North American Network Operators Group

Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical

Weekly Routing Table Report

  • From: Routing Analysis Role Account
  • Date: Fri Dec 22 13:08:21 2006

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 [email protected]

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

If you have any comments please contact Philip Smith <[email protected]>.

Routing Table Report   04:00 +10GMT Sat 23 Dec, 2006

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

BGP routing table entries examined:                              206421
    Prefixes after maximum aggregation:                          112114
    Unique aggregates announced to Internet:                     100639
Total ASes present in the Internet Routing Table:                 23975
Origin-only ASes present in the Internet Routing Table:           20911
Origin ASes announcing only one prefix:                           10073
Transit ASes present in the Internet Routing Table:                3064
Transit-only ASes present in the Internet Routing Table:             75
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      32
    Max AS path prepend of ASN (36728)                               27
Prefixes from unregistered ASNs in the Routing Table:                 2
    Unregistered ASNs in the Routing Table:                           4
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:              9
Number of addresses announced to Internet:                   1647917228
    Equivalent to 98 /8s, 57 /16s and 56 /24s
    Percentage of available address space announced:               44.5
    Percentage of allocated address space announced:               63.1
    Percentage of available address space allocated:               70.5
Total number of prefixes smaller than registry allocations:      105039

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

Prefixes being announced by APNIC Region ASes:                    45880
    Total APNIC prefixes after maximum aggregation:               18689
Prefixes being announced from the APNIC address blocks:           43436
    Unique aggregates announced from the APNIC address blocks:    19174
APNIC Region origin ASes present in the Internet Routing Table:    2806
APNIC Region origin ASes announcing only one prefix:                794
APNIC Region transit ASes present in the Internet Routing Table:    421
Average APNIC Region AS path length visible:                        3.7
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              272505184
    Equivalent to 16 /8s, 62 /16s and 25 /24s
    Percentage of available APNIC address space announced:         85.2

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911
APNIC Address Blocks   58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7
                       210/7, 218/7, 220/7 and 222/8

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

Prefixes being announced by ARIN Region ASes:                    101998
    Total ARIN prefixes after maximum aggregation:                60492
Prefixes being announced from the ARIN address blocks:            75228
    Unique aggregates announced from the ARIN address blocks:     28684
ARIN Region origin ASes present in the Internet Routing Table:    11238
ARIN Region origin ASes announcing only one prefix:                4287
ARIN Region transit ASes present in the Internet Routing Table:    1023
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          29
Number of ARIN addresses announced to Internet:               311044480
    Equivalent to 18 /8s, 138 /16s and 41 /24s
    Percentage of available ARIN address space announced:          68.7

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, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6,
                       208/7 and 216/8

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

Prefixes being announced by RIPE Region ASes:                     42677
    Total RIPE prefixes after maximum aggregation:                27973
Prefixes being announced from the RIPE address blocks:            39469
    Unique aggregates announced from the RIPE address blocks:     26255
RIPE Region origin ASes present in the Internet Routing Table:     8933
RIPE Region origin ASes announcing only one prefix:                4693
RIPE Region transit ASes present in the Internet Routing Table:    1424
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          32
Number of RIPE addresses announced to Internet:               281860996
    Equivalent to 16 /8s, 204 /16s and 219 /24s
    Percentage of available RIPE address space announced:          76.4

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
                       40960-43007
RIPE Address Blocks    62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7,
                       212/7 and 217/8

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

Prefixes being announced by LACNIC Region ASes:                   13344
    Total LACNIC prefixes after maximum aggregation:               4015
Prefixes being announced from the LACNIC address blocks:          11392
    Unique aggregates announced from the LACNIC address blocks:    7008
LACNIC Region origin ASes present in the Internet Routing Table:    753
LACNIC Region origin ASes announcing only one prefix:               248
LACNIC Region transit ASes present in the Internet Routing Table:   132
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        20
Number of LACNIC addresses announced to Internet:              35471360
    Equivalent to 2 /8s, 29 /16s and 64 /24s
    Percentage of available LACNIC address space announced:        52.9

LACNIC AS Blocks       26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks  189/8, 190/8, 200/7

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

Prefixes being announced by AfriNIC Region ASes:                   2520
    Total AfriNIC prefixes after maximum aggregation:               945
Prefixes being announced from the AfriNIC address blocks:          1769
    Unique aggregates announced from the AfriNIC address blocks:   1127
AfriNIC Region origin ASes present in the Internet Routing Table:   170
AfriNIC Region origin ASes announcing only one prefix:               51
AfriNIC Region transit ASes present in the Internet Routing Table:   31
Average AfriNIC Region AS path length visible:                      3.6
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:              5324544
    Equivalent to 0 /8s, 81 /16s and 63 /24s
    Percentage of available AfriNIC address space announced:       15.9

