[AusNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Sat Feb 2 05:07:05 EST 2008


This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats at lists.apnic.net

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

If you have any comments please contact Philip Smith <pfs at cisco.com>.

Routing Table Report   04:00 +10GMT Sat 02 Feb, 2008

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

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

BGP routing table entries examined:                              243583
    Prefixes after maximum aggregation:                          124880
    Deaggregation factor:                                          1.95
    Unique aggregates announced to Internet:                     119568
Total ASes present in the Internet Routing Table:                 27234
    Prefixes per ASN:                                              8.94
Origin-only ASes present in the Internet Routing Table:           23738
Origin ASes announcing only one prefix:                           11535
Transit ASes present in the Internet Routing Table:                3496
Transit-only ASes present in the Internet Routing Table:             69
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      19
    Max AS path prepend of ASN (29642)                               15
Prefixes from unregistered ASNs in the Routing Table:                37
    Unregistered ASNs in the Routing Table:                          14
Number of 32-bit ASNs allocated by the RIRs:                         46
Prefixes from 32-bit ASNs in the Routing Table:                      10
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            870
Number of addresses announced to Internet:                   1825248736
    Equivalent to 108 /8s, 203 /16s and 21 /24s
    Percentage of available address space announced:               49.2
    Percentage of allocated address space announced:               61.1
    Percentage of available address space allocated:               80.5
    Percentage of address space in use by end-sites:               69.9
Total number of prefixes smaller than registry allocations:      114737

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

Prefixes being announced by APNIC Region ASes:                    55577
    Total APNIC prefixes after maximum aggregation:               21145
    APNIC Deaggregation factor:                                    2.63
Prefixes being announced from the APNIC address blocks:           53070
    Unique aggregates announced from the APNIC address blocks:    23817
APNIC Region origin ASes present in the Internet Routing Table:    3112
    APNIC Prefixes per ASN:                                       17.05
APNIC Region origin ASes announcing only one prefix:                818
APNIC Region transit ASes present in the Internet Routing Table:    463
Average APNIC Region AS path length visible:                        3.6
    Max APNIC Region AS path length visible:                         17
Number of APNIC addresses announced to Internet:              327917984
    Equivalent to 19 /8s, 139 /16s and 161 /24s
    Percentage of available APNIC address space announced:         75.2

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079
APNIC Address Blocks    58/8,  59/8,  60/8,  61/8, 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, 202/8, 203/8, 210/8, 211/8,
                       218/8, 219/8, 220/8, 221/8, 222/8,

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                    114927
    Total ARIN prefixes after maximum aggregation:                65329
    ARIN Deaggregation factor:                                     1.76
Prefixes being announced from the ARIN address blocks:            83837
    Unique aggregates announced from the ARIN address blocks:     33406
ARIN Region origin ASes present in the Internet Routing Table:    12107
    ARIN Prefixes per ASN:                                         6.92
ARIN Region origin ASes announcing only one prefix:                4669
ARIN Region transit ASes present in the Internet Routing Table:    1150
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          15
Number of ARIN addresses announced to Internet:               356357248
    Equivalent to 21 /8s, 61 /16s and 148 /24s
    Percentage of available ARIN address space announced:          78.7

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
ARIN Address Blocks     24/8,  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, 199/8, 204/8,
                       205/8, 206/8, 207/8, 208/8, 209/8, 216/8,

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                     51395
    Total RIPE prefixes after maximum aggregation:                32577
    RIPE Deaggregation factor:                                     1.58
Prefixes being announced from the RIPE address blocks:            46737
    Unique aggregates announced from the RIPE address blocks:     31450
RIPE Region origin ASes present in the Internet Routing Table:    10829
    RIPE Prefixes per ASN:                                         4.32
RIPE Region origin ASes announcing only one prefix:                5686
RIPE Region transit ASes present in the Internet Routing Table:    1661
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          18
Number of RIPE addresses announced to Internet:               339381504
    Equivalent to 20 /8s, 58 /16s and 141 /24s
    Percentage of available RIPE address space announced:          77.8

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
RIPE Address Blocks     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, 193/8,
                       194/8, 195/8, 212/8, 213/8, 217/8,

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

Prefixes being announced by LACNIC Region ASes:                   18505
    Total LACNIC prefixes after maximum aggregation:               4650
    LACNIC Deaggregation factor:                                   3.98
Prefixes being announced from the LACNIC address blocks:          16898
    Unique aggregates announced from the LACNIC address blocks:    9215
LACNIC Region origin ASes present in the Internet Routing Table:    898
    LACNIC Prefixes per ASN:                                      18.82
LACNIC Region origin ASes announcing only one prefix:               295
LACNIC Region transit ASes present in the Internet Routing Table:   151
Average LACNIC Region AS path length visible:                       3.9
    Max LACNIC Region AS path length visible:                        19
Number of LACNIC addresses announced to Internet:              48028928
    Equivalent to 2 /8s, 220 /16s and 221 /24s
    Percentage of available LACNIC address space announced:        47.7

