[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Apr 3 18:14:57 UTC 2015


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,
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 04 Apr, 2015

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

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

BGP routing table entries examined:                              539115
    Prefixes after maximum aggregation (per Origin AS):          205855
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      262872
Total ASes present in the Internet Routing Table:                 49858
    Prefixes per ASN:                                             10.81
Origin-only ASes present in the Internet Routing Table:           36536
Origin ASes announcing only one prefix:                           16266
Transit ASes present in the Internet Routing Table:                6290
Transit-only ASes present in the Internet Routing Table:            173
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      59
    Max AS path prepend of ASN ( 55644)                              56
Prefixes from unregistered ASNs in the Routing Table:              1130
    Unregistered ASNs in the Routing Table:                         410
Number of 32-bit ASNs allocated by the RIRs:                       9061
Number of 32-bit ASNs visible in the Routing Table:                7032
Prefixes from 32-bit ASNs in the Routing Table:                   25439
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:            372
Number of addresses announced to Internet:                   2740392868
    Equivalent to 163 /8s, 87 /16s and 19 /24s
    Percentage of available address space announced:               74.0
    Percentage of allocated address space announced:               74.0
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               97.3
Total number of prefixes smaller than registry allocations:      181677

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

Prefixes being announced by APNIC Region ASes:                   133140
    Total APNIC prefixes after maximum aggregation:               38684
    APNIC Deaggregation factor:                                    3.44
Prefixes being announced from the APNIC address blocks:          138839
    Unique aggregates announced from the APNIC address blocks:    56616
APNIC Region origin ASes present in the Internet Routing Table:    5036
    APNIC Prefixes per ASN:                                       27.57
APNIC Region origin ASes announcing only one prefix:               1214
APNIC Region transit ASes present in the Internet Routing Table:    872
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         59
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1365
Number of APNIC addresses announced to Internet:              747782656
    Equivalent to 44 /8s, 146 /16s and 66 /24s
    Percentage of available APNIC address space announced:         87.4

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-64098, 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:                    177915
    Total ARIN prefixes after maximum aggregation:                87703
    ARIN Deaggregation factor:                                     2.03
Prefixes being announced from the ARIN address blocks:           180188
    Unique aggregates announced from the ARIN address blocks:     84227
ARIN Region origin ASes present in the Internet Routing Table:    16510
    ARIN Prefixes per ASN:                                        10.91
ARIN Region origin ASes announcing only one prefix:                6072
ARIN Region transit ASes present in the Internet Routing Table:    1716
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:     386
Number of ARIN addresses announced to Internet:              1064986400
    Equivalent to 63 /8s, 122 /16s and 103 /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:                    130559
    Total RIPE prefixes after maximum aggregation:                65255
    RIPE Deaggregation factor:                                     2.00
Prefixes being announced from the RIPE address blocks:           136997
    Unique aggregates announced from the RIPE address blocks:     84491
RIPE Region origin ASes present in the Internet Routing Table:    17929
    RIPE Prefixes per ASN:                                         7.64
RIPE Region origin ASes announcing only one prefix:                8164
RIPE Region transit ASes present in the Internet Routing Table:    2969
Average RIPE Region AS path length visible:                         4.9
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    3568
Number of RIPE addresses announced to Internet:               694387588
    Equivalent to 41 /8s, 99 /16s and 131 /24s
    Percentage of available RIPE address space announced:         100.9

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:                   59226
    Total LACNIC prefixes after maximum aggregation:              11187
    LACNIC Deaggregation factor:                                   5.29
Prefixes being announced from the LACNIC address blocks:          68995
    Unique aggregates announced from the LACNIC address blocks:   32144
LACNIC Region origin ASes present in the Internet Routing Table:   2423
    LACNIC Prefixes per ASN:                                      28.48
LACNIC Region origin ASes announcing only one prefix:               623
LACNIC Region transit ASes present in the Internet Routing Table:   495
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        22
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1609
Number of LACNIC addresses announced to Internet:             168041728
    Equivalent to 10 /8s, 4 /16s and 29 /24s
    Percentage of available LACNIC address space announced:       100.2

