Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Sep 5 18:13:20 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 06 Sep, 2014

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

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

BGP routing table entries examined:                              510100
    Prefixes after maximum aggregation:                          198112
    Deaggregation factor:                                          2.57
    Unique aggregates announced to Internet:                     250288
Total ASes present in the Internet Routing Table:                 47620
    Prefixes per ASN:                                             10.71
Origin-only ASes present in the Internet Routing Table:           36120
Origin ASes announcing only one prefix:                           16393
Transit ASes present in the Internet Routing Table:                6143
Transit-only ASes present in the Internet Routing Table:            175
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      40
    Max AS path prepend of ASN ( 55644)                              33
Prefixes from unregistered ASNs in the Routing Table:              1717
    Unregistered ASNs in the Routing Table:                         447
Number of 32-bit ASNs allocated by the RIRs:                       7325
Number of 32-bit ASNs visible in the Routing Table:                5357
Prefixes from 32-bit ASNs in the Routing Table:                   19764
Number of bogon 32-bit ASNs visible in the Routing Table:           637
Special use prefixes present in the Routing Table:                   13
Prefixes being announced from unallocated address space:            359
Number of addresses announced to Internet:                   2709663044
    Equivalent to 161 /8s, 130 /16s and 45 /24s
    Percentage of available address space announced:               73.2
    Percentage of allocated address space announced:               73.2
    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:      175164

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

Prefixes being announced by APNIC Region ASes:                   124791
    Total APNIC prefixes after maximum aggregation:               36480
    APNIC Deaggregation factor:                                    3.42
Prefixes being announced from the APNIC address blocks:          128407
    Unique aggregates announced from the APNIC address blocks:    52594
APNIC Region origin ASes present in the Internet Routing Table:    4976
    APNIC Prefixes per ASN:                                       25.81
APNIC Region origin ASes announcing only one prefix:               1222
APNIC Region transit ASes present in the Internet Routing Table:    866
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         40
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1085
Number of APNIC addresses announced to Internet:              735584832
    Equivalent to 43 /8s, 216 /16s and 34 /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, 63488-64098, 131072-135580
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:                    169824
    Total ARIN prefixes after maximum aggregation:                85082
    ARIN Deaggregation factor:                                     2.00
Prefixes being announced from the ARIN address blocks:           171838
    Unique aggregates announced from the ARIN address blocks:     80213
ARIN Region origin ASes present in the Internet Routing Table:    16357
    ARIN Prefixes per ASN:                                        10.51
ARIN Region origin ASes announcing only one prefix:                6122
ARIN Region transit ASes present in the Internet Routing Table:    1694
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:     180
Number of ARIN addresses announced to Internet:              1084222720
    Equivalent to 64 /8s, 159 /16s and 237 /24s
    Percentage of available ARIN address space announced:          57.4

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:                    125056
    Total RIPE prefixes after maximum aggregation:                63097
    RIPE Deaggregation factor:                                     1.98
Prefixes being announced from the RIPE address blocks:           129909
    Unique aggregates announced from the RIPE address blocks:     82260
RIPE Region origin ASes present in the Internet Routing Table:    17711
    RIPE Prefixes per ASN:                                         7.33
RIPE Region origin ASes announcing only one prefix:                8212
RIPE Region transit ASes present in the Internet Routing Table:    2886
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2738
Number of RIPE addresses announced to Internet:               659140996
    Equivalent to 39 /8s, 73 /16s and 177 /24s
    Percentage of available RIPE address space announced:          95.8

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:                   59494
    Total LACNIC prefixes after maximum aggregation:              10628
    LACNIC Deaggregation factor:                                   5.60
Prefixes being announced from the LACNIC address blocks:          67699
    Unique aggregates announced from the LACNIC address blocks:   30217
LACNIC Region origin ASes present in the Internet Routing Table:   2277
    LACNIC Prefixes per ASN:                                      29.73
LACNIC Region origin ASes announcing only one prefix:               617
LACNIC Region transit ASes present in the Internet Routing Table:   457
Average LACNIC Region AS path length visible:                       4.6
    Max LACNIC Region AS path length visible:                        23
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1301
Number of LACNIC addresses announced to Internet:             169647488
    Equivalent to 10 /8s, 28 /16s and 157 /24s
    Percentage of available LACNIC address space announced:       101.1

