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Weekly Routing Table Report
From: Routing Analysis Role Account <cscora () apnic net>
Date: Sat, 20 Apr 2013 04:33:20 +1000 (EST)

This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.

The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG,
TRNOG, CaribNOG and the RIPE Routing Working Group.

Daily listings are sent to bgp-stats () lists apnic net

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

If you have any comments please contact Philip Smith <pfsinoz () gmail com>.

Routing Table Report   04:00 +10GMT Sat 20 Apr, 2013

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

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

BGP routing table entries examined:                              450189
    Prefixes after maximum aggregation:                          184599
    Deaggregation factor:                                          2.44
    Unique aggregates announced to Internet:                     222556
Total ASes present in the Internet Routing Table:                 43876
    Prefixes per ASN:                                             10.26
Origin-only ASes present in the Internet Routing Table:           34506
Origin ASes announcing only one prefix:                           16073
Transit ASes present in the Internet Routing Table:                5787
Transit-only ASes present in the Internet Routing Table:            142
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      29
    Max AS path prepend of ASN ( 19037)                              22
Prefixes from unregistered ASNs in the Routing Table:               358
    Unregistered ASNs in the Routing Table:                         132
Number of 32-bit ASNs allocated by the RIRs:                       4729
Number of 32-bit ASNs visible in the Routing Table:                3583
Prefixes from 32-bit ASNs in the Routing Table:                   10155
Special use prefixes present in the Routing Table:                   22
Prefixes being announced from unallocated address space:            220
Number of addresses announced to Internet:                   2613629004
    Equivalent to 155 /8s, 200 /16s and 208 /24s
    Percentage of available address space announced:               70.6
    Percentage of allocated address space announced:               70.6
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               94.4
Total number of prefixes smaller than registry allocations:      158679

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

Prefixes being announced by APNIC Region ASes:                   108086
    Total APNIC prefixes after maximum aggregation:               33445
    APNIC Deaggregation factor:                                    3.23
Prefixes being announced from the APNIC address blocks:          109312
    Unique aggregates announced from the APNIC address blocks:    44563
APNIC Region origin ASes present in the Internet Routing Table:    4821
    APNIC Prefixes per ASN:                                       22.67
APNIC Region origin ASes announcing only one prefix:               1215
APNIC Region transit ASes present in the Internet Routing Table:    818
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         22
Number of APNIC region 32-bit ASNs visible in the Routing Table:    500
Number of APNIC addresses announced to Internet:              720782272
    Equivalent to 42 /8s, 246 /16s and 67 /24s
    Percentage of available APNIC address space announced:         84.2

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 131072-133119
APNIC Address Blocks     1/8,  14/8,  27/8,  36/8,  39/8,  42/8,  43/8,
                        49/8,  58/8,  59/8,  60/8,  61/8, 101/8, 103/8,
                       106/8, 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, 150/8, 153/8,
                       163/8, 171/8, 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:                    158276
    Total ARIN prefixes after maximum aggregation:                79767
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           158919
    Unique aggregates announced from the ARIN address blocks:     72644
ARIN Region origin ASes present in the Internet Routing Table:    15649
    ARIN Prefixes per ASN:                                        10.16
ARIN Region origin ASes announcing only one prefix:                5959
ARIN Region transit ASes present in the Internet Routing Table:    1615
Average ARIN Region AS path length visible:                         4.1
    Max ARIN Region AS path length visible:                          27
Number of ARIN region 32-bit ASNs visible in the Routing Table:      18
Number of ARIN addresses announced to Internet:              1062822272
    Equivalent to 63 /8s, 89 /16s and 97 /24s
    Percentage of available ARIN address space announced:          56.2

