[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Nov 8 18:06:48 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 09 Nov, 2013

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

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

BGP routing table entries examined:                              471623
    Prefixes after maximum aggregation:                          189286
    Deaggregation factor:                                          2.49
    Unique aggregates announced to Internet:                     234004
Total ASes present in the Internet Routing Table:                 45399
    Prefixes per ASN:                                             10.39
Origin-only ASes present in the Internet Routing Table:           35335
Origin ASes announcing only one prefix:                           16258
Transit ASes present in the Internet Routing Table:                5944
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:               733
    Unregistered ASNs in the Routing Table:                         200
Number of 32-bit ASNs allocated by the RIRs:                       5316
Number of 32-bit ASNs visible in the Routing Table:                4120
Prefixes from 32-bit ASNs in the Routing Table:                   12912
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            991
Number of addresses announced to Internet:                   2655011864
    Equivalent to 158 /8s, 64 /16s and 68 /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:      164478

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

Prefixes being announced by APNIC Region ASes:                   111655
    Total APNIC prefixes after maximum aggregation:               33910
    APNIC Deaggregation factor:                                    3.29
Prefixes being announced from the APNIC address blocks:          113823
    Unique aggregates announced from the APNIC address blocks:    47461
APNIC Region origin ASes present in the Internet Routing Table:    4871
    APNIC Prefixes per ASN:                                       23.37
APNIC Region origin ASes announcing only one prefix:               1215
APNIC Region transit ASes present in the Internet Routing Table:    831
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:    726
Number of APNIC addresses announced to Internet:              730128832
    Equivalent to 43 /8s, 132 /16s and 225 /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:                    162974
    Total ARIN prefixes after maximum aggregation:                81671
    ARIN Deaggregation factor:                                     2.00
Prefixes being announced from the ARIN address blocks:           163805
    Unique aggregates announced from the ARIN address blocks:     75998
ARIN Region origin ASes present in the Internet Routing Table:    15923
    ARIN Prefixes per ASN:                                        10.29
ARIN Region origin ASes announcing only one prefix:                6002
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:      34
Number of ARIN addresses announced to Internet:              1073766528
    Equivalent to 64 /8s, 0 /16s and 96 /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:                    119126
    Total RIPE prefixes after maximum aggregation:                60986
    RIPE Deaggregation factor:                                     1.95
Prefixes being announced from the RIPE address blocks:           122772
    Unique aggregates announced from the RIPE address blocks:     78781
RIPE Region origin ASes present in the Internet Routing Table:    17512
    RIPE Prefixes per ASN:                                         7.01
RIPE Region origin ASes announcing only one prefix:                8292
RIPE Region transit ASes present in the Internet Routing Table:    2834
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          31
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2464
Number of RIPE addresses announced to Internet:               656685924
    Equivalent to 39 /8s, 36 /16s and 59 /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:                   52590
    Total LACNIC prefixes after maximum aggregation:               9987
    LACNIC Deaggregation factor:                                   5.27
Prefixes being announced from the LACNIC address blocks:          57800
    Unique aggregates announced from the LACNIC address blocks:   26931
LACNIC Region origin ASes present in the Internet Routing Table:   2037
    LACNIC Prefixes per ASN:                                      28.38
LACNIC Region origin ASes announcing only one prefix:               550
LACNIC Region transit ASes present in the Internet Routing Table:   394
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:   890
Number of LACNIC addresses announced to Internet:             142751604
    Equivalent to 8 /8s, 130 /16s and 55 /24s
    Percentage of available LACNIC address space announced:        85.1

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:                  11774
    Total AfriNIC prefixes after maximum aggregation:              2590
    AfriNIC Deaggregation factor:                                  4.55
Prefixes being announced from the AfriNIC address blocks:         12432
    Unique aggregates announced from the AfriNIC address blocks:   4033
AfriNIC Region origin ASes present in the Internet Routing Table:   677
    AfriNIC Prefixes per ASN:                                     18.36
AfriNIC Region origin ASes announcing only one prefix:              199
AfriNIC Region transit ASes present in the Internet Routing Table:  135
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:             48104192
    Equivalent to 2 /8s, 222 /16s and 3 /24s
    Percentage of available AfriNIC address space announced:       47.8

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     2934      11557         943   Korea Telecom (KIX)
17974     2711        903          89   PT TELEKOMUNIKASI INDONESIA
 7545     2112        319         111   TPG Internet Pty Ltd
 4755     1788        391         188   TATA Communications formerly 
 9829     1543       1240          41   BSNL National Internet Backbo
 9498     1210        309          73   BHARTI Airtel Ltd.
 9583     1190         91         513   Sify Limited
 7552     1158       1080          13   Vietel Corporation
 4808     1150       2124         339   CNCGROUP IP network: China169
24560     1094        380         163   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     3054       3688          56   BellSouth.net Inc.
22773     2192       2939         138   Cox Communications, Inc.
18566     2057        379         178   MegaPath Corporation
 1785     2038        684         131   PaeTec Communications, Inc.
20115     1683       1654         608   Charter Communications 
 4323     1630       1102         421   Time Warner Telecom
  701     1506      11146         782   MCI Communications Services, 
30036     1385        313         576   Mediacom Communications Corp 
 7018     1340      17795         873   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     1969        544          17   OJSC "Vimpelcom"
34984     1362        244         223   TELLCOM ILETISIM HIZMETLERI A
20940     1120        409         849   Akamai Technologies European 
31148     1005         44          18   FreeNet ISP
13188      887         99          48   TOV "Bank-Inform"
 6849      862        356          30   JSC UKRTELECOM,
 8551      783        370          41   Bezeq International
 6830      770       2327         422   UPC Distribution Services
12479      677        798          55   Uni2 Autonomous System
35228      544        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     3433       1788          85   NET Servicos de Comunicao S.A
10620     2648        429         233   TVCABLE BOGOTA 
 7303     1727       1146         232   Telecom Argentina Stet-France
18881     1548        908          20   Global Village Telecom 
 8151     1364       2853         414   UniNet S.A. de C.V. 
11830      866        364          15   Instituto Costarricense de El
27947      846         93          90   Telconet S.A
 6503      790        434          61   AVANTEL, S.A. 
 7738      780       1498          36   Telecomunicacoes da Bahia S.A
 3816      744        301         121   Empresa Nacional de Telecomun

