[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Oct 25 18:07:08 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 26 Oct, 2013

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

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

BGP routing table entries examined:                              470253
    Prefixes after maximum aggregation:                          189267
    Deaggregation factor:                                          2.48
    Unique aggregates announced to Internet:                     233307
Total ASes present in the Internet Routing Table:                 41263
    Prefixes per ASN:                                             11.40
Origin-only ASes present in the Internet Routing Table:           35299
Origin ASes announcing only one prefix:                           16281
Transit ASes present in the Internet Routing Table:                5957
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:               713
    Unregistered ASNs in the Routing Table:                         192
Number of 32-bit ASNs allocated by the RIRs:                       5249
Number of 32-bit ASNs visible in the Routing Table:                   7
Prefixes from 32-bit ASNs in the Routing Table:                   12489
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            847
Number of addresses announced to Internet:                   2652267476
    Equivalent to 158 /8s, 22 /16s and 99 /24s
    Percentage of available address space announced:               71.6
    Percentage of allocated address space announced:               71.6
    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:      164267

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

Prefixes being announced by APNIC Region ASes:                   111549
    Total APNIC prefixes after maximum aggregation:               33829
    APNIC Deaggregation factor:                                    3.30
Prefixes being announced from the APNIC address blocks:          113639
    Unique aggregates announced from the APNIC address blocks:    46970
APNIC Region origin ASes present in the Internet Routing Table:    4880
    APNIC Prefixes per ASN:                                       23.29
APNIC Region origin ASes announcing only one prefix:               1218
APNIC Region transit ASes present in the Internet Routing Table:    839
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:      1
Number of APNIC addresses announced to Internet:              729582016
    Equivalent to 43 /8s, 124 /16s and 137 /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:                    162893
    Total ARIN prefixes after maximum aggregation:                81514
    ARIN Deaggregation factor:                                     2.00
Prefixes being announced from the ARIN address blocks:           163685
    Unique aggregates announced from the ARIN address blocks:     75962
ARIN Region origin ASes present in the Internet Routing Table:    15905
    ARIN Prefixes per ASN:                                        10.29
ARIN Region origin ASes announcing only one prefix:                6003
ARIN Region transit ASes present in the Internet Routing Table:    1670
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:       2
Number of ARIN addresses announced to Internet:              1073475200
    Equivalent to 63 /8s, 251 /16s and 238 /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:                    118701
    Total RIPE prefixes after maximum aggregation:                61311
    RIPE Deaggregation factor:                                     1.94
Prefixes being announced from the RIPE address blocks:           122310
    Unique aggregates announced from the RIPE address blocks:     78965
RIPE Region origin ASes present in the Internet Routing Table:    17512
    RIPE Prefixes per ASN:                                         6.98
RIPE Region origin ASes announcing only one prefix:                8301
RIPE Region transit ASes present in the Internet Routing Table:    2841
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:       1
Number of RIPE addresses announced to Internet:               656716388
    Equivalent to 39 /8s, 36 /16s and 178 /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:                   52444
    Total LACNIC prefixes after maximum aggregation:               9927
    LACNIC Deaggregation factor:                                   5.28
Prefixes being announced from the LACNIC address blocks:          57512
    Unique aggregates announced from the LACNIC address blocks:   26693
LACNIC Region origin ASes present in the Internet Routing Table:   2040
    LACNIC Prefixes per ASN:                                      28.19
LACNIC Region origin ASes announcing only one prefix:               560
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:     2
Number of LACNIC addresses announced to Internet:             141095728
    Equivalent to 8 /8s, 104 /16s and 243 /24s
    Percentage of available LACNIC address space announced:        84.1

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:                  11607
    Total AfriNIC prefixes after maximum aggregation:              2559
    AfriNIC Deaggregation factor:                                  4.54
Prefixes being announced from the AfriNIC address blocks:         12260
    Unique aggregates announced from the AfriNIC address blocks:   4004
AfriNIC Region origin ASes present in the Internet Routing Table:   667
    AfriNIC Prefixes per ASN:                                     18.38
AfriNIC Region origin ASes announcing only one prefix:              199
AfriNIC Region transit ASes present in the Internet Routing Table:  136
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:    1
Number of AfriNIC addresses announced to Internet:             48076544
    Equivalent to 2 /8s, 221 /16s and 151 /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     2938      11558         943   Korea Telecom (KIX)
17974     2717        903          89   PT TELEKOMUNIKASI INDONESIA
 7545     2095        319         112   TPG Internet Pty Ltd
 4755     1782        391         187   TATA Communications formerly 
 9829     1557       1241          45   BSNL National Internet Backbo
 9498     1206        309          74   BHARTI Airtel Ltd.
 9583     1187         90         513   Sify Limited
 4808     1164       2127         341   CNCGROUP IP network: China169
 7552     1156       1080          13   Vietel Corporation
24560     1091        380         164   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     3062       3689          58   BellSouth.net Inc.
22773     2185       2941         139   Cox Communications, Inc.
18566     2059        379         180   Covad Communications 
 1785     2035        684         130   PaeTec Communications, Inc.
20115     1682       1653         613   Charter Communications 
 4323     1615       1101         417   Time Warner Telecom
  701     1509      11145         784   UUNET Technologies, Inc. 
30036     1387        313         577   Mediacom Communications Corp 
 7018     1336      17778         865   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     1839        544          17   OJSC "Vimpelcom"
34984     1361        244         223   TELLCOM ILETISIM HIZMETLERI A
20940     1081        394         828   Akamai Technologies European 
31148     1000         44          19   FreeNet ISP
13188      885         99          58   TOV "Bank-Inform"
 6830      770       2327         423   UPC Distribution Services
 8551      755        370          41   Bezeq International
12479      686        800          49   Uni2 Autonomous System
35228      542        246          16   Avatar Broadband Limited
34744      515        158          54   SC GVM SISTEM 2003 SRL

