Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Dec 27 18:12:26 UTC 2013


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 28 Dec, 2013

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

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

BGP routing table entries examined:                              476821
    Prefixes after maximum aggregation:                          190476
    Deaggregation factor:                                          2.50
    Unique aggregates announced to Internet:                     236639
Total ASes present in the Internet Routing Table:                 45824
    Prefixes per ASN:                                             10.41
Origin-only ASes present in the Internet Routing Table:           35504
Origin ASes announcing only one prefix:                           16271
Transit ASes present in the Internet Routing Table:                5971
Transit-only ASes present in the Internet Routing Table:            176
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:              2660
    Unregistered ASNs in the Routing Table:                         629
Number of 32-bit ASNs allocated by the RIRs:                       5609
Number of 32-bit ASNs visible in the Routing Table:                4349
Prefixes from 32-bit ASNs in the Routing Table:                   13678
Number of bogon 32-bit ASNs visible in the Routing Table:             1
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:           1520
Number of addresses announced to Internet:                   2661350716
    Equivalent to 158 /8s, 160 /16s and 253 /24s
    Percentage of available address space announced:               71.9
    Percentage of allocated address space announced:               71.9
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               95.4
Total number of prefixes smaller than registry allocations:      166420

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

Prefixes being announced by APNIC Region ASes:                   113329
    Total APNIC prefixes after maximum aggregation:               34207
    APNIC Deaggregation factor:                                    3.31
Prefixes being announced from the APNIC address blocks:          115615
    Unique aggregates announced from the APNIC address blocks:    48424
APNIC Region origin ASes present in the Internet Routing Table:    4874
    APNIC Prefixes per ASN:                                       23.72
APNIC Region origin ASes announcing only one prefix:               1207
APNIC Region transit ASes present in the Internet Routing Table:    836
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:    800
Number of APNIC addresses announced to Internet:              729291968
    Equivalent to 43 /8s, 120 /16s and 28 /24s
    Percentage of available APNIC address space announced:         85.2

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:                    163452
    Total ARIN prefixes after maximum aggregation:                81927
    ARIN Deaggregation factor:                                     2.00
Prefixes being announced from the ARIN address blocks:           164176
    Unique aggregates announced from the ARIN address blocks:     75931
ARIN Region origin ASes present in the Internet Routing Table:    15934
    ARIN Prefixes per ASN:                                        10.30
ARIN Region origin ASes announcing only one prefix:                5997
ARIN Region transit ASes present in the Internet Routing Table:    1667
Average ARIN Region AS path length visible:                         4.1
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:      50
Number of ARIN addresses announced to Internet:              1075567744
    Equivalent to 64 /8s, 27 /16s and 220 /24s
    Percentage of available ARIN address space announced:          56.9

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:                    120144
    Total RIPE prefixes after maximum aggregation:                61394
    RIPE Deaggregation factor:                                     1.96
Prefixes being announced from the RIPE address blocks:           123813
    Unique aggregates announced from the RIPE address blocks:     79385
RIPE Region origin ASes present in the Internet Routing Table:    17585
    RIPE Prefixes per ASN:                                         7.04
RIPE Region origin ASes announcing only one prefix:                8311
RIPE Region transit ASes present in the Internet Routing Table:    2835
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          53
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2547
Number of RIPE addresses announced to Internet:               655655812
    Equivalent to 39 /8s, 20 /16s and 131 /24s
    Percentage of available RIPE address space announced:          95.3

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:                   53629
    Total LACNIC prefixes after maximum aggregation:              10074
    LACNIC Deaggregation factor:                                   5.32
Prefixes being announced from the LACNIC address blocks:          59123
    Unique aggregates announced from the LACNIC address blocks:   27515
LACNIC Region origin ASes present in the Internet Routing Table:   2060
    LACNIC Prefixes per ASN:                                      28.70
LACNIC Region origin ASes announcing only one prefix:               548
LACNIC Region transit ASes present in the Internet Routing Table:   405
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        35
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   944
Number of LACNIC addresses announced to Internet:             147391160
    Equivalent to 8 /8s, 201 /16s and 2 /24s
    Percentage of available LACNIC address space announced:        87.9