LACNIC AS Blocks       26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks  186/8, 187/8, 189/8, 190/8, 200/8, 201/8,

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

Prefixes being announced by AfriNIC Region ASes:                   3148
    Total AfriNIC prefixes after maximum aggregation:              1159
    AfriNIC Deaggregation factor:                                  2.72
Prefixes being announced from the AfriNIC address blocks:          3450
    Unique aggregates announced from the AfriNIC address blocks:   1707
AfriNIC Region origin ASes present in the Internet Routing Table:   218
    AfriNIC Prefixes per ASN:                                     15.83
AfriNIC Region origin ASes announcing only one prefix:               67
AfriNIC Region transit ASes present in the Internet Routing Table:   37
Average AfriNIC Region AS path length visible:                      4.1
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:              9763328
    Equivalent to 0 /8s, 148 /16s and 250 /24s
    Percentage of available AfriNIC address space announced:       29.1

AfriNIC AS Blocks      36864-37887 & ERX transfers
AfriNIC Address Blocks  41/8, 196/8,

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4755     1558        384          75   Videsh Sanchar Nigam Ltd. Aut
 9498     1147        533          60   BHARTI BT INTERNET LTD.
 9583     1116         82         435   Sify Limited
17488      961         62          87   Hathway IP Over Cable Interne
 4134      861      11849         310   CHINANET-BACKBONE
 4766      843       5495         342   Korea Telecom (KIX)
23577      815         34         694   Korea Telecom (ATM-MPLS)
 9829      570        449          11   BSNL National Internet Backbo
 4812      549        940          84   China Telecom (Shanghai)
 1221      547       1952         422   Telstra Pty Ltd

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

ARIN Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1436       6020         982   AT&T WorldNet Services
 4323     1386       1012         366   Time Warner Telecom
 2386     1354        634         832   AT&T Data Communications Serv
11492     1216        136          19   Cable One 
18566     1041        296          10   Covad Communications 
 7011     1035        301         597   Citizens Utilities 
 6197     1034        739         512   BellSouth Network Solutions, 
  174      970       6834         811   Cogent Communications
 6478      909        234         104   AT&T Worldnet Services 
  701      895       6575         686   UUNET Technologies, Inc. 

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

RIPE Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3292      395       1650         358   TDC Tele Danmark
 3301      332       1458         303   TeliaNet Sweden
 3320      322       6020         267   Deutsche Telekom AG
 8866      280         78          24   Bulgarian Telecommunication C
 8551      279        267          42   Bezeq International
  680      275       2046         256   DFN-IP service G-WiN
 8708      272        420         242   Romania Data Systems S.A.
 3215      271       2591          93   France Telecom Transpac
 6746      271        128         249   Dynamic Network Technologies,
 8220      250        422         226   COLT Telecommunications

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

LACNIC Region per AS prefix count summary
-----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151     1165       2421         213   UniNet S.A. de C.V. 
11830      547        299           9   Instituto Costarricense de El
 7303      436        212          59   Telecom Argentina Stet-France
16814      428         27          11   NSS, S.A. 
 6471      394         85          39   ENTEL CHILE S.A. 
11172      394        115          62   Servicios Alestra S.A de C.V 
10620      352         92          26   TVCABLE BOGOTA 
14117      351         23          16   Telefonica del Sur S.A. 
22047      323        270          14   VTR PUNTO NET S.A. 
10481      301        120          10   Prima S.A. 

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

AfriNIC Region per AS prefix count summary
------------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
24863      337         52          84   LINKdotNET AS number
 3741      279        869         225   The Internet Solution 
 6713      143        135          11   Itissalat Al-MAGHRIB
24835      143         48           7   RAYA Telecom - Egypt
 2018      142        268         114   Tertiary Education Network 
33783      129          9          15   EEPAD TISP TELECOM & INTERNET
 5536      124          8          10   Internet Egypt Network
15475      101         84           4   Nile Online
33776       99          6           7   Starcomms Nigeria Limited
23889       78         24          16   MAURITIUS TELECOM

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

Global Per AS prefix count summary
----------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4755     1558        384          75   Videsh Sanchar Nigam Ltd. Aut
 7018     1436       6020         982   AT&T WorldNet Services
 4323     1386       1012         366   Time Warner Telecom
 2386     1354        634         832   AT&T Data Communications Serv
11492     1216        136          19   Cable One 
 8151     1165       2421         213   UniNet S.A. de C.V. 
 9498     1147        533          60   BHARTI BT INTERNET LTD.
 9583     1116         82         435   Sify Limited
18566     1041        296          10   Covad Communications 
 7011     1035        301         597   Citizens Utilities 