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:                  12673
    Total AfriNIC prefixes after maximum aggregation:              2982
    AfriNIC Deaggregation factor:                                  4.25
Prefixes being announced from the AfriNIC address blocks:         13724
    Unique aggregates announced from the AfriNIC address blocks:   5057
AfriNIC Region origin ASes present in the Internet Routing Table:   725
    AfriNIC Prefixes per ASN:                                     18.93
AfriNIC Region origin ASes announcing only one prefix:              193
AfriNIC Region transit ASes present in the Internet Routing Table:  159
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  104
Number of AfriNIC addresses announced to Internet:             64489472
    Equivalent to 3 /8s, 216 /16s and 8 /24s
    Percentage of available AfriNIC address space announced:       64.1

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     2877      11556         919   Korea Telecom
17974     2794        904          78   PT Telekomunikasi Indonesia
 7545     2546        336         128   TPG Telecom Limited
 4755     2003        422         212   TATA Communications formerly 
 4538     1760       4190          71   China Education and Research 
 9829     1678       1324          47   National Internet Backbone
 9808     1555       8717          28   Guangdong Mobile Communicatio
 4808     1452       2259         447   CNCGROUP IP network China169 
 9583     1405        116         574   Sify Limited
 9498     1313        334          94   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
22773     3018       2956         142   Cox Communications Inc.
 6389     2880       3688          51   BellSouth.net Inc.
 3356     2541      10683         475   Level 3 Communications, Inc.
18566     2041        379         183   MegaPath Corporation
20115     1851       1832         431   Charter Communications
 6983     1752        866         245   EarthLink, Inc.
 4323     1618       1020         407   tw telecom holdings, inc.
30036     1508        308         527   Mediacom Communications Corp
  701     1391      11270         677   MCI Communications Services, 
22561     1338        412         242   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
39891     2472        128           6   SaudiNet, Saudi Telecom Compa
34984     1980        303         357   TELLCOM ILETISIM HIZMETLERI A
20940     1689        648        1248   Akamai International B.V.
 8402     1214        544          15   OJSC "Vimpelcom"
 6849     1212        356          24   JSC "Ukrtelecom"
31148     1046         45          21   Freenet Ltd.
13188     1024         96          72   TOV "Bank-Inform"
12479      898        801          79   France Telecom Espana SA
 8551      885        373          48   Bezeq International-Ltd
 6830      852       2341         452   Liberty Global Operations B.V

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
10620     3156        514         222   Telmex Colombia S.A.
28573     2358       2173         118   NET Serviços de Comunicação S
 7303     1704       1102         241   Telecom Argentina S.A.
 6147     1596        374          30   Telefonica del Peru S.A.A.
 8151     1559       3159         449   Uninet S.A. de C.V.
 6503     1209        421          57   Axtel, S.A.B. de C.V.
 7738      999       1882          41   Telemar Norte Leste S.A.
26615      963       2325          35   Tim Celular S.A.
 3816      922        418         154   COLOMBIA TELECOMUNICACIONES S
18881      867       1036          22   Global Village Telecom

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
 8452     1694        958          13   TE-AS
24863      962        284          27   Link Egypt (Link.NET)
36903      479        241          90   Office National des Postes et
36992      417       1229          32   ETISALAT MISR
37492      318        159          71   Orange Tunisie
24835      300        144           9   Vodafone Data
 3741      249        857         208   Internet Solutions
29571      232         21          13   Cote d'Ivoire Telecom
36947      192        807          13   Telecom Algeria
15706      172         32           6   Sudatel (Sudan Telecom Co. Lt

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
10620     3156        514         222   Telmex Colombia S.A.
22773     3018       2956         142   Cox Communications Inc.
 6389     2880       3688          51   BellSouth.net Inc.
 4766     2877      11556         919   Korea Telecom
17974     2794        904          78   PT Telekomunikasi Indonesia
 7545     2546        336         128   TPG Telecom Limited
 3356     2541      10683         475   Level 3 Communications, Inc.
39891     2472        128           6   SaudiNet, Saudi Telecom Compa
28573     2358       2173         118   NET Serviços de Comunicação S
18566     2041        379         183   MegaPath Corporation

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

Global Per AS Maximum Aggr summary
----------------------------------

  ASN   No of nets  Net Savings Description
22773      3018        2876      Cox Communications Inc.
 6389      2880        2829      BellSouth.net Inc.
17974      2794        2716      PT Telekomunikasi Indonesia
39891      2472        2466      SaudiNet, Saudi Telecom Compa
 7545      2546        2418      TPG Telecom Limited
28573      2358        2240      NET Serviços de Comunicação S
 3356      2541        2066      Level 3 Communications, Inc.
 4766      2877        1958      Korea Telecom
18566      2041        1858      MegaPath Corporation
 4755      2003        1791      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         3356       Level 3 Communicatio
46467   UNALLOCATED  8.19.192.0/24        46887       Lightower Fiber Netw
18985   UNALLOCATED  8.21.68.0/22          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
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
32805   UNALLOCATED  12.1.225.0/24         7018       AT&T Services, Inc.

