Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Aug 23 18:33:55 UTC 2013


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 at lists.apnic.net

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

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

Routing Table Report   04:00 +10GMT Sat 24 Aug, 2013

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

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

BGP routing table entries examined:                              463793
    Prefixes after maximum aggregation:                          187304
    Deaggregation factor:                                          2.48
    Unique aggregates announced to Internet:                     230444
Total ASes present in the Internet Routing Table:                 44792
    Prefixes per ASN:                                             10.35
Origin-only ASes present in the Internet Routing Table:           35028
Origin ASes announcing only one prefix:                           16228
Transit ASes present in the Internet Routing Table:                5898
Transit-only ASes present in the Internet Routing Table:            174
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:              4740
    Unregistered ASNs in the Routing Table:                        1572
Number of 32-bit ASNs allocated by the RIRs:                       4971
Number of 32-bit ASNs visible in the Routing Table:                3866
Prefixes from 32-bit ASNs in the Routing Table:                   11761
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            320
Number of addresses announced to Internet:                   2636723020
    Equivalent to 157 /8s, 41 /16s and 51 /24s
    Percentage of available address space announced:               71.2
    Percentage of allocated address space announced:               71.2
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               94.9
Total number of prefixes smaller than registry allocations:      162609

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

Prefixes being announced by APNIC Region ASes:                   109696
    Total APNIC prefixes after maximum aggregation:               33394
    APNIC Deaggregation factor:                                    3.28
Prefixes being announced from the APNIC address blocks:          111547
    Unique aggregates announced from the APNIC address blocks:    46487
APNIC Region origin ASes present in the Internet Routing Table:    4868
    APNIC Prefixes per ASN:                                       22.91
APNIC Region origin ASes announcing only one prefix:               1230
APNIC Region transit ASes present in the Internet Routing Table:    824
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         23
Number of APNIC region 32-bit ASNs visible in the Routing Table:    647
Number of APNIC addresses announced to Internet:              726650112
    Equivalent to 43 /8s, 79 /16s and 205 /24s
    Percentage of available APNIC address space announced:         84.9

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:                    161354
    Total ARIN prefixes after maximum aggregation:                80971
    ARIN Deaggregation factor:                                     1.99
Prefixes being announced from the ARIN address blocks:           161884
    Unique aggregates announced from the ARIN address blocks:     75042
ARIN Region origin ASes present in the Internet Routing Table:    15831
    ARIN Prefixes per ASN:                                        10.23
ARIN Region origin ASes announcing only one prefix:                6007
ARIN Region transit ASes present in the Internet Routing Table:    1670
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:      19
Number of ARIN addresses announced to Internet:              1070483456
    Equivalent to 63 /8s, 206 /16s and 72 /24s
    Percentage of available ARIN address space announced:          56.6

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, 46080-47103
                       53248-55295, 62464-63487, 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:                    118625
    Total RIPE prefixes after maximum aggregation:                60768
    RIPE Deaggregation factor:                                     1.95
Prefixes being announced from the RIPE address blocks:           122478
    Unique aggregates announced from the RIPE address blocks:     79045
RIPE Region origin ASes present in the Internet Routing Table:    17370
    RIPE Prefixes per ASN:                                         7.05
RIPE Region origin ASes announcing only one prefix:                8230
RIPE Region transit ASes present in the Internet Routing Table:    2811
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          28
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2386
Number of RIPE addresses announced to Internet:               657049124
    Equivalent to 39 /8s, 41 /16s and 198 /24s
    Percentage of available RIPE address space announced:          95.5

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:                   50637
    Total LACNIC prefixes after maximum aggregation:               9581
    LACNIC Deaggregation factor:                                   5.29
Prefixes being announced from the LACNIC address blocks:          55338
    Unique aggregates announced from the LACNIC address blocks:   25644
LACNIC Region origin ASes present in the Internet Routing Table:   2003
    LACNIC Prefixes per ASN:                                      27.63
LACNIC Region origin ASes announcing only one prefix:               568
LACNIC Region transit ASes present in the Internet Routing Table:   367
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        29
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   808
Number of LACNIC addresses announced to Internet:             135501864
    Equivalent to 8 /8s, 19 /16s and 152 /24s
    Percentage of available LACNIC address space announced:        80.8

