[afnog] [SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Sep 19 18:09:02 UTC 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 20 Sep, 2008

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

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

BGP routing table entries examined:                              269427
    Prefixes after maximum aggregation:                          129901
    Deaggregation factor:                                          2.07
    Unique aggregates announced to Internet:                     131012
Total ASes present in the Internet Routing Table:                 29274
    Prefixes per ASN:                                              9.20
Origin-only ASes present in the Internet Routing Table:           25443
Origin ASes announcing only one prefix:                           12385
Transit ASes present in the Internet Routing Table:                3831
Transit-only ASes present in the Internet Routing Table:             82
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      26
    Max AS path prepend of ASN ( 3816)                               15
Prefixes from unregistered ASNs in the Routing Table:               558
    Unregistered ASNs in the Routing Table:                         209
Number of 32-bit ASNs allocated by the RIRs:                         60
Prefixes from 32-bit ASNs in the Routing Table:                       8
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            755
Number of addresses announced to Internet:                   1921880352
    Equivalent to 114 /8s, 141 /16s and 145 /24s
    Percentage of available address space announced:               51.9
    Percentage of allocated address space announced:               63.0
    Percentage of available address space allocated:               82.3
    Percentage of address space in use by end-sites:               73.6
Total number of prefixes smaller than registry allocations:      132145

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

Prefixes being announced by APNIC Region ASes:                    62233
    Total APNIC prefixes after maximum aggregation:               22899
    APNIC Deaggregation factor:                                    2.72
Prefixes being announced from the APNIC address blocks:           59152
    Unique aggregates announced from the APNIC address blocks:    26429
APNIC Region origin ASes present in the Internet Routing Table:    3387
    APNIC Prefixes per ASN:                                       17.46
APNIC Region origin ASes announcing only one prefix:                905
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:                         18
Number of APNIC addresses announced to Internet:              376338720
    Equivalent to 22 /8s, 110 /16s and 121 /24s
    Percentage of available APNIC address space announced:         80.1

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, 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:                    122394
    Total ARIN prefixes after maximum aggregation:                64619
    ARIN Deaggregation factor:                                     1.89
Prefixes being announced from the ARIN address blocks:            91649
    Unique aggregates announced from the ARIN address blocks:     35095
ARIN Region origin ASes present in the Internet Routing Table:    12444
    ARIN Prefixes per ASN:                                         7.36
ARIN Region origin ASes announcing only one prefix:                4804
ARIN Region transit ASes present in the Internet Routing Table:    1200
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          16
Number of ARIN addresses announced to Internet:               364358112
    Equivalent to 21 /8s, 183 /16s and 169 /24s
    Percentage of available ARIN address space announced:          74.9

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
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, 173/8, 174/8,
                       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:                     58324
    Total RIPE prefixes after maximum aggregation:                35258
    RIPE Deaggregation factor:                                     1.65
Prefixes being announced from the RIPE address blocks:            53463
    Unique aggregates announced from the RIPE address blocks:     35860
RIPE Region origin ASes present in the Internet Routing Table:    11903
    RIPE Prefixes per ASN:                                         4.49
RIPE Region origin ASes announcing only one prefix:                6267
RIPE Region transit ASes present in the Internet Routing Table:    1815
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          26
Number of RIPE addresses announced to Internet:               372326720
    Equivalent to 22 /8s, 49 /16s and 65 /24s
    Percentage of available RIPE address space announced:          85.4

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:                   21824
    Total LACNIC prefixes after maximum aggregation:               5394
    LACNIC Deaggregation factor:                                   4.05
Prefixes being announced from the LACNIC address blocks:          20024
    Unique aggregates announced from the LACNIC address blocks:   11116
LACNIC Region origin ASes present in the Internet Routing Table:    998
    LACNIC Prefixes per ASN:                                      20.06
LACNIC Region origin ASes announcing only one prefix:               329
LACNIC Region transit ASes present in the Internet Routing Table:   172
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        21
Number of LACNIC addresses announced to Internet:              56720896
    Equivalent to 3 /8s, 97 /16s and 126 /24s
    Percentage of available LACNIC address space announced:        56.3

