Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Dec 18 18:10:59 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,
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 19 Dec, 2015

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

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

BGP routing table entries examined:                              575038
    Prefixes after maximum aggregation (per Origin AS):          212671
    Deaggregation factor:                                          2.70
    Unique aggregates announced (without unneeded subnets):      279789
Total ASes present in the Internet Routing Table:                 52332
    Prefixes per ASN:                                             10.99
Origin-only ASes present in the Internet Routing Table:           36643
Origin ASes announcing only one prefix:                           15899
Transit ASes present in the Internet Routing Table:                6389
Transit-only ASes present in the Internet Routing Table:            168
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      37
    Max AS path prepend of ASN ( 40285)                              34
Prefixes from unregistered ASNs in the Routing Table:              1022
    Unregistered ASNs in the Routing Table:                         366
Number of 32-bit ASNs allocated by the RIRs:                      12134
Number of 32-bit ASNs visible in the Routing Table:                9300
Prefixes from 32-bit ASNs in the Routing Table:                   35469
Number of bogon 32-bit ASNs visible in the Routing Table:            16
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            410
Number of addresses announced to Internet:                   2802619584
    Equivalent to 167 /8s, 12 /16s and 148 /24s
    Percentage of available address space announced:               75.7
    Percentage of allocated address space announced:               75.7
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               97.8
Total number of prefixes smaller than registry allocations:      189105

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

Prefixes being announced by APNIC Region ASes:                   145893
    Total APNIC prefixes after maximum aggregation:               39962
    APNIC Deaggregation factor:                                    3.65
Prefixes being announced from the APNIC address blocks:          154461
    Unique aggregates announced from the APNIC address blocks:    61426
APNIC Region origin ASes present in the Internet Routing Table:    5124
    APNIC Prefixes per ASN:                                       30.14
APNIC Region origin ASes announcing only one prefix:               1200
APNIC Region transit ASes present in the Internet Routing Table:    892
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         34
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1759
Number of APNIC addresses announced to Internet:              756146560
    Equivalent to 45 /8s, 17 /16s and 225 /24s
    Percentage of available APNIC address space announced:         88.4

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:                    181146
    Total ARIN prefixes after maximum aggregation:                89006
    ARIN Deaggregation factor:                                     2.04
Prefixes being announced from the ARIN address blocks:           184534
    Unique aggregates announced from the ARIN address blocks:     86477
ARIN Region origin ASes present in the Internet Routing Table:    16478
    ARIN Prefixes per ASN:                                        11.20
ARIN Region origin ASes announcing only one prefix:                5936
ARIN Region transit ASes present in the Internet Routing Table:    1723
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:     895
Number of ARIN addresses announced to Internet:              1102004160
    Equivalent to 65 /8s, 175 /16s and 63 /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, 393216-395164
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:                    138479
    Total RIPE prefixes after maximum aggregation:                68745
    RIPE Deaggregation factor:                                     2.01
Prefixes being announced from the RIPE address blocks:           146403
    Unique aggregates announced from the RIPE address blocks:     90629
RIPE Region origin ASes present in the Internet Routing Table:    18038
    RIPE Prefixes per ASN:                                         8.12
RIPE Region origin ASes announcing only one prefix:                7978
RIPE Region transit ASes present in the Internet Routing Table:    2990
Average RIPE Region AS path length visible:                         4.8
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    4316
Number of RIPE addresses announced to Internet:               702141824
    Equivalent to 41 /8s, 217 /16s and 213 /24s
    Percentage of available RIPE address space announced:         102.1

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:                   60498
    Total LACNIC prefixes after maximum aggregation:              11803
    LACNIC Deaggregation factor:                                   5.13
Prefixes being announced from the LACNIC address blocks:          73413
    Unique aggregates announced from the LACNIC address blocks:   34606
LACNIC Region origin ASes present in the Internet Routing Table:   2461
    LACNIC Prefixes per ASN:                                      29.83
LACNIC Region origin ASes announcing only one prefix:               594
LACNIC Region transit ASes present in the Internet Routing Table:   537
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:  2153
Number of LACNIC addresses announced to Internet:             170625024
    Equivalent to 10 /8s, 43 /16s and 136 /24s
    Percentage of available LACNIC address space announced:       101.7