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 262144-263679 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:                  11632
    Total AfriNIC prefixes after maximum aggregation:              2548
    AfriNIC Deaggregation factor:                                  4.57
Prefixes being announced from the AfriNIC address blocks:         12226
    Unique aggregates announced from the AfriNIC address blocks:   3928
AfriNIC Region origin ASes present in the Internet Routing Table:   651
    AfriNIC Prefixes per ASN:                                     18.78
AfriNIC Region origin ASes announcing only one prefix:              193
AfriNIC Region transit ASes present in the Internet Routing Table:  135
Average AfriNIC Region AS path length visible:                      4.8
    Max AfriNIC Region AS path length visible:                       24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    6
Number of AfriNIC addresses announced to Internet:             46605824
    Equivalent to 2 /8s, 199 /16s and 38 /24s
    Percentage of available AfriNIC address space announced:       46.3

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     2922      11561         921   Korea Telecom (KIX)
17974     2656        871          92   PT TELEKOMUNIKASI INDONESIA
 7545     2062        321         113   TPG Internet Pty Ltd
 4755     1761        391         189   TATA Communications formerly 
 9829     1530       1221          45   BSNL National Internet Backbo
 9583     1226         92         505   Sify Limited
 9498     1174        309          70   BHARTI Airtel Ltd.
 4808     1152       2126         335   CNCGROUP IP network: China169
 7552     1139       1080          13   Vietel Corporation
24560     1089        394         160   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     2976       3689          62   bellsouth.net, inc. 
18566     2065        382         184   Covad Communications 
22773     2039       2933         123   Cox Communications, Inc.
 1785     2006        679         125   PaeTec Communications, Inc.
20115     1674       1645         627   Charter Communications 
 4323     1621       1105         408   Time Warner Telecom
  701     1522      11103         798   UUNET Technologies, Inc. 
30036     1346        301         643   Mediacom Communications Corp 
 7018     1312      11293         829   AT&T WorldNet Services
11492     1223        218         361   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     1585        544          16   Corbina telecom
34984     1306        244         223   BILISIM TELEKOM
31148      979         43          18   FreeNet ISP
20940      971        349         749   Akamai Technologies European 
 2118      962         97          13   EUnet/RELCOM Autonomous Syste
 6830      898       2371         429   UPC Distribution Services
13188      845         99          71   Educational Network
 8551      747        370          41   Bezeq International
12479      687        797          53   Uni2 Autonomous System
58113      541         55         339   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     3163       1682         108   NET Servicos de Comunicao S.A
10620     2673        425         219   TVCABLE BOGOTA 
 7303     1732       1157         222   Telecom Argentina Stet-France
18881     1454        844          20   Global Village Telecom 
 8151     1280       2767         390   UniNet S.A. de C.V. 
11830      945        364          15   Instituto Costarricense de El
27947      837         94          91   Telconet S.A
 6503      787        434          63   AVANTEL, S.A. 
 3816      721        302          83   Empresa Nacional de Telecomun
 7738      698       1370          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     1861        112           5   MOBITEL
24863      871        274          30   LINKdotNET AS number
 6713      543        633          26   Itissalat Al-MAGHRIB
 8452      437        956           9   TEDATA
24835      291         80           8   RAYA Telecom - Egypt
 3741      258        921         217   The Internet Solution 
15706      221         32           6   Sudatel Internet Exchange Aut
29571      220         17          12   Ci Telecom Autonomous system 
36992      220        501          29   Etisalat MISR
12258      193         28          71   Vodacom Internet Company 

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
28573     3163       1682         108   NET Servicos de Comunicao S.A
 6389     2976       3689          62   bellsouth.net, inc. 
 4766     2922      11561         921   Korea Telecom (KIX)
10620     2673        425         219   TVCABLE BOGOTA 
17974     2656        871          92   PT TELEKOMUNIKASI INDONESIA
18566     2065        382         184   Covad Communications 
 7545     2062        321         113   TPG Internet Pty Ltd
22773     2039       2933         123   Cox Communications, Inc.
 1785     2006        679         125   PaeTec Communications, Inc.
36998     1861        112           5   MOBITEL

