Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Dec 6 18:08:07 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 07 Dec, 2013

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

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

BGP routing table entries examined:                              473989
    Prefixes after maximum aggregation:                          189922
    Deaggregation factor:                                          2.50
    Unique aggregates announced to Internet:                     235181
Total ASes present in the Internet Routing Table:                 45624
    Prefixes per ASN:                                             10.39
Origin-only ASes present in the Internet Routing Table:           35427
Origin ASes announcing only one prefix:                           16261
Transit ASes present in the Internet Routing Table:                5952
Transit-only ASes present in the Internet Routing Table:            171
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                     103
    Max AS path prepend of ASN ( 50404)                             101
Prefixes from unregistered ASNs in the Routing Table:              1033
    Unregistered ASNs in the Routing Table:                         289
Number of 32-bit ASNs allocated by the RIRs:                       5465
Number of 32-bit ASNs visible in the Routing Table:                4245
Prefixes from 32-bit ASNs in the Routing Table:                   13223
Number of bogon 32-bit ASNs visible in the Routing Table:             1
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:           1331
Number of addresses announced to Internet:                   2657192828
    Equivalent to 158 /8s, 97 /16s and 139 /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:               95.3
Total number of prefixes smaller than registry allocations:      165389

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

Prefixes being announced by APNIC Region ASes:                   112564
    Total APNIC prefixes after maximum aggregation:               34192
    APNIC Deaggregation factor:                                    3.29
Prefixes being announced from the APNIC address blocks:          114799
    Unique aggregates announced from the APNIC address blocks:    47947
APNIC Region origin ASes present in the Internet Routing Table:    4875
    APNIC Prefixes per ASN:                                       23.55
APNIC Region origin ASes announcing only one prefix:               1210
APNIC Region transit ASes present in the Internet Routing Table:    835
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:    775
Number of APNIC addresses announced to Internet:              728720576
    Equivalent to 43 /8s, 111 /16s and 100 /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:                    163081
    Total ARIN prefixes after maximum aggregation:                81731
    ARIN Deaggregation factor:                                     2.00
Prefixes being announced from the ARIN address blocks:           163820
    Unique aggregates announced from the ARIN address blocks:     75763
ARIN Region origin ASes present in the Internet Routing Table:    15926
    ARIN Prefixes per ASN:                                        10.29
ARIN Region origin ASes announcing only one prefix:                6000
ARIN Region transit ASes present in the Internet Routing Table:    1666
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:      41
Number of ARIN addresses announced to Internet:              1073321856
    Equivalent to 63 /8s, 249 /16s and 151 /24s
    Percentage of available ARIN address space announced:          56.8

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:                    119610
    Total RIPE prefixes after maximum aggregation:                61148
    RIPE Deaggregation factor:                                     1.96
Prefixes being announced from the RIPE address blocks:           123359
    Unique aggregates announced from the RIPE address blocks:     78944
RIPE Region origin ASes present in the Internet Routing Table:    17538
    RIPE Prefixes per ASN:                                         7.03
RIPE Region origin ASes announcing only one prefix:                8285
RIPE Region transit ASes present in the Internet Routing Table:    2830
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                         103
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2506
Number of RIPE addresses announced to Internet:               656022500
    Equivalent to 39 /8s, 26 /16s and 27 /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:                   53068
    Total LACNIC prefixes after maximum aggregation:              10006
    LACNIC Deaggregation factor:                                   5.30
Prefixes being announced from the LACNIC address blocks:          58322
    Unique aggregates announced from the LACNIC address blocks:   27386
LACNIC Region origin ASes present in the Internet Routing Table:   2046
    LACNIC Prefixes per ASN:                                      28.51
LACNIC Region origin ASes announcing only one prefix:               553
LACNIC Region transit ASes present in the Internet Routing Table:   393
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:   915
Number of LACNIC addresses announced to Internet:             146170648
    Equivalent to 8 /8s, 182 /16s and 99 /24s
    Percentage of available LACNIC address space announced:        87.1