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:                  13470
    Total AfriNIC prefixes after maximum aggregation:              3113
    AfriNIC Deaggregation factor:                                  4.33
Prefixes being announced from the AfriNIC address blocks:         15817
    Unique aggregates announced from the AfriNIC address blocks:   6300
AfriNIC Region origin ASes present in the Internet Routing Table:   736
    AfriNIC Prefixes per ASN:                                     21.49
AfriNIC Region origin ASes announcing only one prefix:              191
AfriNIC Region transit ASes present in the Internet Routing Table:  168
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  177
Number of AfriNIC addresses announced to Internet:             71324160
    Equivalent to 4 /8s, 64 /16s and 82 /24s
    Percentage of available AfriNIC address space announced:       70.9

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     5599       4192          76   China Education and Research 
 7545     3059        346         157   TPG Telecom Limited
 4766     3016      11136         999   Korea Telecom
17974     2758        914          96   PT Telekomunikasi Indonesia
 9829     2201       1413         372   National Internet Backbone
 4755     2067        431         232   TATA Communications formerly 
 9808     1687       8639          18   Guangdong Mobile Communicatio
 4808     1590       2275         504   CNCGROUP IP network China169 
 9583     1507        163          80   Sify Limited
38197     1412         88         186   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     3270       2964         145   Cox Communications Inc.
 3356     2600      10693         537   Level 3 Communications, Inc.
 6389     2508       3687          42   BellSouth.net Inc.
18566     2212        394         277   MegaPath Corporation
20115     1897       1902         403   Charter Communications
 6983     1698        849         238   EarthLink, Inc.
30036     1666        332         334   Mediacom Communications Corp
 4323     1577       1021         393   tw telecom holdings, inc.
  209     1463       4338        1227   Qwest Communications Company,
  701     1373      11441         646   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     2473        129           7   SaudiNet, Saudi Telecom Compa
20940     2261        892        1617   Akamai International B.V.
34984     1910        318         426   TELLCOM ILETISIM HIZMETLERI A
 8551     1437        376          44   Bezeq International-Ltd
 8402     1082        544          15   OJSC "Vimpelcom"
13188     1075         97          79   TOV "Bank-Inform"
12479     1062        965          80   France Telecom Espana SA
31148     1042         47          41   Freenet Ltd.
 9198      950        349          25   JSC Kazakhtelecom
 6830      898       2712         468   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     3419        543         113   Telmex Colombia S.A.
 8151     2122       3364         491   Uninet S.A. de C.V.
 7303     1581        942         241   Telecom Argentina S.A.
 6503     1388        453          58   Axtel, S.A.B. de C.V.
28573     1213       2174         131   NET Serviços de Comunicação S
11830     1094        366          25   Instituto Costarricense de El
 6147     1039        376          34   Telefonica del Peru S.A.A.
 7738      994       1882          41   Telemar Norte Leste S.A.
 3816      974        459         185   COLOMBIA TELECOMUNICACIONES S
26615      948       2325          34   Tim Celular S.A.

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     1184       1470          14   TE-AS
24863     1135        405          37   Link Egypt (Link.NET)
37611      583         39          40   Afrihost-Brevis Computer Serv
36903      552        278         110   Office National des Postes et
36992      434       1233          33   ETISALAT MISR
37492      325        192          74   Orange Tunisie
29571      264         21          11   Cote d'Ivoire Telecom
24835      245        146          12   Vodafone Data
 3741      221        837         183   Internet Solutions
15706      171         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
 4538     5599       4192          76   China Education and Research 
10620     3419        543         113   Telmex Colombia S.A.
22773     3270       2964         145   Cox Communications Inc.
 7545     3059        346         157   TPG Telecom Limited
 4766     3016      11136         999   Korea Telecom
17974     2758        914          96   PT Telekomunikasi Indonesia
 3356     2600      10693         537   Level 3 Communications, Inc.
 6389     2508       3687          42   BellSouth.net Inc.
39891     2473        129           7   SaudiNet, Saudi Telecom Compa
20940     2261        892        1617   Akamai International B.V.

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      3419        3306      Telmex Colombia S.A.
22773      3270        3125      Cox Communications Inc.
 7545      3059        2902      TPG Telecom Limited
17974      2758        2662      PT Telekomunikasi Indonesia
 6389      2508        2466      BellSouth.net Inc.
39891      2473        2466      SaudiNet, Saudi Telecom Compa
 3356      2600        2063      Level 3 Communications, Inc.
 4766      3016        2017      Korea Telecom
18566      2212        1935      MegaPath Corporation
 4755      2067        1835      TATA Communications formerly 

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

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

Bad AS  Designation  Network              Transit AS  Description
30662   UNALLOCATED  8.2.129.0/24          3356       Level 3 Communicatio
53506   UNALLOCATED  8.17.102.0/23         3356       Level 3 Communicatio
46467   UNALLOCATED  8.19.192.0/24        46887       Lightower Fiber Netw
18985   UNALLOCATED  8.21.68.0/22          3356       Level 3 Communicatio
46473   UNALLOCATED  8.27.122.0/24         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
15347   UNALLOCATED  8.224.147.0/24       12064       Cox Communications I
33628   UNALLOCATED  12.0.239.0/24         1239       Sprint
32805   UNALLOCATED  12.1.225.0/24         7018       AT&T Services, Inc.

