[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Apr 10 18:12:17 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 11 Apr, 2015

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

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

BGP routing table entries examined:                              539454
    Prefixes after maximum aggregation (per Origin AS):          206144
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      262960
Total ASes present in the Internet Routing Table:                 49958
    Prefixes per ASN:                                             10.80
Origin-only ASes present in the Internet Routing Table:           36555
Origin ASes announcing only one prefix:                           16293
Transit ASes present in the Internet Routing Table:                6314
Transit-only ASes present in the Internet Routing Table:            179
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      45
    Max AS path prepend of ASN ( 55944)                              41
Prefixes from unregistered ASNs in the Routing Table:              1353
    Unregistered ASNs in the Routing Table:                         417
Number of 32-bit ASNs allocated by the RIRs:                       9117
Number of 32-bit ASNs visible in the Routing Table:                7089
Prefixes from 32-bit ASNs in the Routing Table:                   25587
Number of bogon 32-bit ASNs visible in the Routing Table:           105
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            390
Number of addresses announced to Internet:                   2740902052
    Equivalent to 163 /8s, 94 /16s and 216 /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:      181799

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

Prefixes being announced by APNIC Region ASes:                   133070
    Total APNIC prefixes after maximum aggregation:               38773
    APNIC Deaggregation factor:                                    3.43
Prefixes being announced from the APNIC address blocks:          138798
    Unique aggregates announced from the APNIC address blocks:    56343
APNIC Region origin ASes present in the Internet Routing Table:    5036
    APNIC Prefixes per ASN:                                       27.56
APNIC Region origin ASes announcing only one prefix:               1209
APNIC Region transit ASes present in the Internet Routing Table:    878
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         45
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1377
Number of APNIC addresses announced to Internet:              747573760
    Equivalent to 44 /8s, 143 /16s and 18 /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:                    178026
    Total ARIN prefixes after maximum aggregation:                87781
    ARIN Deaggregation factor:                                     2.03
Prefixes being announced from the ARIN address blocks:           180419
    Unique aggregates announced from the ARIN address blocks:     84337
ARIN Region origin ASes present in the Internet Routing Table:    16534
    ARIN Prefixes per ASN:                                        10.91
ARIN Region origin ASes announcing only one prefix:                6092
ARIN Region transit ASes present in the Internet Routing Table:    1719
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:     397
Number of ARIN addresses announced to Internet:              1065408288
    Equivalent to 63 /8s, 128 /16s and 215 /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:                    130827
    Total RIPE prefixes after maximum aggregation:                65369
    RIPE Deaggregation factor:                                     2.00
Prefixes being announced from the RIPE address blocks:           137031
    Unique aggregates announced from the RIPE address blocks:     84585
RIPE Region origin ASes present in the Internet Routing Table:    17930
    RIPE Prefixes per ASN:                                         7.64
RIPE Region origin ASes announcing only one prefix:                8169
RIPE Region transit ASes present in the Internet Routing Table:    2980
Average RIPE Region AS path length visible:                         4.9
    Max RIPE Region AS path length visible:                          34
Number of RIPE region 32-bit ASNs visible in the Routing Table:    3590
Number of RIPE addresses announced to Internet:               694648964
    Equivalent to 41 /8s, 103 /16s and 128 /24s
    Percentage of available RIPE address space announced:         101.0

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:                   59121
    Total LACNIC prefixes after maximum aggregation:              11162
    LACNIC Deaggregation factor:                                   5.30
Prefixes being announced from the LACNIC address blocks:          68994
    Unique aggregates announced from the LACNIC address blocks:   32241
LACNIC Region origin ASes present in the Internet Routing Table:   2425
    LACNIC Prefixes per ASN:                                      28.45
LACNIC Region origin ASes announcing only one prefix:               626
LACNIC Region transit ASes present in the Internet Routing Table:   494
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        26
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1618
Number of LACNIC addresses announced to Internet:             168052992
    Equivalent to 10 /8s, 4 /16s and 73 /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:                  12658
    Total AfriNIC prefixes after maximum aggregation:              3015
    AfriNIC Deaggregation factor:                                  4.20
Prefixes being announced from the AfriNIC address blocks:         13822
    Unique aggregates announced from the AfriNIC address blocks:   5100
AfriNIC Region origin ASes present in the Internet Routing Table:   735
    AfriNIC Prefixes per ASN:                                     18.81
AfriNIC Region origin ASes announcing only one prefix:              197
AfriNIC Region transit ASes present in the Internet Routing Table:  161
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:  107
Number of AfriNIC addresses announced to Internet:             64668160
    Equivalent to 3 /8s, 218 /16s and 194 /24s
    Percentage of available AfriNIC address space announced:       64.2