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:                  11711
    Total AfriNIC prefixes after maximum aggregation:              2612
    AfriNIC Deaggregation factor:                                  4.48
Prefixes being announced from the AfriNIC address blocks:         12358
    Unique aggregates announced from the AfriNIC address blocks:   4091
AfriNIC Region origin ASes present in the Internet Routing Table:   694
    AfriNIC Prefixes per ASN:                                     17.81
AfriNIC Region origin ASes announcing only one prefix:              213
AfriNIC Region transit ASes present in the Internet Routing Table:  144
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:    8
Number of AfriNIC addresses announced to Internet:             48528448
    Equivalent to 2 /8s, 228 /16s and 124 /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     2955      11559         952   Korea Telecom (KIX)
17974     2721        902          88   PT TELEKOMUNIKASI INDONESIA
 7545     2112        319         110   TPG Internet Pty Ltd
 4755     1794        392         190   TATA Communications formerly 
 9829     1538       1244          47   BSNL National Internet Backbo
 9583     1321        102         543   Sify Limited
 9498     1218        309          72   BHARTI Airtel Ltd.
 7552     1169       1080          13   Vietel Corporation
 4808     1143       2119         337   CNCGROUP IP network: China169
24560     1098        382         166   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     3038       3688          53   BellSouth.net Inc.
22773     2296       2939         137   Cox Communications, Inc.
18566     2052        379         178   MegaPath Corporation
 1785     2048        686         131   PaeTec Communications, Inc.
20115     1684       1657         600   Charter Communications 
 4323     1638       1098         418   Time Warner Telecom
  701     1511      11144         782   MCI Communications Services, 
30036     1381        311         581   Mediacom Communications Corp 
 7018     1326      17779         865   AT&T WorldNet Services
 6983     1292        755         578   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     1926        544          16   OJSC "Vimpelcom"
34984     1368        244         224   TELLCOM ILETISIM HIZMETLERI A
20940     1189        450         893   Akamai Technologies European 
31148     1010         45          20   FreeNet ISP
13188      897         99          42   TOV "Bank-Inform"
 6849      855        363          39   JSC UKRTELECOM,
 8551      786        370          41   Bezeq International
 6830      755       2326         409   UPC Distribution Services
12479      679        798          53   Uni2 Autonomous System
35228      549        246          16   Avatar Broadband 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     3422       1829          94   NET Servicos de Comunicao S.A
10620     2687        435         198   Telmex Colombia S.A.
 7303     1735       1161         230   Telecom Argentina Stet-France
18881     1708        908          20   Global Village Telecom 
 8151     1367       2855         422   UniNet S.A. de C.V. 
11830      868        364          15   Instituto Costarricense de El
27947      851         93          89   Telconet S.A
 6147      793        373          27   Telefonica Del Peru 
 7738      780       1498          36   Telecomunicacoes da Bahia S.A
 6503      776        434          60   AVANTEL, 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
36998     1854        112           5   Sudanese Mobile Telephone (ZA
24863      872        338          26   LINKdotNET AS number
 6713      554        633          26   Itissalat Al-MAGHRIB
 8452      414        956           9   TEDATA
24835      297        144           9   RAYA Telecom - Egypt
 3741      247        921         209   The Internet Solution 
29571      228         21          13   Ci Telecom Autonomous system 
36992      222        501          29   Etisalat MISR
15706      219         32           6   Sudatel Internet Exchange Aut
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     3422       1829          94   NET Servicos de Comunicao S.A
 6389     3038       3688          53   BellSouth.net Inc.
 4766     2955      11559         952   Korea Telecom (KIX)
17974     2721        902          88   PT TELEKOMUNIKASI INDONESIA
10620     2687        435         198   Telmex Colombia S.A.
22773     2296       2939         137   Cox Communications, Inc.
 7545     2112        319         110   TPG Internet Pty Ltd
18566     2052        379         178   MegaPath Corporation
 1785     2048        686         131   PaeTec Communications, Inc.
 8402     1926        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      3038        2985      BellSouth.net Inc.
17974      2721        2633      PT TELEKOMUNIKASI INDONESIA
10620      2687        2489      Telmex Colombia S.A.
22773      2296        2159      Cox Communications, Inc.
 4766      2955        2003      Korea Telecom (KIX)
 7545      2112        2002      TPG Internet Pty Ltd
 1785      2048        1917      PaeTec Communications, Inc.
 8402      1926        1910      OJSC "Vimpelcom"
18566      2052        1874      MegaPath Corporation
36998      1854        1849      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
62828   UNALLOCATED  8.21.130.0/24         4323       Time Warner Telecom
62850   UNALLOCATED  8.25.147.0/24        46887       Lightower Fiber Netw
62734   UNALLOCATED  8.31.128.0/24         6939       Hurricane Electric 
62773   UNALLOCATED  8.35.180.0/22         3356       Level 3 Communicatio
15132   UNALLOCATED  12.9.150.0/24         7018       AT&T WorldNet Servic
62719   UNALLOCATED  12.27.130.0/24        4323       Time Warner Telecom
62861   UNALLOCATED  12.37.197.0/24        7018       AT&T WorldNet Servic
13317   UNALLOCATED  12.44.10.0/24         7018       AT&T WorldNet Servic
23502   UNALLOCATED  12.44.44.0/24         7018       AT&T WorldNet Servic
17300   UNALLOCATED  12.45.103.0/24         209       Qwest Communications

