[AusNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Sat Apr 24 04:10:24 EST 2010


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 24 Apr, 2010

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

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

BGP routing table entries examined:                              319297
    Prefixes after maximum aggregation:                          147421
    Deaggregation factor:                                          2.17
    Unique aggregates announced to Internet:                     154986
Total ASes present in the Internet Routing Table:                 33849
    Prefixes per ASN:                                              9.43
Origin-only ASes present in the Internet Routing Table:           29368
Origin ASes announcing only one prefix:                           14321
Transit ASes present in the Internet Routing Table:                4481
Transit-only ASes present in the Internet Routing Table:            107
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      24
    Max AS path prepend of ASN (32374)                               19
Prefixes from unregistered ASNs in the Routing Table:               551
    Unregistered ASNs in the Routing Table:                         130
Number of 32-bit ASNs allocated by the RIRs:                        530
Prefixes from 32-bit ASNs in the Routing Table:                     593
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            207
Number of addresses announced to Internet:                   2232801984
    Equivalent to 133 /8s, 21 /16s and 218 /24s
    Percentage of available address space announced:               60.2
    Percentage of allocated address space announced:               66.2
    Percentage of available address space allocated:               90.9
    Percentage of address space in use by end-sites:               82.4
Total number of prefixes smaller than registry allocations:      153040

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

Prefixes being announced by APNIC Region ASes:                    76246
    Total APNIC prefixes after maximum aggregation:               26542
    APNIC Deaggregation factor:                                    2.87
Prefixes being announced from the APNIC address blocks:           73091
    Unique aggregates announced from the APNIC address blocks:    32073
APNIC Region origin ASes present in the Internet Routing Table:    4002
    APNIC Prefixes per ASN:                                       18.26
APNIC Region origin ASes announcing only one prefix:               1098
APNIC Region transit ASes present in the Internet Routing Table:    629
Average APNIC Region AS path length visible:                        3.6
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              510246208
    Equivalent to 30 /8s, 105 /16s and 189 /24s
    Percentage of available APNIC address space announced:         76.0

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079
                       55296-56319, 131072-132095
APNIC Address Blocks     1/8,  14/8,  27/8,  43/8,  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, 133/8, 175/8, 180/8,
                       182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
                       219/8, 220/8, 221/8, 222/8, 223/8,

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

Prefixes being announced by ARIN Region ASes:                    133660
    Total ARIN prefixes after maximum aggregation:                68828
    ARIN Deaggregation factor:                                     1.94
Prefixes being announced from the ARIN address blocks:           106521
    Unique aggregates announced from the ARIN address blocks:     40566
ARIN Region origin ASes present in the Internet Routing Table:    13641
    ARIN Prefixes per ASN:                                         7.81
ARIN Region origin ASes announcing only one prefix:                5259
ARIN Region transit ASes present in the Internet Routing Table:    1352
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          22
Number of ARIN addresses announced to Internet:               725747232
    Equivalent to 43 /8s, 66 /16s and 6 /24s
    Percentage of available ARIN address space announced:          61.8

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
                       53248-55295, 393216-394239
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  24/8,  26/8,  28/8,  29/8,
                        30/8,  32/8,  33/8,  34/8,  35/8,  38/8,  40/8,
                        44/8,  45/8,  47/8,  48/8,  50/8,  52/8,  54/8,
                        55/8,  56/8,  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, 107/8,
                       108/8, 173/8, 174/8, 184/8, 199/8, 204/8, 205/8,
                       206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
                      

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

Prefixes being announced by RIPE Region ASes:                     73238
    Total RIPE prefixes after maximum aggregation:                42689
    RIPE Deaggregation factor:                                     1.72
Prefixes being announced from the RIPE address blocks:            66217
    Unique aggregates announced from the RIPE address blocks:     43594
RIPE Region origin ASes present in the Internet Routing Table:    14395
    RIPE Prefixes per ASN:                                         4.60
RIPE Region origin ASes announcing only one prefix:                7445
RIPE Region transit ASes present in the Internet Routing Table:    2152
Average RIPE Region AS path length visible:                         3.9
    Max RIPE Region AS path length visible:                          21
Number of RIPE addresses announced to Internet:               422167200
    Equivalent to 25 /8s, 41 /16s and 194 /24s
    Percentage of available RIPE address space announced:          78.6

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, 47104-52223, 196608-197631
RIPE Address Blocks      2/8,  25/8,  46/8,  51/8,  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, 109/8, 178/8, 193/8, 194/8,
                       195/8, 212/8, 213/8, 217/8,