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

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

  ASN   No of nets  Net Savings Description
 6389      2976        2914      bellsouth.net, inc. 
17974      2656        2564      PT TELEKOMUNIKASI INDONESIA
10620      2673        2454      TVCABLE BOGOTA 
 4766      2922        2001      Korea Telecom (KIX)
 7545      2062        1949      TPG Internet Pty Ltd
22773      2039        1916      Cox Communications, Inc.
18566      2065        1881      Covad Communications 
 1785      2006        1881      PaeTec Communications, Inc.
36998      1861        1856      MOBITEL
 4755      1761        1572      TATA Communications formerly 

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 
30621   UNALLOCATED  12.151.74.0/23        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
100.100.0.0/24        4847     China Networks Inter-Exchange

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

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

Network            Origin AS  Description
23.90.128.0/18       27418     OUTOFWALL INC.
23.91.0.0/19         40676     Psychz Networks 
23.91.32.0/19        36315     Servpac Inc. 
23.92.16.0/21         8001     Net Access Corporation 
23.92.24.0/22         6939     Hurricane Electric 
23.92.48.0/20        62471     SupremeBytes, LLC
23.92.64.0/24        54540     Incero LLC
23.92.65.0/24        54540     Incero LLC
23.92.66.0/24        54540     Incero LLC
23.92.67.0/24        54540     Incero LLC

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       /9:11      /10:30      /11:93      /12:250     
/13:480     /14:906     /15:1616    /16:12745   /17:6658    /18:11054   
/19:22680   /20:32290   /21:34899   /22:48966   /23:42842   /24:245731  
/25:877     /26:1012    /27:481     /28:44      /29:75      /30:18      
/31:0       /32:19      

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

  ASN   No of nets  Total ann.   Description
18566     2016          2065      Covad Communications 
36998     1826          1861      MOBITEL
 6389     1711          2976      bellsouth.net, inc. 
22773     1328          2039      Cox Communications, Inc.
 8402     1321          1585      Corbina telecom
30036     1209          1346      Mediacom Communications Corp 
11492     1184          1223      Cable One 
 1785     1079          2006      PaeTec Communications, Inc.
 6983     1023          1151      ITC^Deltacom 
10620      991          2673      TVCABLE BOGOTA 

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

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

   1:800       2:718       3:3         4:19        5:913       6:17     
   8:600      12:1894     13:2        14:872      15:11       16:3      
  17:11       18:19       20:18       23:360      24:1739     27:1551   
  31:1410     32:45       33:2        34:5        36:70       37:1826   
  38:901      39:2        40:180      41:3252     42:243      44:9      
  46:1981     47:3        49:661      50:842      52:12       54:37     
  55:6        57:26       58:1169     59:616      60:332      61:1400   
  62:1176     63:1999     64:4550     65:2247     66:4199     67:2078   
  68:1092     69:3305     70:864      71:495      72:2009     74:2540   
  75:325      76:306      77:1159     78:1115     79:623      80:1308   
  81:1021     82:647      83:584      84:571      85:1219     86:482    
  87:1051     88:539      89:1821     90:158      91:5581     92:641    
  93:1661     94:2022     95:1550     96:587      97:347      98:1038   
  99:44      100:29      101:597     103:3181    105:519     106:138    
 107:210     108:498     109:1883    110:946     111:1104    112:568    
 113:792     114:729     115:1029    116:964     117:806     118:1120   
 119:1289    120:367     121:740     122:1864    123:1247    124:1373   
 125:1348    128:607     129:223     130:310     131:671     132:346    
 133:160     134:279     135:67      136:267     137:268     138:347    
 139:189     140:200     141:322     142:548     143:389     144:499    
 145:95      146:531     147:481     148:673     149:350     150:151    
 151:560     152:416     153:194     154:30      155:483     156:272    
 157:406     158:282     159:748     160:352     161:457     162:595    
 163:221     164:628     165:568     166:255     167:603     168:1030   
 169:126     170:1074    171:191     172:25      173:1583    174:515    
 175:496     176:1190    177:2182    178:1903    179:102     180:1525   
 181:648     182:1226    183:441     184:664     185:769     186:2459   
 187:1407    188:1893    189:1283    190:6891    192:6946    193:5541   
 194:4605    195:3603    196:1333    197:1009    198:4612    199:5426   
 200:5981    201:2571    202:8890    203:8821    204:4530    205:2604   
 206:2834    207:2914    208:3997    209:3640    210:2913    211:1557   
 212:2262    213:2034    214:924     215:100     216:5309    217:1653   
 218:619     219:304     220:1277    221:553     222:324     223:504    


End of report



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