Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri May 20 18:10:43 UTC 2016


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,
SAFNOG, PaNOG, SdNOG, BJNOG, CaribNOG and the RIPE Routing WG.

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 21 May, 2016

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

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

BGP routing table entries examined:                              593812
    Prefixes after maximum aggregation (per Origin AS):          217438
    Deaggregation factor:                                          2.73
    Unique aggregates announced (without unneeded subnets):      291167
Total ASes present in the Internet Routing Table:                 53819
    Prefixes per ASN:                                             11.03
Origin-only ASes present in the Internet Routing Table:           36588
Origin ASes announcing only one prefix:                           15681
Transit ASes present in the Internet Routing Table:                6448
Transit-only ASes present in the Internet Routing Table:            168
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      39
    Max AS path prepend of ASN ( 55644)                              31
Prefixes from unregistered ASNs in the Routing Table:               960
    Unregistered ASNs in the Routing Table:                         360
Number of 32-bit ASNs allocated by the RIRs:                      13944
Number of 32-bit ASNs visible in the Routing Table:               10783
Prefixes from 32-bit ASNs in the Routing Table:                   42394
Number of bogon 32-bit ASNs visible in the Routing Table:            28
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            383
Number of addresses announced to Internet:                   2810367044
    Equivalent to 167 /8s, 130 /16s and 204 /24s
    Percentage of available address space announced:               75.9
    Percentage of allocated address space announced:               75.9
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               98.1
Total number of prefixes smaller than registry allocations:      193857

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

Prefixes being announced by APNIC Region ASes:                   151956
    Total APNIC prefixes after maximum aggregation:               42399
    APNIC Deaggregation factor:                                    3.58
Prefixes being announced from the APNIC address blocks:          163075
    Unique aggregates announced from the APNIC address blocks:    66721
APNIC Region origin ASes present in the Internet Routing Table:    5180
    APNIC Prefixes per ASN:                                       31.48
APNIC Region origin ASes announcing only one prefix:               1179
APNIC Region transit ASes present in the Internet Routing Table:    916
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         39
Number of APNIC region 32-bit ASNs visible in the Routing Table:   2087
Number of APNIC addresses announced to Internet:              754229060
    Equivalent to 44 /8s, 244 /16s and 159 /24s
    Percentage of available APNIC address space announced:         88.1

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:                    180969
    Total ARIN prefixes after maximum aggregation:                89100
    ARIN Deaggregation factor:                                     2.03
Prefixes being announced from the ARIN address blocks:           186372
    Unique aggregates announced from the ARIN address blocks:     88141
ARIN Region origin ASes present in the Internet Routing Table:    16361
    ARIN Prefixes per ASN:                                        11.39
ARIN Region origin ASes announcing only one prefix:                5842
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:                          23
Number of ARIN region 32-bit ASNs visible in the Routing Table:    1221
Number of ARIN addresses announced to Internet:              1101448512
    Equivalent to 65 /8s, 166 /16s and 197 /24s
    Percentage of available ARIN address space announced:          58.3

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, 64198-64296, 393216-397212
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:                    142433
    Total RIPE prefixes after maximum aggregation:                70409
    RIPE Deaggregation factor:                                     2.02
Prefixes being announced from the RIPE address blocks:           151690
    Unique aggregates announced from the RIPE address blocks:     94010
RIPE Region origin ASes present in the Internet Routing Table:    18083
    RIPE Prefixes per ASN:                                         8.39
RIPE Region origin ASes announcing only one prefix:                7903
RIPE Region transit ASes present in the Internet Routing Table:    3012
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          36
Number of RIPE region 32-bit ASNs visible in the Routing Table:    4773
Number of RIPE addresses announced to Internet:               704402560
    Equivalent to 41 /8s, 252 /16s and 84 /24s
    Percentage of available RIPE address space announced:         102.4

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
                       40960-45055, 47104-52223, 56320-58367
                       59392-61439, 61952-62463, 196608-204287
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:                   61841
    Total LACNIC prefixes after maximum aggregation:              12235
    LACNIC Deaggregation factor:                                   5.05
Prefixes being announced from the LACNIC address blocks:          76253
    Unique aggregates announced from the LACNIC address blocks:   36154
LACNIC Region origin ASes present in the Internet Routing Table:   2482
    LACNIC Prefixes per ASN:                                      30.72
LACNIC Region origin ASes announcing only one prefix:               577
LACNIC Region transit ASes present in the Internet Routing Table:   570
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        23
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  2493
Number of LACNIC addresses announced to Internet:             171197760
    Equivalent to 10 /8s, 52 /16s and 69 /24s
    Percentage of available LACNIC address space announced:       102.0