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
 4134     1251       8623         258   CHINANET-BACKBONE
 4755     1055        383          64   Videsh Sanchar Nigam Ltd. Aut
 9583     1043         87         118   Sify Limited
 9498      895        211          63   BHARTI BT INTERNET LTD.
23577      772         34         700   KRNIC
 4766      752       4946         307   Korea Telecom (KIX)
 1221      572       1698         443   Telstra Pty Ltd
17488      565         35          21   Hathway IP Over Cable Interne
 7545      554        126          74   TPG Internet Pty Ltd
17676      503      10935          66   Softbank BB Corp.
18101      493         87          23   Reliance Infocom Ltd Internet
 9443      442        111          74   Primus Telecommunications
 9942      439         81         132   COMindico Australia
 4812      437        758          69   China Telecom (Shanghai)
17849      411         36         126   Telecommunications Technology
 4802      405         86         146   Wantree Development
17557      365         35         173   Pakistan Telecom
17974      364        129          12   PT TELEKOMUNIKASI INDONESIA
 2907      332       1749         309   SINET Japan
 4837      329       3847         145   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1540       6159        1001   AT&T WorldNet Services
 2386     1110        586         735   AT&T Data Communications Serv
 4323     1057        820         299   Time Warner Telecom
 6197     1018        636         501   BellSouth Network Solutions, 
18566      983        272           8   Covad Communications 
  174      965       6809         877   Cogent Communications
  701      936       6691         760   UUNET Technologies, Inc. 
11492      863         98          13   Cable One 
 1239      827       2730         578   Sprint 
19262      789       2496         181   Verizon Global Networks 
  721      779      21885         292   DLA Systems Automation Center
20115      767        666         406   Charter Communications 
  209      713       3763         563   Qwest 
22773      709       1744          40   Cox Communications, Inc.
 7011      687        211         432   Citizens Utilities 
  852      603       1092         391   Telus Advanced Communications
19916      567         48          57   OLM LLC 
 6198      548        535         257   BellSouth Network Solutions, 
 5668      546        161          19   CenturyTel Internet Holdings,
  855      538        250          73   Canadian Research Network 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      546       1912         425   UUNET - Commercial IP service
 3301      310       1199         292   TeliaNet Sweden
 3320      297       4993         245   Deutsche Telekom AG
24863      294         44          26   LINKdotNET AS number
 8220      273        474         264   COLT Telecommunications
 6746      264         93         242   Dynamic Network Technologies,
  680      253       2041         248   DFN-IP service G-WiN
 9116      233        134          23   Goldenlines main autonomous s
 8708      231        282         218   Romania Data Systems S.A.
 3215      230       2104          96   France Telecom Transpac
 1257      214       1069         171   SWIPnet Swedish IP Network
 3269      210       2373          73   TELECOM ITALIA
30890      207         19          89   SC Kappa Invexim SRL
 5416      206         13           9   BATELCO-BH
 3246      202        353         192   Song Networks
 8551      198        197          24   Bezeq International
 3300      180        171          97   AUCS Communications Services 
 3352      175       1767          31   Ibernet, Internet Access Netw
12479      175        578           6   Uni2 Autonomous System
  786      172       1795         172   The JANET IP Service

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      782       1937         205   UniNet S.A. de C.V. 
11830      482        299          19   Instituto Costarricense de El
11172      385        104          74   Servicios Alestra S.A de C.V 
16814      329         20           8   NSS, S.A. 
22047      307        206          11   VTR PUNTO NET S.A. 
14117      258         16          13   Telefonica del Sur S.A. 
 6471      257         74          31   ENTEL CHILE S.A. 
 7303      226        101          38   Telecom Argentina Stet-France
 6503      217        170          94   AVANTEL, S.A. 
 6147      209        150          20   Telefonica Del Peru 
11556      204        101           6   Cable-Wireless Panama 
10481      181         72           8   Prima S.A. 
21826      156         20          35   INTERCABLE 
23216      146         19          43   RAMtelecom Telecomunicaciones
 7910      144         10          31   ANDINET ON LINE 
19169      139          9          22   Telconet 
19429      138         84          34   E.T.B. 
18822      129          8          10   TELEFONICA MANQUEHUE 
14522      128         20           9   SatNet S.A. 
 7738      116        442          21   Telecomunicacoes da Bahia S.A

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      289        868         231   The Internet Solution 
 8452      225         60           7   TEDATA
15475      147         84           4   Nile Online
 6713      144        135          11   Itissalat Al-MAGHRIB
 2018      136        297         111   Tertiary Education Network 
 5536      124          8          11   Internet Egypt Network
24835      116         48           6   RAYA Telecom - Egypt
33783      109          6           4   EEPAD TISP TELECOM & INTERNET
 2905       84        175          73   The Internetworking Company o
 2561       60          6           2   Egyptian Universities Network
15706       55         12           4   Sudatel Internet Exchange Aut
23889       52         13          15   MAURITIUS TELECOM
 5713       41        294          34   Telkom SA Ltd 
12455       39          6           3   Jambonet Autonomous system
33774       38         12          22   AS Number for Telecom Algeria
16637       33         21          25   Johnnic e-Ventures 
 8524       30          2           6   AUCEGYPT Autonomous System
15804       27          2           1   AS of The Way Out Internet So
33776       25          2           9   Starcomms Nigeria Limited
10798       23          1          14   Standard Bank of South Africa