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:                   4094
    Total AfriNIC prefixes after maximum aggregation:              1267
    AfriNIC Deaggregation factor:                                  3.23
Prefixes being announced from the AfriNIC address blocks:          4413
    Unique aggregates announced from the AfriNIC address blocks:   2040
AfriNIC Region origin ASes present in the Internet Routing Table:   257
    AfriNIC Prefixes per ASN:                                     17.17
AfriNIC Region origin ASes announcing only one prefix:               80
AfriNIC Region transit ASes present in the Internet Routing Table:   54
Average AfriNIC Region AS path length visible:                      3.9
    Max AfriNIC Region AS path length visible:                       16
Number of AfriNIC addresses announced to Internet:             12729088
    Equivalent to 0 /8s, 194 /16s and 59 /24s
    Percentage of available AfriNIC address space announced:       37.9

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     1721        538         181   Videsh Sanchar Nigam Ltd. Aut
17488     1384         94         101   Hathway IP Over Cable Interne
 9583     1107         86         472   Sify Limited
 4766      875       6407         359   Korea Telecom (KIX)
 4134      842      13651         345   CHINANET-BACKBONE
23577      819         35         695   Korea Telecom (ATM-MPLS)
18101      766        152          51   Reliance Infocom Ltd Internet
 4780      715        353          61   Digital United Inc.
 9498      677        291          54   BHARTI BT INTERNET LTD.
 4808      629       1156         138   CNCGROUP IP network: China169

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     4292       3416         339   bellsouth.net, inc. 
  209     2927       4001         618   Qwest 
 6298     1980        316         736   Cox Communicatons 
20115     1689       1428         713   Charter Communications 
 1785     1656        710         156   AppliedTheory Corporation 
 2386     1550        691         892   AT&T Data Communications Serv
 4323     1516       1065         368   Time Warner Telecom
 7018     1402       5802         973   AT&T WorldNet Services
11492     1217        152          11   Cable One 
 6478     1169        241         185   AT&T Worldnet Services 

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      421       1777         378   TDC Tele Danmark
 3301      332       1444         303   TeliaNet Sweden
30890      329         87         175   SC Kappa Invexim SRL
 3215      327       2756         106   France Telecom Transpac
 3320      324       7063         273   Deutsche Telekom AG
 8866      319         77          21   Bulgarian Telecommunication C
 8452      316        188          11   TEDATA
 5462      296        794          27   Telewest Broadband
 8551      287        270          37   Bezeq International
  680      275       2047         265   DFN-IP service G-WiN

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     1739       2877         226   UniNet S.A. de C.V. 
11830      668        299           9   Instituto Costarricense de El
22047      564        270          14   VTR PUNTO NET S.A. 
 7303      490        241          70   Telecom Argentina Stet-France
10620      429        105          60   TVCABLE BOGOTA 
16814      426         27          10   NSS, S.A. 
 6471      420         85          48   ENTEL CHILE S.A. 
11172      409        118          72   Servicios Alestra S.A de C.V 
28573      351        443          28   NET Servicos de Comunicao S.A
14117      345         23           9   Telefonica del Sur 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      516         67          32   LINKdotNET AS number
20858      403         34           3   EgyNet
 3741      265        855         223   The Internet Solution 
 2018      232        215         139   Tertiary Education Network 
 6713      143        135          11   Itissalat Al-MAGHRIB
33783      137         10          13   EEPAD TISP TELECOM & INTERNET
 5536      120          8          17   Internet Egypt Network
 5713      118        555          68   Telkom SA Ltd 
33776      115          6           3   Starcomms Nigeria Limited
29571      107         13           8   Ci Telecom Autonomous system 

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     4292       3416         339   bellsouth.net, inc. 
  209     2927       4001         618   Qwest 
 6298     1980        316         736   Cox Communicatons 
 8151     1739       2877         226   UniNet S.A. de C.V. 
 4755     1721        538         181   Videsh Sanchar Nigam Ltd. Aut
20115     1689       1428         713   Charter Communications 
 1785     1656        710         156   AppliedTheory Corporation 
 2386     1550        691         892   AT&T Data Communications Serv
 4323     1516       1065         368   Time Warner Telecom
 7018     1402       5802         973   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      2927        2309      Qwest 
 4755      1721        1540      Videsh Sanchar Nigam Ltd. Aut
 8151      1739        1513      UniNet S.A. de C.V. 
 1785      1656        1500      AppliedTheory Corporation 
17488      1384        1283      Hathway IP Over Cable Interne
 6298      1980        1244      Cox Communicatons 
11492      1217        1206      Cable One 
 4323      1516        1148      Time Warner Telecom
18566      1049        1039      Covad Communications 
 6478      1169         984      AT&T Worldnet Services 

