Home page logo
/

nanog logo nanog mailing list archives

Weekly Routing Table Report
From: Routing Table Analysis <cscora () apnic net>
Date: Sat, 11 Feb 2006 04:12:40 +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

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

Routing Table Report   04:00 +10GMT Sat 11 Feb, 2006

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

BGP routing table entries examined:                              181747
    Prefixes after maximum aggregation:                          101113
    Unique aggregates announced to Internet:                      88304
Total ASes present in the Internet Routing Table:                 21484
Origin-only ASes present in the Internet Routing Table:           18665
Origin ASes announcing only one prefix:                            8867
Transit ASes present in the Internet Routing Table:                2819
Transit-only ASes present in the Internet Routing Table:             71
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      22
Prefixes from unregistered ASNs in the Routing Table:                 5
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1493620896
    Equivalent to 89 /8s, 6 /16s and 216 /24s
    Percentage of available address space announced:               40.3
    Percentage of allocated address space announced:               59.5
    Percentage of available address space allocated:               67.8
Total number of prefixes smaller than registry allocations:       88685

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

Prefixes being announced by APNIC Region ASes:                    37966
    Total APNIC prefixes after maximum aggregation:               16155
Prefixes being announced from the APNIC address blocks:           35732
    Unique aggregates announced from the APNIC address blocks:    17528
APNIC Region origin ASes present in the Internet Routing Table:    2465
APNIC Region origin ASes announcing only one prefix:                684
APNIC Region transit ASes present in the Internet Routing Table:    383
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         21
Number of APNIC addresses announced to Internet:              213088992
    Equivalent to 12 /8s, 179 /16s and 122 /24s
    Percentage of available APNIC address space announced:         66.6

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:                     95871
    Total ARIN prefixes after maximum aggregation:                56558
Prefixes being announced from the ARIN address blocks:            75188
    Unique aggregates announced from the ARIN address blocks:     28398
ARIN Region origin ASes present in the Internet Routing Table:    10507
ARIN Region origin ASes announcing only one prefix:                3936
ARIN Region transit ASes present in the Internet Routing Table:     969
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               287215360
    Equivalent to 17 /8s, 30 /16s and 143 /24s
    Percentage of available ARIN address space announced:          71.3

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
ARIN Address Blocks    24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
                       198/7, 204/6, 208/7 and 216/8

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

Prefixes being announced by RIPE Region ASes:                     35748
    Total RIPE prefixes after maximum aggregation:                24070
Prefixes being announced from the RIPE address blocks:            32766
    Unique aggregates announced from the RIPE address blocks:     22090
RIPE Region origin ASes present in the Internet Routing Table:     7629
RIPE Region origin ASes announcing only one prefix:                3985
RIPE Region transit ASes present in the Internet Routing Table:    1279
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          19
Number of RIPE addresses announced to Internet:               234152320
    Equivalent to 13 /8s, 244 /16s and 225 /24s
    Percentage of available RIPE address space announced:          69.8

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
RIPE Address Blocks    62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
                       and 217/8

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

Prefixes being announced by LACNIC Region ASes:                   10279
    Total LACNIC prefixes after maximum aggregation:               3451
Prefixes being announced from the LACNIC address blocks:           8459
    Unique aggregates announced from the LACNIC address blocks:    5044
LACNIC Region origin ASes present in the Internet Routing Table:    670
LACNIC Region origin ASes announcing only one prefix:               219
LACNIC Region transit ASes present in the Internet Routing Table:   122
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        22
Number of LACNIC addresses announced to Internet:              25382912
    Equivalent to 1 /8s, 131 /16s and 80 /24s
    Percentage of available LACNIC address space announced:        37.8

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:                   1874
    Total AfriNIC prefixes after maximum aggregation:               879
Prefixes being announced from the AfriNIC address blocks:          1247
    Unique aggregates announced from the AfriNIC address blocks:    883
AfriNIC Region origin ASes present in the Internet Routing Table:   146
AfriNIC Region origin ASes announcing only one prefix:               43
AfriNIC Region transit ASes present in the Internet Routing Table:   23
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:              3184896
    Equivalent to 0 /8s, 48 /16s and 153 /24s
    Percentage of available AfriNIC address space announced:        9.5

