Home page logo
/

nanog logo nanog mailing list archives

Weekly Routing Table Report
From: Routing Analysis Role Account <cscora () apnic net>
Date: Sat, 11 Feb 2012 04:59:54 +1000 (EST)

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 () lists apnic net

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

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

Routing Table Report   04:00 +10GMT Sat 11 Feb, 2012

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

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

BGP routing table entries examined:                              397602
    Prefixes after maximum aggregation:                          169606
    Deaggregation factor:                                          2.34
    Unique aggregates announced to Internet:                     192311
Total ASes present in the Internet Routing Table:                 40086
    Prefixes per ASN:                                              9.92
Origin-only ASes present in the Internet Routing Table:           32739
Origin ASes announcing only one prefix:                           15528
Transit ASes present in the Internet Routing Table:                5400
Transit-only ASes present in the Internet Routing Table:            147
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      33
    Max AS path prepend of ASN (48687)                               24
Prefixes from unregistered ASNs in the Routing Table:               328
    Unregistered ASNs in the Routing Table:                         127
Number of 32-bit ASNs allocated by the RIRs:                       2272
Number of 32-bit ASNs visible in the Routing Table:                1947
Prefixes from 32-bit ASNs in the Routing Table:                    4674
Special use prefixes present in the Routing Table:                    2
Prefixes being announced from unallocated address space:            137
Number of addresses announced to Internet:                   2513929424
    Equivalent to 149 /8s, 215 /16s and 132 /24s
    Percentage of available address space announced:               67.8
    Percentage of allocated address space announced:               67.8
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               92.0
Total number of prefixes smaller than registry allocations:      168841

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

Prefixes being announced by APNIC Region ASes:                    98087
    Total APNIC prefixes after maximum aggregation:               31681
    APNIC Deaggregation factor:                                    3.10
Prefixes being announced from the APNIC address blocks:           94410
    Unique aggregates announced from the APNIC address blocks:    39147
APNIC Region origin ASes present in the Internet Routing Table:    4652
    APNIC Prefixes per ASN:                                       20.29
APNIC Region origin ASes announcing only one prefix:               1239
APNIC Region transit ASes present in the Internet Routing Table:    737
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         20
Number of APNIC region 32-bit ASNs visible in the Routing Table:    143
Number of APNIC addresses announced to Internet:              635706656
    Equivalent to 37 /8s, 228 /16s and 29 /24s
    Percentage of available APNIC address space announced:         80.6

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 131072-132095, 132096-133119
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, 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:                    148238
    Total ARIN prefixes after maximum aggregation:                75329
    ARIN Deaggregation factor:                                     1.97
Prefixes being announced from the ARIN address blocks:           120188
    Unique aggregates announced from the ARIN address blocks:     49415
ARIN Region origin ASes present in the Internet Routing Table:    14905
    ARIN Prefixes per ASN:                                         8.06
ARIN Region origin ASes announcing only one prefix:                5689
ARIN Region transit ASes present in the Internet Routing Table:    1576
Average ARIN Region AS path length visible:                         4.0
    Max ARIN Region AS path length visible:                          22
Number of ARIN region 32-bit ASNs visible in the Routing Table:      15
Number of ARIN addresses announced to Internet:               804413120
    Equivalent to 47 /8s, 242 /16s and 94 /24s
    Percentage of available ARIN address space announced:          63.9

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, 173/8,
                       174/8, 184/8, 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:                     98764
    Total RIPE prefixes after maximum aggregation:                52358
    RIPE Deaggregation factor:                                     1.89
Prefixes being announced from the RIPE address blocks:            90594
    Unique aggregates announced from the RIPE address blocks:     56087
RIPE Region origin ASes present in the Internet Routing Table:    16308
    RIPE Prefixes per ASN:                                         5.56
RIPE Region origin ASes announcing only one prefix:                7997
RIPE Region transit ASes present in the Internet Routing Table:    2598
Average RIPE Region AS path length visible:                         4.7
    Max RIPE Region AS path length visible:                          33
Number of RIPE region 32-bit ASNs visible in the Routing Table:    1344
Number of RIPE addresses announced to Internet:               500587080
    Equivalent to 29 /8s, 214 /16s and 90 /24s
    Percentage of available RIPE address space announced:          80.6