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

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

Prefix             Origin AS  Description
100.100.0.0/24        4847     China Networks Inter-Exchange

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

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

Network            Origin AS  Description
23.90.128.0/18       27418     OUTOFWALL INC.
23.91.0.0/19         40676     Psychz Networks
23.91.4.0/24         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     Capital Technology Services G
23.91.96.0/20        37958     ChinaCache Networks ASN
23.91.112.0/21       32475     MidPhase Inc. 
23.91.120.0/21       36351     SoftLayer Technologies Inc. 
23.91.160.0/19       36493     3757277 Canada Inc. (oa 295.c

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     
/13:476     /14:932     /15:1635    /16:12838   /17:6785    /18:11330   
/19:23161   /20:32947   /21:35652   /22:50197   /23:43974   /24:251235  
/25:830     /26:986     /27:452     /28:49      /29:73      /30:20      
/31:0       /32:14      

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

  ASN   No of nets  Total ann.   Description
18566     2007          2052      MegaPath Corporation
36998     1819          1854      Sudanese Mobile Telephone (ZA
 6389     1700          3038      BellSouth.net Inc.
 8402     1632          1926      OJSC "Vimpelcom"
22773     1548          2296      Cox Communications, Inc.
30036     1221          1381      Mediacom Communications Corp 
11492     1183          1224      Cable One 
 1785     1088          2048      PaeTec Communications, Inc.
 6983     1034          1292      ITC^Deltacom 
22561      964          1239      Digital Teleport, Inc 

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

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

   1:923       2:869       3:3         4:16        5:812       6:21     
   8:613      12:1878     13:3        14:899      15:11       16:3      
  17:19       18:19       20:25       23:616      24:1755     27:1700   
  31:1521     32:45       33:2        34:5        36:96       37:1945   
  38:918      39:5        40:181      41:3220     42:231      44:14     
  46:2073     47:10       49:700      50:864      52:12       54:44     
  55:5        56:4        57:26       58:1147     59:584      60:367    
  61:1495     62:1249     63:1973     64:4399     65:2333     66:4145   
  67:2109     68:1096     69:3297     70:909      71:504      72:2018   
  74:2580     75:324      76:304      77:1216     78:1016     79:670    
  80:1277     81:1055     82:630      83:753      84:590      85:1253   
  86:380      87:1039     88:548      89:1564     90:154      91:5716   
  92:620      93:1612     94:2118     95:1510     96:515      97:349    
  98:1130     99:41      100:33      101:686     103:3782    105:530    
 106:143     107:229     108:538     109:2008    110:976     111:1123   
 112:594     113:804     114:752     115:1045    116:1009    117:831    
 118:1221    119:1296    120:338     121:763     122:1871    123:1267   
 124:1386    125:1439    128:636     129:233     130:355     131:663    
 132:350     133:158     134:307     135:72      136:275     137:269    
 138:352     139:171     140:198     141:343     142:549     143:406    
 144:501     145:90      146:553     147:417     148:773     149:367    
 150:153     151:485     152:415     153:207     154:45      155:516    
 156:306     157:419     158:285     159:783     160:361     161:457    
 162:901     163:225     164:628     165:582     166:276     167:637    
 168:1039    169:124     170:1125    171:185     172:11      173:1626   
 174:667     175:540     176:1320    177:2480    178:1867    179:315    
 180:1600    181:886     182:1406    183:479     184:621     185:1102   
 186:2641    187:1453    188:1958    189:1253    190:7298    192:7085   
 193:5425    194:4032    195:3358    196:1343    197:1057    198:4758   
 199:5511    200:6069    201:2525    202:8976    203:8894    204:4537   
 205:2647    206:2892    207:2793    208:3957    209:3662    210:3080   
 211:1629    212:2177    213:1983    214:887     215:84      216:5427   
 217:1711    218:637     219:318     220:1267    221:587     222:332    
 223:521    

End of report



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