Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri May 6 18:10:18 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 07 May, 2016

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

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

BGP routing table entries examined:                              593234
    Prefixes after maximum aggregation (per Origin AS):          217584
    Deaggregation factor:                                          2.73
    Unique aggregates announced (without unneeded subnets):      290983
Total ASes present in the Internet Routing Table:                 53672
    Prefixes per ASN:                                             11.05
Origin-only ASes present in the Internet Routing Table:           36588
Origin ASes announcing only one prefix:                           15696
Transit ASes present in the Internet Routing Table:                6446
Transit-only ASes present in the Internet Routing Table:            175
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      39
    Max AS path prepend of ASN ( 40285)                              34
Prefixes from unregistered ASNs in the Routing Table:              1002
    Unregistered ASNs in the Routing Table:                         362
Number of 32-bit ASNs allocated by the RIRs:                      13757
Number of 32-bit ASNs visible in the Routing Table:               10638
Prefixes from 32-bit ASNs in the Routing Table:                   41921
Number of bogon 32-bit ASNs visible in the Routing Table:             3
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            373
Number of addresses announced to Internet:                   2811765860
    Equivalent to 167 /8s, 152 /16s and 36 /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:      193871

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

Prefixes being announced by APNIC Region ASes:                   151595
    Total APNIC prefixes after maximum aggregation:               42244
    APNIC Deaggregation factor:                                    3.59
Prefixes being announced from the APNIC address blocks:          162397
    Unique aggregates announced from the APNIC address blocks:    66463
APNIC Region origin ASes present in the Internet Routing Table:    5168
    APNIC Prefixes per ASN:                                       31.42
APNIC Region origin ASes announcing only one prefix:               1183
APNIC Region transit ASes present in the Internet Routing Table:    917
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:   2052
Number of APNIC addresses announced to Internet:              754555972
    Equivalent to 44 /8s, 249 /16s and 156 /24s
    Percentage of available APNIC address space announced:         88.2

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:                    180885
    Total ARIN prefixes after maximum aggregation:                89452
    ARIN Deaggregation factor:                                     2.02
Prefixes being announced from the ARIN address blocks:           186163
    Unique aggregates announced from the ARIN address blocks:     88526
ARIN Region origin ASes present in the Internet Routing Table:    16367
    ARIN Prefixes per ASN:                                        11.37
ARIN Region origin ASes announcing only one prefix:                5849
ARIN Region transit ASes present in the Internet Routing Table:    1714
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          37
Number of ARIN region 32-bit ASNs visible in the Routing Table:    1182
Number of ARIN addresses announced to Internet:              1102188096
    Equivalent to 65 /8s, 178 /16s and 14 /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:                    142748
    Total RIPE prefixes after maximum aggregation:                70381
    RIPE Deaggregation factor:                                     2.03
Prefixes being announced from the RIPE address blocks:           151841
    Unique aggregates announced from the RIPE address blocks:     93607
RIPE Region origin ASes present in the Internet Routing Table:    18079
    RIPE Prefixes per ASN:                                         8.40
RIPE Region origin ASes announcing only one prefix:                7907
RIPE Region transit ASes present in the Internet Routing Table:    3018
Average RIPE Region AS path length visible:                         4.2
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    4724
Number of RIPE addresses announced to Internet:               704921216
    Equivalent to 42 /8s, 4 /16s and 62 /24s
    Percentage of available RIPE address space announced:         102.5

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, 196608-204287
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:                   61745
    Total LACNIC prefixes after maximum aggregation:              12272
    LACNIC Deaggregation factor:                                   5.03
Prefixes being announced from the LACNIC address blocks:          76254
    Unique aggregates announced from the LACNIC address blocks:   36232
LACNIC Region origin ASes present in the Internet Routing Table:   2481
    LACNIC Prefixes per ASN:                                      30.74
LACNIC Region origin ASes announcing only one prefix:               576
LACNIC Region transit ASes present in the Internet Routing Table:   559
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:  2468
Number of LACNIC addresses announced to Internet:             171276128
    Equivalent to 10 /8s, 53 /16s and 119 /24s
    Percentage of available LACNIC address space announced:       102.1

