Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Aug 22 18:12:14 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 23 Aug, 2014

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

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

BGP routing table entries examined:                              507746
    Prefixes after maximum aggregation:                          197121
    Deaggregation factor:                                          2.58
    Unique aggregates announced to Internet:                     249820
Total ASes present in the Internet Routing Table:                 47537
    Prefixes per ASN:                                             10.68
Origin-only ASes present in the Internet Routing Table:           36082
Origin ASes announcing only one prefix:                           16389
Transit ASes present in the Internet Routing Table:                6142
Transit-only ASes present in the Internet Routing Table:            179
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:              1644
    Unregistered ASNs in the Routing Table:                         436
Number of 32-bit ASNs allocated by the RIRs:                       7255
Number of 32-bit ASNs visible in the Routing Table:                5313
Prefixes from 32-bit ASNs in the Routing Table:                   19214
Number of bogon 32-bit ASNs visible in the Routing Table:           584
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            387
Number of addresses announced to Internet:                   2713759876
    Equivalent to 161 /8s, 192 /16s and 176 /24s
    Percentage of available address space announced:               73.3
    Percentage of allocated address space announced:               73.3
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               96.8
Total number of prefixes smaller than registry allocations:      174262

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

Prefixes being announced by APNIC Region ASes:                   123564
    Total APNIC prefixes after maximum aggregation:               35943
    APNIC Deaggregation factor:                                    3.44
Prefixes being announced from the APNIC address blocks:          127072
    Unique aggregates announced from the APNIC address blocks:    52286
APNIC Region origin ASes present in the Internet Routing Table:    4975
    APNIC Prefixes per ASN:                                       25.54
APNIC Region origin ASes announcing only one prefix:               1230
APNIC Region transit ASes present in the Internet Routing Table:    868
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         24
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1057
Number of APNIC addresses announced to Internet:              735421824
    Equivalent to 43 /8s, 213 /16s and 165 /24s
    Percentage of available APNIC address space announced:         86.0

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:                    169593
    Total ARIN prefixes after maximum aggregation:                84870
    ARIN Deaggregation factor:                                     2.00
Prefixes being announced from the ARIN address blocks:           171510
    Unique aggregates announced from the ARIN address blocks:     80574
ARIN Region origin ASes present in the Internet Routing Table:    16364
    ARIN Prefixes per ASN:                                        10.48
ARIN Region origin ASes announcing only one prefix:                6119
ARIN Region transit ASes present in the Internet Routing Table:    1697
Average ARIN Region AS path length visible:                         4.0
    Max ARIN Region AS path length visible:                          22
Number of ARIN region 32-bit ASNs visible in the Routing Table:     174
Number of ARIN addresses announced to Internet:              1092923648
    Equivalent to 65 /8s, 36 /16s and 177 /24s
    Percentage of available ARIN address space announced:          57.8

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, 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:                    124822
    Total RIPE prefixes after maximum aggregation:                63061
    RIPE Deaggregation factor:                                     1.98
Prefixes being announced from the RIPE address blocks:           129640
    Unique aggregates announced from the RIPE address blocks:     82097
RIPE Region origin ASes present in the Internet Routing Table:    17709
    RIPE Prefixes per ASN:                                         7.32
RIPE Region origin ASes announcing only one prefix:                8230
RIPE Region transit ASes present in the Internet Routing Table:    2884
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:    2738
Number of RIPE addresses announced to Internet:               658608004
    Equivalent to 39 /8s, 65 /16s and 143 /24s
    Percentage of available RIPE address space announced:          95.7

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, 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:                   59435
    Total LACNIC prefixes after maximum aggregation:              10461
    LACNIC Deaggregation factor:                                   5.68
Prefixes being announced from the LACNIC address blocks:          67321
    Unique aggregates announced from the LACNIC address blocks:   29947
LACNIC Region origin ASes present in the Internet Routing Table:   2237
    LACNIC Prefixes per ASN:                                      30.09
LACNIC Region origin ASes announcing only one prefix:               594
LACNIC Region transit ASes present in the Internet Routing Table:   454
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:  1295
Number of LACNIC addresses announced to Internet:             168010880
    Equivalent to 10 /8s, 3 /16s and 164 /24s
    Percentage of available LACNIC address space announced:       100.1

