Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Feb 21 18:11:58 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 22 Feb, 2014

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

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

BGP routing table entries examined:                              483198
    Prefixes after maximum aggregation:                          191729
    Deaggregation factor:                                          2.52
    Unique aggregates announced to Internet:                     239336
Total ASes present in the Internet Routing Table:                 46226
    Prefixes per ASN:                                             10.45
Origin-only ASes present in the Internet Routing Table:           35611
Origin ASes announcing only one prefix:                           16405
Transit ASes present in the Internet Routing Table:                6049
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:              1881
    Unregistered ASNs in the Routing Table:                         488
Number of 32-bit ASNs allocated by the RIRs:                       5975
Number of 32-bit ASNs visible in the Routing Table:                4566
Prefixes from 32-bit ASNs in the Routing Table:                   14720
Number of bogon 32-bit ASNs visible in the Routing Table:             4
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            435
Number of addresses announced to Internet:                   2657187844
    Equivalent to 158 /8s, 97 /16s and 120 /24s
    Percentage of available address space announced:               71.8
    Percentage of allocated address space announced:               71.8
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               95.8
Total number of prefixes smaller than registry allocations:      168859

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

Prefixes being announced by APNIC Region ASes:                   114566
    Total APNIC prefixes after maximum aggregation:               34472
    APNIC Deaggregation factor:                                    3.32
Prefixes being announced from the APNIC address blocks:          117125
    Unique aggregates announced from the APNIC address blocks:    49266
APNIC Region origin ASes present in the Internet Routing Table:    4889
    APNIC Prefixes per ASN:                                       23.96
APNIC Region origin ASes announcing only one prefix:               1225
APNIC Region transit ASes present in the Internet Routing Table:    849
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         37
Number of APNIC region 32-bit ASNs visible in the Routing Table:    843
Number of APNIC addresses announced to Internet:              731163776
    Equivalent to 43 /8s, 148 /16s and 172 /24s
    Percentage of available APNIC address space announced:         85.5

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:                    165378
    Total ARIN prefixes after maximum aggregation:                82750
    ARIN Deaggregation factor:                                     2.00
Prefixes being announced from the ARIN address blocks:           166722
    Unique aggregates announced from the ARIN address blocks:     77354
ARIN Region origin ASes present in the Internet Routing Table:    16154
    ARIN Prefixes per ASN:                                        10.32
ARIN Region origin ASes announcing only one prefix:                6109
ARIN Region transit ASes present in the Internet Routing Table:    1679
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:              1066115712
    Equivalent to 63 /8s, 139 /16s and 162 /24s
    Percentage of available ARIN address space announced:          56.4

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:                    122196
    Total RIPE prefixes after maximum aggregation:                61905
    RIPE Deaggregation factor:                                     1.97
Prefixes being announced from the RIPE address blocks:           126208
    Unique aggregates announced from the RIPE address blocks:     80452
RIPE Region origin ASes present in the Internet Routing Table:    17650
    RIPE Prefixes per ASN:                                         7.15
RIPE Region origin ASes announcing only one prefix:                8321
RIPE Region transit ASes present in the Internet Routing Table:    2874
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:    2631
Number of RIPE addresses announced to Internet:               656485252
    Equivalent to 39 /8s, 33 /16s and 43 /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:                   54382
    Total LACNIC prefixes after maximum aggregation:               9946
    LACNIC Deaggregation factor:                                   5.47
Prefixes being announced from the LACNIC address blocks:          60169
    Unique aggregates announced from the LACNIC address blocks:   27789
LACNIC Region origin ASes present in the Internet Routing Table:   2072
    LACNIC Prefixes per ASN:                                      29.04
LACNIC Region origin ASes announcing only one prefix:               550
LACNIC Region transit ASes present in the Internet Routing Table:   419
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:  1016
Number of LACNIC addresses announced to Internet:             151669120
    Equivalent to 9 /8s, 10 /16s and 73 /24s
    Percentage of available LACNIC address space announced:        90.4

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:                  11838
    Total AfriNIC prefixes after maximum aggregation:              2618
    AfriNIC Deaggregation factor:                                  4.52
Prefixes being announced from the AfriNIC address blocks:         12539
    Unique aggregates announced from the AfriNIC address blocks:   4114
AfriNIC Region origin ASes present in the Internet Routing Table:   696
    AfriNIC Prefixes per ASN:                                     18.02
AfriNIC Region origin ASes announcing only one prefix:              200
AfriNIC Region transit ASes present in the Internet Routing Table:  145
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:   10
Number of AfriNIC addresses announced to Internet:             51426816
    Equivalent to 3 /8s, 16 /16s and 182 /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     2983      11564         891   Korea Telecom
17974     2752        902          88   PT Telekomunikasi Indonesia
 7545     2187        320         117   TPG Telecom Limited
 4755     1837        396         197   TATA Communications formerly 
 9829     1504       1282          41   National Internet Backbone
 9583     1304        102         534   Sify Limited
 7552     1231       1082          13   Viettel Corporation
 9498     1226        309          69   BHARTI Airtel Ltd.
 4808     1169       2116         354   CNCGROUP IP network China169 
24560     1106        376         172   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     3023       3688          53   BellSouth.net Inc.
22773     2323       2938         139   Cox Communications Inc.
 1785     2164        691         130   PaeTec Communications, Inc.
18566     2048        379         178   MegaPath Corporation
20115     1692       1673         576   Charter Communications
 4323     1619       1089         411   tw telecom holdings, inc.
  701     1496      11175         767   MCI Communications Services, 
30036     1377        297         564   Mediacom Communications Corp
 6983     1300        772         581   ITC^Deltacom
 7018     1291      18003         836   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     1814        544          16   OJSC "Vimpelcom"
34984     1403        243         225   TELLCOM ILETISIM HIZMETLERI A
20940     1227        453         922   Akamai International B.V.
13188     1048        100          28   TOV "Bank-Inform"
31148     1017         45          21   Freenet Ltd.
 8551      893        370          41   Bezeq International-Ltd
 6849      860        362          37   JSC "Ukrtelecom"
 6830      773       2331         424   Liberty Global Operations B.V
12479      714        800          50   France Telecom Espana SA
35819      563        634          74   Bayanat Al-Oula For Network S