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:                  11810
    Total AfriNIC prefixes after maximum aggregation:              2621
    AfriNIC Deaggregation factor:                                  4.51
Prefixes being announced from the AfriNIC address blocks:         12574
    Unique aggregates announced from the AfriNIC address blocks:   4208
AfriNIC Region origin ASes present in the Internet Routing Table:   699
    AfriNIC Prefixes per ASN:                                     17.99
AfriNIC Region origin ASes announcing only one prefix:              208
AfriNIC Region transit ASes present in the Internet Routing Table:  146
Average AfriNIC Region AS path length visible:                      4.6
    Max AfriNIC Region AS path length visible:                       24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    8
Number of AfriNIC addresses announced to Internet:             48542656
    Equivalent to 2 /8s, 228 /16s and 179 /24s
    Percentage of available AfriNIC address space announced:       48.2

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     2946      11558         952   Korea Telecom
17974     2732        902          88   PT Telekomunikasi Indonesia
 7545     2121        319         112   TPG Telecom Limited
 4755     1810        392         191   TATA Communications formerly 
 9829     1559       1251          42   National Internet Backbone
 9583     1293        100         537   Sify Limited
 9498     1235        309          71   BHARTI Airtel Ltd.
 7552     1219       1080          13   Viettel Corporation
 4808     1138       2120         346   CNCGROUP IP network China169 
24560     1098        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     3027       3688          53   BellSouth.net Inc.
22773     2320       2939         139   Cox Communications Inc.
 1785     2146        686         131   PaeTec Communications, Inc.
18566     2050        379         178   MegaPath Corporation
20115     1682       1664         594   Charter Communications
 4323     1629       1081         412   tw telecom holdings, inc.
  701     1507      11144         778   MCI Communications Services, 
30036     1375        309         574   Mediacom Communications Corp
 7018     1309      17746         848   AT&T Services, Inc.
 6983     1295        756         580   ITC^Deltacom

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     1868        544          16   OJSC "Vimpelcom"
34984     1359        243         225   TELLCOM ILETISIM HIZMETLERI A
20940     1210        456         913   Akamai International B.V.
31148     1012         45          20   Freenet Ltd.
13188      919         99          41   TOV "Bank-Inform"
 6849      860        363          38   JSC "Ukrtelecom"
 8551      848        370          38   Bezeq International-Ltd
 6830      771       2327         424   Liberty Global Operations B.V
12479      685        798          53   France Telecom Espana SA
35228      551        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     3420       1839         100   NET Serviços de Comunicação S
10620     2691        435         209   Telmex Colombia S.A.
18881     1789        908          20   Global Village Telecom
 7303     1743       1163         230   Telecom Argentina S.A.
 8151     1373       2857         430   Uninet S.A. de C.V.
11830      868        364          15   Instituto Costarricense de El
27947      858         93          89   Telconet S.A
 7738      813       1562          37   Telemar Norte Leste S.A.
 6503      791        434          60   Axtel, S.A.B. de C.V.
 6147      786        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     1819        112           5   Sudanese Mobile Telephone (ZA
24863      890        338          26   Link Egypt (Link.NET)
 6713      600        653          27   Office National des Postes et
 8452      420        956           9   TE-AS
24835      299        144           9   Vodafone Data
 3741      247        921         209   Internet Solutions
29571      240         21          14   Cote d'Ivoire Telecom
36992      224        501          29   ETISALAT MISR
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     3420       1839         100   NET Serviços de Comunicação S
 6389     3027       3688          53   BellSouth.net Inc.
 4766     2946      11558         952   Korea Telecom
17974     2732        902          88   PT Telekomunikasi Indonesia
10620     2691        435         209   Telmex Colombia S.A.
22773     2320       2939         139   Cox Communications Inc.
 1785     2146        686         131   PaeTec Communications, Inc.
 7545     2121        319         112   TPG Telecom Limited
18566     2050        379         178   MegaPath Corporation
 8402     1868        544          16   OJSC "Vimpelcom"

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      3027        2974      BellSouth.net Inc.
17974      2732        2644      PT Telekomunikasi Indonesia
10620      2691        2482      Telmex Colombia S.A.
22773      2320        2181      Cox Communications Inc.
 1785      2146        2015      PaeTec Communications, Inc.
 7545      2121        2009      TPG Telecom Limited
 4766      2946        1994      Korea Telecom
18566      2050        1872      MegaPath Corporation
 8402      1868        1852      OJSC "Vimpelcom"
36998      1819        1814      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
62828   UNALLOCATED  8.21.130.0/24         4323       tw telecom holdings,
62850   UNALLOCATED  8.25.147.0/24        46887       Lightower Fiber Netw
20260   UNALLOCATED  8.25.160.0/24         3356       Level 3 Communicatio
20260   UNALLOCATED  8.25.161.0/24         3356       Level 3 Communicatio