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
                       196608-198655
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,
                       176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
                       213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                   38648
    Total LACNIC prefixes after maximum aggregation:               8064
    LACNIC Deaggregation factor:                                   4.79
Prefixes being announced from the LACNIC address blocks:          38261
    Unique aggregates announced from the LACNIC address blocks:   19517
LACNIC Region origin ASes present in the Internet Routing Table:   1572
    LACNIC Prefixes per ASN:                                      24.34
LACNIC Region origin ASes announcing only one prefix:               439
LACNIC Region transit ASes present in the Internet Routing Table:   290
Average LACNIC Region AS path length visible:                       4.4
    Max LACNIC Region AS path length visible:                        24
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   441
Number of LACNIC addresses announced to Internet:              96512392
    Equivalent to 5 /8s, 192 /16s and 169 /24s
    Percentage of available LACNIC address space announced:        63.9

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,
                       200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes:                   9015
    Total AfriNIC prefixes after maximum aggregation:              2096
    AfriNIC Deaggregation factor:                                  4.30
Prefixes being announced from the AfriNIC address blocks:          7029
    Unique aggregates announced from the AfriNIC address blocks:   2148
AfriNIC Region origin ASes present in the Internet Routing Table:   511
    AfriNIC Prefixes per ASN:                                     13.76
AfriNIC Region origin ASes announcing only one prefix:              164
AfriNIC Region transit ASes present in the Internet Routing Table:  117
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:    4
Number of AfriNIC addresses announced to Internet:             30893056
    Equivalent to 1 /8s, 215 /16s and 100 /24s
    Percentage of available AfriNIC address space announced:       46.0

AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4766     2471      11101         979   Korea Telecom (KIX)
17974     1729        503          36   PT TELEKOMUNIKASI INDONESIA
 7545     1642        303          85   TPG Internet Pty Ltd
 4755     1532        385         156   TATA Communications formerly 
 7552     1393       1064           7   Vietel Corporation
 9829     1172        989          28   BSNL National Internet Backbo
 4808     1149       2112         314   CNCGROUP IP network: China169
 9583     1124         83         482   Sify Limited
24560     1014        385         167   Bharti Airtel Ltd., Telemedia
18101      950        130         155   Reliance Infocom Ltd Internet

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     3442       3807         201   bellsouth.net, inc. 
 7029     3391       1014         159   Windstream Communications Inc
18566     2093        382         177   Covad Communications 
 1785     1868        680         125   PaeTec Communications, Inc.
20115     1625       1550         631   Charter Communications 
 4323     1610       1062         385   Time Warner Telecom
22773     1511       2910         109   Cox Communications, Inc.
30036     1392        244         751   Mediacom Communications Corp 
19262     1386       4687         396   Verizon Global Networks 
 7018     1307       6995         849   AT&T WorldNet Services

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     1719        480          15   Corbina telecom
 2118     1385         97          13   EUnet/RELCOM Autonomous Syste
15557     1095       2161          63   LDCOM NETWORKS
34984      650        188         172   BILISIM TELEKOM
 6830      644       1927         413   UPC Distribution Services
20940      608        195         470   Akamai Technologies European 
12479      584        642          53   Uni2 Autonomous System
31148      538         37           9   FreeNet ISP
 3320      533       8450         399   Deutsche Telekom AG
 8551      530        360          81   Bezeq International

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     1751        324         162   TVCABLE BOGOTA 
28573     1655       1085          69   NET Servicos de Comunicao S.A
 8151     1475       3003         342   UniNet S.A. de C.V. 
 7303     1263        758         182   Telecom Argentina Stet-France
26615      896        664          33   Tim Brasil S.A.
11172      694         95          75   Servicios Alestra S.A de C.V 
27947      655         67         105   Telconet S.A
22047      581        322          17   VTR PUNTO NET S.A. 
 3816      551        237          91   Empresa Nacional de Telecomun
 7738      550       1050          31   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
 8452     1235        958          13   TEDATA
24863      829        155          43   LINKdotNET AS number
 6713      485        649          18   Itissalat Al-MAGHRIB
 3741      278        939         229   The Internet Solution 
15706      238         32           6   Sudatel Internet Exchange Aut
33776      236         13          14   Starcomms Nigeria Limited
12258      197         28          62   Vodacom Internet Company 
24835      193         80           8   RAYA Telecom - Egypt
29571      189         17          11   Ci Telecom Autonomous system 
16637      163        664          82   MTN Network Solutions

