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Weekly Routing Table Report
From: Routing Analysis Role Account <cscora () apnic net>
Date: Sat, 17 Jan 2009 04:11:54 +1000 (EST)

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

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

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

Routing Table Report   04:00 +10GMT Sat 17 Jan, 2009

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

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

BGP routing table entries examined:                              277721
    Prefixes after maximum aggregation:                          132482
    Deaggregation factor:                                          2.10
    Unique aggregates announced to Internet:                     135762
Total ASes present in the Internet Routing Table:                 30352
    Prefixes per ASN:                                              9.15
Origin-only ASes present in the Internet Routing Table:           26399
Origin ASes announcing only one prefix:                           12865
Transit ASes present in the Internet Routing Table:                3953
Transit-only ASes present in the Internet Routing Table:             98
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      23
    Max AS path prepend of ASN (46211)                               20
Prefixes from unregistered ASNs in the Routing Table:               523
    Unregistered ASNs in the Routing Table:                         184
Number of 32-bit ASNs allocated by the RIRs:                         73
Prefixes from 32-bit ASNs in the Routing Table:                      12
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            283
Number of addresses announced to Internet:                   1984280064
    Equivalent to 118 /8s, 69 /16s and 182 /24s
    Percentage of available address space announced:               53.5
    Percentage of allocated address space announced:               63.3
    Percentage of available address space allocated:               84.6
    Percentage of address space in use by end-sites:               75.2
Total number of prefixes smaller than registry allocations:      136430

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

Prefixes being announced by APNIC Region ASes:                    64135
    Total APNIC prefixes after maximum aggregation:               23147
    APNIC Deaggregation factor:                                    2.77
Prefixes being announced from the APNIC address blocks:           60996
    Unique aggregates announced from the APNIC address blocks:    27679
APNIC Region origin ASes present in the Internet Routing Table:    3506
    APNIC Prefixes per ASN:                                       17.40
APNIC Region origin ASes announcing only one prefix:                956
APNIC Region transit ASes present in the Internet Routing Table:    537
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         19
Number of APNIC addresses announced to Internet:              395113632
    Equivalent to 23 /8s, 140 /16s and 244 /24s
    Percentage of available APNIC address space announced:         78.5

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, 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,
                       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:                    123561
    Total ARIN prefixes after maximum aggregation:                64986
    ARIN Deaggregation factor:                                     1.90
Prefixes being announced from the ARIN address blocks:            92979
    Unique aggregates announced from the ARIN address blocks:     35380
ARIN Region origin ASes present in the Internet Routing Table:    12731
    ARIN Prefixes per ASN:                                         7.30
ARIN Region origin ASes announcing only one prefix:                4911
ARIN Region transit ASes present in the Internet Routing Table:    1224
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          23
Number of ARIN addresses announced to Internet:               406799520
    Equivalent to 24 /8s, 63 /16s and 68 /24s
    Percentage of available ARIN address space announced:          78.2

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
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, 108/8, 173/8,
                       174/8, 184/8, 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:                     62265
    Total RIPE prefixes after maximum aggregation:                36910
    RIPE Deaggregation factor:                                     1.69
Prefixes being announced from the RIPE address blocks:            57284
    Unique aggregates announced from the RIPE address blocks:     38268
RIPE Region origin ASes present in the Internet Routing Table:    12514
    RIPE Prefixes per ASN:                                         4.58
RIPE Region origin ASes announcing only one prefix:                6573
RIPE Region transit ASes present in the Internet Routing Table:    1913
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          23
Number of RIPE addresses announced to Internet:               386225504
    Equivalent to 23 /8s, 5 /16s and 85 /24s
    Percentage of available RIPE address space announced:          88.5

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, 47104-49151
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:                   22923
    Total LACNIC prefixes after maximum aggregation:               5659
    LACNIC Deaggregation factor:                                   4.05
Prefixes being announced from the LACNIC address blocks:          21089
    Unique aggregates announced from the LACNIC address blocks:   11650
LACNIC Region origin ASes present in the Internet Routing Table:   1051
    LACNIC Prefixes per ASN:                                      20.07
LACNIC Region origin ASes announcing only one prefix:               337
LACNIC Region transit ASes present in the Internet Routing Table:   174
Average LACNIC Region AS path length visible:                       4.0
    Max LACNIC Region AS path length visible:                        17
Number of LACNIC addresses announced to Internet:              59821824
    Equivalent to 3 /8s, 144 /16s and 207 /24s
    Percentage of available LACNIC address space announced:        59.4