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

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

  ASN   No of nets  Net Savings Description
11492      1216        1197      Cable One 
 9498      1147        1087      BHARTI BT INTERNET LTD.
18566      1041        1031      Covad Communications 
 4323      1386        1020      Time Warner Telecom
 8151      1165         952      UniNet S.A. de C.V. 
17488       961         874      Hathway IP Over Cable Interne
 6478       909         805      AT&T Worldnet Services 
22773       845         787      Cox Communications, Inc.
19262       878         728      Verizon Global Networks 
 9583      1116         681      Sify Limited

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

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

Bad AS  Designation  Network              Transit AS  Description
15190   UNALLOCATED   63.98.176.0/24         701       UUNET Technologies, 
18506   UNALLOCATED   63.107.123.0/24      33286       Turlock Irrigation D
14699   UNALLOCATED   63.238.252.0/24      30517       Great Lakes Comnet, 
14699   UNALLOCATED   63.238.253.0/24      30517       Great Lakes Comnet, 
14699   UNALLOCATED   64.85.144.0/22       30517       Great Lakes Comnet, 
33526   UNALLOCATED   64.128.26.0/24        4323       Time Warner Telecom
14699   UNALLOCATED   65.112.79.0/24       30517       Great Lakes Comnet, 
21624   UNALLOCATED   65.163.176.0/24        701       UUNET Technologies, 
14699   UNALLOCATED   72.35.42.0/24        30517       Great Lakes Comnet, 
14699   UNALLOCATED   72.35.43.0/24        30517       Great Lakes Comnet, 

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

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

Network            Origin AS  Description
24.48.10.0/23        19548     Adelphia Business Solutions 
24.48.12.0/22        19548     Adelphia Business Solutions 
24.48.80.0/21        19548     Adelphia Business Solutions 
24.49.32.0/22        19548     Adelphia Business Solutions 
24.54.224.0/19       19548     Adelphia Business Solutions 
24.142.40.0/21        7018     AT&T WorldNet Services
24.142.160.0/19       7018     AT&T WorldNet Services
24.246.0.0/17         7018     AT&T WorldNet Services
24.246.128.0/18       7018     AT&T WorldNet Services
60.253.0.0/18        27572     Connexion by Boeing 

Complete listing at http://thyme.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       /9:9       /10:15      /11:39      /12:137     
/13:277     /14:491     /15:976     /16:9749    /17:4219    /18:7037    
/19:14993   /20:17152   /21:16168   /22:20452   /23:21553   /24:127654  
/25:873     /26:1095    /27:561     /28:96      /29:9       /30:1       
/31:0       /32:8       

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

  ASN   No of nets  Total ann.   Description
11492     1205          1216      Cable One 
 2386     1054          1354      AT&T Data Communications Serv
18566     1022          1041      Covad Communications 
 9583      963          1116      Sify Limited
 4755      919          1558      Videsh Sanchar Nigam Ltd. Aut
 7011      919          1035      Citizens Utilities 
 6478      908           909      AT&T Worldnet Services 
 9498      822          1147      BHARTI BT INTERNET LTD.
23577      806           815      Korea Telecom (ATM-MPLS)
 7018      786          1436      AT&T WorldNet Services

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

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

   4:9         8:98       12:1954     13:2        15:21       16:3      
  17:6        18:13       20:35       22:1        24:1017     25:1      
  31:1        32:61       33:4        38:383      40:65       41:444    
  44:2        47:8        52:3        55:3        56:3        57:22     
  58:511      59:416      60:407      61:981      62:1025     63:1976   
  64:3362     65:2359     66:3626     67:1063     68:638      69:2081   
  70:469      71:107      72:1489     73:7        74:805      75:170    
  76:205      77:525      78:408      79:72       80:868      81:789    
  82:607      83:346      84:445      85:1021     86:385      87:633    
  88:311      89:1100     90:43       91:972      92:108      93:54     
  95:1        96:8        97:9        98:38      114:1       115:1      
 116:498     117:239     118:69      119:109     121:416     122:667    
 123:285     124:777     125:1108    128:308     129:198     130:133    
 131:389     132:68      133:9       134:188     135:37      136:217    
 137:85      138:156     139:63      140:497     141:107     142:378    
 143:263     144:282     145:51      146:336     147:132     148:485    
 149:178     150:121     151:139     152:95      153:130     154:11     
 155:286     156:198     157:250     158:163     159:216     160:219    
 161:102     162:199     163:190     164:558     165:419     166:295    
 167:309     168:564     169:131     170:432     171:28      172:3      
 173:1       189:149     190:1356    192:5761    193:4097    194:3252   
 195:2316    196:936     198:3786    199:3209    200:5436    201:1275   
 202:7390    203:7744    204:3968    205:2064    206:2420    207:2734   
 208:3131    209:3621    210:2524    211:1020    212:1281    213:1587   
 214:439     215:41      216:4124    217:1181    218:337     219:401    
 220:970     221:408     222:308    

End of report



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