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     3442       3807         201   bellsouth.net, inc. 
 7029     3391       1014         159   Windstream Communications Inc
 4766     2471      11101         979   Korea Telecom (KIX)
18566     2093        382         177   Covad Communications 
 1785     1868        680         125   PaeTec Communications, Inc.
10620     1751        324         162   TVCABLE BOGOTA 
17974     1729        503          36   PT TELEKOMUNIKASI INDONESIA
 8402     1719        480          15   Corbina telecom
28573     1655       1085          69   NET Servicos de Comunicao S.A
 7545     1642        303          85   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      3391        3232      Windstream Communications Inc
18566      2093        1916      Covad Communications 
 1785      1868        1743      PaeTec Communications, Inc.
 8402      1719        1704      Corbina telecom
17974      1729        1693      PT TELEKOMUNIKASI INDONESIA
10620      1751        1589      TVCABLE BOGOTA 
28573      1655        1586      NET Servicos de Comunicao S.A
 7545      1642        1557      TPG Internet Pty Ltd
 4766      2471        1492      Korea Telecom (KIX)
22773      1511        1402      Cox Communications, Inc.

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
32567   UNALLOCATED  12.14.170.0/24        4323       Time Warner Telecom
32567   UNALLOCATED  12.25.107.0/24        4323       Time Warner Telecom
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

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
37.98.200.0/21       56687     Nimad Rah Khoozestan PLC
37.98.208.0/20        8374     Polkomtel S.A.

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       /9:12      /10:27      /11:80      /12:231     
/13:458     /14:816     /15:1469    /16:12130   /17:6197    /18:10311   
/19:20471   /20:28291   /21:29233   /22:39842   /23:37018   /24:207333  
/25:1195    /26:1434    /27:775     /28:169     /29:59      /30:14      
/31:0       /32:18      

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

  ASN   No of nets  Total ann.   Description
 7029     3047          3391      Windstream Communications Inc
 6389     2112          3442      bellsouth.net, inc. 
18566     2042          2093      Covad Communications 
 8402     1698          1719      Corbina telecom
10620     1645          1751      TVCABLE BOGOTA 
30036     1351          1392      Mediacom Communications Corp 
11492     1118          1155      Cable One 
 1785     1065          1868      PaeTec Communications, Inc.
15557     1045          1095      LDCOM NETWORKS
 8452     1041          1235      TEDATA

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

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

   1:505       2:689       4:14        5:1         6:3         8:385    
  12:1958     13:1        14:596      15:11       16:3        17:7      
  20:9        23:133      24:1724     27:1197     31:901      32:65     
  33:2        34:2        36:9        37:177      38:776      40:115    
  41:3174     42:93       43:1        44:3        46:1281     47:3      
  49:322      50:512      52:13       54:2        55:9        56:3      
  57:38       58:962      59:491      60:344      61:1195     62:949    
  63:2008     64:4130     65:2285     66:4426     67:2039     68:1174   
  69:3159     70:927      71:412      72:1795     74:2654     75:463    
  76:322      77:976      78:936      79:502      80:1228     81:881    
  82:569      83:529      84:582      85:1154     86:742      87:919    
  88:334      89:1547     90:271      91:4479     92:538      93:1328   
  94:1357     95:1084     96:418      97:310      98:814      99:38     
 100:4       101:141     103:776     106:65      107:152     108:150    
 109:1486    110:694     111:848     112:432     113:530     114:597    
 115:763     116:868     117:727     118:899     119:1254    120:361    
 121:683     122:1621    123:1071    124:1337    125:1369    128:542    
 129:189     130:212     131:589     132:164     133:21      134:231    
 135:60      136:216     137:153     138:286     139:145     140:488    
 141:262     142:385     143:411     144:520     145:70      146:484    
 147:242     148:728     149:274     150:165     151:196     152:447    
 153:170     154:7       155:403     156:211     157:368     158:156    
 159:515     160:322     161:244     162:341     163:187     164:529    
 165:391     166:556     167:457     168:762     169:147     170:832    
 171:111     172:2       173:1733    174:603     175:416     176:515    
 177:481     178:1247    180:1180    181:65      182:715     183:278    
 184:425     185:1       186:2050    187:842     188:1031    189:1169   
 190:5474    192:5970    193:5525    194:4327    195:3393    196:1299   
 197:181     198:3619    199:4378    200:5718    201:1736    202:8496   
 203:8625    204:4346    205:2440    206:2736    207:2804    208:4069   
 209:3566    210:2747    211:1477    212:2042    213:1847    214:864    
 215:96      216:5000    217:1477    218:548     219:340     220:1252   
 221:558     222:325     223:280    

End of report


  By Date           By Thread  

Current thread:
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]