Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Mar 28 18:12:50 UTC 2014


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 29 Mar, 2014

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

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

BGP routing table entries examined:                              489473
    Prefixes after maximum aggregation:                          192590
    Deaggregation factor:                                          2.54
    Unique aggregates announced to Internet:                     241381
Total ASes present in the Internet Routing Table:                 46469
    Prefixes per ASN:                                             10.53
Origin-only ASes present in the Internet Routing Table:           35716
Origin ASes announcing only one prefix:                           16381
Transit ASes present in the Internet Routing Table:                6035
Transit-only ASes present in the Internet Routing Table:            173
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      53
    Max AS path prepend of ASN ( 50404)                              51
Prefixes from unregistered ASNs in the Routing Table:              1863
    Unregistered ASNs in the Routing Table:                         476
Number of 32-bit ASNs allocated by the RIRs:                       6256
Number of 32-bit ASNs visible in the Routing Table:                4718
Prefixes from 32-bit ASNs in the Routing Table:                   15266
Number of bogon 32-bit ASNs visible in the Routing Table:            50
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            444
Number of addresses announced to Internet:                   2662858628
    Equivalent to 158 /8s, 183 /16s and 255 /24s
    Percentage of available address space announced:               71.9
    Percentage of allocated address space announced:               71.9
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               96.0
Total number of prefixes smaller than registry allocations:      170530

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

Prefixes being announced by APNIC Region ASes:                   116226
    Total APNIC prefixes after maximum aggregation:               34666
    APNIC Deaggregation factor:                                    3.35
Prefixes being announced from the APNIC address blocks:          118899
    Unique aggregates announced from the APNIC address blocks:    49753
APNIC Region origin ASes present in the Internet Routing Table:    4908
    APNIC Prefixes per ASN:                                       24.23
APNIC Region origin ASes announcing only one prefix:               1230
APNIC Region transit ASes present in the Internet Routing Table:    855
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         25
Number of APNIC region 32-bit ASNs visible in the Routing Table:    879
Number of APNIC addresses announced to Internet:              729984896
    Equivalent to 43 /8s, 130 /16s and 175 /24s
    Percentage of available APNIC address space announced:         85.3

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-63999, 131072-133631
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:                    166997
    Total ARIN prefixes after maximum aggregation:                83020
    ARIN Deaggregation factor:                                     2.01
Prefixes being announced from the ARIN address blocks:           168430
    Unique aggregates announced from the ARIN address blocks:     78330
ARIN Region origin ASes present in the Internet Routing Table:    16204
    ARIN Prefixes per ASN:                                        10.39
ARIN Region origin ASes announcing only one prefix:                6115
ARIN Region transit ASes present in the Internet Routing Table:    1671
Average ARIN Region AS path length visible:                         4.0
    Max ARIN Region AS path length visible:                          20
Number of ARIN region 32-bit ASNs visible in the Routing Table:      77
Number of ARIN addresses announced to Internet:              1067831936
    Equivalent to 63 /8s, 165 /16s and 210 /24s
    Percentage of available ARIN address space announced:          56.5

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:                    123204
    Total RIPE prefixes after maximum aggregation:                62152
    RIPE Deaggregation factor:                                     1.98
Prefixes being announced from the RIPE address blocks:           127271
    Unique aggregates announced from the RIPE address blocks:     80443
RIPE Region origin ASes present in the Internet Routing Table:    17648
    RIPE Prefixes per ASN:                                         7.21
RIPE Region origin ASes announcing only one prefix:                8286
RIPE Region transit ASes present in the Internet Routing Table:    2863
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          53
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2678
Number of RIPE addresses announced to Internet:               657612420
    Equivalent to 39 /8s, 50 /16s and 94 /24s
    Percentage of available RIPE address space announced:          95.6

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, 56320-58367
                       59392-61439, 61952-62463, 196608-202239
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:                   55383
    Total LACNIC prefixes after maximum aggregation:              10055
    LACNIC Deaggregation factor:                                   5.51
Prefixes being announced from the LACNIC address blocks:          61471
    Unique aggregates announced from the LACNIC address blocks:   28188
LACNIC Region origin ASes present in the Internet Routing Table:   2082
    LACNIC Prefixes per ASN:                                      29.52
LACNIC Region origin ASes announcing only one prefix:               547
LACNIC Region transit ASes present in the Internet Routing Table:   422
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        26
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1070
Number of LACNIC addresses announced to Internet:             154037760
    Equivalent to 9 /8s, 46 /16s and 110 /24s
    Percentage of available LACNIC address space announced:        91.8

