[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Oct 9 18:27:22 UTC 2009


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 10 Oct, 2009

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

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

BGP routing table entries examined:                              299909
    Prefixes after maximum aggregation:                          140664
    Deaggregation factor:                                          2.13
    Unique aggregates announced to Internet:                     148721
Total ASes present in the Internet Routing Table:                 32379
    Prefixes per ASN:                                              9.26
Origin-only ASes present in the Internet Routing Table:           28138
Origin ASes announcing only one prefix:                           13738
Transit ASes present in the Internet Routing Table:                4241
Transit-only ASes present in the Internet Routing Table:            102
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      24
    Max AS path prepend of ASN (12026)                               22
Prefixes from unregistered ASNs in the Routing Table:               560
    Unregistered ASNs in the Routing Table:                         127
Number of 32-bit ASNs allocated by the RIRs:                        292
Prefixes from 32-bit ASNs in the Routing Table:                     213
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            190
Number of addresses announced to Internet:                   2112370016
    Equivalent to 125 /8s, 232 /16s and 53 /24s
    Percentage of available address space announced:               57.0
    Percentage of allocated address space announced:               64.6
    Percentage of available address space allocated:               88.2
    Percentage of address space in use by end-sites:               79.3
Total number of prefixes smaller than registry allocations:      144194

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

Prefixes being announced by APNIC Region ASes:                    71884
    Total APNIC prefixes after maximum aggregation:               25318
    APNIC Deaggregation factor:                                    2.84
Prefixes being announced from the APNIC address blocks:           68393
    Unique aggregates announced from the APNIC address blocks:    30300
APNIC Region origin ASes present in the Internet Routing Table:    3816
    APNIC Prefixes per ASN:                                       17.92
APNIC Region origin ASes announcing only one prefix:               1047
APNIC Region transit ASes present in the Internet Routing Table:    587
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         14
Number of APNIC addresses announced to Internet:              461684000
    Equivalent to 27 /8s, 132 /16s and 189 /24s
    Percentage of available APNIC address space announced:         78.6

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    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, 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,
                      

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

Prefixes being announced by ARIN Region ASes:                    126884
    Total ARIN prefixes after maximum aggregation:                66823
    ARIN Deaggregation factor:                                     1.90
Prefixes being announced from the ARIN address blocks:           101398
    Unique aggregates announced from the ARIN address blocks:     38471
ARIN Region origin ASes present in the Internet Routing Table:    13278
    ARIN Prefixes per ASN:                                         7.64
ARIN Region origin ASes announcing only one prefix:                5135
ARIN Region transit ASes present in the Internet Routing Table:    1301
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          24
Number of ARIN addresses announced to Internet:               706797568
    Equivalent to 42 /8s, 32 /16s and 224 /24s
    Percentage of available ARIN address space announced:          62.0

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,  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, 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:                     68963
    Total RIPE prefixes after maximum aggregation:                40347
    RIPE Deaggregation factor:                                     1.71
Prefixes being announced from the RIPE address blocks:            62540
    Unique aggregates announced from the RIPE address blocks:     41940
RIPE Region origin ASes present in the Internet Routing Table:    13579
    RIPE Prefixes per ASN:                                         4.61
RIPE Region origin ASes announcing only one prefix:                7080
RIPE Region transit ASes present in the Internet Routing Table:    2043
Average RIPE Region AS path length visible:                         3.9
    Max RIPE Region AS path length visible:                          21
Number of RIPE addresses announced to Internet:               401178048
    Equivalent to 23 /8s, 233 /16s and 125 /24s
    Percentage of available RIPE address space announced:          74.7

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, 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:                   25802
    Total LACNIC prefixes after maximum aggregation:               6344
    LACNIC Deaggregation factor:                                   4.07
Prefixes being announced from the LACNIC address blocks:          24098
    Unique aggregates announced from the LACNIC address blocks:   13510
LACNIC Region origin ASes present in the Internet Routing Table:   1190
    LACNIC Prefixes per ASN:                                      20.25
LACNIC Region origin ASes announcing only one prefix:               380
LACNIC Region transit ASes present in the Internet Routing Table:   192
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        21
Number of LACNIC addresses announced to Internet:              67013376
    Equivalent to 3 /8s, 254 /16s and 139 /24s
    Percentage of available LACNIC address space announced:        66.6

