[lacnog] Weekly Routing Table Report

Routing Analysis Role Account cscora en apnic.net
Vie Jun 22 15:48:35 BRT 2012


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 23 Jun, 2012

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

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

BGP routing table entries examined:                              414975
    Prefixes after maximum aggregation:                          175345
    Deaggregation factor:                                          2.37
    Unique aggregates announced to Internet:                     202288
Total ASes present in the Internet Routing Table:                 41358
    Prefixes per ASN:                                             10.03
Origin-only ASes present in the Internet Routing Table:           33312
Origin ASes announcing only one prefix:                           15660
Transit ASes present in the Internet Routing Table:                5532
Transit-only ASes present in the Internet Routing Table:            141
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      28
    Max AS path prepend of ASN ( 36992)                              22
Prefixes from unregistered ASNs in the Routing Table:               392
    Unregistered ASNs in the Routing Table:                         123
Number of 32-bit ASNs allocated by the RIRs:                       2879
Number of 32-bit ASNs visible in the Routing Table:                2514
Prefixes from 32-bit ASNs in the Routing Table:                    6440
Special use prefixes present in the Routing Table:                    2
Prefixes being announced from unallocated address space:            260
Number of addresses announced to Internet:                   2568129068
    Equivalent to 153 /8s, 18 /16s and 138 /24s
    Percentage of available address space announced:               69.3
    Percentage of allocated address space announced:               69.4
    Percentage of available address space allocated:               99.9
    Percentage of address space in use by end-sites:               93.0
Total number of prefixes smaller than registry allocations:      144378

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

Prefixes being announced by APNIC Region ASes:                   101060
    Total APNIC prefixes after maximum aggregation:               32679
    APNIC Deaggregation factor:                                    3.09
Prefixes being announced from the APNIC address blocks:          101493
    Unique aggregates announced from the APNIC address blocks:    41912
APNIC Region origin ASes present in the Internet Routing Table:    4708
    APNIC Prefixes per ASN:                                       21.56
APNIC Region origin ASes announcing only one prefix:               1240
APNIC Region transit ASes present in the Internet Routing Table:    743
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:    238
Number of APNIC addresses announced to Internet:              703274368
    Equivalent to 41 /8s, 235 /16s and 29 /24s
    Percentage of available APNIC address space announced:         82.2

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 131072-133119
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:                    152044
    Total ARIN prefixes after maximum aggregation:                77265
    ARIN Deaggregation factor:                                     1.97
Prefixes being announced from the ARIN address blocks:           152987
    Unique aggregates announced from the ARIN address blocks:     68132
ARIN Region origin ASes present in the Internet Routing Table:    15172
    ARIN Prefixes per ASN:                                        10.08
ARIN Region origin ASes announcing only one prefix:                5752
ARIN Region transit ASes present in the Internet Routing Table:    1601
Average ARIN Region AS path length visible:                         4.0
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:      16
Number of ARIN addresses announced to Internet:              1080985216
    Equivalent to 64 /8s, 110 /16s and 134 /24s
    Percentage of available ARIN address space announced:          57.2

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, 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:                    103551
    Total RIPE prefixes after maximum aggregation:                54846
    RIPE Deaggregation factor:                                     1.89
Prefixes being announced from the RIPE address blocks:           105587
    Unique aggregates announced from the RIPE address blocks:     66781
RIPE Region origin ASes present in the Internet Routing Table:    16640
    RIPE Prefixes per ASN:                                         6.35
RIPE Region origin ASes announcing only one prefix:                8070
RIPE Region transit ASes present in the Internet Routing Table:    2666
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          28
Number of RIPE region 32-bit ASNs visible in the Routing Table:    1654
Number of RIPE addresses announced to Internet:               631874948
    Equivalent to 37 /8s, 169 /16s and 165 /24s
    Percentage of available RIPE address space announced:          91.9

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, 196608-199679
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:                   42327
    Total LACNIC prefixes after maximum aggregation:               8320
    LACNIC Deaggregation factor:                                   5.09
Prefixes being announced from the LACNIC address blocks:          44845
    Unique aggregates announced from the LACNIC address blocks:   21926
LACNIC Region origin ASes present in the Internet Routing Table:   1600
    LACNIC Prefixes per ASN:                                      28.03
LACNIC Region origin ASes announcing only one prefix:               431
LACNIC Region transit ASes present in the Internet Routing Table:   308
Average LACNIC Region AS path length visible:                       4.4
    Max LACNIC Region AS path length visible:                        21
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   600
Number of LACNIC addresses announced to Internet:             111077288
    Equivalent to 6 /8s, 158 /16s and 231 /24s
    Percentage of available LACNIC address space announced:        66.2