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:                  14112
    Total AfriNIC prefixes after maximum aggregation:              3258
    AfriNIC Deaggregation factor:                                  4.33
Prefixes being announced from the AfriNIC address blocks:         16039
    Unique aggregates announced from the AfriNIC address blocks:   5798
AfriNIC Region origin ASes present in the Internet Routing Table:   737
    AfriNIC Prefixes per ASN:                                     21.76
AfriNIC Region origin ASes announcing only one prefix:              180
AfriNIC Region transit ASes present in the Internet Routing Table:  169
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  209
Number of AfriNIC addresses announced to Internet:             78707968
    Equivalent to 4 /8s, 176 /16s and 253 /24s
    Percentage of available AfriNIC address space announced:       78.2

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
 4538     5556       4192          76   China Education and Research 
 7545     3334        356         220   TPG Telecom Limited
 4766     3170      11144        1123   Korea Telecom
17974     2946        914          96   PT Telekomunikasi Indonesia
 9829     2459       1467         464   National Internet Backbone
 4755     2096        432         243   TATA Communications formerly 
 9808     1940       8717          30   Guangdong Mobile Communicatio
 4808     1659       2299         549   CNCGROUP IP network China169 
 9583     1513        122         558   Sify Limited
38197     1497         93         215   Sun Network (Hong Kong) Limit

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     3242       2947         138   Cox Communications Inc.
 6389     2299       3671          41   BellSouth.net Inc.
18566     2195        394         275   MegaPath Corporation
20115     1921       1937         404   Charter Communications
30036     1696        337         401   Mediacom Communications Corp
 6983     1689        849         232   EarthLink, Inc.
  209     1669       4968         770   Qwest Communications Company,
 4323     1517        985         376   tw telecom holdings, inc.
  701     1296      10718         704   MCI Communications Services, 
11492     1290        236         586   CABLE ONE, INC.

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

RIPE Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
39891     2901        151          11   SaudiNet, Saudi Telecom Compa
20940     2557        985        1837   Akamai International B.V.
34984     1965        326         358   TELLCOM ILETISIM HIZMETLERI A
12479     1221        997          83   France Telecom Espana SA
 8551     1203        376          55   Bezeq International-Ltd
 6849     1148        355          21   JSC "Ukrtelecom"
13188     1078         98          65   TOV "Bank-Inform"
 8402     1065        544          15   OJSC "Vimpelcom"
31148     1027         47          45   Freenet Ltd.
 6830      890       2719         463   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     3477        541         152   Telmex Colombia S.A.
 8151     2259       3411         563   Uninet S.A. de C.V.
 7303     1510        940         234   Telecom Argentina S.A.
 6503     1477        437          55   Axtel, S.A.B. de C.V.
11830     1477        368          52   Instituto Costarricense de El
 6147     1160        377          27   Telefonica del Peru S.A.A.
26615     1005       2325          34   Tim Celular S.A.
 3816      999        478         186   COLOMBIA TELECOMUNICACIONES S
 7738      994       1882          40   Telemar Norte Leste S.A.
11172      907        125          77   Alestra, S. de R.L. de C.V.

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     1082        402          44   Link Egypt (Link.NET)
37611      650         48           2   Afrihost-Brevis Computer Serv
36903      626        315         103   Office National des Postes et
36992      509       1359          27   ETISALAT MISR
 8452      490       1472          15   TE-AS
37492      395        234          68   Orange Tunisie
29571      301         37          13   Cote d'Ivoire Telecom
24835      294        466          14   Vodafone Data
15399      284         35          10   Wananchi Group (Kenya) Limite
 2018      257        327          74   TENET (The UNINET Project)

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
 4538     5556       4192          76   China Education and Research 
10620     3477        541         152   Telmex Colombia S.A.
 7545     3334        356         220   TPG Telecom Limited
22773     3242       2947         138   Cox Communications Inc.
 4766     3170      11144        1123   Korea Telecom
17974     2946        914          96   PT Telekomunikasi Indonesia
39891     2901        151          11   SaudiNet, Saudi Telecom Compa
20940     2557        985        1837   Akamai International B.V.
 9829     2459       1467         464   National Internet Backbone
 6389     2299       3671          41   BellSouth.net 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
10620      3477        3325      Telmex Colombia S.A.
 7545      3334        3114      TPG Telecom Limited
22773      3242        3104      Cox Communications Inc.
39891      2901        2890      SaudiNet, Saudi Telecom Compa
17974      2946        2850      PT Telekomunikasi Indonesia
 6389      2299        2258      BellSouth.net Inc.
 4766      3170        2047      Korea Telecom
 9829      2459        1995      National Internet Backbone
18566      2195        1920      MegaPath Corporation
 9808      1940        1910      Guangdong Mobile Communicatio