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:                  11080
    Total AfriNIC prefixes after maximum aggregation:              2783
    AfriNIC Deaggregation factor:                                  3.98
Prefixes being announced from the AfriNIC address blocks:         11888
    Unique aggregates announced from the AfriNIC address blocks:   4690
AfriNIC Region origin ASes present in the Internet Routing Table:   738
    AfriNIC Prefixes per ASN:                                     16.11
AfriNIC Region origin ASes announcing only one prefix:              220
AfriNIC Region transit ASes present in the Internet Routing Table:  160
Average AfriNIC Region AS path length visible:                      4.8
    Max AfriNIC Region AS path length visible:                       28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   53
Number of AfriNIC addresses announced to Internet:             58374400
    Equivalent to 3 /8s, 122 /16s and 185 /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     2933      11591         922   Korea Telecom
17974     2808        900          74   PT Telekomunikasi Indonesia
 7545     2336        336         121   TPG Telecom Limited
 4755     1899        413         192   TATA Communications formerly 
 9829     1641       1306          38   National Internet Backbone
 9583     1316        104         538   Sify Limited
 9498     1303        333          91   BHARTI Airtel Ltd.
 7552     1237       1098          14   Viettel Corporation
 9808     1233       6639          15   Guangdong Mobile Communicatio
 4808     1207       2160         363   CNCGROUP IP network China169 

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     2902       2940         142   Cox Communications Inc.
 6389     2895       3688          51   BellSouth.net Inc.
18566     2045        379         178   MegaPath Corporation
 7029     1914       1957         304   Windstream Communications Inc
20115     1782       1767         505   Charter Communications
 4323     1622       1055         407   tw telecom holdings, inc.
30036     1522        316         579   Mediacom Communications Corp
 6983     1466        817         314   ITC^Deltacom
  701     1437      11242         721   MCI Communications Services, 
22561     1307        408         237   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
34984     1751        299         282   TELLCOM ILETISIM HIZMETLERI A
20940     1486        580        1093   Akamai International B.V.
 8402     1317        544          15   OJSC "Vimpelcom"
31148     1042         45          20   Freenet Ltd.
13188     1013         97          51   TOV "Bank-Inform"
 8551      974        371          41   Bezeq International-Ltd
 6849      833        356          27   JSC "Ukrtelecom"
12479      788        798          58   France Telecom Espana SA
 6830      774       2335         429   Liberty Global Operations B.V
 9198      665        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     3228       2316         118   NET Serviços de Comunicação S
10620     2953        478         245   Telmex Colombia S.A.
18881     2086       1036          22   Global Village Telecom
 7303     1774       1182         234   Telecom Argentina S.A.
 6147     1738        374          30   Telefonica del Peru S.A.A.
 8151     1466       2999         433   Uninet S.A. de C.V.
 6503     1124        434          62   Axtel, S.A.B. de C.V.
 7738      999       1882          41   Telemar Norte Leste S.A.
27947      902        130          51   Telconet S.A
26615      889       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      942        280          26   Link Egypt (Link.NET)
 6713      670        744          37   Office National des Postes et
 8452      596        958          13   TE-AS
36992      315        816          27   ETISALAT MISR
24835      307        144           9   Vodafone Data
 3741      249        920         212   Internet Solutions
29571      237         22          17   Cote d'Ivoire Telecom
37054      233         19           6   Data Telecom Service
15706      186         17           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     3228       2316         118   NET Serviços de Comunicação S
10620     2953        478         245   Telmex Colombia S.A.
 4766     2933      11591         922   Korea Telecom
22773     2902       2940         142   Cox Communications Inc.
 6389     2895       3688          51   BellSouth.net Inc.
17974     2808        900          74   PT Telekomunikasi Indonesia
 7545     2336        336         121   TPG Telecom Limited
18881     2086       1036          22   Global Village Telecom
18566     2045        379         178   MegaPath Corporation
 7029     1914       1957         304   Windstream Communications Inc

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      2895        2844      BellSouth.net Inc.
22773      2902        2760      Cox Communications Inc.
17974      2808        2734      PT Telekomunikasi Indonesia
10620      2953        2708      Telmex Colombia S.A.
 7545      2336        2215      TPG Telecom Limited
18881      2086        2064      Global Village Telecom
 4766      2933        2011      Korea Telecom
18566      2045        1867      MegaPath Corporation
 6147      1738        1708      Telefonica del Peru S.A.A.
 4755      1899        1707      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