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:                  11029
    Total AfriNIC prefixes after maximum aggregation:              2750
    AfriNIC Deaggregation factor:                                  4.01
Prefixes being announced from the AfriNIC address blocks:         11816
    Unique aggregates announced from the AfriNIC address blocks:   4600
AfriNIC Region origin ASes present in the Internet Routing Table:   736
    AfriNIC Prefixes per ASN:                                     16.05
AfriNIC Region origin ASes announcing only one prefix:              216
AfriNIC Region transit ASes present in the Internet Routing Table:  162
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:   49
Number of AfriNIC addresses announced to Internet:             58419200
    Equivalent to 3 /8s, 123 /16s and 104 /24s
    Percentage of available AfriNIC address space announced:       58.0

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     2932      11589         917   Korea Telecom
17974     2815        901          75   PT Telekomunikasi Indonesia
 7545     2329        336         120   TPG Telecom Limited
 4755     1891        413         191   TATA Communications formerly 
 9829     1655       1307          32   National Internet Backbone
 9583     1315        104         537   Sify Limited
 9498     1301        317          92   BHARTI Airtel Ltd.
 7552     1238       1098          14   Viettel Corporation
 4808     1200       2156         367   CNCGROUP IP network China169 
24560     1167        404         190   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
22773     2929       2940         142   Cox Communications Inc.
 6389     2898       3688          51   BellSouth.net Inc.
18566     2045        379         178   MegaPath Corporation
20115     1763       1749         536   Charter Communications
 4323     1631       1073         411   tw telecom holdings, inc.
30036     1542        322         550   Mediacom Communications Corp
 6983     1443        817         314   ITC^Deltacom
  701     1439      11243         724   MCI Communications Services, 
22561     1306        407         235   CenturyTel Internet Holdings,
 7029     1259       1958         305   Windstream Communications Inc

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
34984     1736        298         282   TELLCOM ILETISIM HIZMETLERI A
20940     1477        575        1087   Akamai International B.V.
 8402     1284        544          15   OJSC "Vimpelcom"
13188     1050         97          48   TOV "Bank-Inform"
31148     1042         45          20   Freenet Ltd.
 8551      987        371          41   Bezeq International-Ltd
 6849      802        356          27   JSC "Ukrtelecom"
12479      776        798          58   France Telecom Espana SA
 6830      772       2334         427   Liberty Global Operations B.V
 9198      632        346          28   JSC Kazakhtelecom

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     3361       2017         147   NET Serviços de Comunicação S
10620     2960        480         214   Telmex Colombia S.A.
18881     2083       1036          22   Global Village Telecom
 7303     1764       1179         231   Telecom Argentina S.A.
 6147     1743        374          30   Telefonica del Peru S.A.A.
 8151     1466       2995         421   Uninet S.A. de C.V.
 6503     1077        434          62   Axtel, S.A.B. de C.V.
 7738      977       1882          41   Telemar Norte Leste S.A.
27947      901        130          51   Telconet S.A
26615      869       2325          35   Tim Celular 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
24863      931        280          26   Link Egypt (Link.NET)
 6713      669        744          37   Office National des Postes et
 8452      598        958          13   TE-AS
36992      312        784          26   ETISALAT MISR
24835      307        144           9   Vodafone Data
 3741      249        920         212   Internet Solutions
29571      237         22          17   Cote d'Ivoire Telecom
37054      236         19           6   Data Telecom Service
15706      185         32           6   Sudatel (Sudan Telecom Co. Lt
12258      174         26          71   MWEB CONNECT (PROPRIETARY) LI

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     3361       2017         147   NET Serviços de Comunicação S
10620     2960        480         214   Telmex Colombia S.A.
 4766     2932      11589         917   Korea Telecom
22773     2929       2940         142   Cox Communications Inc.
 6389     2898       3688          51   BellSouth.net Inc.
17974     2815        901          75   PT Telekomunikasi Indonesia
 7545     2329        336         120   TPG Telecom Limited
18881     2083       1036          22   Global Village Telecom
18566     2045        379         178   MegaPath Corporation
 4755     1891        413         191   TATA Communications formerly 

