[lacnog] Weekly Routing Table Report

Routing Analysis Role Account cscora en apnic.net
Vie Sep 13 15:35:38 BRT 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 en lists.apnic.net

For historical data, please see http://thyme.rand.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz en gmail.com>.

Routing Table Report   04:00 +10GMT Sat 14 Sep, 2013

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

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

BGP routing table entries examined:                              466731
    Prefixes after maximum aggregation:                          188606
    Deaggregation factor:                                          2.47
    Unique aggregates announced to Internet:                     232076
Total ASes present in the Internet Routing Table:                 44957
    Prefixes per ASN:                                             10.38
Origin-only ASes present in the Internet Routing Table:           35133
Origin ASes announcing only one prefix:                           16260
Transit ASes present in the Internet Routing Table:                5898
Transit-only ASes present in the Internet Routing Table:            160
Average AS path length visible in the Internet Routing Table:       4.7
    Max AS path length visible:                                      30
    Max AS path prepend of ASN ( 36992)                              22
Prefixes from unregistered ASNs in the Routing Table:              5814
    Unregistered ASNs in the Routing Table:                        1930
Number of 32-bit ASNs allocated by the RIRs:                       5026
Number of 32-bit ASNs visible in the Routing Table:                3926
Prefixes from 32-bit ASNs in the Routing Table:                   12187
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            424
Number of addresses announced to Internet:                   2642434644
    Equivalent to 157 /8s, 128 /16s and 90 /24s
    Percentage of available address space announced:               71.4
    Percentage of allocated address space announced:               71.4
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               95.0
Total number of prefixes smaller than registry allocations:      163699

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

Prefixes being announced by APNIC Region ASes:                   110762
    Total APNIC prefixes after maximum aggregation:               33625
    APNIC Deaggregation factor:                                    3.29
Prefixes being announced from the APNIC address blocks:          112750
    Unique aggregates announced from the APNIC address blocks:    46637
APNIC Region origin ASes present in the Internet Routing Table:    4870
    APNIC Prefixes per ASN:                                       23.15
APNIC Region origin ASes announcing only one prefix:               1219
APNIC Region transit ASes present in the Internet Routing Table:    833
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         24
Number of APNIC region 32-bit ASNs visible in the Routing Table:    673
Number of APNIC addresses announced to Internet:              727657280
    Equivalent to 43 /8s, 95 /16s and 43 /24s
    Percentage of available APNIC address space announced:         85.0

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:                    161603
    Total ARIN prefixes after maximum aggregation:                81243
    ARIN Deaggregation factor:                                     1.99
Prefixes being announced from the ARIN address blocks:           162192
    Unique aggregates announced from the ARIN address blocks:     75506
ARIN Region origin ASes present in the Internet Routing Table:    15873
    ARIN Prefixes per ASN:                                        10.22
ARIN Region origin ASes announcing only one prefix:                6016
ARIN Region transit ASes present in the Internet Routing Table:    1654
Average ARIN Region AS path length visible:                         4.1
    Max ARIN Region AS path length visible:                          27
Number of ARIN region 32-bit ASNs visible in the Routing Table:      21
Number of ARIN addresses announced to Internet:              1071208192
    Equivalent to 63 /8s, 217 /16s and 87 /24s
    Percentage of available ARIN address space announced:          56.7

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:                    118845
    Total RIPE prefixes after maximum aggregation:                61298
    RIPE Deaggregation factor:                                     1.94
Prefixes being announced from the RIPE address blocks:           122683
    Unique aggregates announced from the RIPE address blocks:     79591
RIPE Region origin ASes present in the Internet Routing Table:    17413
    RIPE Prefixes per ASN:                                         7.05
RIPE Region origin ASes announcing only one prefix:                8259
RIPE Region transit ASes present in the Internet Routing Table:    2807
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:    2392
Number of RIPE addresses announced to Internet:               657272548
    Equivalent to 39 /8s, 45 /16s and 46 /24s
    Percentage of available RIPE address space announced:          95.6

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:                   51379
    Total LACNIC prefixes after maximum aggregation:               9759
    LACNIC Deaggregation factor:                                   5.26
Prefixes being announced from the LACNIC address blocks:          56230
    Unique aggregates announced from the LACNIC address blocks:   25968
LACNIC Region origin ASes present in the Internet Routing Table:   2017
    LACNIC Prefixes per ASN:                                      27.88
LACNIC Region origin ASes announcing only one prefix:               567
LACNIC Region transit ASes present in the Internet Routing Table:   376
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        29
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   834
Number of LACNIC addresses announced to Internet:             138838064
    Equivalent to 8 /8s, 70 /16s and 128 /24s
    Percentage of available LACNIC address space announced:        82.8