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      985       6480         204   CHINANET-BACKBONE
 9583      853        109          15   Sify Limited
 4766      710       3927         301   Korea Telecom (KIX)
 1221      675       1428         474   Telstra Pty Ltd
 4755      652        256          55   Videsh Sanchar Nigam Ltd. Aut
 9498      528        211          73   BHARTI BT INTERNET LTD.
 7545      517        108          70   TPG Internet Pty Ltd
17488      514         31           7   Hathway IP Over Cable Interne
17676      480       6949         104   Softbank BB Corp.
 9443      411         94          85   Primus Telecommunications
 4802      366         75         157   Wantree Development
 2907      339       1763         316   SINET Japan
 9929      335        218          50   China Netcom Corp.
18101      325         68          26   Reliance Infocom Ltd Internet
17974      319         77          38   PT TELEKOMUNIKASI INDONESIA
17557      311         25         161   Pakistan Telecom
 7474      297        211         229   SingTel Optus Pty Ltd
 4780      282        226          16   Digital United Inc.
 9837      273         78         169   Powertel Ltd
 9800      259        410          67   CHINA UNICOM

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1475       6265         955   AT&T WorldNet Services
 4323     1206        711         235   Time Warner Telecom
  721     1022      21954         309   DLA Systems Automation Center
  174      993       5788         938   Cogent Communications
 6197      980        451         508   BellSouth Network Solutions, 
19029      977        152         115   New Edge Networks 
  701      951       8064         790   UUNET Technologies, Inc. 
18566      907        272           8   Covad Communications 
 2386      890        504         665   AT&T Data Communications Serv
 1239      851       2790         611   Sprint 
 6198      695        455         240   BellSouth Network Solutions, 
  209      680       3606         536   Qwest 
20115      664        566         355   Charter Communications 
11492      628         81          12   Cable One 
22773      627       1479          38   Cox Communications, Inc.
19262      620       1793         152   Verizon Global Networks 
  855      573        244          64   Canadian Research Network 
  852      572       1092         381   Telus Advanced Communications
19916      563         49          54   OLM LLC 
 3602      522        127         106   Sprint Canada, Inc. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      588       1954         465   UUNET - Commercial IP service
 3301      305       1071         290   TeliaNet Sweden
 3352      301       1484          33   Ibernet, Internet Access Netw
 3320      281       3477         235   Deutsche Telekom AG
 8220      275        474         269   COLT Telecommunications
  680      242       2025         239   DFN-IP service G-WiN
 3246      229        487         219   Song Networks
 8708      222        274         205   Romania Data Systems S.A.
 6746      221         85         193   Dynamic Network Technologies,
 9121      204        913          26   TTnet Autonomous System
 1257      195        712         173   SWIPnet Swedish IP Network
 3269      185       1925          70   TELECOM ITALIA
 5515      177        840         125   Sonera Solution Autonomous Sy
  786      173       1794         173   The JANET IP Service
 3215      173       1422          84   France Telecom Transpac
 8866      172         37          13   Bulgarian Telecommunication C
24863      168         38           9   LINKdotNET AS number
 3300      166        171          94   AUCS Communications Services 
 5400      165        328         135   BT Ignite European Backbone
 6830      163        733          34   UPC Distribution Services

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      575       1049         219   UniNet S.A. de C.V. 
22047      383        142          10   VTR PUNTO NET S.A. 
11172      305        110          78   Servicios Alestra S.A de C.V 
16814      295         18           7   NSS, S.A. 
14117      184         11           6   Telefonica del Sur S.A. 
 7303      156         74          17   Telecom Argentina Stet-France
 6147      154        126          22   Telefonica Del Peru 
13999      136         84          10   Mega Cable S.A. de C.V. 
11556      130         64           3   Cable-Wireless Panama 
19169      123          8          30   Telconet 
10481      121         48           8   Prima S.A. 
21826      116         15          19   INTERCABLE 
 5639      112         12           9   Telecommunications Services o
 6505      108         88          80   Global One Communicaoes Ltda 
 6503      101        147          72   AVANTEL, S.A. 
18822       99          8          10   TELEFONICA MANQUEHUE 
 7315       96          6           3   Grupo Rey Moreno 
25620       96          6           3   COTAS LTDA 
11311       95          8          23   Sinectis S.A. 
14522       95         12           8   SatNet S.A. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      278        819         234   The Internet Solution 
 8452      155         60           7   TEDATA
 5536      122          8          16   Internet Egypt Network
 2018      117        298         103   Tertiary Education Network 
15475      102         84           4   Nile Online
 2905       74        155          67   The Internetworking Company o
 6713       73         87          11   Itissalat Al-MAGHRIB
20928       58         16           2   Noor Advanced Technologies AS
24835       58         50           7   RAYA Telecom - Egypt
 5713       38        166          34   Telkom SA Ltd 
15706       31          8           3   Sudatel Internet Exchange Aut
33774       30          7          21   AS Number for Telecom Algeria
12455       28          6           5   Jambonet Autonomous system
23889       25          7          10   MAURITIUS TELECOM
 8524       23          1           4   AUCEGYPT Autonomous System
16637       23         10          21   Johnnic e-Ventures 
10798       22          1          13   Standard Bank of South Africa
 8346       21         14          18   SONATEL-AS Autonomous System
21280       21          4           4   Swift Global Kenya Ltd.Is an 
12258       17          3          11   Vodacom Internet Company 