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

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS  Designation  Network              Transit AS  Description
65001   PRIVATE      5.143.176.0/20       15468       OJSC Rostelecom
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
16589   UNALLOCATED  8.20.247.0/24        35838       CCANET Limited
16589   UNALLOCATED  8.26.56.0/24         35838       CCANET Limited
46473   UNALLOCATED  8.27.122.0/24         3356       Level 3 Communicatio
46473   UNALLOCATED  8.27.124.0/24         3356       Level 3 Communicatio
27205   UNALLOCATED  8.38.16.0/21          3356       Level 3 Communicatio
27205   UNALLOCATED  8.38.20.0/24         32787       Prolexic Technologie

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

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
23.226.112.0/20      62788     >>UNKNOWN<<
23.249.144.0/20      40430     colo4jax, LLC
27.100.7.0/24        56096     >>UNKNOWN<<
41.73.1.0/24         37004     >>UNKNOWN<<
41.73.2.0/24         37004     >>UNKNOWN<<
41.73.3.0/24         37004     >>UNKNOWN<<
41.73.4.0/24         37004     >>UNKNOWN<<
41.73.5.0/24         37004     >>UNKNOWN<<
41.73.6.0/24         37004     >>UNKNOWN<<
41.73.7.0/24         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       /9:13      /10:36      /11:101     /12:266     
/13:511     /14:1035    /15:1761    /16:13039   /17:7614    /18:12699   
/19:25925   /20:37931   /21:39674   /22:65485   /23:57409   /24:328597  
/25:556     /26:598     /27:420     /28:46      /29:33      /30:14      
/31:1       /32:32      

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

  ASN   No of nets  Total ann.   Description
39891     2664          2901      SaudiNet, Saudi Telecom Compa
22773     2471          3242      Cox Communications Inc.
18566     2097          2195      MegaPath Corporation
30036     1511          1696      Mediacom Communications Corp
 6389     1477          2299      BellSouth.net Inc.
10620     1373          3477      Telmex Colombia S.A.
 6983     1338          1689      EarthLink, Inc.
34984     1249          1965      TELLCOM ILETISIM HIZMETLERI A
11492     1193          1290      CABLE ONE, INC.
 6849      968          1148      JSC "Ukrtelecom"

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

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

   1:1584      2:746       4:20        5:2066      6:31        8:958    
  12:1781     13:39       14:1695     15:45       16:2        17:84     
  18:90       20:48       22:1        23:1495     24:1775     27:2278   
  31:1771     32:59       33:2        34:2        35:5        36:287    
  37:2305     38:1219     39:25       40:91       41:2867     42:395    
  43:1738     44:43       45:1896     46:2494     47:77       49:1174   
  50:868      51:33       52:188      54:329      55:5        56:7      
  57:42       58:1538     59:874      60:343      61:1825     62:1509   
  63:1922     64:4452     65:2164     66:4248     67:2153     68:1089   
  69:3291     70:1103     71:476      72:1989     74:2547     75:344    
  76:345      77:1382     78:1248     79:820      80:1276     81:1338   
  82:945      83:700      84:824      85:1611     86:473      87:1086   
  88:561      89:1993     90:174      91:6047     92:896      93:2331   
  94:2332     95:2309     96:486      97:359      98:935      99:46     
 100:75      101:1047    103:10824   104:2415    105:124     106:400    
 107:1175    108:671     109:2191    110:1256    111:1651    112:1006   
 113:1143    114:1052    115:1615    116:1578    117:1429    118:2054   
 119:1624    120:934     121:1178    122:2177    123:2009    124:1569   
 125:1726    128:719     129:419     130:412     131:1326    132:622    
 133:176     134:454     135:127     136:374     137:353     138:1709   
 139:277     140:543     141:458     142:638     143:939     144:688    
 145:160     146:873     147:608     148:1481    149:508     150:649    
 151:882     152:618     153:281     154:623     155:938     156:499    
 157:432     158:337     159:1119    160:484     161:709     162:2322   
 163:546     164:900     165:1047    166:320     167:1148    168:1849   
 169:660     170:1578    171:263     172:561     173:1638    174:743    
 175:723     176:1740    177:3986    178:2208    179:1137    180:2060   
 181:1789    182:1850    183:951     184:800     185:6434    186:2990   
 187:2119    188:2125    189:1708    190:7749    191:1238    192:8937   
 193:5740    194:4389    195:3770    196:1710    197:1073    198:5549   
 199:5699    200:7010    201:3766    202:10115   203:9645    204:4511   
 205:2732    206:2981    207:3120    208:4049    209:3861    210:3877   
 211:2053    212:2696    213:2232    214:856     215:70      216:5782   
 217:1947    218:797     219:607     220:1683    221:869     222:665    
 223:1222   

End of report


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