Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Mar 21 18:13:35 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 Mar, 2014

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

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

BGP routing table entries examined:                              488304
    Prefixes after maximum aggregation:                          192289
    Deaggregation factor:                                          2.54
    Unique aggregates announced to Internet:                     240828
Total ASes present in the Internet Routing Table:                 46406
    Prefixes per ASN:                                             10.52
Origin-only ASes present in the Internet Routing Table:           35677
Origin ASes announcing only one prefix:                           16383
Transit ASes present in the Internet Routing Table:                6041
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:              1866
    Unregistered ASNs in the Routing Table:                         475
Number of 32-bit ASNs allocated by the RIRs:                       6186
Number of 32-bit ASNs visible in the Routing Table:                4688
Prefixes from 32-bit ASNs in the Routing Table:                   15130
Number of bogon 32-bit ASNs visible in the Routing Table:            32
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            442
Number of addresses announced to Internet:                   2659727108
    Equivalent to 158 /8s, 136 /16s and 55 /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:               95.9
Total number of prefixes smaller than registry allocations:      170366

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

Prefixes being announced by APNIC Region ASes:                   115939
    Total APNIC prefixes after maximum aggregation:               34611
    APNIC Deaggregation factor:                                    3.35
Prefixes being announced from the APNIC address blocks:          118564
    Unique aggregates announced from the APNIC address blocks:    49644
APNIC Region origin ASes present in the Internet Routing Table:    4895
    APNIC Prefixes per ASN:                                       24.22
APNIC Region origin ASes announcing only one prefix:               1225
APNIC Region transit ASes present in the Internet Routing Table:    858
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         39
Number of APNIC region 32-bit ASNs visible in the Routing Table:    869
Number of APNIC addresses announced to Internet:              729638528
    Equivalent to 43 /8s, 125 /16s and 102 /24s
    Percentage of available APNIC address space announced:         85.3

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:                    166691
    Total ARIN prefixes after maximum aggregation:                82932
    ARIN Deaggregation factor:                                     2.01
Prefixes being announced from the ARIN address blocks:           168175
    Unique aggregates announced from the ARIN address blocks:     78137
ARIN Region origin ASes present in the Internet Routing Table:    16196
    ARIN Prefixes per ASN:                                        10.38
ARIN Region origin ASes announcing only one prefix:                6119
ARIN Region transit ASes present in the Internet Routing Table:    1660
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:      76
Number of ARIN addresses announced to Internet:              1067388032
    Equivalent to 63 /8s, 159 /16s and 12 /24s
    Percentage of available ARIN address space announced:          56.5

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:                    122945
    Total RIPE prefixes after maximum aggregation:                62062
    RIPE Deaggregation factor:                                     1.98
Prefixes being announced from the RIPE address blocks:           126909
    Unique aggregates announced from the RIPE address blocks:     80365
RIPE Region origin ASes present in the Internet Routing Table:    17647
    RIPE Prefixes per ASN:                                         7.19
RIPE Region origin ASes announcing only one prefix:                8290
RIPE Region transit ASes present in the Internet Routing Table:    2862
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:    2672
Number of RIPE addresses announced to Internet:               657136260
    Equivalent to 39 /8s, 43 /16s and 26 /24s
    Percentage of available RIPE address space announced:          95.5

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:                   55145
    Total LACNIC prefixes after maximum aggregation:               9992
    LACNIC Deaggregation factor:                                   5.52
Prefixes being announced from the LACNIC address blocks:          61211
    Unique aggregates announced from the LACNIC address blocks:   28016
LACNIC Region origin ASes present in the Internet Routing Table:   2078
    LACNIC Prefixes per ASN:                                      29.46
LACNIC Region origin ASes announcing only one prefix:               544
LACNIC Region transit ASes present in the Internet Routing Table:   427
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:  1057
Number of LACNIC addresses announced to Internet:             153329024
    Equivalent to 9 /8s, 35 /16s and 157 /24s
    Percentage of available LACNIC address space announced:        91.4