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:                   4336
    Total AfriNIC prefixes after maximum aggregation:              1365
    AfriNIC Deaggregation factor:                                  3.18
Prefixes being announced from the AfriNIC address blocks:          5161
    Unique aggregates announced from the AfriNIC address blocks:   2190
AfriNIC Region origin ASes present in the Internet Routing Table:   277
    AfriNIC Prefixes per ASN:                                     18.63
AfriNIC Region origin ASes announcing only one prefix:               88
AfriNIC Region transit ASes present in the Internet Routing Table:   59
Average AfriNIC Region AS path length visible:                      3.9
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:             13030656
    Equivalent to 0 /8s, 198 /16s and 213 /24s
    Percentage of available AfriNIC address space announced:       25.9

AfriNIC AS Blocks      36864-37887 & ERX transfers
AfriNIC Address Blocks  41/8, 196/8, 197/8,

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4766     1664       6411         376   Korea Telecom (KIX)
17488     1488        105          96   Hathway IP Over Cable Interne
 4755     1184        435         166   TATA Communications formerly 
 9583     1111         87         524   Sify Limited
 4134      901      16059         364   CHINANET-BACKBONE
18101      779        174          27   Reliance Infocom Ltd Internet
 4780      719        358          65   Digital United Inc.
 9498      678        297          52   BHARTI BT INTERNET LTD.
 7545      669        152          81   TPG Internet Pty Ltd
24560      660        224         181   Bharti Airtel 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
 6389     4380       3435         344   bellsouth.net, inc. 
  209     2835       4031         615   Qwest 
20115     2030       1464         746   Charter Communications 
 1785     1720        734         156   PaeTec Communications, Inc.
 4323     1611       1081         380   Time Warner Telecom
 2386     1584        714         897   AT&T Data Communications Serv
 7018     1425       5869         984   AT&T WorldNet Services
11492     1220        192          12   Cable One 
 6478     1185        293         488   AT&T Worldnet Services 
 3356     1115      10997         441   Level 3 Communications, LLC 

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
 8452      864        188           7   TEDATA
 3292      440       1765         386   TDC Tele Danmark
12479      390        578           6   Uni2 Autonomous System
30890      387         85         199   SC Kappa Invexim SRL
 3301      336       1669         302   TeliaNet Sweden
 3320      333       7065         282   Deutsche Telekom AG
 8866      332        109          22   Bulgarian Telecommunication C
 3215      330       2897          99   France Telecom Transpac
29049      325         26           3   AzerSat LLC.
35805      312         30           8   United Telecom of Georgia

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     1480       2833         231   UniNet S.A. de C.V. 
10620      697        151          74   TVCABLE BOGOTA 
11830      672        299           9   Instituto Costarricense de El
22047      565        302          14   VTR PUNTO NET S.A. 
 7303      508        253          78   Telecom Argentina Stet-France
 6471      434         94          42   ENTEL CHILE S.A. 
16814      426         27          10   NSS, S.A. 
11172      406        118          72   Servicios Alestra S.A de C.V 
28573      369        493          20   NET Servicos de Comunicao S.A
 7738      360        730          27   Telecomunicacoes da Bahia 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      593         72          40   LINKdotNET AS number
 3741      269        857         227   The Internet Solution 
20858      269         34           3   This AS will be used to conne
 2018      240        215         141   Tertiary Education Network 
33783      150         10           8   EEPAD TISP TELECOM & INTERNET
 6713      144        135          11   Itissalat Al-MAGHRIB
29571      128         15           8   Ci Telecom Autonomous system 
 5536      120          8          17   Internet Egypt Network
33776      118          6           3   Starcomms Nigeria Limited
 5713      117        555          66   Telkom SA Ltd 

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
 6389     4380       3435         344   bellsouth.net, inc. 
  209     2835       4031         615   Qwest 
20115     2030       1464         746   Charter Communications 
 1785     1720        734         156   PaeTec Communications, Inc.
 4766     1664       6411         376   Korea Telecom (KIX)
 4323     1611       1081         380   Time Warner Telecom
 2386     1584        714         897   AT&T Data Communications Serv
17488     1488        105          96   Hathway IP Over Cable Interne
 8151     1480       2833         231   UniNet S.A. de C.V. 
 7018     1425       5869         984   AT&T WorldNet Services

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

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

  ASN   No of nets  Net Savings Description
  209      2835        2220      Qwest 
 1785      1720        1564      PaeTec Communications, Inc.
17488      1488        1392      Hathway IP Over Cable Interne
 4766      1664        1288      Korea Telecom (KIX)
20115      2030        1284      Charter Communications 
 8151      1480        1249      UniNet S.A. de C.V. 
 4323      1611        1231      Time Warner Telecom
11492      1220        1208      Cable One 
18566      1060        1050      Covad Communications 
 4755      1184        1018      TATA Communications formerly 

