Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Feb 14 18:13:01 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 15 Feb, 2014

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

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

BGP routing table entries examined:                              482175
    Prefixes after maximum aggregation:                          191598
    Deaggregation factor:                                          2.52
    Unique aggregates announced to Internet:                     238436
Total ASes present in the Internet Routing Table:                 46178
    Prefixes per ASN:                                             10.44
Origin-only ASes present in the Internet Routing Table:           35615
Origin ASes announcing only one prefix:                           16407
Transit ASes present in the Internet Routing Table:                6027
Transit-only ASes present in the Internet Routing Table:            169
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:              1880
    Unregistered ASNs in the Routing Table:                         492
Number of 32-bit ASNs allocated by the RIRs:                       5941
Number of 32-bit ASNs visible in the Routing Table:                4536
Prefixes from 32-bit ASNs in the Routing Table:                   14493
Number of bogon 32-bit ASNs visible in the Routing Table:            12
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            428
Number of addresses announced to Internet:                   2655149028
    Equivalent to 158 /8s, 66 /16s and 91 /24s
    Percentage of available address space announced:               71.7
    Percentage of allocated address space announced:               71.7
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               95.7
Total number of prefixes smaller than registry allocations:      168252

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

Prefixes being announced by APNIC Region ASes:                   114345
    Total APNIC prefixes after maximum aggregation:               34516
    APNIC Deaggregation factor:                                    3.31
Prefixes being announced from the APNIC address blocks:          116873
    Unique aggregates announced from the APNIC address blocks:    49142
APNIC Region origin ASes present in the Internet Routing Table:    4893
    APNIC Prefixes per ASN:                                       23.89
APNIC Region origin ASes announcing only one prefix:               1223
APNIC Region transit ASes present in the Internet Routing Table:    841
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         21
Number of APNIC region 32-bit ASNs visible in the Routing Table:    834
Number of APNIC addresses announced to Internet:              730899008
    Equivalent to 43 /8s, 144 /16s and 162 /24s
    Percentage of available APNIC address space announced:         85.4

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:                    165163
    Total ARIN prefixes after maximum aggregation:                82672
    ARIN Deaggregation factor:                                     2.00
Prefixes being announced from the ARIN address blocks:           166487
    Unique aggregates announced from the ARIN address blocks:     77076
ARIN Region origin ASes present in the Internet Routing Table:    16142
    ARIN Prefixes per ASN:                                        10.31
ARIN Region origin ASes announcing only one prefix:                6101
ARIN Region transit ASes present in the Internet Routing Table:    1681
Average ARIN Region AS path length visible:                         4.0
    Max ARIN Region AS path length visible:                          21
Number of ARIN region 32-bit ASNs visible in the Routing Table:      66
Number of ARIN addresses announced to Internet:              1064975232
    Equivalent to 63 /8s, 122 /16s and 59 /24s
    Percentage of available ARIN address space announced:          56.3

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:                    121470
    Total RIPE prefixes after maximum aggregation:                61741
    RIPE Deaggregation factor:                                     1.97
Prefixes being announced from the RIPE address blocks:           125413
    Unique aggregates announced from the RIPE address blocks:     79964
RIPE Region origin ASes present in the Internet Routing Table:    17642
    RIPE Prefixes per ASN:                                         7.11
RIPE Region origin ASes announcing only one prefix:                8328
RIPE Region transit ASes present in the Internet Routing Table:    2860
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:    2620
Number of RIPE addresses announced to Internet:               656547716
    Equivalent to 39 /8s, 34 /16s and 31 /24s
    Percentage of available RIPE address space announced:          95.4

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
                       40960-45055, 47104-52223, 56320-58367
                       59392-61439, 61952-62463, 196608-200191
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:                   54496
    Total LACNIC prefixes after maximum aggregation:               9994
    LACNIC Deaggregation factor:                                   5.45
Prefixes being announced from the LACNIC address blocks:          60180
    Unique aggregates announced from the LACNIC address blocks:   27714
LACNIC Region origin ASes present in the Internet Routing Table:   2065
    LACNIC Prefixes per ASN:                                      29.14
LACNIC Region origin ASes announcing only one prefix:               550
LACNIC Region transit ASes present in the Internet Routing Table:   411
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        32
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1007
Number of LACNIC addresses announced to Internet:             150817696
    Equivalent to 8 /8s, 253 /16s and 75 /24s
    Percentage of available LACNIC address space announced:        89.9