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,  23/8,  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,
                        53/8,  54/8,  55/8,  56/8,  57/8,  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, 100/8, 104/8, 107/8, 108/8, 128/8,
                       129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
                       137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
                       146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
                       157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
                       165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
                       173/8, 174/8, 184/8, 192/8, 198/8, 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:                    116470
    Total RIPE prefixes after maximum aggregation:                59453
    RIPE Deaggregation factor:                                     1.96
Prefixes being announced from the RIPE address blocks:           120053
    Unique aggregates announced from the RIPE address blocks:     77159
RIPE Region origin ASes present in the Internet Routing Table:    17133
    RIPE Prefixes per ASN:                                         7.01
RIPE Region origin ASes announcing only one prefix:                8152
RIPE Region transit ASes present in the Internet Routing Table:    2788
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2302
Number of RIPE addresses announced to Internet:               656501988
    Equivalent to 39 /8s, 33 /16s and 108 /24s
    Percentage of available RIPE address space announced:          95.4

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
                       40960-45055, 47104-52223, 56320-58367
                       59392-61439, 196608-199679
RIPE Address Blocks      2/8,   5/8,  25/8,  31/8,  37/8,  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,
                       141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
                       193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

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

Prefixes being announced by LACNIC Region ASes:                   46912
    Total LACNIC prefixes after maximum aggregation:               9395
    LACNIC Deaggregation factor:                                   4.99
Prefixes being announced from the LACNIC address blocks:          50936
    Unique aggregates announced from the LACNIC address blocks:   24154
LACNIC Region origin ASes present in the Internet Routing Table:   1903
    LACNIC Prefixes per ASN:                                      26.77
LACNIC Region origin ASes announcing only one prefix:               561
LACNIC Region transit ASes present in the Internet Routing Table:   355
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        29
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   756
Number of LACNIC addresses announced to Internet:             126871336
    Equivalent to 7 /8s, 143 /16s and 231 /24s
    Percentage of available LACNIC address space announced:        75.6

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-62463, 262144-263167 plus ERX transfers
LACNIC Address Blocks  177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
                       191/8, 200/8, 201/8,

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

Prefixes being announced by AfriNIC Region ASes:                  10162
    Total AfriNIC prefixes after maximum aggregation:              2491
    AfriNIC Deaggregation factor:                                  4.08
Prefixes being announced from the AfriNIC address blocks:         10749
    Unique aggregates announced from the AfriNIC address blocks:   3831
AfriNIC Region origin ASes present in the Internet Routing Table:   617
    AfriNIC Prefixes per ASN:                                     17.42
AfriNIC Region origin ASes announcing only one prefix:              186
AfriNIC Region transit ASes present in the Internet Routing Table:  129
Average AfriNIC Region AS path length visible:                      4.8
    Max AfriNIC Region AS path length visible:                       25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    7
Number of AfriNIC addresses announced to Internet:             46191872
    Equivalent to 2 /8s, 192 /16s and 213 /24s
    Percentage of available AfriNIC address space announced:       45.9

AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4766     2952      11557         922   Korea Telecom (KIX)
17974     2514        839          90   PT TELEKOMUNIKASI INDONESIA
 7545     1887        320         109   TPG Internet Pty Ltd
 4755     1738        392         198   TATA Communications formerly 
 9829     1509       1205          40   BSNL National Internet Backbo
 9583     1285         98         538   Sify Limited
 7552     1170       1064          12   Vietel Corporation
 4808     1107       2109         325   CNCGROUP IP network: China169
 9498     1078        310          73   BHARTI Airtel Ltd.
24560     1067        385         164   Bharti Airtel Ltd., Telemedia

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6389     3037       3694          87   bellsouth.net, inc. 
 7029     2173       1265         212   Windstream Communications Inc
18566     2067        382         184   Covad Communications 
22773     1983       2929         125   Cox Communications, Inc.
 1785     1974        677         122   PaeTec Communications, Inc.
20115     1669       1612         612   Charter Communications 
 4323     1609       1139         398   Time Warner Telecom
30036     1344        297         657   Mediacom Communications Corp 
 7018     1315      10807         854   AT&T WorldNet Services
11492     1239        228         330   Cable One 

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8402     1793        544          16   Corbina telecom
 2118     1430         97          13   EUnet/RELCOM Autonomous Syste
34984     1152        235         206   BILISIM TELEKOM
13188      875         99          39   Educational Network
12479      844        786          66   Uni2 Autonomous System
20940      819        286         652   Akamai Technologies European 
31148      794         41          22   FreeNet ISP
 6830      753       2318         440   UPC Distribution Services
 8551      676        370          43   Bezeq International
58113      666         74         386   LIR DATACENTER TELECOM SRL

