Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Nov 1 18:07:05 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 02 Nov, 2013

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

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

BGP routing table entries examined:                              470880
    Prefixes after maximum aggregation:                          189231
    Deaggregation factor:                                          2.49
    Unique aggregates announced to Internet:                     233598
Total ASes present in the Internet Routing Table:                 45368
    Prefixes per ASN:                                             10.38
Origin-only ASes present in the Internet Routing Table:           35324
Origin ASes announcing only one prefix:                           16267
Transit ASes present in the Internet Routing Table:                5954
Transit-only ASes present in the Internet Routing Table:            161
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      35
    Max AS path prepend of ASN ( 55644)                              31
Prefixes from unregistered ASNs in the Routing Table:               720
    Unregistered ASNs in the Routing Table:                         194
Number of 32-bit ASNs allocated by the RIRs:                       5284
Number of 32-bit ASNs visible in the Routing Table:                4090
Prefixes from 32-bit ASNs in the Routing Table:                   12675
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            889
Number of addresses announced to Internet:                   2653744084
    Equivalent to 158 /8s, 44 /16s and 235 /24s
    Percentage of available address space announced:               71.7
    Percentage of allocated address space announced:               71.7
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               95.1
Total number of prefixes smaller than registry allocations:      164648

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

Prefixes being announced by APNIC Region ASes:                   111522
    Total APNIC prefixes after maximum aggregation:               33881
    APNIC Deaggregation factor:                                    3.29
Prefixes being announced from the APNIC address blocks:          113638
    Unique aggregates announced from the APNIC address blocks:    47281
APNIC Region origin ASes present in the Internet Routing Table:    4884
    APNIC Prefixes per ASN:                                       23.27
APNIC Region origin ASes announcing only one prefix:               1214
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:                         35
Number of APNIC region 32-bit ASNs visible in the Routing Table:    721
Number of APNIC addresses announced to Internet:              729894080
    Equivalent to 43 /8s, 129 /16s and 76 /24s
    Percentage of available APNIC address space announced:         85.3

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:                    162649
    Total ARIN prefixes after maximum aggregation:                81501
    ARIN Deaggregation factor:                                     2.00
Prefixes being announced from the ARIN address blocks:           163562
    Unique aggregates announced from the ARIN address blocks:     75922
ARIN Region origin ASes present in the Internet Routing Table:    15916
    ARIN Prefixes per ASN:                                        10.28
ARIN Region origin ASes announcing only one prefix:                6011
ARIN Region transit ASes present in the Internet Routing Table:    1668
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:      32
Number of ARIN addresses announced to Internet:              1073461888
    Equivalent to 63 /8s, 251 /16s and 186 /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:                    119308
    Total RIPE prefixes after maximum aggregation:                61150
    RIPE Deaggregation factor:                                     1.95
Prefixes being announced from the RIPE address blocks:           122943
    Unique aggregates announced from the RIPE address blocks:     78932
RIPE Region origin ASes present in the Internet Routing Table:    17520
    RIPE Prefixes per ASN:                                         7.02
RIPE Region origin ASes announcing only one prefix:                8296
RIPE Region transit ASes present in the Internet Routing Table:    2844
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2453
Number of RIPE addresses announced to Internet:               656599396
    Equivalent to 39 /8s, 34 /16s and 233 /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, 196608-200191
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:                   52561
    Total LACNIC prefixes after maximum aggregation:               9998
    LACNIC Deaggregation factor:                                   5.26
Prefixes being announced from the LACNIC address blocks:          57608
    Unique aggregates announced from the LACNIC address blocks:   26745
LACNIC Region origin ASes present in the Internet Routing Table:   2032
    LACNIC Prefixes per ASN:                                      28.35
LACNIC Region origin ASes announcing only one prefix:               548
LACNIC Region transit ASes present in the Internet Routing Table:   388
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:   878
Number of LACNIC addresses announced to Internet:             142306864
    Equivalent to 8 /8s, 123 /16s and 110 /24s
    Percentage of available LACNIC address space announced:        84.8