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

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

Bad AS  Designation  Network              Transit AS  Description
16927   UNALLOCATED   12.0.252.0/23         7018       AT&T WorldNet Servic
15132   UNALLOCATED   12.9.150.0/24         7018       AT&T WorldNet Servic
32567   UNALLOCATED   12.14.170.0/24        7018       AT&T WorldNet Servic
13746   UNALLOCATED   12.24.56.0/24         7018       AT&T WorldNet Servic
32567   UNALLOCATED   12.25.107.0/24        7018       AT&T WorldNet Servic
26973   UNALLOCATED   12.39.152.0/24        7018       AT&T WorldNet Servic
26973   UNALLOCATED   12.39.154.0/23        7018       AT&T WorldNet Servic
26973   UNALLOCATED   12.39.159.0/24        7018       AT&T WorldNet Servic
32326   UNALLOCATED   12.40.49.0/24         7018       AT&T WorldNet Servic
25639   UNALLOCATED   12.41.169.0/24        7018       AT&T WorldNet Servic

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

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

Network            Origin AS  Description
24.75.116.0/22       10796     ServiceCo LLC - Road Runner 
24.75.160.0/19        7843     Adelphia Corp. 
24.246.0.0/17         7018     AT&T WorldNet Services
24.246.128.0/18       7018     AT&T WorldNet Services
41.208.128.0/18       8346     SONATEL-AS Autonomous System
41.214.0.0/17         8346     SONATEL-AS Autonomous System
41.223.108.0/22      17175     New Skies Satellites 
41.223.112.0/22       5713     Telkom SA Ltd 
41.223.132.0/24      12491     IPPlanet
41.223.133.0/24      12491     IPPlanet

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       /10:20      /11:54      /12:159     
/13:311     /14:561     /15:1108    /16:10298   /17:4523    /18:7805    
/19:16749   /20:19686   /21:19269   /22:24472   /23:24862   /24:145716  
/25:657     /26:817     /27:512     /28:98      /29:8       /30:1       
/31:0       /32:7       

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

  ASN   No of nets  Total ann.   Description
 6389     2859          4380      bellsouth.net, inc. 
  209     1578          2835      Qwest 
 4766     1397          1664      Korea Telecom (KIX)
17488     1273          1488      Hathway IP Over Cable Interne
 2386     1263          1584      AT&T Data Communications Serv
11492     1185          1220      Cable One 
 1785     1169          1720      PaeTec Communications, Inc.
20115     1104          2030      Charter Communications 
18566     1041          1060      Covad Communications 
 9583      968          1111      Sify Limited

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

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

   4:12        8:174      12:2195     13:2        15:21       16:3      
  17:5        20:36       24:1136     32:52       38:535      40:96     
  41:1468     43:1        44:2        47:9        52:3        55:3      
  56:3        57:26       58:516      59:609      60:454      61:1112   
  62:1115     63:1984     64:3405     65:2429     66:3656     67:1439   
  68:669      69:2443     70:532      71:198      72:1602     73:7      
  74:1357     75:198      76:307      77:791      78:532      79:307    
  80:959      81:845      82:580      83:389      84:598      85:1053   
  86:397      87:642      88:356      89:1374     90:44       91:1863   
  92:327      93:1071     94:921      95:187      96:97       97:166    
  98:179      99:10      110:1       111:1       112:9       113:59     
 114:156     115:203     116:1120    117:467     118:251     119:605    
 120:130     121:708     122:924     123:492     124:834     125:1274   
 128:357     129:226     130:134     131:411     132:70      133:9      
 134:326     135:35      136:219     137:136     138:145     139:92     
 140:414     141:109     142:384     143:312     144:325     145:38     
 146:372     147:143     148:609     149:224     150:134     151:209    
 152:149     153:132     154:10      155:255     156:168     157:269    
 158:161     159:279     160:277     161:139     162:261     163:143    
 164:516     165:505     166:361     167:351     168:674     169:162    
 170:465     171:37      172:10      173:161     174:28      186:1      
 187:24      189:359     190:2509    192:5822    193:4189    194:3317   
 195:2679    196:1062    198:3682    199:3310    200:5473    201:1488   
 202:7824    203:8095    204:3921    205:2168    206:2331    207:2764   
 208:3817    209:3490    210:2746    211:1169    212:1556    213:1647   
 214:67      215:29      216:4535    217:1200    218:374     219:403    
 220:1226    221:463     222:294    

End of report


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