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

Prefix             Origin AS  Description
100.88.0.0/16         6697     Republican Unitary Telecommun
100.89.0.0/16         6697     Republican Unitary Telecommun
100.90.0.0/16         6697     Republican Unitary Telecommun
100.91.0.0/16         6697     Republican Unitary Telecommun
100.92.0.0/16         6697     Republican Unitary Telecommun
100.93.0.0/16         6697     Republican Unitary Telecommun
100.94.0.0/16         6697     Republican Unitary Telecommun
100.95.0.0/16         6697     Republican Unitary Telecommun
100.96.0.0/14         6697     Republican Unitary Telecommun
100.104.0.0/13        6697     Republican Unitary Telecommun

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

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

Network            Origin AS  Description
5.100.241.0/24       23456     32bit Transition AS
24.231.96.0/24       21548     MTO Telecom Inc.
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<<

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      /12:261     
/13:502     /14:987     /15:1707    /16:13049   /17:7054    /18:11764   
/19:24634   /20:35318   /21:37747   /22:54525   /23:47785   /24:271789  
/25:1079    /26:1028    /27:665     /28:15      /29:19      /30:10      
/31:1       /32:13      

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

  ASN   No of nets  Total ann.   Description
22773     2139          2902      Cox Communications Inc.
18566     2000          2045      MegaPath Corporation
 6389     1674          2895      BellSouth.net Inc.
30036     1372          1522      Mediacom Communications Corp
 6147     1313          1738      Telefonica del Peru S.A.A.
 6983     1167          1466      ITC^Deltacom
 7029     1156          1914      Windstream Communications Inc
11492     1121          1170      CABLE ONE, INC.
34984     1072          1751      TELLCOM ILETISIM HIZMETLERI A
10620     1036          2953      Telmex Colombia S.A.

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

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

   1:1327      2:662       3:3         4:17        5:1119      6:21     
   8:750      12:1860     13:4        14:1112     15:17       16:2      
  17:39       18:21       20:51       23:914      24:1808     27:1782   
  31:1406     32:39       33:2        34:5        36:139      37:1784   
  38:964      39:14       40:221      41:2535     42:271      43:271    
  44:16       45:65       46:2122     47:24       49:733      50:824    
  52:12       54:51       55:6        56:4        57:32       58:1199   
  59:662      60:425      61:1692     62:1236     63:1837     64:4375   
  65:2298     66:4205     67:2027     68:1033     69:3253     70:864    
  71:478      72:2020     74:2575     75:369      76:421      77:1610   
  78:801      79:722      80:1321     81:1205     82:784      83:770    
  84:760      85:1322     86:437      87:1159     88:463      89:1785   
  90:138      91:5702     92:768      93:1801     94:2020     95:1594   
  96:423      97:342      98:1160     99:49      100:66      101:713    
 103:5513    104:213     105:39      106:180     107:622     108:570    
 109:1986    110:1029    111:1352    112:715     113:862     114:773    
 115:1194    116:1108    117:990     118:1561    119:1425    120:423    
 121:969     122:2192    123:1613    124:1427    125:1574    128:582    
 129:348     130:362     131:765     132:429     133:165     134:319    
 135:76      136:302     137:288     138:384     139:204     140:218    
 141:407     142:575     143:433     144:509     145:115     146:626    
 147:550     148:969     149:433     150:474     151:601     152:463    
 153:242     154:341     155:531     156:359     157:328     158:278    
 159:932     160:329     161:589     162:1722    163:350     164:701    
 165:652     166:361     167:671     168:1125    169:122     170:1398   
 171:184     172:65      173:1618    174:702     175:609     176:1482   
 177:3520    178:2072    179:765     180:1782    181:1590    182:1653   
 183:555     184:714     185:2018    186:2978    187:1711    188:2202   
 189:1493    190:7854    191:756     192:7521    193:5504    194:4049   
 195:3556    196:1422    197:688     198:5142    199:5479    200:6445   
 201:2869    202:9171    203:9004    204:4546    205:2646    206:2943   
 207:2914    208:3922    209:3768    210:3302    211:1828    212:2322   
 213:2125    214:859     215:86      216:5621    217:1693    218:613    
 219:407     220:1365    221:686     222:481     223:598    

End of report


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