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     3485       1903          91   NET Serviços de Comunicação S
10620     2749        440         199   Telmex Colombia S.A.
18881     1901        972          21   Global Village Telecom
 7303     1740       1170         219   Telecom Argentina S.A.
 8151     1380       2900         419   Uninet S.A. de C.V.
 6503      932        434          61   Axtel, S.A.B. de C.V.
11830      869        364          15   Instituto Costarricense de El
27947      847        101          88   Telconet S.A
 7738      845       1626          38   Telemar Norte Leste S.A.
 3816      779        314         125   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     1630        240           6   Sudanese Mobile Telephone (ZA
24863      917        380          28   Link Egypt (Link.NET)
 6713      602        685          28   Office National des Postes et
 8452      487        958          13   TE-AS
24835      298        144           9   Vodafone Data
36992      264        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     3485       1903          91   NET Serviços de Comunicação S
 6389     3023       3688          53   BellSouth.net Inc.
 4766     2983      11564         891   Korea Telecom
17974     2752        902          88   PT Telekomunikasi Indonesia
10620     2749        440         199   Telmex Colombia S.A.
22773     2323       2938         139   Cox Communications Inc.
 7545     2187        320         117   TPG Telecom Limited
 1785     2164        691         130   PaeTec Communications, Inc.
18566     2048        379         178   MegaPath Corporation
18881     1901        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      3023        2970      BellSouth.net Inc.
17974      2752        2664      PT Telekomunikasi Indonesia
10620      2749        2550      Telmex Colombia S.A.
22773      2323        2184      Cox Communications Inc.
 4766      2983        2092      Korea Telecom
 7545      2187        2070      TPG Telecom Limited
 1785      2164        2034      PaeTec Communications, Inc.
18881      1901        1880      Global Village Telecom
18566      2048        1870      MegaPath Corporation
 8402      1814        1798      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
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      /12:255     
/13:476     /14:952     /15:1651    /16:12850   /17:6753    /18:11477   
/19:23687   /20:33381   /21:36211   /22:51727   /23:45050   /24:256348  
/25:794     /26:952     /27:438     /28:12      /29:17      /30:7       
/31:1       /32:11      

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

  ASN   No of nets  Total ann.   Description
18566     2003          2048      MegaPath Corporation
 6389     1696          3023      BellSouth.net Inc.
36998     1599          1630      Sudanese Mobile Telephone (ZA
22773     1565          2323      Cox Communications Inc.
 8402     1496          1814      OJSC "Vimpelcom"
30036     1215          1377      Mediacom Communications Corp
11492     1165          1203      CABLE ONE, INC.
 1785     1160          2164      PaeTec Communications, Inc.
 6983     1040          1300      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)
----------------------------------------------

   1:932       2:809       3:3         4:16        5:901       6:19     
   8:656      12:1850     13:3        14:956      15:9        16:3      
  17:24       18:21       20:35       23:683      24:1715     27:1750   
  31:1578     32:44       33:2        34:5        36:118      37:1933   
  38:930      39:4        40:191      41:3082     42:243      44:18     
  46:2120     47:13       49:675      50:921      52:12       54:56     
  55:5        57:26       58:1149     59:593      60:372      61:1525   
  62:1249     63:1966     64:4371     65:2248     66:4192     67:2063   
  68:1024     69:3304     70:853      71:468      72:1999     74:2667   
  75:310      76:311      77:1216     78:1044     79:693      80:1295   
  81:1124     82:665      83:742      84:761      85:1242     86:449    
  87:1064     88:518      89:1740     90:151      91:5716     92:667    
  93:1679     94:2027     95:1475     96:535      97:352      98:1070   
  99:41      100:34      101:781     103:4219    105:535     106:164    
 107:482     108:542     109:2099    110:981     111:1253    112:618    
 113:829     114:790     115:1074    116:1033    117:872     118:1267   
 119:1307    120:341     121:789     122:1914    123:1257    124:1419   
 125:1450    128:642     129:245     130:360     131:659     132:356    
 133:157     134:312     135:74      136:249     137:300     138:348    
 139:157     140:206     141:359     142:553     143:418     144:504    
 145:98      146:599     147:446     148:791     149:345     150:150    
 151:600     152:421     153:204     154:86      155:524     156:325    
 157:367     158:293     159:865     160:356     161:474     162:1154   
 163:218     164:677     165:609     166:278     167:593     168:1048   
 169:124     170:1183    171:196     172:16      173:1590    174:679    
 175:589     176:1451    177:2788    178:1979    179:469     180:1624   
 181:974     182:1434    183:496     184:697     185:1299    186:2826   
 187:1452    188:1988    189:1276    190:7443    191:103     192:7102   
 193:5455    194:4014    195:3368    196:1365    197:1107    198:4918   
 199:5585    200:6064    201:2561    202:8968    203:8872    204:4482   
 205:2663    206:2933    207:2882    208:3965    209:3673    210:3092   
 211:1697    212:2210    213:2030    214:877     215:84      216:5508   
 217:1709    218:567     219:322     220:1289    221:595     222:336    
 223:618    

End of report



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