    
 132:351     133:156     134:319     135:73      136:280     137:297    
 138:350     139:153     140:205     141:355     142:551     143:418    
 144:501     145:99      146:595     147:415     148:781     149:343    
 150:151     151:528     152:420     153:208     154:82      155:518    
 156:317     157:420     158:293     159:843     160:355     161:466    
 162:1076    163:222     164:672     165:593     166:274     167:643    
 168:1045    169:124     170:1172    171:196     172:13      173:1621   
 174:697     175:568     176:1417    177:2661    178:1962    179:412    
 180:1621    181:958     182:1420    183:495     184:638     185:1219   
 186:2776    187:1443    188:2010    189:1269    190:7397    191:40     
 192:7090    193:5447    194:4003    195:3368    196:1356    197:1092   
 198:4868    199:5539    200:5972    201:2508    202:9030    203:8911   
 204:4501    205:2657    206:2942    207:2820    208:3971    209:3658   
 210:3104    211:1641    212:2222    213:1983    214:876     215:84     
 216:5491    217:1687    218:604     219:323     220:1270    221:593    
 222:334     223:586    

End of report


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