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:                  14245
    Total AfriNIC prefixes after maximum aggregation:              3197
    AfriNIC Deaggregation factor:                                  4.46
Prefixes being announced from the AfriNIC address blocks:         16206
    Unique aggregates announced from the AfriNIC address blocks:   5817
AfriNIC Region origin ASes present in the Internet Routing Table:   738
    AfriNIC Prefixes per ASN:                                     21.96
AfriNIC Region origin ASes announcing only one prefix:              181
AfriNIC Region transit ASes present in the Internet Routing Table:  166
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  212
Number of AfriNIC addresses announced to Internet:             78466816
    Equivalent to 4 /8s, 173 /16s and 79 /24s
    Percentage of available AfriNIC address space announced:       77.9

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     5559       4192          76   China Education and Research 
 7545     3304        354         215   TPG Telecom Limited
 4766     3168      11144        1124   Korea Telecom
17974     2927        914          96   PT Telekomunikasi Indonesia
 9829     2498       1466         469   National Internet Backbone
 4755     2090        432         240   TATA Communications formerly 
 9808     1893       8717          30   Guangdong Mobile Communicatio
 4808     1660       2300         545   CNCGROUP IP network China169 
 9583     1512        122         562   Sify Limited
38197     1511         93         218   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     3248       2947         137   Cox Communications Inc.
 6389     2322       3671          41   BellSouth.net Inc.
18566     2204        394         275   MegaPath Corporation
20115     1922       1937         404   Charter Communications
30036     1716        341         362   Mediacom Communications Corp
 6983     1689        849         232   EarthLink, Inc.
  209     1584       4671        1251   Qwest Communications Company,
 4323     1528        985         380   tw telecom holdings, inc.
11492     1300        240         598   CABLE ONE, INC.
  701     1298      10718         706   MCI Communications Services, 

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     2508        958        1817   Akamai International B.V.
34984     1967        323         417   TELLCOM ILETISIM HIZMETLERI A
 8551     1256        376          55   Bezeq International-Ltd
12479     1190        995          93   France Telecom Espana SA
 6849     1148        355          21   JSC "Ukrtelecom"
13188     1078         98          65   TOV "Bank-Inform"
 8402     1028        544          15   OJSC "Vimpelcom"
31148     1025         47          45   Freenet Ltd.
 9198      969        352          25   JSC Kazakhtelecom

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

LACNIC Region per AS prefix count summary
-----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
10620     3477        542         135   Telmex Colombia S.A.
 8151     2240       3399         570   Uninet S.A. de C.V.
 7303     1516        941         238   Telecom Argentina S.A.
11830     1483        368          53   Instituto Costarricense de El
 6503     1437        437          56   Axtel, S.A.B. de C.V.
 6147     1057        377          27   Telefonica del Peru S.A.A.
26615     1017       2325          34   Tim Celular S.A.
 3816      997        478         187   COLOMBIA TELECOMUNICACIONES S
 7738      994       1882          40   Telemar Norte Leste S.A.
11172      870        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     1255        402          40   Link Egypt (Link.NET)
37611      644         48           2   Afrihost-Brevis Computer Serv
36903      617        310         105   Office National des Postes et
 8452      538       1472          15   TE-AS
36992      511       1357          26   ETISALAT MISR
37492      395        234          68   Orange Tunisie
24835      329        402          15   Vodafone Data
29571      301         37          13   Cote d'Ivoire Telecom
 2018      257        327          74   TENET (The UNINET Project)
36947      243        807          13   Telecom Algeria