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
28573     2620       1451          99   NET Servicos de Comunicao S.A
10620     2374        411         217   TVCABLE BOGOTA 
 7303     1676       1153         211   Telecom Argentina Stet-France
 8151     1234       2690         394   UniNet S.A. de C.V. 
 6503     1067        435          68   AVANTEL, S.A. 
18881      859        717          19   Global Village Telecom 
27947      808         88          96   Telconet S.A
11830      725        364          14   Instituto Costarricense de El
 3816      696        306          85   Empresa Nacional de Telecomun
 7738      650       1306          35   Telecomunicacoes da Bahia S.A

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
36998     1137         80           4   MOBITEL
24863      695        274          33   LINKdotNET AS number
 6713      542        617          25   Itissalat Al-MAGHRIB
 8452      361        956           9   TEDATA
24835      275         80           8   RAYA Telecom - Egypt
 3741      261        906         220   The Internet Solution 
12258      193         28          67   Vodacom Internet Company 
29975      191        667          21   Vodacom
16637      187        697          91   MTN Network Solutions
33776      182         12          19   Starcomms Nigeria Limited

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

Global Per AS prefix count summary
----------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6389     3037       3694          87   bellsouth.net, inc. 
 4766     2952      11557         922   Korea Telecom (KIX)
28573     2620       1451          99   NET Servicos de Comunicao S.A
17974     2514        839          90   PT TELEKOMUNIKASI INDONESIA
10620     2374        411         217   TVCABLE BOGOTA 
 7029     2173       1265         212   Windstream Communications Inc
18566     2067        382         184   Covad Communications 
22773     1983       2929         125   Cox Communications, Inc.
 1785     1974        677         122   PaeTec Communications, Inc.
 7545     1887        320         109   TPG Internet Pty Ltd

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

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

  ASN   No of nets  Net Savings Description
28573      2620        2521      NET Servicos de Comunicao S.A
17974      2514        2424      PT TELEKOMUNIKASI INDONESIA
10620      2374        2157      TVCABLE BOGOTA 
 4766      2952        2030      Korea Telecom (KIX)
 7029      2173        1961      Windstream Communications Inc
18566      2067        1883      Covad Communications 
22773      1983        1858      Cox Communications, Inc.
 1785      1974        1852      PaeTec Communications, Inc.
 7545      1887        1778      TPG Internet Pty Ltd
 8402      1793        1777      Corbina telecom

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

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

Bad AS  Designation  Network              Transit AS  Description
15132   UNALLOCATED  12.9.150.0/24         7018       AT&T WorldNet Servic
30031   UNALLOCATED  12.27.122.0/24        7018       AT&T WorldNet Servic
13317   UNALLOCATED  12.44.10.0/24         7018       AT&T WorldNet Servic
23502   UNALLOCATED  12.44.44.0/24         7018       AT&T WorldNet Servic
17300   UNALLOCATED  12.45.103.0/24         209       Qwest 
17300   UNALLOCATED  12.45.110.0/24         701       UUNET Technologies, 
16476   UNALLOCATED  12.46.27.0/24         7018       AT&T WorldNet Servic
14764   UNALLOCATED  12.108.237.0/24       7018       AT&T WorldNet Servic
33649   UNALLOCATED  12.111.112.0/24      19029       New Edge Networks 
26064   UNALLOCATED  12.149.37.0/24        7018       AT&T WorldNet Servic

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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
128.0.0.0/24          2876     Jump Management SRL
128.0.16.0/21        43568     RIPE Network Coordination Cen
128.0.24.0/21        41794     Altline LLC
128.0.55.0/24        48571     SC efectRO SRL
128.0.58.0/23         9050     RTD-ROMTELECOM Autonomous Sys
128.0.60.0/24         9050     RTD-ROMTELECOM Autonomous Sys
128.0.61.0/24         9050     RTD-ROMTELECOM Autonomous Sys
128.0.62.0/24         9050     RTD-ROMTELECOM Autonomous Sys
128.0.63.0/24         9050     RTD-ROMTELECOM Autonomous Sys
128.0.72.0/21        23456     32-bit ASN transition