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:                  12339
    Total AfriNIC prefixes after maximum aggregation:              2655
    AfriNIC Deaggregation factor:                                  4.65
Prefixes being announced from the AfriNIC address blocks:         13003
    Unique aggregates announced from the AfriNIC address blocks:   4293
AfriNIC Region origin ASes present in the Internet Routing Table:   708
    AfriNIC Prefixes per ASN:                                     18.37
AfriNIC Region origin ASes announcing only one prefix:              205
AfriNIC Region transit ASes present in the Internet Routing Table:  153
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:   14
Number of AfriNIC addresses announced to Internet:             51886592
    Equivalent to 3 /8s, 23 /16s and 186 /24s
    Percentage of available AfriNIC address space announced:       51.5

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     2980      11582         897   Korea Telecom
17974     2765        903          78   PT Telekomunikasi Indonesia
 7545     2225        320         116   TPG Telecom Limited
 4755     1840        396         197   TATA Communications formerly 
 9829     1604       1288          35   National Internet Backbone
 4808     1350       2225         386   CNCGROUP IP network China169 
 9583     1307        102         533   Sify Limited
 9498     1246        312          78   BHARTI Airtel Ltd.
 7552     1228       1082          13   Viettel Corporation
24560     1124        384         177   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     3013       3688          53   BellSouth.net Inc.
22773     2417       2938         140   Cox Communications Inc.
 1785     2185        694         128   PaeTec Communications, Inc.
18566     2048        379         178   MegaPath Corporation
20115     1694       1674         575   Charter Communications
 4323     1624       1089         412   tw telecom holdings, inc.
  701     1492      11174         763   MCI Communications Services, 
30036     1391        301         556   Mediacom Communications Corp
 6983     1328        800         308   ITC^Deltacom
22561     1304        402         232   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
 8402     1751        544          16   OJSC "Vimpelcom"
34984     1519        264         248   TELLCOM ILETISIM HIZMETLERI A
20940     1300        508         970   Akamai International B.V.
13188     1049        100          28   TOV "Bank-Inform"
31148     1017         45          21   Freenet Ltd.
 8551      951        370          41   Bezeq International-Ltd
 6849      861        361          34   JSC "Ukrtelecom"
 6830      762       2329         425   Liberty Global Operations B.V
12479      714        797          56   France Telecom Espana SA
35228      555        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     3624       1943          94   NET Serviços de Comunicação S
10620     2789        446         199   Telmex Colombia S.A.
18881     1917        972          21   Global Village Telecom
 7303     1746       1172         218   Telecom Argentina S.A.
 8151     1394       2916         410   Uninet S.A. de C.V.
 6503     1157        434          61   Axtel, S.A.B. de C.V.
 7738      912       1754          40   Telemar Norte Leste S.A.
11830      866        364          15   Instituto Costarricense de El
27947      856        113          48   Telconet S.A
 6147      787        373          27   Telefonica del Peru S.A.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
36998     1637        240           6   Sudanese Mobile Telephone (ZA
24863      931        280          26   Link Egypt (Link.NET)
 6713      603        701          28   Office National des Postes et
 8452      520        958          13   TE-AS
24835      298        144           9   Vodafone Data
36992      282        783          24   ETISALAT MISR
 3741      248        921         209   Internet Solutions
15706      219         32           6   Sudatel (Sudan Telecom Co. Lt
37054      215         19           6   Data Telecom Service
29571      211         22          18   Cote d'Ivoire Telecom

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     3624       1943          94   NET Serviços de Comunicação S
 6389     3013       3688          53   BellSouth.net Inc.
 4766     2980      11582         897   Korea Telecom
10620     2789        446         199   Telmex Colombia S.A.
17974     2765        903          78   PT Telekomunikasi Indonesia
22773     2417       2938         140   Cox Communications Inc.
 7545     2225        320         116   TPG Telecom Limited
 1785     2185        694         128   PaeTec Communications, Inc.
18566     2048        379         178   MegaPath Corporation
18881     1917        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      3013        2960      BellSouth.net Inc.
17974      2765        2687      PT Telekomunikasi Indonesia
10620      2789        2590      Telmex Colombia S.A.
22773      2417        2277      Cox Communications Inc.
 7545      2225        2109      TPG Telecom Limited
 4766      2980        2083      Korea Telecom
 1785      2185        2057      PaeTec Communications, Inc.
18881      1917        1896      Global Village Telecom
18566      2048        1870      MegaPath Corporation
 8402      1751        1735      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
65456   PRIVATE      5.109.32.0/19        23456       32bit Transition AS
65456   PRIVATE      5.109.96.0/19        23456       32bit Transition AS
65456   PRIVATE      5.245.224.0/19       23456       32bit Transition AS
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