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

  ASN   No of nets  Net Savings Description
 4323      1206         971      Time Warner Telecom
18566       907         899      Covad Communications 
19029       977         862      New Edge Networks 
 9583       853         838      Sify Limited
 4134       985         781      CHINANET-BACKBONE
  721      1022         713      DLA Systems Automation Center
11492       628         616      Cable One 
 4755       652         597      Videsh Sanchar Nigam Ltd. Aut
22773       627         589      Cox Communications, Inc.
  855       573         509      Canadian Research Network 
19916       563         509      OLM LLC 
17488       514         507      Hathway IP Over Cable Interne
 5668       517         493      CenturyTel Internet Holdings,
 6197       980         472      BellSouth Network Solutions, 
19262       620         468      Verizon Global Networks 
 6198       695         455      BellSouth Network Solutions, 
 9498       528         455      BHARTI BT INTERNET LTD.
 7545       517         447      TPG Internet Pty Ltd
 7757       461         442      AT&T Broadband 
 3602       522         416      Sprint Canada, Inc. 

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

Bad AS  Designation  Network              Transit AS  Description
65211   PRIVATE       125.64.3.0/24         4134       CHINANET-BACKBONE
65005   PRIVATE       159.153.148.0/22     24989       IX Europe Frankfurt 
64811   PRIVATE       202.127.124.0/24     24405       Beijing CJWX Communi
65505   PRIVATE       206.252.200.192/27    8002       Stealth Communicatio
65518   PRIVATE       211.144.192.0/19     24421       *

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
192.43.230.0/24       7575     Australian Academic and Rease
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 
192.72.0.0/18         4780     Digital United Inc.
192.72.0.0/16         4780     Digital United Inc.
192.84.205.0/24        719     LANLINK autonomous system
192.119.135.0/24       270     NASA 
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        /8:18       /9:9       /10:8       /11:22      /12:87      
/13:199     /14:349     /15:694     /16:8701    /17:3067    /18:5063    
/19:11275   /20:12462   /21:10873   /22:13874   /23:15104   /24:98949   
/25:343     /26:266     /27:201     /28:60      /29:25      /30:54      
/31:3       /32:41      

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

  ASN   No of nets  Total ann.   Description
19029      899           977      New Edge Networks 
18566      890           907      Covad Communications 
 6197      785           980      BellSouth Network Solutions, 
 7018      754          1475      AT&T WorldNet Services
 9583      672           853      Sify Limited
 2386      621           890      AT&T Data Communications Serv
11492      620           628      Cable One 
 4323      582          1206      Time Warner Telecom
 6198      560           695      BellSouth Network Solutions, 
19916      557           563      OLM LLC 
 4766      514           710      Korea Telecom (KIX)
  855      445           573      Canadian Research Network 
 7757      443           461      AT&T Broadband 
 7011      423           492      Citizens Utilities 
 5668      403           517      CenturyTel Internet Holdings,
  702      372           588      UUNET - Commercial IP service
 1239      371           851      Sprint 
15270      341           370      PaeTec.net -a division of Pae
 6517      340           367      Yipes Communications, Inc. 
22773      328           627      Cox Communications, Inc.

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

   4:3         8:42       12:1643     13:1        15:12       16:3      
  17:3        18:4        20:44       24:864      25:1        30:2      
  32:66       38:196      40:53       44:3        47:3        52:4      
  55:1        56:3        57:33       58:115      59:160      60:180    
  61:798      62:769      63:1895     64:3051     65:2257     66:3072   
  67:579      68:672      69:1434     70:308      71:51       72:622    
  73:23       74:5        80:757      81:576      82:507      83:360    
  84:344      85:422      86:289      87:166      88:21       89:22     
 124:12      125:266     128:148     129:173     130:107     131:314    
 132:32      133:7       134:146     135:46      136:169     137:60     
 138:187     139:85      140:388     141:133     142:414     143:144    
 144:224     145:39      146:307     147:136     148:321     149:186    
 150:114     151:73      152:62      153:103     154:6       155:186    
 156:95      157:121     158:158     159:180     160:88      161:68     
 162:218     163:142     164:174     165:203     166:147     167:236    
 168:473     169:140     170:317     171:12      190:30      192:5769   
 193:3363    194:2507    195:1765    196:759     198:3904    199:3258   
 200:4192    201:592     202:6442    203:6786    204:3882    205:2093   
 206:2434    207:2929    208:1993    209:3855    210:1939    211:813    
 212:1290    213:1446    214:332     215:40      216:4087    217:1152   
 218:238     219:135     220:635     221:341     222:149    

End of report


  By Date           By Thread  

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