Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri May 13 18:09:01 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 14 May, 2016

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

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

BGP routing table entries examined:                              593720
    Prefixes after maximum aggregation (per Origin AS):          217775
    Deaggregation factor:                                          2.73
    Unique aggregates announced (without unneeded subnets):      290742
Total ASes present in the Internet Routing Table:                 53727
    Prefixes per ASN:                                             11.05
Origin-only ASes present in the Internet Routing Table:           36600
Origin ASes announcing only one prefix:                           15688
Transit ASes present in the Internet Routing Table:                6437
Transit-only ASes present in the Internet Routing Table:            171
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)                              33
Prefixes from unregistered ASNs in the Routing Table:              1414
    Unregistered ASNs in the Routing Table:                         444
Number of 32-bit ASNs allocated by the RIRs:                      13845
Number of 32-bit ASNs visible in the Routing Table:               10690
Prefixes from 32-bit ASNs in the Routing Table:                   42050
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:            386
Number of addresses announced to Internet:                   2811463492
    Equivalent to 167 /8s, 147 /16s and 135 /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:      193775

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

Prefixes being announced by APNIC Region ASes:                   151912
    Total APNIC prefixes after maximum aggregation:               42356
    APNIC Deaggregation factor:                                    3.59
Prefixes being announced from the APNIC address blocks:          162829
    Unique aggregates announced from the APNIC address blocks:    66401
APNIC Region origin ASes present in the Internet Routing Table:    5177
    APNIC Prefixes per ASN:                                       31.45
APNIC Region origin ASes announcing only one prefix:               1181
APNIC Region transit ASes present in the Internet Routing Table:    913
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:   2070
Number of APNIC addresses announced to Internet:              755234628
    Equivalent to 45 /8s, 3 /16s and 247 /24s
    Percentage of available APNIC address space announced:         88.3

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-64098, 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:                    181169
    Total ARIN prefixes after maximum aggregation:                89627
    ARIN Deaggregation factor:                                     2.02
Prefixes being announced from the ARIN address blocks:           186526
    Unique aggregates announced from the ARIN address blocks:     88714
ARIN Region origin ASes present in the Internet Routing Table:    16363
    ARIN Prefixes per ASN:                                        11.40
ARIN Region origin ASes announcing only one prefix:                5835
ARIN Region transit ASes present in the Internet Routing Table:    1713
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          36
Number of ARIN region 32-bit ASNs visible in the Routing Table:    1199
Number of ARIN addresses announced to Internet:              1101775680
    Equivalent to 65 /8s, 171 /16s and 195 /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:                    142528
    Total RIPE prefixes after maximum aggregation:                70293
    RIPE Deaggregation factor:                                     2.03
Prefixes being announced from the RIPE address blocks:           151781
    Unique aggregates announced from the RIPE address blocks:     93519
RIPE Region origin ASes present in the Internet Routing Table:    18087
    RIPE Prefixes per ASN:                                         8.39
RIPE Region origin ASes announcing only one prefix:                7914
RIPE Region transit ASes present in the Internet Routing Table:    3016
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    4740
Number of RIPE addresses announced to Internet:               704636544
    Equivalent to 41 /8s, 255 /16s and 230 /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:                   61743
    Total LACNIC prefixes after maximum aggregation:              12246
    LACNIC Deaggregation factor:                                   5.04
Prefixes being announced from the LACNIC address blocks:          76062
    Unique aggregates announced from the LACNIC address blocks:   35972
LACNIC Region origin ASes present in the Internet Routing Table:   2475
    LACNIC Prefixes per ASN:                                      30.73
LACNIC Region origin ASes announcing only one prefix:               576
LACNIC Region transit ASes present in the Internet Routing Table:   558
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:  2469
Number of LACNIC addresses announced to Internet:             170943808
    Equivalent to 10 /8s, 48 /16s and 101 /24s
    Percentage of available LACNIC address space announced:       101.9

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:                  14214
    Total AfriNIC prefixes after maximum aggregation:              3215
    AfriNIC Deaggregation factor:                                  4.42
Prefixes being announced from the AfriNIC address blocks:         16136
    Unique aggregates announced from the AfriNIC address blocks:   5791
AfriNIC Region origin ASes present in the Internet Routing Table:   738
    AfriNIC Prefixes per ASN:                                     21.86
AfriNIC Region origin ASes announcing only one prefix:              182
AfriNIC Region transit ASes present in the Internet Routing Table:  168
Average AfriNIC Region AS path length visible:                      4.6
    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:             78489600
    Equivalent to 4 /8s, 173 /16s and 168 /24s
    Percentage of available AfriNIC address space announced:       78.0