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

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

Network            Origin AS  Description
23.226.112.0/20      62788     >>UNKNOWN<<
23.249.144.0/20      40430     colo4jax, LLC
23.249.144.0/21      40430     colo4jax, LLC
23.249.152.0/21      40430     colo4jax, LLC
27.100.7.0/24        56096     >>UNKNOWN<<
31.170.96.0/23       23456     32bit Transition AS
37.46.8.0/23         13768     Peer 1 Network (USA) Inc.
37.46.10.0/23        36351     SoftLayer Technologies Inc.
37.46.14.0/24        36351     SoftLayer Technologies Inc.
37.46.15.0/24        36351     SoftLayer Technologies Inc.

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      /11:100     /12:265     
/13:506     /14:1016    /15:1773    /16:12988   /17:7408    /18:12610   
/19:25580   /20:37740   /21:39987   /22:63460   /23:54945   /24:315024  
/25:546     /26:578     /27:384     /28:17      /29:16      /30:9       
/31:0       /32:21      

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

  ASN   No of nets  Total ann.   Description
22773     2458          3270      Cox Communications Inc.
39891     2432          2473      SaudiNet, Saudi Telecom Compa
18566     2114          2212      MegaPath Corporation
 6389     1553          2508      BellSouth.net Inc.
30036     1483          1666      Mediacom Communications Corp
 6983     1345          1698      EarthLink, Inc.
10620     1289          3419      Telmex Colombia S.A.
34984     1205          1910      TELLCOM ILETISIM HIZMETLERI A
11492     1132          1222      CABLE ONE, INC.
31148      961          1042      Freenet Ltd.

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

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

   1:1643      2:653       4:100       5:2068      6:26        8:1412   
  12:1801     13:30       14:1588     15:23       16:2        17:57     
  18:19       20:48       22:1        23:1320     24:1730     27:2132   
  31:1703     32:54       33:2        34:4        35:5        36:192    
  37:2211     38:1137     39:22       40:76       41:3005     42:368    
  43:1623     44:36       45:1567     46:2353     47:64       49:1069   
  50:825      51:3        52:35       54:96       55:8        56:8      
  57:44       58:1430     59:840      60:519      61:1760     62:1461   
  63:1909     64:4436     65:2186     66:4071     67:2136     68:1090   
  69:3270     70:1043     71:461      72:1976     74:2557     75:358    
  76:416      77:1378     78:1280     79:820      80:1324     81:1361   
  82:848      83:669      84:779      85:1532     86:456      87:1048   
  88:548      89:1930     90:153      91:5964     92:861      93:2307   
  94:2238     95:2242     96:472      97:353      98:957      99:45     
 100:79      101:872     103:9167    104:2171    105:88      106:361    
 107:1108    108:638     109:2369    110:1239    111:1542    112:878    
 113:1188    114:916     115:1534    116:1515    117:1351    118:2009   
 119:1491    120:513     121:1163    122:2254    123:1872    124:1570   
 125:1739    128:674     129:353     130:422     131:1281    132:592    
 133:169     134:452     135:121     136:348     137:310     138:1586   
 139:197     140:249     141:465     142:637     143:737     144:578    
 145:150     146:827     147:609     148:1306    149:450     150:622    
 151:809     152:570     153:269     154:477     155:904     156:443    
 157:404     158:347     159:1065    160:421     161:690     162:2213   
 163:501     164:712     165:1100    166:315     167:913     168:1339   
 169:560     170:1484    171:267     172:373     173:1572    174:716    
 175:766     176:1497    177:3961    178:2277    179:1049    180:2051   
 181:1629    182:1911    183:649     184:763     185:5177    186:3051   
 187:1879    188:2125    189:1710    190:7543    191:1262    192:8738   
 193:5734    194:4308    195:3730    196:2250    197:1113    198:5503   
 199:5518    200:6707    201:3489    202:9869    203:9299    204:4557   
 205:2730    206:2966    207:3018    208:4017    209:3973    210:3766   
 211:2018    212:2616    213:2199    214:831     215:73      216:5721   
 217:1871    218:741     219:543     220:1640    221:798     222:641    
 223:874    

End of report



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