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

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

Network            Origin AS  Description
41.222.80.0/21       37110     Moztel LDA
62.61.220.0/24       24974     Tachyon Europe BV - Wireless 
62.61.221.0/24       24974     Tachyon Europe BV - Wireless 
64.185.224.0/24      27431     JTL Networks Inc.
64.185.225.0/24      27431     JTL Networks Inc.
64.185.226.0/24      27431     JTL Networks Inc.
64.185.227.0/24      27431     JTL Networks Inc.
64.185.228.0/24      27431     JTL Networks Inc.
64.185.229.0/24      27431     JTL Networks Inc.
64.185.230.0/24      27431     JTL Networks Inc.

Complete listing at http://thyme.rand.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        /8:16       /9:13      /10:29      /11:88      /12:249     
/13:485     /14:884     /15:1562    /16:12691   /17:6597    /18:10920   
/19:21837   /20:31936   /21:33796   /22:46730   /23:41690   /24:236619  
/25:1366    /26:1666    /27:861     /28:44      /29:69      /30:22      
/31:0       /32:19      

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

  ASN   No of nets  Total ann.   Description
18566     2018          2067      Covad Communications 
 6389     1741          3037      bellsouth.net, inc. 
 7029     1611          2173      Windstream Communications Inc
 8402     1497          1793      Corbina telecom
22773     1291          1983      Cox Communications, Inc.
30036     1219          1344      Mediacom Communications Corp 
11492     1198          1239      Cable One 
36998     1131          1137      MOBITEL
 1785     1047          1974      PaeTec Communications, Inc.
 6983     1006          1134      ITC^Deltacom 

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

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

   1:774       2:750       3:3         4:15        5:863       6:5      
   8:542      12:1916     13:3        14:772      15:11       16:3      
  17:9        20:18       23:271      24:1769     27:1468     31:1214   
  32:43       33:2        34:5        36:44       37:1816     38:862    
  39:2        40:169      41:2683     42:178      44:6        46:1797   
  47:2        49:625      50:676      52:12       54:30       55:6      
  57:27       58:1140     59:589      60:306      61:1458     62:1037   
  63:2054     64:4309     65:2182     66:4327     67:2076     68:1127   
  69:3243     70:872      71:532      72:1956     74:2575     75:414    
  76:295      77:1103     78:1057     79:571      80:1233     81:983    
  82:606      83:569      84:515      85:1162     86:464      87:972    
  88:527      89:1798     90:281      91:5481     92:622      93:1712   
  94:1846     95:1726     96:517      97:342      98:1053     99:41     
 100:29      101:315     103:2476    105:488     106:143     107:206    
 108:515     109:1832    110:861     111:1053    112:505     113:785    
 114:694     115:1014    116:877     117:799     118:1026    119:1273   
 120:397     121:824     122:1741    123:1195    124:1333    125:1269   
 128:632     129:223     130:323     131:653     132:340     133:149    
 134:260     135:64      136:223     137:247     138:343     139:186    
 140:199     141:317     142:542     143:374     144:486     145:91     
 146:503     147:384     148:695     149:369     150:163     151:527    
 152:419     153:194     154:44      155:391     156:262     157:394    
 158:269     159:722     160:338     161:425     162:385     163:202    
 164:584     165:448     166:335     167:577     168:1030    169:133    
 170:1024    171:174     172:5       173:1608    174:589     175:455    
 176:1248    177:1858    178:1824    179:3       180:1402    181:386    
 182:1138    183:372     184:665     185:378     186:2310    187:1270   
 188:2019    189:1310    190:6098    192:6520    193:5830    194:4655   
 195:3484    196:1327    197:831     198:4333    199:5292    200:5919   
 201:2370    202:8870    203:8758    204:4523    205:2554    206:2822   
 207:2834    208:4073    209:3580    210:2943    211:1566    212:2027   
 213:1899    214:919     215:98      216:5192    217:1558    218:619    
 219:346     220:1273    221:548     222:313     223:448    

End of report


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