Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Sep 19 18:11:42 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 20 Sep, 2014

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

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

BGP routing table entries examined:                              511921
    Prefixes after maximum aggregation:                          198473
    Deaggregation factor:                                          2.58
    Unique aggregates announced to Internet:                     251597
Total ASes present in the Internet Routing Table:                 48035
    Prefixes per ASN:                                             10.66
Origin-only ASes present in the Internet Routing Table:           36161
Origin ASes announcing only one prefix:                           16351
Transit ASes present in the Internet Routing Table:                6146
Transit-only ASes present in the Internet Routing Table:            174
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      68
    Max AS path prepend of ASN ( 55644)                              61
Prefixes from unregistered ASNs in the Routing Table:              1700
    Unregistered ASNs in the Routing Table:                         458
Number of 32-bit ASNs allocated by the RIRs:                       7444
Number of 32-bit ASNs visible in the Routing Table:                5728
Prefixes from 32-bit ASNs in the Routing Table:                   20047
Number of bogon 32-bit ASNs visible in the Routing Table:            18
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            355
Number of addresses announced to Internet:                   2709105124
    Equivalent to 161 /8s, 121 /16s and 169 /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:               96.9
Total number of prefixes smaller than registry allocations:      175598

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

Prefixes being announced by APNIC Region ASes:                   125104
    Total APNIC prefixes after maximum aggregation:               36537
    APNIC Deaggregation factor:                                    3.42
Prefixes being announced from the APNIC address blocks:          128815
    Unique aggregates announced from the APNIC address blocks:    52995
APNIC Region origin ASes present in the Internet Routing Table:    4975
    APNIC Prefixes per ASN:                                       25.89
APNIC Region origin ASes announcing only one prefix:               1202
APNIC Region transit ASes present in the Internet Routing Table:    858
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         68
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1094
Number of APNIC addresses announced to Internet:              734629952
    Equivalent to 43 /8s, 201 /16s and 144 /24s
    Percentage of available APNIC address space announced:         85.9

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:                    170497
    Total ARIN prefixes after maximum aggregation:                85240
    ARIN Deaggregation factor:                                     2.00
Prefixes being announced from the ARIN address blocks:           172517
    Unique aggregates announced from the ARIN address blocks:     80687
ARIN Region origin ASes present in the Internet Routing Table:    16358
    ARIN Prefixes per ASN:                                        10.55
ARIN Region origin ASes announcing only one prefix:                6103
ARIN Region transit ASes present in the Internet Routing Table:    1694
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          22
Number of ARIN region 32-bit ASNs visible in the Routing Table:     198
Number of ARIN addresses announced to Internet:              1084451232
    Equivalent to 64 /8s, 163 /16s and 105 /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:                    124980
    Total RIPE prefixes after maximum aggregation:                63152
    RIPE Deaggregation factor:                                     1.98
Prefixes being announced from the RIPE address blocks:           129955
    Unique aggregates announced from the RIPE address blocks:     82506
RIPE Region origin ASes present in the Internet Routing Table:    17713
    RIPE Prefixes per ASN:                                         7.34
RIPE Region origin ASes announcing only one prefix:                8196
RIPE Region transit ASes present in the Internet Routing Table:    2894
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:    3064
Number of RIPE addresses announced to Internet:               658938244
    Equivalent to 39 /8s, 70 /16s and 153 /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:                   59873
    Total LACNIC prefixes after maximum aggregation:              10670
    LACNIC Deaggregation factor:                                   5.61
Prefixes being announced from the LACNIC address blocks:          68111
    Unique aggregates announced from the LACNIC address blocks:   30388
LACNIC Region origin ASes present in the Internet Routing Table:   2316
    LACNIC Prefixes per ASN:                                      29.41
LACNIC Region origin ASes announcing only one prefix:               635
LACNIC Region transit ASes present in the Internet Routing Table:   457
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:  1321
Number of LACNIC addresses announced to Internet:             170980736
    Equivalent to 10 /8s, 48 /16s and 245 /24s
    Percentage of available LACNIC address space announced:       101.9