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:                   5925
    Total AfriNIC prefixes after maximum aggregation:              1561
    AfriNIC Deaggregation factor:                                  3.80
Prefixes being announced from the AfriNIC address blocks:          4303
    Unique aggregates announced from the AfriNIC address blocks:   1546
AfriNIC Region origin ASes present in the Internet Routing Table:   325
    AfriNIC Prefixes per ASN:                                     13.24
AfriNIC Region origin ASes announcing only one prefix:               96
AfriNIC Region transit ASes present in the Internet Routing Table:   67
Average AfriNIC Region AS path length visible:                      3.8
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:             12557568
    Equivalent to 0 /8s, 191 /16s and 157 /24s
    Percentage of available AfriNIC address space announced:       37.4

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     1766       6996         458   Korea Telecom (KIX)
17488     1460        137         144   Hathway IP Over Cable Interne
 4755     1261        292         145   TATA Communications formerly 
 9583     1101         87         530   Sify Limited
 4134     1010      18168         391   CHINANET-BACKBONE
18101      979        204          33   Reliance Infocom Ltd Internet
 7545      893        199         102   TPG Internet Pty Ltd
 9829      816        629          21   BSNL National Internet Backbo
17974      790        248          93   PT TELEKOMUNIKASI INDONESIA
24560      775        285         164   Bharti Airtel Ltd., Telemedia

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     4161       3626         313   bellsouth.net, inc. 
 4323     3697       1037         385   Time Warner Telecom
 1785     1762        714         138   PaeTec Communications, Inc.
 7018     1543       5860        1057   AT&T WorldNet Services
20115     1484       1480         673   Charter Communications 
 6478     1405        280         340   AT&T Worldnet Services 
 2386     1308        641         947   AT&T Data Communications Serv
 3356     1221      10963         433   Level 3 Communications, LLC 
11492     1133        208          12   Cable One 
22773     1111       2604          67   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
30890      509         94         207   Evolva Telecom
 3292      450       1908         394   TDC Tele Danmark
35805      445         40           5   United Telecom of Georgia
12479      427        578           6   Uni2 Autonomous System
  702      422       1822         340   UUNET - Commercial IP service
 9198      390        138          12   Kazakhtelecom Data Network Ad
 8866      356        110          21   Bulgarian Telecommunication C
 3320      352       7067         303   Deutsche Telekom AG
 3301      351       1412         308   TeliaNet Sweden
 3215      349       3144         111   France Telecom Transpac

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     1482       2899         243   UniNet S.A. de C.V. 
10620     1020        227          95   TVCABLE BOGOTA 
28573      762        651          87   NET Servicos de Comunicao S.A
 7303      656        346          97   Telecom Argentina Stet-France
22047      545        302          14   VTR PUNTO NET S.A. 
11830      475        310          61   Instituto Costarricense de El
11172      440         99          70   Servicios Alestra S.A de C.V 
14117      436         29          11   Telefonica del Sur S.A. 
 7738      428        858          29   Telecomunicacoes da Bahia S.A
 6471      421         96          31   ENTEL CHILE 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      984        188           7   TEDATA
24863      926         95          68   LINKdotNET AS number
 3741      278        857         239   The Internet Solution 
 2018      192        187         118   Tertiary Education Network 
 6713      176        167          12   Itissalat Al-MAGHRIB
29571      140         14           6   Ci Telecom Autonomous system 
33776      125          7          11   Starcomms Nigeria Limited
24835      123         46           9   RAYA Telecom - Egypt
 5536      122          8          13   Internet Egypt Network
 5713      116        508          67   Telkom SA Ltd 

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     4161       3626         313   bellsouth.net, inc. 
 4323     3697       1037         385   Time Warner Telecom
 4766     1766       6996         458   Korea Telecom (KIX)
 1785     1762        714         138   PaeTec Communications, Inc.
 7018     1543       5860        1057   AT&T WorldNet Services
20115     1484       1480         673   Charter Communications 
 8151     1482       2899         243   UniNet S.A. de C.V. 
17488     1460        137         144   Hathway IP Over Cable Interne
 6478     1405        280         340   AT&T Worldnet Services 
 2386     1308        641         947   AT&T Data Communications Serv

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

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

  ASN   No of nets  Net Savings Description
 4323      3697        3312      Time Warner Telecom
 1785      1762        1624      PaeTec Communications, Inc.
17488      1460        1316      Hathway IP Over Cable Interne
 4766      1766        1308      Korea Telecom (KIX)
 8151      1482        1239      UniNet S.A. de C.V. 
11492      1133        1121      Cable One 
 4755      1261        1116      TATA Communications formerly 
 6478      1405        1065      AT&T Worldnet Services 
18566      1062        1052      Covad Communications 
22773      1111        1044      Cox Communications, Inc.