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     3451       1780          88   NET Servicos de Comunicao S.A
10620     2610        424         240   TVCABLE BOGOTA 
 7303     1725       1135         234   Telecom Argentina Stet-France
18881     1486        844          20   Global Village Telecom 
 8151     1348       2827         417   UniNet S.A. de C.V. 
11830      865        364          15   Instituto Costarricense de El
27947      843         93          92   Telconet S.A
 6147      789        373          27   Telefonica Del Peru 
 6503      788        434          62   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     1864        112           5   Sudanese Mobile Telephone (ZA
24863      882        338          30   LINKdotNET AS number
 6713      554        633          26   Itissalat Al-MAGHRIB
 8452      409        956           9   TEDATA
24835      294        144           9   RAYA Telecom - Egypt
 3741      258        921         216   The Internet Solution 
36992      226        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     3451       1780          88   NET Servicos de Comunicao S.A
 6389     3062       3689          58   BellSouth.net Inc.
 4766     2938      11558         943   Korea Telecom (KIX)
17974     2717        903          89   PT TELEKOMUNIKASI INDONESIA
10620     2610        424         240   TVCABLE BOGOTA 
22773     2185       2941         139   Cox Communications, Inc.
 7545     2095        319         112   TPG Internet Pty Ltd
18566     2059        379         180   Covad Communications 
 1785     2035        684         130   PaeTec Communications, Inc.
36998     1864        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      3062        3004      BellSouth.net Inc.
17974      2717        2628      PT TELEKOMUNIKASI INDONESIA
10620      2610        2370      TVCABLE BOGOTA 
22773      2185        2046      Cox Communications, Inc.
 4766      2938        1995      Korea Telecom (KIX)
 7545      2095        1983      TPG Internet Pty Ltd
 1785      2035        1905      PaeTec Communications, Inc.
18566      2059        1879      Covad Communications 
36998      1864        1859      Sudanese Mobile Telephone (ZA
 8402      1839        1822      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 
17300   UNALLOCATED  12.45.110.0/24         701       UUNET Technologies, 
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 
23.91.32.0/19        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
23.91.164.0/22       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      /12:253     
/13:480     /14:917     /15:1630    /16:12844   /17:6719    /18:11266   
/19:22958   /20:32707   /21:35361   /22:49971   /23:43374   /24:249130  
/25:871     /26:990     /27:469     /28:50      /29:79      /30:20      
/31:0       /32:14      

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

  ASN   No of nets  Total ann.   Description
18566     2012          2059      Covad Communications 
36998     1829          1864      Sudanese Mobile Telephone (ZA
 6389     1712          3062      BellSouth.net Inc.
 8402     1535          1839      OJSC "Vimpelcom"
22773     1451          2185      Cox Communications, Inc.
30036     1235          1387      Mediacom Communications Corp 
11492     1197          1238      Cable One 
 1785     1085          2035      PaeTec Communications, Inc.
 6983     1034          1293      ITC^Deltacom 
22561      965          1241      Digital Teleport, Inc 

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

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

   1:857       2:820       3:3         4:17        5:999       6:20     
   8:614      12:1888     13:3        14:884      15:11       16:3      
  17:17       18:19       20:21       23:498      24:1736     27:1604   
  31:1484     32:45       33:2        34:5        36:82       37:1841   
  38:920      39:4        40:181      41:3171     42:248      44:14     
  46:2031     47:7        49:681      50:837      52:12       54:39     
  55:6        56:2        57:26       58:1154     59:576      60:359    
  61:1473     62:1205     63:1979     64:4559     65:2340     66:4138   
  67:2116     68:1099     69:3291     70:877      71:491      72:2021   
  74:2566     75:328      76:309      77:1167     78:1074     79:656    
  80:1291     81:1015     82:657      83:635      84:590      85:1241   
  86:415      87:1009     88:563      89:1661     90:155      91:5658   
  92:618      93:1596     94:2037     95:1597     96:508      97:344    
  98:1048     99:42      100:31      101:613     103:3481    105:525    
 106:143     107:213     108:526     109:1912    110:974     111:1098   
 112:590     113:809     114:751     115:1035    116:990     117:838    
 118:1174    119:1294    120:372     121:745     122:1875    123:1252   
 124:1369    125:1434    128:647     129:237     130:328     131:661    
 132:348     133:158     134:545     135:67      136:278     137:268    
 138:351     139:176     140:203     141:334     142:544     143:420    
 144:501     145:89      146:519     147:405     148:767     149:356    
 150:142     151:592     152:410     153:205     154:49      155:486    
 156:286     157:424     158:282     159:768     160:356     161:483    
 162:805     163:227     164:634     165:574     166:256     167:624    
 168:1045    169:128     170:1122    171:181     172:25      173:1607   
 174:682     175:510     176:1275    177:2328    178:1947    179:195    
 180:1579    181:779     182:1341    183:454     184:661     185:951    
 186:2651    187:1502    188:1861    189:1290    190:7194    192:7111   
 193:5408    194:4040    195:3319    196:1321    197:1027    198:4744   
 199:5483    200:6106    201:2524    202:8974    203:8914    204:4517   
 205:2639    206:2836    207:2894    208:3983    209:3639    210:3012   
 211:1563    212:2140    213:1977    214:894     215:91      216:5402   
 217:1691    218:622     219:317     220:1275    221:566     222:326    
 223:508    

End of report


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