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-265628 + 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:                  11324
    Total AfriNIC prefixes after maximum aggregation:              2828
    AfriNIC Deaggregation factor:                                  4.00
Prefixes being announced from the AfriNIC address blocks:         12168
    Unique aggregates announced from the AfriNIC address blocks:   4716
AfriNIC Region origin ASes present in the Internet Routing Table:   740
    AfriNIC Prefixes per ASN:                                     16.44
AfriNIC Region origin ASes announcing only one prefix:              215
AfriNIC Region transit ASes present in the Internet Routing Table:  156
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:   51
Number of AfriNIC addresses announced to Internet:             59684608
    Equivalent to 3 /8s, 142 /16s and 183 /24s
    Percentage of available AfriNIC address space announced:       59.3

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     2938      11591         923   Korea Telecom
17974     2815        900          74   PT Telekomunikasi Indonesia
 7545     2350        336         120   TPG Telecom Limited
 4755     1906        413         192   TATA Communications formerly 
 9829     1641       1306          38   National Internet Backbone
 4808     1398       2228         410   CNCGROUP IP network China169 
 9583     1321        105         542   Sify Limited
 9498     1303        333          91   BHARTI Airtel Ltd.
 9808     1259       6639          15   Guangdong Mobile Communicatio
 7552     1228       1098          14   Viettel Corporation

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     2897       3688          51   BellSouth.net Inc.
22773     2893       2940         142   Cox Communications Inc.
18566     2046        379         178   MegaPath Corporation
 7029     1923       1975         326   Windstream Communications Inc
20115     1787       1771         499   Charter Communications
 4323     1630       1051         408   tw telecom holdings, inc.
30036     1525        320         578   Mediacom Communications Corp
 6983     1503        817         311   ITC^Deltacom
  701     1436      11242         719   MCI Communications Services, 
22561     1308        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     1815        299         283   TELLCOM ILETISIM HIZMETLERI A
20940     1473        571        1083   Akamai International B.V.
 8402     1422        544          14   OJSC "Vimpelcom"
31148     1042         45          20   Freenet Ltd.
13188     1023         97          44   TOV "Bank-Inform"
 8551      959        371          41   Bezeq International-Ltd
 6849      838        356          26   JSC "Ukrtelecom"
12479      799        798          59   France Telecom Espana SA
 6830      777       2335         432   Liberty Global Operations B.V
 9198      662        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     3029       2311         107   NET Serviços de Comunicação S
10620     2965        481         251   Telmex Colombia S.A.
18881     2104       1036          22   Global Village Telecom
 6147     1842        374          30   Telefonica del Peru S.A.A.
 7303     1756       1166         233   Telecom Argentina S.A.
 8151     1471       3016         432   Uninet S.A. de C.V.
 6503     1125        434          62   Axtel, S.A.B. de C.V.
 7738      999       1882          41   Telemar Norte Leste S.A.
27947      909        130          51   Telconet S.A
26615      881       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      949        280          26   Link Egypt (Link.NET)
 6713      678        760          38   Office National des Postes et
 8452      559        958          13   TE-AS
36992      341        816          29   ETISALAT MISR
24835      307        144           9   Vodafone Data
 3741      249        920         212   Internet Solutions
29571      242         22          17   Cote d'Ivoire Telecom
37054      232         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     3029       2311         107   NET Serviços de Comunicação S
10620     2965        481         251   Telmex Colombia S.A.
 4766     2938      11591         923   Korea Telecom
 6389     2897       3688          51   BellSouth.net Inc.
22773     2893       2940         142   Cox Communications Inc.
17974     2815        900          74   PT Telekomunikasi Indonesia
 7545     2350        336         120   TPG Telecom Limited
18881     2104       1036          22   Global Village Telecom
18566     2046        379         178   MegaPath Corporation
 7029     1923       1975         326   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      2897        2846      BellSouth.net Inc.
22773      2893        2751      Cox Communications Inc.
17974      2815        2741      PT Telekomunikasi Indonesia
10620      2965        2714      Telmex Colombia S.A.
 7545      2350        2230      TPG Telecom Limited
18881      2104        2082      Global Village Telecom
 4766      2938        2015      Korea Telecom
18566      2046        1868      MegaPath Corporation
 6147      1842        1812      Telefonica del Peru S.A.A.
 4755      1906        1714      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
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<<
37.16.88.0/23        57652     >>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<<