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

  ASN   No of nets  Net Savings Description
 4134      1251         993      CHINANET-BACKBONE
 4755      1055         991      Videsh Sanchar Nigam Ltd. Aut
18566       983         975      Covad Communications 
 9583      1043         925      Sify Limited
11492       863         850      Cable One 
 9498       895         832      BHARTI BT INTERNET LTD.
 4323      1057         758      Time Warner Telecom
22773       709         669      Cox Communications, Inc.
19262       789         608      Verizon Global Networks 
 8151       782         577      UniNet S.A. de C.V. 
17488       565         544      Hathway IP Over Cable Interne
 5668       546         527      CenturyTel Internet Holdings,
 6197      1018         517      BellSouth Network Solutions, 
19916       567         510      OLM LLC 
  721       779         487      DLA Systems Automation Center
 7545       554         480      TPG Internet Pty Ltd
18101       493         470      Reliance Infocom Ltd Internet
  855       538         465      Canadian Research Network 
11830       482         463      Instituto Costarricense de El
15270       494         460      PaeTec.net -a division of Pae

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

Bad AS  Designation  Network              Transit AS  Description
65124   PRIVATE       193.110.52.0/24      24652       Juniper Networks, Eu
24409   UNALLOCATED   203.119.29.0/24       9808       Guangdong Mobile Com

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

Network            Origin AS  Description
132.0.0.0/10           721     DLA Systems Automation Center
137.0.0.0/13           721     DLA Systems Automation Center
158.0.0.0/13           721     DLA Systems Automation Center
172.33.1.0/24         7018     AT&T WorldNet Services
192.0.10.0/24         9498     BHARTI BT INTERNET LTD.
192.44.0.0/24         5501     Fraunhofer Gesellschaft
192.44.0.0/19          702     UUNET - Commercial IP service
192.70.164.0/24      25689     National Research Council of 
192.172.0.0/19         721     DLA Systems Automation Center

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:19       /9:10      /10:13      /11:30      /12:113     
/13:228     /14:405     /15:798     /16:9091    /17:3640    /18:5901    
/19:12803   /20:14453   /21:12863   /22:16392   /23:17890   /24:110104  
/25:628     /26:459     /27:358     /28:70      /29:43      /30:87      
/31:0       /32:23      

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

  ASN   No of nets  Total ann.   Description
18566      966           983      Covad Communications 
 9583      872          1043      Sify Limited
11492      849           863      Cable One 
 7018      831          1540      AT&T WorldNet Services
 2386      827          1110      AT&T Data Communications Serv
 6197      794          1018      BellSouth Network Solutions, 
23577      758           772      KRNIC
 7011      592           687      Citizens Utilities 
19916      562           567      OLM LLC 
 4766      561           752      Korea Telecom (KIX)
 9498      559           895      BHARTI BT INTERNET LTD.
 4755      511          1055      Videsh Sanchar Nigam Ltd. Aut
15270      464           494      PaeTec.net -a division of Pae
  855      435           538      Canadian Research Network 
18101      427           493      Reliance Infocom Ltd Internet
 5668      419           546      CenturyTel Internet Holdings,
 1239      409           827      Sprint 
17849      397           411      Telecommunications Technology
33588      396           418      Bresnan Communications, LLC. 
17488      388           565      Hathway IP Over Cable Interne

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

   4:9         8:61        9:1        12:1653     13:1        15:15     
  16:3        17:3        18:5        20:34       24:854      25:1      
  32:55       38:273      40:57       41:55       44:2        47:10     
  52:4        53:1        55:1        56:3        57:25       58:269    
  59:354      60:221      61:971      62:1055     63:1898     64:3189   
  65:2297     66:3103     67:692      68:655      69:1697     70:403    
  71:114      72:1104     74:120      75:49       76:16       80:814    
  81:759      82:656      83:390      84:453      85:770      86:404    
  87:455      88:255      89:713      90:1        91:106      97:1      
 121:111     122:43      123:7       124:510     125:736     128:303    
 129:219     130:133     131:317     132:48      133:9       134:177    
 135:43      136:180     137:114     138:189     139:51      140:528    
 141:134     142:347     143:213     144:262     145:67      146:320    
 147:141     148:369     149:171     150:111     151:118     152:89     
 153:118     154:5       155:247     156:149     157:152     158:166    
 159:140     160:99      161:88      162:224     163:160     164:239    
 165:236     166:243     167:282     168:481     169:122     170:377    
 171:12      172:1       189:29      190:305     192:5730    193:3613   
 194:2866    195:2169    196:927     198:3766    199:3272    200:4553   
 201:943     202:7030    203:7216    204:3959    205:2093    206:2431   
 207:2910    208:2370    209:3581    210:2239    211:880     212:1327   
 213:1442    214:385     215:39      216:4091    217:1156    218:338    
 219:254     220:829     221:381     222:269    

End of report
Report Website: http://thyme.apnic.net