[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Oct 5 18:03:06 UTC 2007


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 06 Oct, 2007

Report Website: http://thyme.apnic.net
This report:    http://thyme.apnic.net/ap-data/2007/10/06/0400

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

BGP routing table entries examined:                              233905
    Prefixes after maximum aggregation:                          121328
    Deaggregation factor:                                          1.93
    Unique aggregates announced to Internet:                     113794
Total ASes present in the Internet Routing Table:                 26383
    Prefixes per ASN:                                              8.87
Origin-only ASes present in the Internet Routing Table:           22949
Origin ASes announcing only one prefix:                           11201
Transit ASes present in the Internet Routing Table:                3434
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:                                      20
    Max AS path prepend of ASN (35389)                               16
Prefixes from unregistered ASNs in the Routing Table:                27
    Unregistered ASNs in the Routing Table:                           7
Prefixes from 32-bit ASNs in the Routing Table:                       7
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1790219104
    Equivalent to 106 /8s, 180 /16s and 147 /24s
    Percentage of available address space announced:               48.3
    Percentage of allocated address space announced:               62.5
    Percentage of available address space allocated:               77.3
Total number of prefixes smaller than registry allocations:      108143

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

Prefixes being announced by APNIC Region ASes:                    54790
    Total APNIC prefixes after maximum aggregation:               21053
    APNIC Deaggregation factor:                                    2.60
Prefixes being announced from the APNIC address blocks:           51718
    Unique aggregates announced from the APNIC address blocks:    22910
APNIC Region origin ASes present in the Internet Routing Table:    3070
    APNIC Prefixes per ASN:                                       16.85
APNIC Region origin ASes announcing only one prefix:                819
APNIC Region transit ASes present in the Internet Routing Table:    469
Average APNIC Region AS path length visible:                        3.6
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              320986784
    Equivalent to 19 /8s, 33 /16s and 222 /24s
    Percentage of available APNIC address space announced:         79.5

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, 116/6, 120/6, 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:                    110149
    Total ARIN prefixes after maximum aggregation:                63323
    ARIN Deaggregation factor:                                     1.74
Prefixes being announced from the ARIN address blocks:            81274
    Unique aggregates announced from the ARIN address blocks:     32169
ARIN Region origin ASes present in the Internet Routing Table:    11869
    ARIN Prefixes per ASN:                                         6.85
ARIN Region origin ASes announcing only one prefix:                4566
ARIN Region transit ASes present in the Internet Routing Table:    1103
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          15
Number of ARIN addresses announced to Internet:               346850432
    Equivalent to 20 /8s, 172 /16s and 132 /24s
    Percentage of available ARIN address space announced:          76.6

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:                     49162
    Total RIPE prefixes after maximum aggregation:                31394
    RIPE Deaggregation factor:                                     1.57
Prefixes being announced from the RIPE address blocks:            45612
    Unique aggregates announced from the RIPE address blocks:     30028
RIPE Region origin ASes present in the Internet Routing Table:    10287
    RIPE Prefixes per ASN:                                         4.43
RIPE Region origin ASes announcing only one prefix:                5465
RIPE Region transit ASes present in the Internet Routing Table:    1637
Average RIPE Region AS path length visible:                         3.9
    Max RIPE Region AS path length visible:                          20
Number of RIPE addresses announced to Internet:               330056064
    Equivalent to 19 /8s, 172 /16s and 65 /24s
    Percentage of available RIPE address space announced:          75.7

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, 78/7, 80/4, 193/8, 194/7, 212/7
                       and 217/8

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

Prefixes being announced by LACNIC Region ASes:                   17077
    Total LACNIC prefixes after maximum aggregation:               4512
    LACNIC Deaggregation factor:                                   3.78
Prefixes being announced from the LACNIC address blocks:          15163
    Unique aggregates announced from the LACNIC address blocks:    8438
LACNIC Region origin ASes present in the Internet Routing Table:    873
    LACNIC Prefixes per ASN:                                      17.37
LACNIC Region origin ASes announcing only one prefix:               282
LACNIC Region transit ASes present in the Internet Routing Table:   153
Average LACNIC Region AS path length visible:                       4.0
    Max LACNIC Region AS path length visible:                        19
Number of LACNIC addresses announced to Internet:              43868928
    Equivalent to 2 /8s, 157 /16s and 99 /24s
    Percentage of available LACNIC address space announced:        43.6