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      /10:31      /11:90      /12:262     
/13:504     /14:998     /15:1714    /16:13030   /17:7089    /18:11782   
/19:24618   /20:35257   /21:37713   /22:54763   /23:48020   /24:273112  
/25:1083    /26:1047    /27:725     /28:14      /29:18      /30:10      
/31:1       /32:12      

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

  ASN   No of nets  Total ann.   Description
22773     2128          2893      Cox Communications Inc.
18566     2001          2046      MegaPath Corporation
 6389     1676          2897      BellSouth.net Inc.
 6147     1404          1842      Telefonica del Peru S.A.A.
30036     1370          1525      Mediacom Communications Corp
 6983     1196          1503      ITC^Deltacom
 7029     1139          1923      Windstream Communications Inc
34984     1136          1815      TELLCOM ILETISIM HIZMETLERI A
11492     1123          1171      CABLE ONE, INC.
 8402     1093          1422      OJSC "Vimpelcom"

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

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

   1:1334      2:663       3:3         4:18        5:1108      6:21     
   8:754      12:1852     13:4        14:1124     15:17       16:2      
  17:41       18:21       20:51       23:922      24:1753     27:1780   
  31:1415     32:39       33:2        34:5        36:146      37:1781   
  38:992      39:19       40:224      41:2621     42:271      43:372    
  44:16       45:73       46:2166     47:25       49:734      50:804    
  52:12       54:52       55:5        56:6        57:32       58:1219   
  59:661      60:428      61:1713     62:1272     63:1830     64:4409   
  65:2295     66:4200     67:2036     68:1049     69:3282     70:864    
  71:472      72:1996     74:2584     75:372      76:425      77:1605   
  78:852      79:730      80:1323     81:1203     82:786      83:777    
  84:739      85:1326     86:445      87:1164     88:467      89:1754   
  90:136      91:5756     92:767      93:1787     94:1993     95:1299   
  96:432      97:342      98:1150     99:48      100:66      101:724    
 103:5627    104:250     105:135     106:184     107:612     108:572    
 109:1977    110:1034    111:1343    112:718     113:887     114:779    
 115:1213    116:1119    117:1002    118:1569    119:1422    120:437    
 121:971     122:2195    123:1613    124:1435    125:1578    128:612    
 129:348     130:369     131:806     132:431     133:165     134:321    
 135:78      136:299     137:291     138:383     139:204     140:219    
 141:414     142:579     143:445     144:505     145:112     146:685    
 147:558     148:968     149:435     150:494     151:705     152:468    
 153:240     154:348     155:537     156:367     157:328     158:277    
 159:936     160:324     161:602     162:1763    163:356     164:697    
 165:660     166:363     167:681     168:1120    169:123     170:1401   
 171:183     172:61      173:1636    174:712     175:609     176:1495   
 177:3534    178:2083    179:796     180:1767    181:1622    182:1654   
 183:540     184:719     185:2082    186:2966    187:1706    188:2197   
 189:1489    190:7914    191:747     192:7558    193:5512    194:4051   
 195:3583    196:1435    197:657     198:5149    199:5484    200:6508   
 201:2910    202:9156    203:8998    204:4564    205:2654    206:2952   
 207:2935    208:3916    209:3751    210:3303    211:1826    212:2333   
 213:2146    214:861     215:86      216:5685    217:1696    218:614    
 219:394     220:1368    221:687     222:486     223:595    

End of report


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