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

Prefixes being announced by LACNIC Region ASes:                   28362
    Total LACNIC prefixes after maximum aggregation:               6743
    LACNIC Deaggregation factor:                                   4.21
Prefixes being announced from the LACNIC address blocks:          26765
    Unique aggregates announced from the LACNIC address blocks:   13820
LACNIC Region origin ASes present in the Internet Routing Table:   1270
    LACNIC Prefixes per ASN:                                      21.07
LACNIC Region origin ASes announcing only one prefix:               413
LACNIC Region transit ASes present in the Internet Routing Table:   226
Average LACNIC Region AS path length visible:                       4.0
    Max LACNIC Region AS path length visible:                        24
Number of LACNIC addresses announced to Internet:              72457408
    Equivalent to 4 /8s, 81 /16s and 156 /24s
    Percentage of available LACNIC address space announced:        72.0

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       262144-263167 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:                   6764
    Total AfriNIC prefixes after maximum aggregation:              1783
    AfriNIC Deaggregation factor:                                  3.79
Prefixes being announced from the AfriNIC address blocks:          5154
    Unique aggregates announced from the AfriNIC address blocks:   1460
AfriNIC Region origin ASes present in the Internet Routing Table:   357
    AfriNIC Prefixes per ASN:                                     14.44
AfriNIC Region origin ASes announcing only one prefix:              106
AfriNIC Region transit ASes present in the Internet Routing Table:   82
Average AfriNIC Region AS path length visible:                      3.9
    Max AfriNIC Region AS path length visible:                       18
Number of AfriNIC addresses announced to Internet:             14435328
    Equivalent to 0 /8s, 220 /16s and 68 /24s
    Percentage of available AfriNIC address space announced:       43.0

AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8, 197/8,

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4766     1845       8406         479   Korea Telecom (KIX)
17488     1308        136         125   Hathway IP Over Cable Interne
 4755     1295        291         148   TATA Communications formerly 
 7545     1145        205         109   TPG Internet Pty Ltd
17974     1010        281          18   PT TELEKOMUNIKASI INDONESIA
 9583      985         72         485   Sify Limited
 4134      938      20414         395   CHINANET-BACKBONE
24560      883        303         169   Bharti Airtel Ltd., Telemedia
 4808      843       1587         215   CNCGROUP IP network: China169
 9829      811        679          41   BSNL National Internet Backbo

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     4001       3837         296   bellsouth.net, inc. 
 4323     3830       1116         403   Time Warner Telecom
 1785     1782        699         132   PaeTec Communications, Inc.
 7018     1557       5741         989   AT&T WorldNet Services
20115     1512       1500         658   Charter Communications 
 2386     1309        585         927   AT&T Data Communications Serv
 3356     1217      10924         423   Level 3 Communications, LLC 
 6478     1209        249         149   AT&T Worldnet Services 
11492     1145        222          14   Cable One 
22773     1143       2605          71   Cox Communications, Inc.

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
35805      616         56           6   United Telecom of Georgia
 3292      449       1899         390   TDC Tele Danmark
30890      433         99         201   Evolva Telecom
  702      416       1869         331   UUNET - Commercial IP service
 8551      401        356          37   Bezeq International
 8866      395        117          18   Bulgarian Telecommunication C
 3301      365       1413         320   TeliaNet Sweden
 3320      363       7072         316   Deutsche Telekom AG
 3215      348       3238         104   France Telecom Transpac
12479      332        576           5   Uni2 Autonomous System

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     1544       2965         242   UniNet S.A. de C.V. 
10620     1035        239         157   TVCABLE BOGOTA 
28573      923        735          89   NET Servicos de Comunicao S.A
 7303      705        363         103   Telecom Argentina Stet-France
22047      549        310          15   VTR PUNTO NET S.A. 
 6503      541        171         211   AVANTEL, S.A. 
18881      532        268          11   Global Village Telecom 
 7738      477        922          30   Telecomunicacoes da Bahia S.A
 3816      459        195          70   Empresa Nacional de Telecomun
14117      455         30          13   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
 8452     1054        189           9   TEDATA
24863      712        145          41   LINKdotNET AS number
36992      575        240         160   Etisalat MISR
 3741      272        850         232   The Internet Solution 
33776      219         12          14   Starcomms Nigeria Limited
 2018      216        230         110   Tertiary Education Network 
 6713      176        167          12   Itissalat Al-MAGHRIB
29571      172         19           9   Ci Telecom Autonomous system 
29975      133        506          14   Vodacom
 5536      113          8           3   Internet Egypt Network

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     4001       3837         296   bellsouth.net, inc. 
 4323     3830       1116         403   Time Warner Telecom
 4766     1845       8406         479   Korea Telecom (KIX)
 1785     1782        699         132   PaeTec Communications, Inc.
 7018     1557       5741         989   AT&T WorldNet Services
 8151     1544       2965         242   UniNet S.A. de C.V. 
20115     1512       1500         658   Charter Communications 
 2386     1309        585         927   AT&T Data Communications Serv
17488     1308        136         125   Hathway IP Over Cable Interne
 4755     1295        291         148   TATA Communications formerly 