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        7018       AT&T WorldNet Servic
26973   UNALLOCATED   12.39.154.0/23        7018       AT&T WorldNet Servic
26973   UNALLOCATED   12.39.159.0/24        7018       AT&T WorldNet Servic
32326   UNALLOCATED   12.40.49.0/24         7018       AT&T WorldNet Servic
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
2.0.0.0/16           12654     RIPE NCC RIS Project
2.1.0.0/21           12654     RIPE NCC RIS Project
2.1.24.0/24          12654     RIPE NCC RIS Project
41.223.92.0/22       36936     >>UNKNOWN<<
41.223.189.0/24      26452     Local Communications Networks
43.245.0.0/16         7502     Internetwork Kyoto
46.0.0.0/16          12654     RIPE NCC RIS Project
46.1.0.0/21          12654     RIPE NCC RIS Project
46.1.24.0/24         12654     RIPE NCC RIS Project
62.61.220.0/24       24974     Tachyon Europe BV - Wireless 

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        /8:20       /9:10      /10:24      /11:63      /12:176     
/13:354     /14:628     /15:1202    /16:10682   /17:4892    /18:8410    
/19:17500   /20:21007   /21:21008   /22:27238   /23:26831   /24:157108  
/25:932     /26:1091    /27:554     /28:154     /29:8       /30:9       
/31:0       /32:8       

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

  ASN   No of nets  Total ann.   Description
 6389     2694          4161      bellsouth.net, inc. 
 4323     2353          3697      Time Warner Telecom
 4766     1438          1766      Korea Telecom (KIX)
 1785     1228          1762      PaeTec Communications, Inc.
17488     1220          1460      Hathway IP Over Cable Interne
11492     1058          1133      Cable One 
18566     1043          1062      Covad Communications 
 9583      953          1101      Sify Limited
10620      926          1020      TVCABLE BOGOTA 
 8452      912           984      TEDATA

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

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

   2:1         4:14        8:226      12:2147     13:7        15:22     
  16:3        17:5        20:36       24:1168     32:52       34:2      
  38:601      40:97       41:1735     43:1        44:2        45:1      
  46:1        47:21       52:6        55:2        56:2        57:25     
  58:606      59:642      60:443      61:1078     62:1011     63:2012   
  64:3638     65:2382     66:4094     67:1795     68:985      69:2777   
  70:573      71:154      72:1668     73:2        74:1934     75:182    
  76:350      77:871      78:583      79:390      80:910      81:814    
  82:504      83:431      84:527      85:1003     86:381      87:688    
  88:386      89:1498     90:62       91:2590     92:412      93:1217   
  94:1258     95:1132     96:171      97:271      98:326      99:30     
 109:51      110:222     111:451     112:143     113:152     114:265    
 115:428     116:1097    117:552     118:350     119:778     120:135    
 121:784     122:1287    123:788     124:1044    125:1360    128:220    
 129:211     130:131     131:415     132:77      133:10      134:182    
 135:42      136:224     137:168     138:173     139:84      140:440    
 141:123     142:381     143:336     144:364     145:48      146:393    
 147:168     148:550     149:204     150:151     151:176     152:215    
 153:156     154:2       155:271     156:166     157:309     158:100    
 159:356     160:292     161:168     162:279     163:170     164:279    
 165:517     166:472     167:390     168:799     169:168     170:469    
 171:43      172:2       173:414     174:364     175:1       178:1      
 180:57      182:1       186:143     187:154     188:1134    189:603    
 190:3101    192:5756    193:4267    194:3295    195:2753    196:1159   
 198:3550    199:3346    200:5205    201:1351    202:7868    203:8227   
 204:3926    205:2190    206:2416    207:2976    208:3958    209:3491   
 210:2561    211:1127    212:1592    213:1620    214:189     215:40     
 216:4429    217:1336    218:411     219:457     220:1135    221:449    
 222:316    

End of report



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