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
23.226.112.0/20      62788     >>UNKNOWN<<
27.100.7.0/24        56096     >>UNKNOWN<<
31.217.248.0/21      44902     COVAGE NETWORKS SASU
41.73.1.0/24         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<<

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      /10:34      /11:93      /12:264     
/13:510     /14:1001    /15:1717    /16:12950   /17:7205    /18:12232   
/19:25319   /20:35828   /21:38593   /22:58523   /23:51163   /24:290671  
/25:1111    /26:1167    /27:660     /28:14      /29:11      /30:8       
/31:0       /32:13      

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

  ASN   No of nets  Total ann.   Description
39891     2432          2472      SaudiNet, Saudi Telecom Compa
22773     2230          3018      Cox Communications Inc.
18566     1996          2041      MegaPath Corporation
 6389     1670          2880      BellSouth.net Inc.
 6983     1399          1752      EarthLink, Inc.
30036     1355          1508      Mediacom Communications Corp
34984     1285          1980      TELLCOM ILETISIM HIZMETLERI A
 6147     1144          1596      Telefonica del Peru S.A.A.
10620     1116          3156      Telmex Colombia S.A.
11492     1109          1172      CABLE ONE, INC.

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

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

   1:1544      2:666       4:93        5:1751      6:21        8:1415   
  12:1819     13:9        14:1315     15:17       16:2        17:44     
  18:21       20:49       23:1192     24:1695     27:1854     31:1513   
  32:39       33:2        34:5        35:3        36:117      37:1893   
  38:1012     39:11       40:246      41:2929     42:265      43:1238   
  44:26       45:342      46:2122     47:37       49:883      50:796    
  52:12       54:72       55:4        56:8        57:37       58:1222   
  59:681      60:468      61:1759     62:1336     63:1908     64:4448   
  65:2257     66:4120     67:2054     68:1077     69:3270     70:959    
  71:441      72:1959     74:2647     75:322      76:407      77:1489   
  78:1223     79:798      80:1317     81:1351     82:819      83:685    
  84:679      85:1369     86:381      87:1074     88:511      89:1807   
  90:153      91:5984     92:824      93:2174     94:1964     95:2068   
  96:428      97:348      98:1067     99:47      100:68      101:815    
 103:7079    104:1481    105:61      106:224     107:913     108:616    
 109:2019    110:1078    111:1485    112:770     113:1051    114:834    
 115:1249    116:1366    117:1024    118:1707    119:1436    120:450    
 121:1037    122:2183    123:1728    124:1505    125:1578    128:567    
 129:377     130:390     131:1183    132:481     133:172     134:415    
 135:109     136:300     137:313     138:576     139:164     140:239    
 141:421     142:669     143:487     144:569     145:108     146:712    
 147:580     148:1104    149:464     150:562     151:605     152:491    
 153:240     154:339     155:738     156:406     157:334     158:319    
 159:969     160:373     161:639     162:1959    163:422     164:663    
 165:686     166:289     167:803     168:1277    169:161     170:1466   
 171:240     172:41      173:1548    174:701     175:662     176:1406   
 177:3797    178:2062    179:879     180:1926    181:1599    182:1748   
 183:620     184:744     185:3193    186:2622    187:1783    188:2018   
 189:1584    190:7696    191:909     192:8204    193:5591    194:4107   
 195:3661    196:1705    197:1076    198:5512    199:5528    200:6575   
 201:3045    202:9447    203:9108    204:4694    205:2830    206:3083   
 207:3003    208:3943    209:3966    210:3525    211:1856    212:2451   
 213:2279    214:854     215:70      216:5581    217:1798    218:676    
 219:453     220:1436    221:790     222:464     223:670    

End of report


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