LACNIC AS Blocks       26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks  186/7, 189/8, 190/8, 200/7

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

Prefixes being announced by AfriNIC Region ASes:                   2692
    Total AfriNIC prefixes after maximum aggregation:              1032
    AfriNIC Deaggregation factor:                                  2.61
Prefixes being announced from the AfriNIC address blocks:          2287
    Unique aggregates announced from the AfriNIC address blocks:   1370
AfriNIC Region origin ASes present in the Internet Routing Table:   208
    AfriNIC Prefixes per ASN:                                     11.00
AfriNIC Region origin ASes announcing only one prefix:               69
AfriNIC Region transit ASes present in the Internet Routing Table:   36
Average AfriNIC Region AS path length visible:                      3.8
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:              7530752
    Equivalent to 0 /8s, 114 /16s and 233 /24s
    Percentage of available AfriNIC address space announced:       22.4

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     1429        383          67   Videsh Sanchar Nigam Ltd. Aut
 9583     1121         81         418   Sify Limited
 4134     1097      11500         298   CHINANET-BACKBONE
 9498      997        533          67   BHARTI BT INTERNET LTD.
17488      824         53          65   Hathway IP Over Cable Interne
 4766      809       5441         321   Korea Telecom (KIX)
23577      795         34         688   Korea Telecom (ATM-MPLS)
 7545      734        159         120   TPG Internet Pty Ltd
18101      603        119          50   Reliance Infocom Ltd Internet
 4802      576        132         147   Wantree Development
 4812      548        974          94   China Telecom (Shanghai)
 1221      534       1950         415   Telstra Pty Ltd
 9829      530       1312           9   BSNL National Internet Backbo
 4668      517         68          10   LG-EDS Systems Inc.
17676      502      10903          63   Softbank BB Corp.
 4808      493        792         119   CNCGROUP IP network: China169
 9443      465        122          76   Primus Telecommunications
 7474      381        218         268   SingTel Optus Pty Ltd
17974      363        130          13   PT TELEKOMUNIKASI INDONESIA
 4837      358       5136         169   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1477       6162         991   AT&T WorldNet Services
 4323     1406       1007         365   Time Warner Telecom
 2386     1228        636         739   AT&T Data Communications Serv
11492     1154        113          13   Cable One 
 6478     1124        329         143   AT&T Worldnet Services 
 6197     1031        718         508   BellSouth Network Solutions, 
18566     1028        288           9   Covad Communications 
  174      968       6779         844   Cogent Communications
 7011      944        287         559   Citizens Utilities 
  701      875       6574         682   UUNET Technologies, Inc. 
20115      833        762         445   Charter Communications 
 1239      801       2720         561   Sprint 
22773      791       2133          54   Cox Communications, Inc.
19262      785       2829         186   Verizon Global Networks 
  209      739       3818         584   Qwest 
 3356      682      10820         372   Level 3 Communications, LLC 
 5668      656        176          23   CenturyTel Internet Holdings,
 6517      587        165          36   Yipes Communications, Inc. 
  852      581       1093         358   Telus Advanced Communications
15270      581        161          39   PaeTec.net -a division of Pae

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      475       1920         387   UUNET - Commercial IP service
24863      371         58          37   LINKdotNET AS number
 9116      343        168          27   Goldenlines main autonomous s
 3301      317       1457         294   TeliaNet Sweden
 3320      314       6035         261   Deutsche Telekom AG
 8551      295        283          41   Bezeq International
 6746      292        131         268   Dynamic Network Technologies,
  680      269       2045         257   DFN-IP service G-WiN
 8708      264        421         242   Romania Data Systems S.A.
 8866      263         62          22   Bulgarian Telecommunication C
 3215      262       2480         100   France Telecom Transpac
 8220      254        444         237   COLT Telecommunications
 3352      231       1898          40   Ibernet, Internet Access Netw
 3269      223       2839          73   TELECOM ITALIA
 9121      214       1442          25   TTnet Autonomous System
 3300      197        172          96   AUCS Communications Services 
 3292      195       1380         177   TDC Tele Danmark
 1257      194       1195         171   SWIPnet Swedish IP Network
12479      194        578           6   Uni2 Autonomous System
 3246      188        251         178   Song Networks