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
22492   UNALLOCATED   12.2.46.0/24          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
13632   UNALLOCATED   12.20.55.0/24         6517       Yipes Communications
13746   UNALLOCATED   12.24.56.0/24         7018       AT&T WorldNet Servic
32567   UNALLOCATED   12.25.107.0/24        7018       AT&T WorldNet Servic
13632   UNALLOCATED   12.31.25.0/24         6517       Yipes Communications
26973   UNALLOCATED   12.39.152.0/24        7018       AT&T WorldNet Servic
26973   UNALLOCATED   12.39.154.0/23        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. 
24.142.40.0/21        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
62.61.220.0/24       24974     Tachyon Europe BV - Wireless 
63.140.213.0/24      22555     Universal Talkware Corporatio
63.143.71.0/24         701     UUNET Technologies, Inc. 
63.143.115.0/24        701     UUNET Technologies, Inc. 

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       /10:17      /11:45      /12:147     
/13:294     /14:529     /15:1072    /16:10090   /17:4390    /18:7733    
/19:16281   /20:19082   /21:18612   /22:23366   /23:24446   /24:140670  
/25:791     /26:968     /27:760     /28:89      /29:9       /30:1       
/31:0       /32:7       

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

  ASN   No of nets  Total ann.   Description
 6389     2846          4292      bellsouth.net, inc. 
 6298     1955          1980      Cox Communicatons 
  209     1690          2927      Qwest 
 2386     1231          1550      AT&T Data Communications Serv
11492     1193          1217      Cable One 
17488     1191          1384      Hathway IP Over Cable Interne
 1785     1125          1656      AppliedTheory Corporation 
 6478     1062          1169      AT&T Worldnet Services 
 4755     1057          1721      Videsh Sanchar Nigam Ltd. Aut
18566     1030          1049      Covad Communications 

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

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

   4:8         8:139      12:2145     13:2        15:20       16:3      
  17:5        18:13       20:35       24:1087     32:59       38:494    
  40:91       41:723      43:1        44:2        47:12       52:3      
  55:3        56:3        57:26       58:527      59:520      60:451    
  61:950      62:1224     63:2033     64:3215     65:2381     66:3478   
  67:1243     68:780      69:2308     70:848      71:171      72:2026   
  73:7        74:1183     75:166      76:265      77:780      78:831    
  79:256      80:948      81:852      82:584      83:372      84:577    
  85:1018     86:399      87:713      88:336      89:1354     90:21     
  91:1497     92:264      93:836      94:147      96:65       97:80     
  98:321      99:8       114:105     115:47      116:987     117:365    
 118:229     119:500     120:86      121:593     122:853     123:443    
 124:857     125:1194    128:357     129:201     130:134     131:411    
 132:70      133:9       134:178     135:32      136:223     137:96     
 138:142     139:92      140:503     141:102     142:408     143:300    
 144:325     145:51      146:370     147:156     148:516     149:209    
 150:128     151:181     152:147     153:136     154:10      155:281    
 156:175     157:299     158:170     159:300     160:275     161:137    
 162:255     163:150     164:515     165:499     166:367     167:331    
 168:631     169:143     170:444     171:33      172:10      173:33     
 186:1       187:10      188:1       189:608     190:2262    192:5751   
 193:4144    194:3259    195:2579    196:996     198:3724    199:3297   
 200:5566    201:1505    202:7851    203:8093    204:3946    205:2136   
 206:2356    207:2731    208:3600    209:3411    210:2604    211:1088   
 212:1453    213:1622    214:178     215:50      216:4357    217:1213   
 218:345     219:437     220:1064    221:415     222:314    

End of report
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