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     2916      11557         912   Korea Telecom
17974     2796        904          78   PT Telekomunikasi Indonesia
 7545     2534        336         127   TPG Telecom Limited
 4755     2002        422         212   TATA Communications formerly 
 4538     1759       4190          71   China Education and Research 
 9829     1670       1326          39   National Internet Backbone
 9808     1553       8717          28   Guangdong Mobile Communicatio
 4808     1454       2259         450   CNCGROUP IP network China169 
 9583     1404        116         573   Sify Limited
 9498     1314        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     3019       2956         143   Cox Communications Inc.
 6389     2881       3688          51   BellSouth.net Inc.
 3356     2549      10683         483   Level 3 Communications, Inc.
18566     2040        379         183   MegaPath Corporation
20115     1854       1833         428   Charter Communications
 6983     1753        866         245   EarthLink, Inc.
 4323     1616       1020         407   tw telecom holdings, inc.
30036     1500        308         517   Mediacom Communications Corp
  701     1411      11277         695   MCI Communications Services, 
22561     1337        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        304         356   TELLCOM ILETISIM HIZMETLERI A
20940     1763        689        1297   Akamai International B.V.
 6849     1212        356          24   JSC "Ukrtelecom"
 8402     1168        544          15   OJSC "Vimpelcom"
31148     1046         45          21   Freenet Ltd.
13188     1030         96          71   TOV "Bank-Inform"
12479      901        801          79   France Telecom Espana SA
 8551      885        373          48   Bezeq International-Ltd
 6830      851       2341         451   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     3180        518         199   Telmex Colombia S.A.
28573     2329       2175         118   NET Serviços de Comunicação S
 7303     1709       1102         243   Telecom Argentina S.A.
 6147     1602        374          30   Telefonica del Peru S.A.A.
 8151     1575       3173         458   Uninet S.A. de C.V.
 6503     1217        421          57   Axtel, S.A.B. de C.V.
 7738      999       1882          41   Telemar Norte Leste S.A.
26615      980       2325          35   Tim Celular S.A.
 3816      921        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     1705        958          13   TE-AS
24863      965        284          27   Link Egypt (Link.NET)
36903      479        241          90   Office National des Postes et
36992      417       1229          32   ETISALAT MISR
24835      300        144           9   Vodafone Data
 3741      249        857         208   Internet Solutions
29571      231         21          12   Cote d'Ivoire Telecom
36947      198        807          13   Telecom Algeria
37492      177        127          67   Orange Tunisie
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     3180        518         199   Telmex Colombia S.A.
22773     3019       2956         143   Cox Communications Inc.
 4766     2916      11557         912   Korea Telecom
 6389     2881       3688          51   BellSouth.net Inc.
17974     2796        904          78   PT Telekomunikasi Indonesia
 3356     2549      10683         483   Level 3 Communications, Inc.
 7545     2534        336         127   TPG Telecom Limited
39891     2472        128           6   SaudiNet, Saudi Telecom Compa
28573     2329       2175         118   NET Serviços de Comunicação S
18566     2040        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      3019        2876      Cox Communications Inc.
 6389      2881        2830      BellSouth.net Inc.
17974      2796        2718      PT Telekomunikasi Indonesia
39891      2472        2466      SaudiNet, Saudi Telecom Compa
 7545      2534        2407      TPG Telecom Limited
28573      2329        2211      NET Serviços de Comunicação S
 3356      2549        2066      Level 3 Communications, Inc.
 4766      2916        2004      Korea Telecom
18566      2040        1857      MegaPath Corporation
 4755      2002        1790      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
36270   UNALLOCATED  8.24.66.0/24          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
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
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      /12:262     
/13:509     /14:999     /15:1719    /16:12947   /17:7202    /18:12225   
/19:25320   /20:35869   /21:38548   /22:58609   /23:51179   /24:290956  
/25:1124    /26:1124    /27:661     /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     2228          3019      Cox Communications Inc.
18566     1995          2040      MegaPath Corporation
 6389     1671          2881      BellSouth.net Inc.
 6983     1400          1753      EarthLink, Inc.
30036     1346          1500      Mediacom Communications Corp
34984     1287          1980      TELLCOM ILETISIM HIZMETLERI A
 6147     1149          1602      Telefonica del Peru S.A.A.
10620     1123          3180      Telmex Colombia S.A.
11492     1103          1168      CABLE ONE, INC.

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

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

   1:1480      2:653       4:93        5:1751      6:23        8:1413   
  12:1827     13:9        14:1304     15:17       16:2        17:44     
  18:21       20:48       23:1201     24:1708     27:1853     31:1521   
  32:38       33:2        34:5        35:3        36:116      37:1896   
  38:1012     39:9        40:246      41:2981     42:262      43:1239   
  44:26       45:377      46:2116     47:38       49:847      50:794    
  52:12       54:72       55:4        56:8        57:36       58:1216   
  59:682      60:467      61:1749     62:1338     63:1908     64:4458   
  65:2257     66:4129     67:2062     68:1074     69:3265     70:961    
  71:441      72:1959     74:2648     75:321      76:406      77:1455   
  78:1204     79:798      80:1315     81:1355     82:820      83:686    
  84:678      85:1374     86:376      87:1072     88:511      89:1808   
  90:151      91:6001     92:825      93:2189     94:1970     95:2083   
  96:430      97:349      98:1065     99:47      100:67      101:819    
 103:7140    104:1497    105:61      106:226     107:929     108:620    
 109:2020    110:1079    111:1489    112:773     113:1067    114:809    
 115:1260    116:1353    117:1002    118:1721    119:1447    120:448    
 121:1036    122:2192    123:1736    124:1498    125:1585    128:566    
 129:380     130:387     131:1174    132:492     133:173     134:419    
 135:109     136:304     137:314     138:596     139:161     140:240    
 141:415     142:669     143:503     144:569     145:108     146:715    
 147:590     148:1111    149:431     150:552     151:604     152:492    
 153:240     154:444     155:745     156:407     157:335     158:319    
 159:979     160:373     161:642     162:1956    163:424     164:664    
 165:687     166:287     167:806     168:1279    169:161     170:1450   
 171:241     172:41      173:1548    174:696     175:664     176:1369   
 177:3773    178:2068    179:893     180:1931    181:1653    182:1729   
 183:618     184:738     185:3243    186:2643    187:1797    188:2017   
 189:1570    190:7628    191:920     192:8242    193:5592    194:4114   
 195:3668    196:1705    197:1093    198:5527    199:5525    200:6522   
 201:3016    202:9464    203:9078    204:4691    205:2834    206:3089   
 207:3010    208:3942    209:3975    210:3516    211:1863    212:2466   
 213:2287    214:855     215:71      216:5600    217:1800    218:675    
 219:453     220:1436    221:788     222:464     223:659    

End of report



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