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:                  11842
    Total AfriNIC prefixes after maximum aggregation:              2623
    AfriNIC Deaggregation factor:                                  4.51
Prefixes being announced from the AfriNIC address blocks:         12452
    Unique aggregates announced from the AfriNIC address blocks:   3987
AfriNIC Region origin ASes present in the Internet Routing Table:   657
    AfriNIC Prefixes per ASN:                                     18.95
AfriNIC Region origin ASes announcing only one prefix:              199
AfriNIC Region transit ASes present in the Internet Routing Table:  139
Average AfriNIC Region AS path length visible:                      4.8
    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:             46560000
    Equivalent to 2 /8s, 198 /16s and 115 /24s
    Percentage of available AfriNIC address space announced:       46.3

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     2923      11561         924   Korea Telecom (KIX)
17974     2676        903          91   PT TELEKOMUNIKASI INDONESIA
 7545     2072        321         112   TPG Internet Pty Ltd
 4755     1771        390         190   TATA Communications formerly 
 9829     1549       1237          45   BSNL National Internet Backbo
 9583     1232         92         505   Sify Limited
 9498     1186        309          70   BHARTI Airtel Ltd.
 4808     1159       2128         341   CNCGROUP IP network: China169
 7552     1155       1080          13   Vietel Corporation
24560     1090        394         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     3068       3689          62   bellsouth.net, inc. 
18566     2065        382         184   Covad Communications 
22773     2041       2933         124   Cox Communications, Inc.
 1785     2011        679         125   PaeTec Communications, Inc.
20115     1678       1649         629   Charter Communications 
 4323     1617       1103         411   Time Warner Telecom
  701     1531      11136         798   UUNET Technologies, Inc. 
30036     1352        305         630   Mediacom Communications Corp 
 7018     1315      11261         827   AT&T WorldNet Services
11492     1222        218         365   Cable One 

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     1703        544          16   Corbina telecom
34984     1329        244         220   BILISIM TELEKOM
20940     1014        369         781   Akamai Technologies European 
31148      981         43          20   FreeNet ISP
 6830      894       2367         426   UPC Distribution Services
13188      847         99          70   Educational Network
 8551      749        370          41   Bezeq International
12479      673        797          53   Uni2 Autonomous System
58113      541         55         339   LIR DATACENTER TELECOM SRL
35228      528        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     3249       1722          97   NET Servicos de Comunicao S.A
10620     2559        418         246   TVCABLE BOGOTA 
 7303     1708       1133         225   Telecom Argentina Stet-France
18881     1430        844          20   Global Village Telecom 
 8151     1291       2782         391   UniNet S.A. de C.V. 
11830      865        364          15   Instituto Costarricense de El
27947      840         94          92   Telconet S.A
 6503      813        434          64   AVANTEL, S.A. 
 7738      780       1498          36   Telecomunicacoes da Bahia S.A
 6147      740        376          21   Telefonica Del Peru 

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     1861        112           5   MOBITEL
24863      868        274          30   LINKdotNET AS number
 6713      554        633          26   Itissalat Al-MAGHRIB
 8452      435        956           9   TEDATA
24835      291         80           8   RAYA Telecom - Egypt
 3741      257        921         216   The Internet Solution 
36992      222        501          28   Etisalat MISR
15706      221         32           6   Sudatel Internet Exchange Aut
29571      221         17          12   Ci Telecom Autonomous system 
29975      191        667          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     3249       1722          97   NET Servicos de Comunicao S.A
 6389     3068       3689          62   bellsouth.net, inc. 
 4766     2923      11561         924   Korea Telecom (KIX)
17974     2676        903          91   PT TELEKOMUNIKASI INDONESIA
10620     2559        418         246   TVCABLE BOGOTA 
 7545     2072        321         112   TPG Internet Pty Ltd
18566     2065        382         184   Covad Communications 
22773     2041       2933         124   Cox Communications, Inc.
 1785     2011        679         125   PaeTec Communications, Inc.
36998     1861        112           5   MOBITEL