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:                  11584
    Total AfriNIC prefixes after maximum aggregation:              2566
    AfriNIC Deaggregation factor:                                  4.51
Prefixes being announced from the AfriNIC address blocks:         12240
    Unique aggregates announced from the AfriNIC address blocks:   3973
AfriNIC Region origin ASes present in the Internet Routing Table:   672
    AfriNIC Prefixes per ASN:                                     18.21
AfriNIC Region origin ASes announcing only one prefix:              198
AfriNIC Region transit ASes present in the Internet Routing Table:  137
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:    6
Number of AfriNIC addresses announced to Internet:             48064000
    Equivalent to 2 /8s, 221 /16s and 102 /24s
    Percentage of available AfriNIC address space announced:       47.7

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     2937      11558         943   Korea Telecom (KIX)
17974     2711        903          89   PT TELEKOMUNIKASI INDONESIA
 7545     2101        319         111   TPG Internet Pty Ltd
 4755     1787        391         188   TATA Communications formerly 
 9829     1539       1242          48   BSNL National Internet Backbo
 9498     1210        309          74   BHARTI Airtel Ltd.
 9583     1187         90         513   Sify Limited
 4808     1158       2128         342   CNCGROUP IP network: China169
 7552     1158       1080          13   Vietel Corporation
24560     1092        380         165   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     3056       3688          56   BellSouth.net Inc.
22773     2188       2939         138   Cox Communications, Inc.
18566     2058        379         179   MegaPath Corporation
 1785     2036        684         130   PaeTec Communications, Inc.
20115     1679       1653         610   Charter Communications 
 4323     1627       1102         420   Time Warner Telecom
  701     1507      11145         782   MCI Communications Services, 
30036     1382        312         580   Mediacom Communications Corp 
 7018     1333      17779         869   AT&T WorldNet Services
 6983     1293        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     1835        544          17   OJSC "Vimpelcom"
34984     1363        244         223   TELLCOM ILETISIM HIZMETLERI A
20940     1113        406         847   Akamai Technologies European 
31148     1005         44          18   FreeNet ISP
13188      888         99          49   TOV "Bank-Inform"
 6849      861        356          30   JSC UKRTELECOM,
 6830      771       2327         423   UPC Distribution Services
 8551      759        370          41   Bezeq International
12479      675        798          55   Uni2 Autonomous System
35228      542        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     3436       1783          83   NET Servicos de Comunicao S.A
10620     2640        428         242   TVCABLE BOGOTA 
 7303     1722       1144         233   Telecom Argentina Stet-France
18881     1538        844          20   Global Village Telecom 
 8151     1348       2840         416   UniNet S.A. de C.V. 
11830      866        364          15   Instituto Costarricense de El
27947      846         93          92   Telconet S.A
 6147      792        373          27   Telefonica Del Peru 
 6503      788        434          61   AVANTEL, S.A. 
 7738      780       1498          36   Telecomunicacoes da Bahia 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      884        338          30   LINKdotNET AS number
 6713      554        633          26   Itissalat Al-MAGHRIB
 8452      386        956           9   TEDATA
24835      294        144           9   RAYA Telecom - Egypt
 3741      259        921         216   The Internet Solution 
36992      227        501          29   Etisalat MISR
29571      224         17          12   Ci Telecom Autonomous system 
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     3436       1783          83   NET Servicos de Comunicao S.A
 6389     3056       3688          56   BellSouth.net Inc.
 4766     2937      11558         943   Korea Telecom (KIX)
17974     2711        903          89   PT TELEKOMUNIKASI INDONESIA
10620     2640        428         242   TVCABLE BOGOTA 
22773     2188       2939         138   Cox Communications, Inc.
 7545     2101        319         111   TPG Internet Pty Ltd
18566     2058        379         179   MegaPath Corporation
 1785     2036        684         130   PaeTec Communications, Inc.
36998     1854        112           5   Sudanese Mobile Telephone (ZA