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     1864        112           5   Sudanese Mobile Telephone (ZA
24863      892        338          30   LINKdotNET AS number
 6713      554        633          26   Itissalat Al-MAGHRIB
 8452      412        956           9   TEDATA
24835      295        144           9   RAYA Telecom - Egypt
 3741      256        921         214   The Internet Solution 
36992      229        501          29   Etisalat MISR
29571      224         17          12   Ci Telecom Autonomous system 
15706      221         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     3433       1788          85   NET Servicos de Comunicao S.A
 6389     3054       3688          56   BellSouth.net Inc.
 4766     2934      11557         943   Korea Telecom (KIX)
17974     2711        903          89   PT TELEKOMUNIKASI INDONESIA
10620     2648        429         233   TVCABLE BOGOTA 
22773     2192       2939         138   Cox Communications, Inc.
 7545     2112        319         111   TPG Internet Pty Ltd
18566     2057        379         178   MegaPath Corporation
 1785     2038        684         131   PaeTec Communications, Inc.
 8402     1969        544          17   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      3054        2998      BellSouth.net Inc.
17974      2711        2622      PT TELEKOMUNIKASI INDONESIA
10620      2648        2415      TVCABLE BOGOTA 
22773      2192        2054      Cox Communications, Inc.
 7545      2112        2001      TPG Internet Pty Ltd
 4766      2934        1991      Korea Telecom (KIX)
 8402      1969        1952      OJSC "Vimpelcom"
 1785      2038        1907      PaeTec Communications, Inc.
18566      2057        1879      MegaPath Corporation
36998      1864        1859      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         3356       Level 3 Communicatio
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

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 
23.91.4.0/24         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
23.91.112.0/21       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     /14:923     /15:1628    /16:12844   /17:6759    /18:11343   
/19:23128   /20:32795   /21:35564   /22:49817   /23:43790   /24:249692  
/25:833     /26:989     /27:474     /28:50      /29:80      /30:22      
/31:0       /32:14      

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

  ASN   No of nets  Total ann.   Description
18566     2011          2057      MegaPath Corporation
36998     1829          1864      Sudanese Mobile Telephone (ZA
 6389     1707          3054      BellSouth.net Inc.
 8402     1635          1969      OJSC "Vimpelcom"
22773     1455          2192      Cox Communications, Inc.
30036     1231          1385      Mediacom Communications Corp 
11492     1192          1232      Cable One 
 1785     1086          2038      PaeTec Communications, Inc.
 6983     1034          1293      ITC^Deltacom 
22561      972          1249      Digital Teleport, Inc 

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

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

   1:896       2:869       3:3         4:17        5:1024      6:21     
   8:617      12:1900     13:3        14:898      15:11       16:3      
  17:18       18:19       20:21       23:527      24:1742     27:1628   
  31:1498     32:45       33:2        34:5        36:82       37:1911   
  38:917      39:4        40:181      41:3249     42:263      44:14     
  46:2024     47:9        49:688      50:847      52:12       54:42     
  55:5        56:4        57:26       58:1161     59:576      60:375    
  61:1466     62:1231     63:1982     64:4356     65:2345     66:4148   
  67:2110     68:1107     69:3302     70:874      71:490      72:2040   
  74:2563     75:328      76:307      77:1165     78:1062     79:664    
  80:1299     81:1035     82:650      83:630      84:588      85:1253   
  86:381      87:1013     88:563      89:1558     90:149      91:5652   
  92:619      93:1606     94:2033     95:1608     96:512      97:345    
  98:1050     99:40      100:31      101:629     103:3547    105:527    
 106:142     107:215     108:536     109:1935    110:967     111:1115   
 112:593     113:810     114:752     115:1049    116:1001    117:828    
 118:1168    119:1278    120:364     121:750     122:1870    123:1261   
 124:1364    125:1438    128:675     129:229     130:331     131:665    
 132:365     133:157     134:556     135:72      136:279     137:269    
 138:350     139:177     140:198     141:332     142:542     143:398    
 144:491     145:88      146:529     147:410     148:778     149:368    
 150:138     151:587     152:409     153:206     154:51      155:458    
 156:289     157:420     158:278     159:776     160:360     161:459    
 162:838     163:226     164:634     165:586     166:259     167:634    
 168:1047    169:125     170:1120    171:182     172:27      173:1588   
 174:687     175:515     176:1310    177:2442    178:1958    179:206    
 180:1585    181:823     182:1340    183:466     184:668     185:1006   
 186:2654    187:1481    188:1869    189:1248    190:7115    192:7117   
 193:5426    194:4049    195:3365    196:1340    197:1062    198:4759   
 199:5503    200:6080    201:2464    202:8947    203:8875    204:4538   
 205:2651    206:2843    207:2831    208:3978    209:3654    210:3002   
 211:1568    212:2146    213:1990    214:895     215:91      216:5421   
 217:1688    218:627     219:323     220:1280    221:569     222:327    
 223:503    

End of report


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