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     5559       4192          76   China Education and Research 
10620     3477        542         135   Telmex Colombia S.A.
 7545     3304        354         215   TPG Telecom Limited
22773     3248       2947         137   Cox Communications Inc.
 4766     3168      11144        1124   Korea Telecom
17974     2927        914          96   PT Telekomunikasi Indonesia
39891     2901        151          11   SaudiNet, Saudi Telecom Compa
20940     2508        958        1817   Akamai International B.V.
 9829     2498       1466         469   National Internet Backbone
 6389     2322       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        3342      Telmex Colombia S.A.
22773      3248        3111      Cox Communications Inc.
 7545      3304        3089      TPG Telecom Limited
39891      2901        2890      SaudiNet, Saudi Telecom Compa
17974      2927        2831      PT Telekomunikasi Indonesia
 6389      2322        2281      BellSouth.net Inc.
 4766      3168        2044      Korea Telecom
 9829      2498        2029      National Internet Backbone
18566      2204        1929      MegaPath Corporation
 9808      1893        1863      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     /12:267     
/13:509     /14:1037    /15:1764    /16:13018   /17:7621    /18:12763   
/19:25962   /20:38096   /21:39797   /22:65501   /23:57186   /24:327849  
/25:558     /26:595     /27:422     /28:45      /29:31      /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     2478          3248      Cox Communications Inc.
18566     2106          2204      MegaPath Corporation
30036     1530          1716      Mediacom Communications Corp
 6389     1487          2322      BellSouth.net Inc.
10620     1368          3477      Telmex Colombia S.A.
 6983     1338          1689      EarthLink, Inc.
34984     1251          1967      TELLCOM ILETISIM HIZMETLERI A
11492     1205          1300      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)
----------------------------------------------

   1:1574      2:735       4:21        5:2067      6:28        8:954    
  12:1781     13:39       14:1683     15:45       16:2        17:83     
  18:89       20:48       23:1536     24:1773     27:2267     31:1767   
  32:59       33:2        34:2        35:5        36:294      37:2277   
  38:1211     39:27       40:90       41:2881     42:396      43:1747   
  44:42       45:1811     46:2509     47:78       49:1160     50:868    
  51:32       52:178      54:328      55:4        56:6        57:42     
  58:1538     59:863      60:345      61:1810     62:1491     63:1921   
  64:4478     65:2146     66:4247     67:2165     68:1087     69:3245   
  70:1101     71:466      72:1990     74:2543     75:343      76:346    
  77:1382     78:1257     79:844      80:1274     81:1378     82:931    
  83:695      84:814      85:1578     86:474      87:1053     88:560    
  89:1991     90:169      91:6074     92:899      93:2340     94:2339   
  95:2310     96:502      97:359      98:934      99:46      100:74     
 101:1052    103:10614   104:2419    105:124     106:396     107:1165   
 108:667     109:2185    110:1251    111:1650    112:972     113:1144   
 114:1045    115:1549    116:1576    117:1430    118:2055    119:1623   
 120:931     121:1172    122:2182    123:2012    124:1567    125:1723   
 128:682     129:396     130:406     131:1343    132:635     133:174    
 134:454     135:126     136:374     137:345     138:1743    139:255    
 140:541     141:458     142:641     143:950     144:668     145:156    
 146:869     147:651     148:1466    149:503     150:645     151:882    
 152:618     153:280     154:613     155:946     156:495     157:430    
 158:358     159:1113    160:478     161:741     162:2320    163:560    
 164:900     165:1053    166:317     167:1155    168:1767    169:652    
 170:1574    171:264     172:546     173:1633    174:738     175:734    
 176:1720    177:3983    178:2207    179:1147    180:2059    181:1753   
 182:1892    183:938     184:803     185:6405    186:3135    187:2136   
 188:2133    189:1736    190:7755    191:1248    192:8941    193:5725   
 194:4374    195:3765    196:1701    197:1057    198:5540    199:5702   
 200:6951    201:3714    202:10117   203:9625    204:4518    205:2713   
 206:2974    207:3097    208:4042    209:3819    210:3913    211:2049   
 212:2705    213:2241    214:847     215:72      216:5791    217:1920   
 218:792     219:578     220:1676    221:870     222:658     223:1217   


End of report


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