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:                  12290
    Total AfriNIC prefixes after maximum aggregation:              2658
    AfriNIC Deaggregation factor:                                  4.62
Prefixes being announced from the AfriNIC address blocks:         12958
    Unique aggregates announced from the AfriNIC address blocks:   4292
AfriNIC Region origin ASes present in the Internet Routing Table:   709
    AfriNIC Prefixes per ASN:                                     18.28
AfriNIC Region origin ASes announcing only one prefix:              203
AfriNIC Region transit ASes present in the Internet Routing Table:  151
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:   14
Number of AfriNIC addresses announced to Internet:             53079552
    Equivalent to 3 /8s, 41 /16s and 238 /24s
    Percentage of available AfriNIC address space announced:       52.7

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     2972      11582         896   Korea Telecom
17974     2776        903          78   PT Telekomunikasi Indonesia
 7545     2229        320         118   TPG Telecom Limited
 4755     1843        396         197   TATA Communications formerly 
 9829     1621       1288          35   National Internet Backbone
 4808     1360       2227         386   CNCGROUP IP network China169 
 9583     1316        102         533   Sify Limited
 9498     1247        312          79   BHARTI Airtel Ltd.
 7552     1228       1082          13   Viettel Corporation
24560     1123        384         177   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     3009       3688          53   BellSouth.net Inc.
22773     2410       2938         140   Cox Communications Inc.
 1785     2193        696         130   PaeTec Communications, Inc.
18566     2048        379         178   MegaPath Corporation
20115     1695       1675         576   Charter Communications
 4323     1632       1089         414   tw telecom holdings, inc.
  701     1485      11158         756   MCI Communications Services, 
30036     1393        301         548   Mediacom Communications Corp
 6983     1328        800         308   ITC^Deltacom
22561     1304        402         232   CenturyTel Internet Holdings,

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     1717        544          15   OJSC "Vimpelcom"
34984     1548        263         278   TELLCOM ILETISIM HIZMETLERI A
20940     1267        479         950   Akamai International B.V.
13188     1048        100          33   TOV "Bank-Inform"
31148     1017         45          21   Freenet Ltd.
 8551      966        370          41   Bezeq International-Ltd
 6849      862        361          34   JSC "Ukrtelecom"
 6830      763       2329         426   Liberty Global Operations B.V
12479      715        797          56   France Telecom Espana SA
35228      555        246          16   Telefonica UK Limited

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     3633       1947          96   NET Serviços de Comunicação S
10620     2804        449         192   Telmex Colombia S.A.
18881     1917        972          21   Global Village Telecom
 7303     1751       1172         228   Telecom Argentina S.A.
 8151     1397       2922         407   Uninet S.A. de C.V.
 6503     1158        434          61   Axtel, S.A.B. de C.V.
 7738      912       1754          40   Telemar Norte Leste S.A.
27947      860        113          48   Telconet S.A
11830      847        364          15   Instituto Costarricense de El
 3816      785        319         128   COLOMBIA TELECOMUNICACIONES S

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     1637        240           6   Sudanese Mobile Telephone (ZA
24863      947        280          26   Link Egypt (Link.NET)
 6713      603        701          28   Office National des Postes et
 8452      522        958          13   TE-AS
24835      303        144           9   Vodafone Data
36992      284        783          24   ETISALAT MISR
 3741      248        921         209   Internet Solutions
15706      219         32           6   Sudatel (Sudan Telecom Co. Lt
29571      218         22          18   Cote d'Ivoire Telecom
37054      215         23          11   Data Telecom Service

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     3633       1947          96   NET Serviços de Comunicação S
 6389     3009       3688          53   BellSouth.net Inc.
 4766     2972      11582         896   Korea Telecom
10620     2804        449         192   Telmex Colombia S.A.
17974     2776        903          78   PT Telekomunikasi Indonesia
22773     2410       2938         140   Cox Communications Inc.
 7545     2229        320         118   TPG Telecom Limited
 1785     2193        696         130   PaeTec Communications, Inc.
18566     2048        379         178   MegaPath Corporation
18881     1917        972          21   Global Village Telecom

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      3009        2956      BellSouth.net Inc.
17974      2776        2698      PT Telekomunikasi Indonesia
10620      2804        2612      Telmex Colombia S.A.
22773      2410        2270      Cox Communications Inc.
 7545      2229        2111      TPG Telecom Limited
 4766      2972        2076      Korea Telecom
 1785      2193        2063      PaeTec Communications, Inc.
18881      1917        1896      Global Village Telecom
18566      2048        1870      MegaPath Corporation
 8402      1717        1702      OJSC "Vimpelcom"