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:                  12093
    Total AfriNIC prefixes after maximum aggregation:              2637
    AfriNIC Deaggregation factor:                                  4.59
Prefixes being announced from the AfriNIC address blocks:         12794
    Unique aggregates announced from the AfriNIC address blocks:   4184
AfriNIC Region origin ASes present in the Internet Routing Table:   705
    AfriNIC Prefixes per ASN:                                     18.15
AfriNIC Region origin ASes announcing only one prefix:              205
AfriNIC Region transit ASes present in the Internet Routing Table:  148
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:    9
Number of AfriNIC addresses announced to Internet:             51488000
    Equivalent to 3 /8s, 17 /16s and 165 /24s
    Percentage of available AfriNIC address space announced:       51.1

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     2978      11564         892   Korea Telecom
17974     2756        902          88   PT Telekomunikasi Indonesia
 7545     2183        320         116   TPG Telecom Limited
 4755     1822        392         194   TATA Communications formerly 
 9829     1592       1283          39   National Internet Backbone
 9583     1300        102         533   Sify Limited
 7552     1232       1082          13   Viettel Corporation
 4808     1169       2117         355   CNCGROUP IP network China169 
24560     1104        376         172   Bharti Airtel Ltd., Telemedia
 9498     1083        293          66   BHARTI Airtel Ltd.

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     3025       3688          53   BellSouth.net Inc.
22773     2323       2938         139   Cox Communications Inc.
 1785     2163        691         129   PaeTec Communications, Inc.
18566     2048        379         178   MegaPath Corporation
20115     1684       1665         572   Charter Communications
 4323     1620       1090         412   tw telecom holdings, inc.
  701     1492      11189         761   MCI Communications Services, 
30036     1359        291         572   Mediacom Communications Corp
 6983     1298        772         582   ITC^Deltacom
 7018     1294      18003         838   AT&T Services, 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
 8402     1794        544          16   OJSC "Vimpelcom"
34984     1402        243         225   TELLCOM ILETISIM HIZMETLERI A
20940     1229        456         922   Akamai International B.V.
13188     1046        100          28   TOV "Bank-Inform"
31148     1017         45          21   Freenet Ltd.
 8551      895        370          41   Bezeq International-Ltd
 6849      859        362          37   JSC "Ukrtelecom"
 6830      773       2331         424   Liberty Global Operations B.V
12479      710        797          55   France Telecom Espana SA
35228      553        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     3412       1882          80   NET Serviços de Comunicação S
10620     2738        439         199   Telmex Colombia S.A.
18881     1875        972          21   Global Village Telecom
 7303     1744       1165         220   Telecom Argentina S.A.
 8151     1377       2892         422   Uninet S.A. de C.V.
 6503      930        434          61   Axtel, S.A.B. de C.V.
11830      869        364          15   Instituto Costarricense de El
 7738      847       1626          39   Telemar Norte Leste S.A.
27947      842         93          88   Telconet S.A
 3816      770        314         132   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     1810        240           6   Sudanese Mobile Telephone (ZA
24863      917        380          28   Link Egypt (Link.NET)
 6713      602        685          28   Office National des Postes et
 8452      485        958          13   TE-AS
24835      298        144           9   Vodafone Data
36992      263        783          24   ETISALAT MISR
29571      248         22          17   Cote d'Ivoire Telecom
 3741      247        921         208   Internet Solutions
15706      219         32           6   Sudatel (Sudan Telecom Co. Lt
29975      192        668          21   Vodacom