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151     1053       2208         214   UniNet S.A. de C.V. 
11830      514        299           9   Instituto Costarricense de El
16814      426         26           9   NSS, S.A. 
11172      378        114          60   Servicios Alestra S.A de C.V 
 7303      349        168          46   Telecom Argentina Stet-France
14522      345         29           8   SatNet S.A. 
 6471      342         75          35   ENTEL CHILE S.A. 
22047      317        246          13   VTR PUNTO NET S.A. 
14117      283         19          15   Telefonica del Sur S.A. 
10481      261        104           9   Prima S.A. 
10620      249         69          27   TVCABLE BOGOTA 
11556      237        128           4   Cable-Wireless Panama 
 6147      229        178          24   Telefonica Del Peru 
23216      207         16          44   RAMtelecom Telecomunicaciones
 6503      201        170          82   AVANTEL, S.A. 
 8163      178         11           7   METROTEL REDES S.A. 
19169      178         12          19   Telconet 
20299      178         25          29   NEWCOM AMERICAS 
21826      178         31          49   INTERCABLE 
28573      176        280          20   NET Servicos de Comunicao S.A

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      278        869         225   The Internet Solution 
 8452      215        188           7   TEDATA
 6713      144        135          11   Itissalat Al-MAGHRIB
 2018      140        299         115   Tertiary Education Network 
33783      125          8          12   EEPAD TISP TELECOM & INTERNET
 5536      124          8          10   Internet Egypt Network
33776      100          6           3   Starcomms Nigeria Limited
24835       88         48           6   RAYA Telecom - Egypt
15475       79         84           4   Nile Online
 2905       75        174          72   The Internetworking Company o
23889       73         24          15   MAURITIUS TELECOM
15706       55         12           4   Sudatel Internet Exchange Aut
33774       47         29          25   AS Number for Telecom Algeria
 5713       46        294          36   Telkom SA Ltd 
16637       42         21          29   Johnnic e-Ventures 
12455       36          6           3   Jambonet Autonomous system
 8524       32          2          10   AUCEGYPT Autonomous System
10798       27         16           1   Standard Bank of South Africa
29975       26         10           9   Vodacom
21280       25          4           4   Swift Global Kenya Ltd.Is an 

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

  ASN   No of nets  Net Savings Description
 4755      1429        1362      Videsh Sanchar Nigam Ltd. Aut
11492      1154        1141      Cable One 
 4323      1406        1041      Time Warner Telecom
18566      1028        1019      Covad Communications 
 6478      1124         981      AT&T Worldnet Services 
 9498       997         930      BHARTI BT INTERNET LTD.
 8151      1053         839      UniNet S.A. de C.V. 
 4134      1097         799      CHINANET-BACKBONE
17488       824         759      Hathway IP Over Cable Interne
22773       791         737      Cox Communications, Inc.
 9583      1121         703      Sify Limited
 5668       656         633      CenturyTel Internet Holdings,
 7545       734         614      TPG Internet Pty Ltd
19262       785         599      Verizon Global Networks 
18101       603         553      Reliance Infocom Ltd Internet
 6517       587         551      Yipes Communications, Inc. 
15270       581         542      PaeTec.net -a division of Pae
 6197      1031         523      BellSouth Network Solutions, 
 9829       530         521      BSNL National Internet Backbo
19916       568         517      OLM LLC 