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

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

Bad AS  Designation  Network              Transit AS  Description
65456   PRIVATE      5.109.32.0/19        23456       32bit Transition AS
65456   PRIVATE      5.109.96.0/19        23456       32bit Transition AS
30662   UNALLOCATED  8.2.129.0/24          3356       Level 3 Communicatio
14728   UNALLOCATED  8.8.192.0/23          3356       Level 3 Communicatio
14728   UNALLOCATED  8.8.196.0/22          3356       Level 3 Communicatio
14728   UNALLOCATED  8.8.200.0/23          3356       Level 3 Communicatio
14728   UNALLOCATED  8.8.202.0/23          3356       Level 3 Communicatio
53506   UNALLOCATED  8.17.102.0/23         2828       XO Communications
20260   UNALLOCATED  8.25.160.0/24         3356       Level 3 Communicatio
20260   UNALLOCATED  8.25.161.0/24         3356       Level 3 Communicatio

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

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

Network            Origin AS  Description
27.100.7.0/24        56096     >>UNKNOWN<<
41.73.1.0/24         37004     >>UNKNOWN<<
41.73.2.0/24         37004     >>UNKNOWN<<
41.73.10.0/24        37004     >>UNKNOWN<<
41.73.11.0/24        37004     >>UNKNOWN<<
41.73.12.0/24        37004     >>UNKNOWN<<
41.73.13.0/24        37004     >>UNKNOWN<<
41.73.14.0/24        37004     >>UNKNOWN<<
41.73.15.0/24        37004     >>UNKNOWN<<
41.73.16.0/24        37004     >>UNKNOWN<<

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       /9:12      /10:30      /11:90      /12:255     
/13:478     /14:952     /15:1660    /16:12892   /17:6788    /18:11531   
/19:24017   /20:33896   /21:36568   /22:52176   /23:45672   /24:260264  
/25:791     /26:883     /27:422     /28:13      /29:20      /30:8       
/31:1       /32:38      

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

  ASN   No of nets  Total ann.   Description
18566     2003          2048      MegaPath Corporation
 6389     1695          3009      BellSouth.net Inc.
22773     1647          2410      Cox Communications Inc.
36998     1599          1637      Sudanese Mobile Telephone (ZA
 8402     1394          1717      OJSC "Vimpelcom"
30036     1231          1393      Mediacom Communications Corp
11492     1178          1226      CABLE ONE, INC.
 1785     1168          2193      PaeTec Communications, Inc.
 6983     1044          1328      ITC^Deltacom
34984     1017          1548      TELLCOM ILETISIM HIZMETLERI A

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

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

   1:1011      2:694       3:3         4:15        5:918       6:19     
   8:722      12:1842     13:4        14:973      15:13       16:3      
  17:31       18:21       20:35       23:763      24:1728     25:1      
  27:1769     31:1523     32:40       33:2        34:5        36:127    
  37:1829     38:944      39:4        40:195      41:3129     42:244    
  44:18       46:2166     47:18       49:676      50:917      52:12     
  54:47       55:9        57:29       58:1176     59:601      60:380    
  61:1529     62:1263     63:1984     64:4354     65:2256     66:4164   
  67:2046     68:1019     69:3317     70:842      71:452      72:1970   
  74:2627     75:315      76:404      77:1363     78:1041     79:717    
  80:1326     81:1143     82:700      83:758      84:742      85:1300   
  86:435      87:1195     88:520      89:1774     90:149      91:5796   
  92:668      93:1713     94:2066     95:1514     96:538      97:349    
  98:1080     99:46      100:50      101:832     103:4516    105:534    
 106:166     107:576     108:559     109:2036    110:981     111:1285   
 112:663     113:843     114:876     115:1107    116:1057    117:875    
 118:1368    119:1333    120:376     121:795     122:1911    123:1296   
 124:1461    125:1485    128:658     129:318     130:351     131:651    
 132:359     133:159     134:318     135:74      136:253     137:321    
 138:351     139:166     140:211     141:359     142:558     143:424    
 144:500     145:103     146:607     147:434     148:907     149:343    
 150:161     151:598     152:424     153:219     154:237     155:469    
 156:336     157:339     158:219     159:880     160:346     161:477    
 162:1283    163:222     164:680     165:616     166:280     167:603    
 168:1029    169:124     170:1296    171:191     172:23      173:1593   
 174:684     175:605     176:1476    177:2827    178:1966    179:636    
 180:1679    181:1039    182:1528    183:514     184:722     185:1441   
 186:2836    187:1489    188:1875    189:1429    190:7436    191:132    
 192:7180    193:5473    194:4009    195:3371    196:1377    197:1118   
 198:4986    199:5633    200:6065    201:2657    202:8967    203:8928   
 204:4654    205:2703    206:2938    207:2957    208:4004    209:3731   
 210:3096    211:1699    212:2224    213:2077    214:895     215:85     
 216:5514    217:1686    218:587     219:320     220:1282    221:594    
 222:352     223:606    

End of report



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