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     5558       4192          76   China Education and Research 
 7545     3307        354         213   TPG Telecom Limited
 4766     3167      11145        1123   Korea Telecom
17974     2937        914          96   PT Telekomunikasi Indonesia
 9829     2469       1467         464   National Internet Backbone
 4755     2095        432         243   TATA Communications formerly 
 9808     1928       8717          30   Guangdong Mobile Communicatio
 4808     1659       2299         551   CNCGROUP IP network China169 
 9583     1512        122         562   Sify Limited
38197     1501         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     3250       2947         137   Cox Communications Inc.
 6389     2301       3671          41   BellSouth.net Inc.
18566     2204        394         275   MegaPath Corporation
20115     1920       1937         403   Charter Communications
30036     1722        342         356   Mediacom Communications Corp
 6983     1689        849         232   EarthLink, Inc.
  209     1613       4680        1267   Qwest Communications Company,
 4323     1519        985         376   tw telecom holdings, inc.
16625     1314        484         694   Akamai Technologies, Inc.
  701     1296      10718         704   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     2544        981        1835   Akamai International B.V.
34984     1964        326         357   TELLCOM ILETISIM HIZMETLERI A
 8551     1228        376          55   Bezeq International-Ltd
12479     1202        996          88   France Telecom Espana SA
 6849     1148        355          21   JSC "Ukrtelecom"
13188     1078         98          65   TOV "Bank-Inform"
 8402     1028        544          15   OJSC "Vimpelcom"
31148     1026         47          45   Freenet Ltd.
 9198      939        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     3479        542         134   Telmex Colombia S.A.
 8151     2243       3406         563   Uninet S.A. de C.V.
 7303     1511        940         234   Telecom Argentina S.A.
11830     1481        368          52   Instituto Costarricense de El
 6503     1475        437          55   Axtel, S.A.B. de C.V.
 6147     1158        377          27   Telefonica del Peru S.A.A.
26615     1016       2325          34   Tim Celular S.A.
 3816      997        478         186   COLOMBIA TELECOMUNICACIONES S
 7738      994       1882          40   Telemar Norte Leste S.A.
11172      905        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     1261        402          45   Link Egypt (Link.NET)
37611      648         48           2   Afrihost-Brevis Computer Serv
36903      625        314         106   Office National des Postes et
36992      511       1357          26   ETISALAT MISR
 8452      505       1471          15   TE-AS
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      240        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     5558       4192          76   China Education and Research 
10620     3479        542         134   Telmex Colombia S.A.
 7545     3307        354         213   TPG Telecom Limited
22773     3250       2947         137   Cox Communications Inc.
 4766     3167      11145        1123   Korea Telecom
17974     2937        914          96   PT Telekomunikasi Indonesia
39891     2901        151          11   SaudiNet, Saudi Telecom Compa
20940     2544        981        1835   Akamai International B.V.
 9829     2469       1467         464   National Internet Backbone
 6389     2301       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      3479        3345      Telmex Colombia S.A.
22773      3250        3113      Cox Communications Inc.
 7545      3307        3094      TPG Telecom Limited
39891      2901        2890      SaudiNet, Saudi Telecom Compa
17974      2937        2841      PT Telekomunikasi Indonesia
 6389      2301        2260      BellSouth.net Inc.
 4766      3167        2044      Korea Telecom
 9829      2469        2005      National Internet Backbone
18566      2204        1929      MegaPath Corporation
 9808      1928        1898      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
23.190.0.0/24        63393     BOOM NET
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<<

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    /15:1761    /16:13022   /17:7635    /18:12747   
/19:25946   /20:37976   /21:39776   /22:65656   /23:57370   /24:328155  
/25:554     /26:597     /27:421     /28:46      /29:32      /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          3250      Cox Communications Inc.
18566     2106          2204      MegaPath Corporation
30036     1536          1722      Mediacom Communications Corp
 6389     1477          2301      BellSouth.net Inc.
10620     1370          3479      Telmex Colombia S.A.
 6983     1338          1689      EarthLink, Inc.
34984     1248          1964      TELLCOM ILETISIM HIZMETLERI A
11492     1193          1289      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)
----------------------------------------------

   1:1578      2:728       4:21        5:2070      6:28        8:955    
  12:1776     13:39       14:1684     15:45       16:2        17:84     
  18:89       20:48       23:1593     24:1772     27:2273     31:1765   
  32:59       33:2        34:2        35:5        36:303      37:2297   
  38:1217     39:28       40:91       41:2849     42:395      43:1757   
  44:42       45:1843     46:2518     47:79       49:1166     50:872    
  51:34       52:181      54:329      55:6        56:6        57:42     
  58:1541     59:866      60:347      61:1822     62:1477     63:1919   
  64:4441     65:2155     66:4246     67:2153     68:1088     69:3284   
  70:1101     71:469      72:1990     74:2543     75:344      76:348    
  77:1369     78:1264     79:839      80:1267     81:1348     82:952    
  83:697      84:815      85:1581     86:474      87:1052     88:561    
  89:1995     90:174      91:6063     92:899      93:2334     94:2338   
  95:2313     96:518      97:358      98:935      99:46      100:74     
 101:1046    103:10738   104:2466    105:123     106:398     107:1166   
 108:669     109:2187    110:1249    111:1654    112:989     113:1143   
 114:1046    115:1576    116:1579    117:1428    118:2050    119:1617   
 120:932     121:1176    122:2160    123:2008    124:1568    125:1717   
 128:690     129:402     130:407     131:1327    132:636     133:176    
 134:453     135:126     136:374     137:352     138:1716    139:261    
 140:543     141:458     142:641     143:923     144:694     145:157    
 146:867     147:637     148:1473    149:505     150:647     151:877    
 152:579     153:281     154:624     155:944     156:493     157:415    
 158:355     159:1120    160:480     161:708     162:2332    163:560    
 164:900     165:1056    166:318     167:1148    168:1804    169:660    
 170:1569    171:263     172:553     173:1645    174:742     175:737    
 176:1738    177:3971    178:2209    179:1157    180:2055    181:1776   
 182:1894    183:949     184:808     185:6373    186:2996    187:2134   
 188:2127    189:1723    190:7731    191:1249    192:8947    193:5736   
 194:4377    195:3767    196:1695    197:1038    198:5558    199:5713   
 200:6967    201:3725    202:10118   203:9635    204:4519    205:2727   
 206:2978    207:3122    208:4053    209:3840    210:3912    211:2053   
 212:2695    213:2232    214:852     215:71      216:5787    217:1941   
 218:792     219:593     220:1680    221:870     222:664     223:1222   


End of report


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