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       262144-263167 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:                   9352
    Total AfriNIC prefixes after maximum aggregation:              2173
    AfriNIC Deaggregation factor:                                  4.30
Prefixes being announced from the AfriNIC address blocks:          9803
    Unique aggregates announced from the AfriNIC address blocks:   3304
AfriNIC Region origin ASes present in the Internet Routing Table:   548
    AfriNIC Prefixes per ASN:                                     17.89
AfriNIC Region origin ASes announcing only one prefix:              167
AfriNIC Region transit ASes present in the Internet Routing Table:  125
Average AfriNIC Region AS path length visible:                      4.6
    Max AfriNIC Region AS path length visible:                       25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    6
Number of AfriNIC addresses announced to Internet:             40527872
    Equivalent to 2 /8s, 106 /16s and 104 /24s
    Percentage of available AfriNIC address space announced:       40.3

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     2704      11117        1196   Korea Telecom (KIX)
17974     1945        533          80   PT TELEKOMUNIKASI INDONESIA
 7545     1689        301          87   TPG Internet Pty Ltd
 4755     1594        385         154   TATA Communications formerly 
 9829     1300       1085          28   BSNL National Internet Backbo
 9583     1173         89         511   Sify Limited
 4808     1107       2054         313   CNCGROUP IP network: China169
 7552     1100       1062          11   Vietel Corporation
24560     1034        385         165   Bharti Airtel Ltd., Telemedia
 9498      966        291          63   BHARTI Airtel Ltd.

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     3401       3791         190   bellsouth.net, inc. 
 7029     3238        986         157   Windstream Communications Inc
18566     2091        382         181   Covad Communications 
 1785     1925        681         132   PaeTec Communications, Inc.
22773     1650       2911         121   Cox Communications, Inc.
20115     1645       1570         613   Charter Communications 
 4323     1571       1043         385   Time Warner Telecom
30036     1439        269         763   Mediacom Communications Corp 
 7018     1225      10013         823   AT&T WorldNet Services
11492     1189        216         356   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     1690        544          16   Corbina telecom
 2118     1255         97          14   EUnet/RELCOM Autonomous Syste
12479      757        721          93   Uni2 Autonomous System
34984      710        188         173   BILISIM TELEKOM
31148      686         37           9   FreeNet ISP
 6830      685       2234         437   UPC Distribution Services
20940      664        215         520   Akamai Technologies European 
 8551      577        364          61   Bezeq International
 3320      490       8442         403   Deutsche Telekom AG
13188      476        100          10   Educational Network

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
10620     1967        342         205   TVCABLE BOGOTA 
28573     1942       1211          54   NET Servicos de Comunicao S.A
 6503     1530        418          65   AVANTEL, S.A. 
 8151     1491       3068         336   UniNet S.A. de C.V. 
 7303     1440        901         195   Telecom Argentina Stet-France
26615      903        728          33   Tim Brasil S.A.
27947      705         73          93   Telconet S.A
11172      646         91          74   Servicios Alestra S.A de C.V 
 3816      586        247          89   Empresa Nacional de Telecomun
22047      583        326          15   VTR PUNTO NET 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
 8452     1275        958          13   TEDATA
24863      860        274          35   LINKdotNET AS number
 6713      499        649          18   Itissalat Al-MAGHRIB
24835      321         80           8   RAYA Telecom - Egypt
 3741      262        905         223   The Internet Solution 
33776      209         12          21   Starcomms Nigeria Limited
12258      197         28          62   Vodacom Internet Company 
16637      172        664          87   MTN Network Solutions
29975      167        571          19   Vodacom
29571      157         15          16   Ci Telecom Autonomous system 

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
 6389     3401       3791         190   bellsouth.net, inc. 
 7029     3238        986         157   Windstream Communications Inc
 4766     2704      11117        1196   Korea Telecom (KIX)
18566     2091        382         181   Covad Communications 
10620     1967        342         205   TVCABLE BOGOTA 
17974     1945        533          80   PT TELEKOMUNIKASI INDONESIA
28573     1942       1211          54   NET Servicos de Comunicao S.A
 1785     1925        681         132   PaeTec Communications, Inc.
 8402     1690        544          16   Corbina telecom
 7545     1689        301          87   TPG Internet Pty Ltd

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

Global Per AS Maximum Aggr summary
----------------------------------

  ASN   No of nets  Net Savings Description
 7029      3238        3081      Windstream Communications Inc
18566      2091        1910      Covad Communications 
28573      1942        1888      NET Servicos de Comunicao S.A
17974      1945        1865      PT TELEKOMUNIKASI INDONESIA
 1785      1925        1793      PaeTec Communications, Inc.
10620      1967        1762      TVCABLE BOGOTA 
 8402      1690        1674      Corbina telecom
 7545      1689        1602      TPG Internet Pty Ltd
22773      1650        1529      Cox Communications, Inc.
 4766      2704        1508      Korea Telecom (KIX)