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

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

Network            Origin AS  Description
23.90.128.0/18       27418     OUTOFWALL INC.
23.91.0.0/19         40676     Psychz Networks
23.91.14.0/24        40676     Psychz Networks
23.91.32.0/19        36315     Servpac Inc.
23.91.80.0/20        21560     Netstream Communications, LLC
23.91.96.0/20        37958     Beijing Blue I.T Technologies
23.91.112.0/21       32475     SingleHop
23.91.120.0/21       36351     SoftLayer Technologies Inc.
23.91.160.0/19       36493     FIBERNETICS CORPORATION
23.91.160.0/22       36493     FIBERNETICS CORPORATION

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       /9:11      /10:31      /11:92      /12:253     
/13:473     /14:939     /15:1639    /16:12867   /17:6772    /18:11420   
/19:23245   /20:33090   /21:35784   /22:50691   /23:44145   /24:253000  
/25:803     /26:956     /27:436     /28:47      /29:71      /30:26      
/31:0       /32:14      

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

  ASN   No of nets  Total ann.   Description
18566     2005          2050      MegaPath Corporation
36998     1786          1819      Sudanese Mobile Telephone (ZA
 6389     1699          3027      BellSouth.net Inc.
22773     1564          2320      Cox Communications Inc.
 8402     1556          1868      OJSC "Vimpelcom"
30036     1216          1375      Mediacom Communications Corp
 1785     1163          2146      PaeTec Communications, Inc.
11492     1148          1185      CABLE ONE, INC.
 6983     1037          1295      ITC^Deltacom
22561      977          1252      CenturyTel Internet Holdings,

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

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

   1:927       2:858       3:3         4:16        5:839       6:21     
   8:637      12:1878     13:3        14:899      15:9        16:3      
  17:20       18:19       20:36       23:638      24:1752     27:1705   
  31:1518     32:46       33:2        34:5        36:105      37:1933   
  38:919      39:3        40:182      41:3336     42:243      44:14     
  46:2110     47:10       49:706      50:841      52:12       54:44     
  55:5        56:4        57:26       58:1138     59:590      60:370    
  61:1495     62:1232     63:1980     64:4380     65:2329     66:4133   
  67:2101     68:1086     69:3311     70:909      71:511      72:2023   
  74:2585     75:322      76:305      77:1184     78:1030     79:678    
  80:1278     81:1077     82:644      83:755      84:640      85:1232   
  86:402      87:1016     88:521      89:1576     90:150      91:5738   
  92:620      93:1618     94:2100     95:1483     96:532      97:351    
  98:1085     99:41      100:32      101:693     103:3882    105:534    
 106:144     107:258     108:548     109:2036    110:975     111:1135   
 112:613     113:816     114:763     115:1049    116:1018    117:832    
 118:1249    119:1297    120:340     121:772     122:1884    123:1289   
 124:1395    125:1455    128:655     129:234     130:357     131:667    
 132:343     133:159     134:312     135:73      136:277     137:251    
 138:354     139:172     140:202     141:349     142:553     143:405    
 144:497     145:92      146:566     147:428     148:790     149:359    
 150:153     151:484     152:410     153:205     154:49      155:520    
 156:314     157:418     158:287     159:808     160:356     161:459    
 162:959     163:231     164:663     165:582     166:281     167:641    
 168:1038    169:123     170:1150    171:185     172:12      173:1705   
 174:675     175:550     176:1359    177:2637    178:1911    179:340    
 180:1609    181:915     182:1422    183:477     184:630     185:1170   
 186:2790    187:1445    188:1952    189:1259    190:7313    191:16     
 192:7091    193:5442    194:4030    195:3408    196:1345    197:1085   
 198:4814    199:5531    200:6059    201:2553    202:9013    203:8934   
 204:4536    205:2642    206:2909    207:2811    208:3951    209:3707   
 210:3076    211:1633    212:2171    213:1974    214:875     215:85     
 216:5427    217:1702    218:622     219:323     220:1267    221:587    
 222:348     223:564    

End of report



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