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      3056        3000      BellSouth.net Inc.
17974      2711        2622      PT TELEKOMUNIKASI INDONESIA
10620      2640        2398      TVCABLE BOGOTA 
22773      2188        2050      Cox Communications, Inc.
 4766      2937        1994      Korea Telecom (KIX)
 7545      2101        1990      TPG Internet Pty Ltd
 1785      2036        1906      PaeTec Communications, Inc.
18566      2058        1879      MegaPath Corporation
36998      1854        1849      Sudanese Mobile Telephone (ZA
 8402      1835        1818      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
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
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
17300   UNALLOCATED  12.45.110.0/24         701       MCI Communications S
16476   UNALLOCATED  12.46.27.0/24         7018       AT&T WorldNet Servic
14764   UNALLOCATED  12.108.237.0/24       7018       AT&T WorldNet Servic

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.
23.90.192.0/18       36086     Broad Communications Technolo
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     Capital Technology Services G
23.91.96.0/20        40676     Psychz Networks 
23.91.112.0/21       32475     MidPhase Inc. 
23.91.160.0/19       36493     3757277 Canada Inc. (oa 295.c
23.91.160.0/22       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      /12:254     
/13:474     /14:920     /15:1628    /16:12847   /17:6742    /18:11318   
/19:22981   /20:32664   /21:35483   /22:50123   /23:43756   /24:249089  
/25:832     /26:988     /27:467     /28:50      /29:79      /30:21      
/31:0       /32:14      

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

  ASN   No of nets  Total ann.   Description
18566     2012          2058      MegaPath Corporation
36998     1819          1854      Sudanese Mobile Telephone (ZA
 6389     1709          3056      BellSouth.net Inc.
 8402     1533          1835      OJSC "Vimpelcom"
22773     1454          2188      Cox Communications, Inc.
30036     1230          1382      Mediacom Communications Corp 
11492     1200          1241      Cable One 
 1785     1086          2036      PaeTec Communications, Inc.
 6983     1034          1293      ITC^Deltacom 
22561      968          1245      Digital Teleport, Inc 

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

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

   1:878       2:829       3:3         4:17        5:1007      6:21     
   8:615      12:1893     13:3        14:891      15:11       16:3      
  17:18       18:19       20:21       23:510      24:1741     27:1608   
  31:1488     32:45       33:2        34:5        36:81       37:1886   
  38:921      39:4        40:181      41:3186     42:246      44:14     
  46:2029     47:10       49:682      50:844      52:12       54:42     
  55:4        56:2        57:26       58:1154     59:576      60:373    
  61:1468     62:1209     63:1985     64:4371     65:2345     66:4137   
  67:2100     68:1103     69:3299     70:873      71:489      72:2036   
  74:2561     75:328      76:306      77:1166     78:1069     79:644    
  80:1294     81:1017     82:673      83:632      84:587      85:1252   
  86:420      87:1008     88:562      89:1598     90:150      91:5647   
  92:611      93:1599     94:2015     95:1593     96:509      97:342    
  98:1045     99:42      100:31      101:621     103:3520    105:528    
 106:142     107:214     108:535     109:1914    110:958     111:1103   
 112:595     113:810     114:752     115:1057    116:998     117:836    
 118:1160    119:1286    120:365     121:751     122:1874    123:1255   
 124:1353    125:1432    128:649     129:229     130:333     131:666    
 132:359     133:157     134:553     135:67      136:279     137:269    
 138:350     139:177     140:193     141:336     142:540     143:398    
 144:496     145:87      146:513     147:397     148:771     149:367    
 150:158     151:587     152:413     153:205     154:51      155:491    
 156:285     157:424     158:282     159:771     160:359     161:459    
 162:817     163:225     164:630     165:583     166:258     167:632    
 168:1047    169:127     170:1131    171:182     172:25      173:1605   
 174:687     175:517     176:1275    177:2359    178:1939    179:195    
 180:1587    181:791     182:1345    183:455     184:664     185:987    
 186:2643    187:1481    188:1845    189:1267    190:7238    192:7088   
 193:5413    194:4035    195:3350    196:1322    197:1014    198:4750   
 199:5480    200:6093    201:2532    202:8963    203:8921    204:4527   
 205:2641    206:2843    207:2831    208:4006    209:3618    210:3010   
 211:1569    212:2123    213:1983    214:897     215:92      216:5389   
 217:1685    218:626     219:321     220:1280    221:567     222:327    
 223:509    

End of report




More information about the NANOG mailing list