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
25639   UNALLOCATED  12.41.169.0/24        7018       AT&T WorldNet Servic
13317   UNALLOCATED  12.44.10.0/24         7018       AT&T WorldNet Servic
23502   UNALLOCATED  12.44.44.0/24         7018       AT&T WorldNet Servic
17300   UNALLOCATED  12.45.103.0/24        7018       AT&T WorldNet Servic
17300   UNALLOCATED  12.45.110.0/24         701       UUNET Technologies, 
16476   UNALLOCATED  12.46.27.0/24         7018       AT&T WorldNet Servic
32873   UNALLOCATED  12.46.100.0/23       10912       InterNAP Network Ser
32873   UNALLOCATED  12.46.102.0/24       10912       InterNAP Network Ser
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
128.0.0.0/21         12654     RIPE NCC RIS Project
128.0.24.0/24        12654     RIPE NCC RIS Project

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

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

Network            Origin AS  Description
14.192.0.0/22        45464     Room 201, TGU Bldg
14.192.4.0/22        45464     Room 201, TGU Bldg
14.192.8.0/22        45464     Room 201, TGU Bldg
14.192.12.0/22       45464     Room 201, TGU Bldg
14.192.16.0/22       45464     Room 201, TGU Bldg
14.192.20.0/22       45464     Room 201, TGU Bldg
14.192.24.0/22       45464     Room 201, TGU Bldg
14.192.28.0/22       45464     Room 201, TGU Bldg
27.112.114.0/24      23884     Proimage Engineering and Comm
46.96.0.0/22         31733     Link Telecom PJSC

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        /8:19       /9:13      /10:28      /11:83      /12:236     
/13:462     /14:832     /15:1508    /16:12291   /17:6333    /18:10725   
/19:20814   /20:29569   /21:31283   /22:40922   /23:38788   /24:217227  
/25:1238    /26:1460    /27:866     /28:171     /29:66      /30:18      
/31:0       /32:23      

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

  ASN   No of nets  Total ann.   Description
 7029     2636          3238      Windstream Communications Inc
18566     2040          2091      Covad Communications 
 6389     1874          3401      bellsouth.net, inc. 
 8402     1389          1690      Corbina telecom
30036     1378          1439      Mediacom Communications Corp 
11492     1152          1189      Cable One 
22773     1082          1650      Cox Communications, Inc.
 6503     1061          1530      AVANTEL, S.A. 
 8452     1040          1275      TEDATA
 1785     1036          1925      PaeTec Communications, Inc.

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

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

   1:563       2:712       3:1         4:13        5:62        6:3      
   8:429      12:2014     13:1        14:630      15:12       16:3      
  17:5        20:24       23:185      24:1784     27:1311     31:984    
  32:56       33:2        34:2        36:9        37:582      38:814    
  39:1        40:127      41:3147     42:139      44:3        46:1448   
  47:2        49:415      50:559      52:13       54:12       55:7      
  56:1        57:34       58:976      59:504      60:259      61:1227   
  62:997      63:2040     64:4251     65:2254     66:4460     67:2022   
  68:1155     69:3194     70:982      71:503      72:1829     74:2601   
  75:477      76:330      77:951      78:968      79:493      80:1216   
  81:943      82:653      83:526      84:498      85:1191     86:420    
  87:936      88:331      89:1721     90:298      91:4956     92:573    
  93:1402     94:1595     95:1230     96:371      97:316      98:893    
  99:38      100:17      101:251     103:1200    106:103     107:186    
 108:340     109:1411    110:785     111:925     112:419     113:623    
 114:642     115:822     116:949     117:730     118:899     119:1233   
 120:348     121:694     122:1673    123:1097    124:1400    125:1255   
 128:560     129:198     130:254     131:633     132:289     133:22     
 134:244     135:61      136:215     137:239     138:334     139:185    
 140:491     141:253     142:437     143:372     144:516     145:76     
 146:510     147:292     148:775     149:314     150:163     151:182    
 152:473     153:175     154:17      155:420     156:225     157:381    
 158:190     159:619     160:342     161:269     162:352     163:192    
 164:643     165:413     166:587     167:475     168:912     169:127    
 170:885     171:137     172:5       173:1779    174:615     175:436    
 176:545     177:842     178:1517    180:1264    181:97      182:1020   
 183:232     184:517     185:1       186:2375    187:1133    188:1349   
 189:1852    190:5635    192:6005    193:5539    194:4542    195:3430   
 196:1220    197:161     198:3666    199:4796    200:5897    201:1967   
 202:8667    203:8580    204:4337    205:2542    206:2805    207:2798   
 208:4042    209:3608    210:2786    211:1552    212:2032    213:1925   
 214:874     215:83      216:5102    217:1566    218:555     219:312    
 220:1241    221:574     222:315     223:354    

End of report



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