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<<
41.73.14.0/24        37004     >>UNKNOWN<<
41.73.15.0/24        37004     >>UNKNOWN<<
41.73.16.0/24        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     
/13:477     /14:951     /15:1653    /16:12881   /17:6771    /18:11528   
/19:23967   /20:33847   /21:36515   /22:52055   /23:45570   /24:259380  
/25:816     /26:1000    /27:414     /28:12      /29:18      /30:8       
/31:1       /32:38      

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

  ASN   No of nets  Total ann.   Description
18566     2003          2048      MegaPath Corporation
 6389     1696          3013      BellSouth.net Inc.
22773     1654          2417      Cox Communications Inc.
36998     1599          1637      Sudanese Mobile Telephone (ZA
 8402     1430          1751      OJSC "Vimpelcom"
30036     1229          1391      Mediacom Communications Corp
11492     1175          1222      CABLE ONE, INC.
 1785     1169          2185      PaeTec Communications, Inc.
 6983     1044          1328      ITC^Deltacom
34984     1004          1519      TELLCOM ILETISIM HIZMETLERI A

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

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

   1:994       2:727       3:3         4:16        5:908       6:19     
   8:715      12:1863     13:4        14:977      15:13       16:3      
  17:31       18:21       20:35       23:745      24:1725     27:1763   
  31:1513     32:44       33:2        34:5        36:122      37:1828   
  38:942      39:4        40:195      41:3133     42:245      44:18     
  46:2144     47:18       49:671      50:915      52:12       54:47     
  55:7        57:26       58:1161     59:596      60:381      61:1525   
  62:1246     63:1985     64:4357     65:2259     66:4226     67:2044   
  68:1033     69:3288     70:850      71:461      72:1971     74:2662   
  75:314      76:406      77:1219     78:1041     79:699      80:1322   
  81:1134     82:681      83:755      84:754      85:1308     86:436    
  87:1198     88:521      89:1759     90:151      91:5801     92:668    
  93:1710     94:2055     95:1507     96:541      97:350      98:1077   
  99:46      100:50      101:819     103:4460    105:553     106:166    
 107:575     108:554     109:2016    110:979     111:1300    112:655    
 113:832     114:873     115:1107    116:1040    117:881     118:1358   
 119:1328    120:374     121:793     122:1920    123:1279    124:1453   
 125:1480    128:653     129:245     130:343     131:656     132:358    
 133:159     134:318     135:74      136:248     137:319     138:349    
 139:159     140:212     141:358     142:560     143:428     144:508    
 145:103     146:599     147:430     148:798     149:344     150:156    
 151:588     152:424     153:206     154:234     155:467     156:336    
 157:344     158:219     159:876     160:350     161:478     162:1258   
 163:222     164:680     165:619     166:280     167:602     168:1027   
 169:124     170:1287    171:192     172:23      173:1599    174:681    
 175:605     176:1465    177:2829    178:1945    179:606     180:1666   
 181:1022    182:1518    183:508     184:719     185:1421    186:2846   
 187:1479    188:1871    189:1430    190:7462    191:121     192:7167   
 193:5457    194:4015    195:3386    196:1367    197:1110    198:4983   
 199:5608    200:6051    201:2660    202:8969    203:8912    204:4668   
 205:2691    206:2933    207:2949    208:3953    209:3732    210:3084   
 211:1694    212:2225    213:2053    214:887     215:84      216:5532   
 217:1692    218:562     219:317     220:1284    221:594     222:350    
 223:609    

End of report



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