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     3412       1882          80   NET Serviços de Comunicação S
 6389     3025       3688          53   BellSouth.net Inc.
 4766     2978      11564         892   Korea Telecom
17974     2756        902          88   PT Telekomunikasi Indonesia
10620     2738        439         199   Telmex Colombia S.A.
22773     2323       2938         139   Cox Communications Inc.
 7545     2183        320         116   TPG Telecom Limited
 1785     2163        691         129   PaeTec Communications, Inc.
18566     2048        379         178   MegaPath Corporation
18881     1875        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      3025        2972      BellSouth.net Inc.
17974      2756        2668      PT Telekomunikasi Indonesia
10620      2738        2539      Telmex Colombia S.A.
22773      2323        2184      Cox Communications Inc.
 4766      2978        2086      Korea Telecom
 7545      2183        2067      TPG Telecom Limited
 1785      2163        2034      PaeTec Communications, Inc.
18566      2048        1870      MegaPath Corporation
18881      1875        1854      Global Village Telecom
36998      1810        1804      Sudanese Mobile Telephone (ZA

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
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
46473   UNALLOCATED  8.27.122.0/24        12180       Internap Network Ser
46473   UNALLOCATED  8.27.124.0/24        12180       Internap Network Ser

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<<
41.73.15.0/24        37004     >>UNKNOWN<<
41.73.16.0/24        37004     >>UNKNOWN<<
41.73.18.0/24        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      /12:254     
/13:476     /14:953     /15:1660    /16:12874   /17:6826    /18:11521   
/19:23755   /20:33449   /21:36100   /22:51557   /23:44857   /24:255554  
/25:775     /26:933     /27:434     /28:12      /29:17      /30:8       
/31:1       /32:11      

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

  ASN   No of nets  Total ann.   Description
18566     2003          2048      MegaPath Corporation
36998     1771          1810      Sudanese Mobile Telephone (ZA
 6389     1696          3025      BellSouth.net Inc.
22773     1567          2323      Cox Communications Inc.
 8402     1474          1794      OJSC "Vimpelcom"
30036     1199          1359      Mediacom Communications Corp
11492     1162          1200      CABLE ONE, INC.
 1785     1160          2163      PaeTec Communications, Inc.
 6983     1038          1298      ITC^Deltacom
22561      990          1276      CenturyTel Internet Holdings,

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

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

   1:945       2:793       3:3         4:16        5:896       6:22     
   8:656      12:1857     13:3        14:950      15:9        16:3      
  17:24       18:21       20:36       23:679      24:1709     27:1730   
  31:1559     32:44       33:2        34:5        36:122      37:1923   
  38:928      39:4        40:192      41:3293     42:243      44:17     
  46:2131     47:12       49:664      50:918      52:12       54:56     
  55:3        57:26       58:1138     59:582      60:370      61:1512   
  62:1241     63:1963     64:4371     65:2253     66:4190     67:2060   
  68:1027     69:3303     70:858      71:472      72:2010     74:2658   
  75:313      76:309      77:1186     78:1041     79:696      80:1319   
  81:1121     82:672      83:740      84:758      85:1250     86:422    
  87:1032     88:520      89:1658     90:146      91:5727     92:667    
  93:1648     94:1976     95:1444     96:531      97:353      98:1067   
  99:41      100:34      101:772     103:4181    105:536     106:148    
 107:464     108:538     109:2084    110:968     111:1248    112:618    
 113:821     114:781     115:1069    116:1024    117:869     118:1262   
 119:1302    120:331     121:787     122:1934    123:1255    124:1395   
 125:1407    128:638     129:242     130:365     131:658     132:353    
 133:157     134:313     135:74      136:249     137:301     138:350    
 139:156     140:206     141:359     142:552     143:414     144:491    
 145:99      146:598     147:412     148:788     149:342     150:149    
 151:559     152:422     153:205     154:82      155:524     156:325    
 157:367     158:293     159:861     160:357     161:464     162:1139   
 163:215     164:677     165:605     166:290     167:591     168:1047   
 169:125     170:1183    171:196     172:15      173:1599    174:677    
 175:570     176:1438    177:2738    178:1975    179:450     180:1626   
 181:988     182:1376    183:497     184:691     185:1264    186:2798   
 187:1461    188:1972    189:1286    190:7436    191:72      192:7094   
 193:5429    194:4002    195:3364    196:1369    197:1099    198:4902   
 199:5572    200:6080    201:2608    202:8988    203:8902    204:4489   
 205:2657    206:2927    207:2869    208:3962    209:3656    210:3101   
 211:1663    212:2222    213:2027    214:881     215:84      216:5504   
 217:1700    218:570     219:323     220:1291    221:593     222:336    
 223:589    

End of report



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