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

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

  ASN   No of nets  Net Savings Description
 4323      3830        3427      Time Warner Telecom
 1785      1782        1650      PaeTec Communications, Inc.
 4766      1845        1366      Korea Telecom (KIX)
 8151      1544        1302      UniNet S.A. de C.V. 
17488      1308        1183      Hathway IP Over Cable Interne
 4755      1295        1147      TATA Communications formerly 
11492      1145        1131      Cable One 
22773      1143        1072      Cox Communications, Inc.
 6478      1209        1060      AT&T Worldnet Services 
18566      1059        1049      Covad Communications 

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        1239       Sprint 
26973   UNALLOCATED  12.39.154.0/23        1239       Sprint 
26973   UNALLOCATED  12.39.155.0/24        1239       Sprint 
26973   UNALLOCATED  12.39.159.0/24        1239       Sprint 
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
14.0.0.0/8           38639     NTT Communications Corporatio
41.190.64.0/22       28683     Office des Postes et telecomm
41.190.66.0/24       37039     >>UNKNOWN<<
41.202.96.0/19       29571     Ci Telecom Autonomous system 
41.220.144.0/20      36918     ORASCOM TELECOM ALGERIE VSAT
41.220.159.0/24      36918     ORASCOM TELECOM ALGERIE VSAT
41.222.79.0/24       36938     >>UNKNOWN<<
41.223.92.0/22       36936     >>UNKNOWN<<
41.223.188.0/24      22351     Intelsat 
41.223.189.0/24      26452     Local Communications Networks

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        /8:21       /9:10      /10:25      /11:66      /12:192     
/13:396     /14:684     /15:1247    /16:11068   /17:5231    /18:8929    
/19:18342   /20:22449   /21:22552   /22:29289   /23:28964   /24:166838  
/25:977     /26:1225    /27:627     /28:141     /29:9       /30:7       
/31:0       /32:8       

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

  ASN   No of nets  Total ann.   Description
 6389     2566          4001      bellsouth.net, inc. 
 4323     2340          3830      Time Warner Telecom
 4766     1480          1845      Korea Telecom (KIX)
 1785     1242          1782      PaeTec Communications, Inc.
17488     1060          1308      Hathway IP Over Cable Interne
11492     1056          1145      Cable One 
18566     1040          1059      Covad Communications 
 8452      954          1054      TEDATA
10620      945          1035      TVCABLE BOGOTA 
 7018      936          1557      AT&T WorldNet Services

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

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

   4:13        8:257      12:2001     13:10       15:23       16:3      
  17:8        20:25       24:1409     27:51       32:48       33:12     
  38:660      40:99       41:2141     44:3        46:1        47:25     
  52:6        55:7        56:2        57:24       58:711      59:535    
  60:427      61:1097     62:1011     63:1993     64:3852     65:2361   
  66:4137     67:1797     68:1057     69:2826     70:707      71:236    
  72:1814     73:2        74:2243     75:246      76:308      77:844    
  78:604      79:387      80:984      81:782      82:464      83:444    
  84:693      85:1038     86:441      87:692      88:327      89:1557   
  90:85       91:2719     92:460      93:1102     94:1385     95:577    
  96:229      97:306      98:545      99:26      109:450     110:313    
 111:473     112:247     113:273     114:390     115:599     116:1021   
 117:629     118:424     119:923     120:149     121:787     122:1427   
 123:872     124:1107    125:1293    128:209     129:204     130:163    
 131:558     132:245     133:17      134:195     135:44      136:227    
 137:171     138:255     139:92      140:487     141:136     142:374    
 143:389     144:465     145:53      146:416     147:169     148:586    
 149:289     150:150     151:180     152:277     153:168     154:2      
 155:328     156:184     157:328     158:107     159:368     160:315    
 161:179     162:268     163:168     164:405     165:528     166:507    
 167:405     168:801     169:160     170:729     171:50      172:1      
 173:662     174:653     175:75      178:66      180:419     182:36     
 183:247     184:35      186:365     187:300     188:1249    189:746    
 190:3628    192:5732    193:4673    194:3367    195:2777    196:1139   
 197:1       198:3563    199:3419    200:5326    201:1516    202:7922   
 203:8319    204:4053    205:2324    206:2542    207:3044    208:3955   
 209:3474    210:2513    211:1239    212:1717    213:1663    214:596    
 215:70      216:4574    217:1531    218:500     219:395     220:1109   
 221:383     222:313    

End of report



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