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      3068        3006      bellsouth.net, inc. 
17974      2676        2585      PT TELEKOMUNIKASI INDONESIA
10620      2559        2313      TVCABLE BOGOTA 
 4766      2923        1999      Korea Telecom (KIX)
 7545      2072        1960      TPG Internet Pty Ltd
22773      2041        1917      Cox Communications, Inc.
 1785      2011        1886      PaeTec Communications, Inc.
18566      2065        1881      Covad Communications 
36998      1861        1856      MOBITEL
 8402      1703        1687      Corbina telecom

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

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS  Designation  Network              Transit AS  Description
15132   UNALLOCATED  12.9.150.0/24         7018       AT&T WorldNet Servic
30031   UNALLOCATED  12.27.122.0/24        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
33649   UNALLOCATED  12.111.112.0/24      19029       New Edge Networks 

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. 
23.91.96.0/20        40676     Psychz Networks 
23.91.160.0/22       36493     3757277 Canada Inc. (oa 295.c
23.91.160.0/19       36493     3757277 Canada Inc. (oa 295.c
23.91.164.0/22       36493     3757277 Canada Inc. (oa 295.c
23.91.168.0/22       36493     3757277 Canada Inc. (oa 295.c
23.91.172.0/22       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      /11:93      /12:250     
/13:479     /14:914     /15:1625    /16:12781   /17:6701    /18:11142   
/19:22929   /20:32520   /21:35083   /22:49455   /23:43148   /24:247083  
/25:839     /26:988     /27:484     /28:48      /29:78      /30:19      
/31:0       /32:14      

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

  ASN   No of nets  Total ann.   Description
18566     2016          2065      Covad Communications 
36998     1826          1861      MOBITEL
 6389     1713          3068      bellsouth.net, inc. 
 8402     1427          1703      Corbina telecom
22773     1328          2041      Cox Communications, Inc.
30036     1212          1352      Mediacom Communications Corp 
11492     1183          1222      Cable One 
 1785     1083          2011      PaeTec Communications, Inc.
 6983     1025          1152      ITC^Deltacom 
22561      930          1196      Digital Teleport, Inc 

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

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

   1:809       2:839       3:3         4:17        5:941       6:19     
   8:609      12:1889     13:3        14:868      15:11       16:3      
  17:11       18:19       20:21       23:389      24:1739     27:1564   
  31:1438     32:45       33:2        34:5        36:77       37:1846   
  38:903      39:3        40:179      41:3350     42:253      44:9      
  46:1989     47:4        49:670      50:837      52:12       54:37     
  55:7        57:26       58:1167     59:607      60:339      61:1421   
  62:1188     63:1984     64:4566     65:2364     66:4164     67:2073   
  68:1087     69:3298     70:865      71:496      72:2005     74:2549   
  75:330      76:304      77:1178     78:1054     79:620      80:1325   
  81:1029     82:646      83:582      84:583      85:1291     86:494    
  87:1040     88:559      89:1842     90:158      91:5656     92:605    
  93:1665     94:2072     95:1550     96:516      97:342      98:1038   
  99:44      100:31      101:606     103:3303    105:519     106:142    
 107:208     108:503     109:1881    110:961     111:1127    112:569    
 113:795     114:730     115:996     116:979     117:802     118:1156   
 119:1290    120:366     121:740     122:1869    123:1254    124:1382   
 125:1424    128:611     129:231     130:321     131:675     132:351    
 133:161     134:290     135:67      136:271     137:263     138:348    
 139:178     140:199     141:325     142:553     143:392     144:501    
 145:95      146:536     147:489     148:686     149:355     150:154    
 151:601     152:414     153:195     154:46      155:504     156:274    
 157:419     158:285     159:760     160:350     161:446     162:652    
 163:227     164:620     165:567     166:259     167:607     168:1047   
 169:125     170:1084    171:194     172:25      173:1603    174:522    
 175:498     176:1193    177:2263    178:1896    179:118     180:1530   
 181:722     182:1271    183:461     184:623     185:826     186:2491   
 187:1460    188:1880    189:1313    190:7087    192:6926    193:5652   
 194:4063    195:3332    196:1402    197:1004    198:4662    199:5420   
 200:6023    201:2538    202:8965    203:8918    204:4522    205:2628   
 206:2844    207:2884    208:4002    209:3605    210:2950    211:1555   
 212:2266    213:2050    214:928     215:99      216:5308    217:1655   
 218:623     219:313     220:1278    221:557     222:326     223:500    


End of report



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