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      2898        2847      BellSouth.net Inc.
22773      2929        2787      Cox Communications Inc.
10620      2960        2746      Telmex Colombia S.A.
17974      2815        2740      PT Telekomunikasi Indonesia
 7545      2329        2209      TPG Telecom Limited
18881      2083        2061      Global Village Telecom
 4766      2932        2015      Korea Telecom
18566      2045        1867      MegaPath Corporation
 6147      1743        1713      Telefonica del Peru S.A.A.
 4755      1891        1700      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
30662   UNALLOCATED  8.2.129.0/24          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
46473   UNALLOCATED  8.27.122.0/24        12180       Internap Network Ser
46473   UNALLOCATED  8.27.124.0/24        12180       Internap Network Ser
55020   UNALLOCATED  8.30.123.0/24         3356       Level 3 Communicatio
27205   UNALLOCATED  8.38.16.0/21          6461       Abovenet Communicati
15347   UNALLOCATED  8.224.147.0/24       12064       Cox Communications I
33628   UNALLOCATED  12.0.239.0/24         1239       Sprint

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

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

Network            Origin AS  Description
24.231.96.0/24       21548     MTO Telecom Inc.
27.100.7.0/24        56096     >>UNKNOWN<<
41.70.16.0/20        37098     globe internet limited
41.70.40.0/21        37098     globe internet limited
41.70.64.0/21        37098     globe internet limited
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<<

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      /10:30      /11:91      /12:260     
/13:499     /14:981     /15:1706    /16:13021   /17:7022    /18:11724   
/19:24621   /20:35264   /21:37568   /22:54097   /23:47718   /24:271038  
/25:806     /26:811     /27:405     /28:13      /29:17      /30:10      
/31:1       /32:14      

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

  ASN   No of nets  Total ann.   Description
22773     2165          2929      Cox Communications Inc.
18566     2000          2045      MegaPath Corporation
 6389     1675          2898      BellSouth.net Inc.
30036     1391          1542      Mediacom Communications Corp
 6147     1316          1743      Telefonica del Peru S.A.A.
11492     1155          1206      CABLE ONE, INC.
 6983     1149          1443      ITC^Deltacom
34984     1057          1736      TELLCOM ILETISIM HIZMETLERI A
10620     1036          2960      Telmex Colombia S.A.
22561     1001          1306      CenturyTel Internet Holdings,

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

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

   1:1333      2:657       3:3         4:15        5:1075      6:21     
   8:727      12:1860     13:4        14:1110     15:15       16:2      
  17:40       18:21       20:51       23:906      24:1797     27:1795   
  31:1475     32:41       33:2        34:5        36:146      37:1853   
  38:967      39:11       40:210      41:2561     42:268      43:199    
  44:16       45:53       46:2139     47:24       49:734      50:829    
  52:12       54:49       55:4        56:4        57:32       58:1212   
  59:662      60:429      61:1681     62:1241     63:1829     64:4391   
  65:2317     66:4189     67:2057     68:1046     69:3361     70:902    
  71:459      72:2092     74:2600     75:337      76:415      77:1616   
  78:799      79:723      80:1315     81:1209     82:760      83:771    
  84:775      85:1317     86:426      87:1147     88:463      89:1798   
  90:135      91:5681     92:765      93:1775     94:2023     95:1598   
  96:513      97:361      98:1126     99:49      100:65      101:704    
 103:5398    104:208     105:37      106:179     107:598     108:582    
 109:2015    110:1027    111:1350    112:702     113:864     114:779    
 115:1149    116:1125    117:984     118:1524    119:1409    120:421    
 121:970     122:2162    123:1611    124:1423    125:1566    128:583    
 129:347     130:366     131:722     132:414     133:162     134:319    
 135:75      136:301     137:287     138:385     139:172     140:228    
 141:396     142:562     143:422     144:506     145:116     146:617    
 147:498     148:961     149:410     150:435     151:593     152:457    
 153:219     154:335     155:524     156:355     157:328     158:280    
 159:938     160:328     161:575     162:1709    163:342     164:689    
 165:641     166:345     167:669     168:1112    169:122     170:1385   
 171:182     172:64      173:1523    174:711     175:623     176:1463   
 177:3469    178:2067    179:770     180:1777    181:1581    182:1622   
 183:556     184:702     185:1963    186:2894    187:1623    188:2205   
 189:1460    190:7989    191:699     192:7512    193:5496    194:4060   
 195:3567    196:1430    197:679     198:5142    199:5487    200:6466   
 201:2850    202:9187    203:9017    204:4556    205:2642    206:2966   
 207:2892    208:3957    209:3704    210:3297    211:1837    212:2338   
 213:2134    214:881     215:88      216:5605    217:1682    218:615    
 219:408     220:1369    221:645     222:478     223:595    

End of report


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