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

Bad AS  Designation  Network              Transit AS  Description
64250   RESERVED      59.144.44.0/24        9498       BHARTI BT INTERNET L
65010   PRIVATE       83.174.240.0/20      28812       BashInformSvyaz Auto
64250   RESERVED      122.167.64.0/19       9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.96.0/20       9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.112.0/21      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.176.0/21      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.188.0/22      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.192.0/22      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.196.0/22      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.200.0/22      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.204.0/22      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.208.0/22      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.212.0/22      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.216.0/22      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.220.0/22      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.240.0/23      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.242.0/23      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.244.0/23      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.246.0/23      9498       BHARTI BT INTERNET L
64250   RESERVED      122.171.0.0/24        9498       BHARTI BT INTERNET L
64250   RESERVED      122.171.1.0/24        9498       BHARTI BT INTERNET L
64631   PRIVATE       199.242.73.0/24      22472       Florida Supreme Cour
64631   PRIVATE       199.242.74.0/24      22472       Florida Supreme Cour
64631   PRIVATE       199.242.96.0/24      22472       Florida Supreme Cour
64631   PRIVATE       199.242.109.0/24      8103       Florida Department o
64631   PRIVATE       199.242.111.0/24     22472       Florida Supreme Cour
65000   PRIVATE       216.136.11.0/24      27182       Peregrine Capital Ma

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

Network            Origin AS  Description
101.13.13.0/24        8764     LIETUVOS-TELEKOMAS Autonomous
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
172.11.12.0/24        1803     SPRINT 
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 
192.153.136.0/21       721     DLA Systems Automation Center
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       /9:9       /10:16      /11:37      /12:136     
/13:265     /14:476     /15:936     /16:9644    /17:4097    /18:6679    
/19:14243   /20:16507   /21:15249   /22:19670   /23:20445   /24:123017  
/25:772     /26:1039    /27:544     /28:92      /29:5       /30:0       
/31:0       /32:8       

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

  ASN   No of nets  Total ann.   Description
11492     1146          1154      Cable One 
 6478     1123          1124      AT&T Worldnet Services 
18566     1010          1028      Covad Communications 
 9583      963          1121      Sify Limited
 2386      916          1228      AT&T Data Communications Serv
 7011      832           944      Citizens Utilities 
 7018      813          1477      AT&T WorldNet Services
 4755      800          1429      Videsh Sanchar Nigam Ltd. Aut
23577      786           795      Korea Telecom (ATM-MPLS)
 6197      775          1031      BellSouth Network Solutions, 
 9498      684           997      BHARTI BT INTERNET LTD.
17488      643           824      Hathway IP Over Cable Interne
 4766      607           809      Korea Telecom (KIX)
 4323      600          1406      Time Warner Telecom
19916      563           568      OLM LLC 
15270      544           581      PaeTec.net -a division of Pae
 6517      542           587      Yipes Communications, Inc. 
 5668      518           656      CenturyTel Internet Holdings,
 4668      507           517      LG-EDS Systems Inc.
18101      503           603      Reliance Infocom Ltd Internet

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

   4:8         8:90       12:1786     13:1        15:20       16:3      
  17:3        18:13       20:36       24:977      25:1        32:60     
  33:3        38:350      40:61       41:325      44:2        47:4      
  52:4        55:3        56:3        57:23       58:476      59:409    
  60:376      61:994      62:976      63:1988     64:3249     65:2365   
  66:3541     67:825      68:677      69:1979     70:457      71:107    
  72:1408     73:5        74:694      75:260      76:138      77:394    
  78:211      80:838      81:800      82:572      83:364      84:620    
  85:857      86:346      87:579      88:287      89:1005     90:37     
  91:589      97:6        98:3       101:1       116:376     117:191    
 118:22      121:311     122:614     123:190     124:685     125:1010   
 128:272     129:201     130:138     131:365     132:54      133:9      
 134:195     135:34      136:188     137:83      138:156     139:74     
 140:514     141:174     142:370     143:256     144:310     145:46     
 146:335     147:125     148:424     149:185     150:111     151:156    
 152:89      153:121     154:11      155:258     156:161     157:221    
 158:160     159:197     160:136     161:98      162:173     163:182    
 164:487     165:395     166:289     167:303     168:497     169:124    
 170:398     171:22      172:3       189:73      190:1110    192:5720   
 193:3963    194:3205    195:2470    196:959     198:3824    199:3232   
 200:5230    201:1228    202:7374    203:7888    204:3951    205:2027   
 206:2424    207:2806    208:2877    209:3482    210:2450    211:1087   
 212:1309    213:1491    214:418     215:45      216:4074    217:1208   
 218:320     219:382     220:1005    221:414     222:263    

End of report



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