[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Nov 20 18:11:30 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 21 Nov, 2015

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

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

BGP routing table entries examined:                              571013
    Prefixes after maximum aggregation (per Origin AS):          212430
    Deaggregation factor:                                          2.69
    Unique aggregates announced (without unneeded subnets):      279150
Total ASes present in the Internet Routing Table:                 52060
    Prefixes per ASN:                                             10.97
Origin-only ASes present in the Internet Routing Table:           36697
Origin ASes announcing only one prefix:                           15985
Transit ASes present in the Internet Routing Table:                6347
Transit-only ASes present in the Internet Routing Table:            166
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      50
    Max AS path prepend of ASN ( 55644)                              41
Prefixes from unregistered ASNs in the Routing Table:              1045
    Unregistered ASNs in the Routing Table:                         377
Number of 32-bit ASNs allocated by the RIRs:                      11786
Number of 32-bit ASNs visible in the Routing Table:                9016
Prefixes from 32-bit ASNs in the Routing Table:                   34268
Number of bogon 32-bit ASNs visible in the Routing Table:            14
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            431
Number of addresses announced to Internet:                   2798739168
    Equivalent to 166 /8s, 209 /16s and 94 /24s
    Percentage of available address space announced:               75.6
    Percentage of allocated address space announced:               75.6
    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:      187607

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

Prefixes being announced by APNIC Region ASes:                   145397
    Total APNIC prefixes after maximum aggregation:               40151
    APNIC Deaggregation factor:                                    3.62
Prefixes being announced from the APNIC address blocks:          153613
    Unique aggregates announced from the APNIC address blocks:    61752
APNIC Region origin ASes present in the Internet Routing Table:    5117
    APNIC Prefixes per ASN:                                       30.02
APNIC Region origin ASes announcing only one prefix:               1200
APNIC Region transit ASes present in the Internet Routing Table:    884
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         50
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1718
Number of APNIC addresses announced to Internet:              755568544
    Equivalent to 45 /8s, 9 /16s and 15 /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:                    180528
    Total ARIN prefixes after maximum aggregation:                88974
    ARIN Deaggregation factor:                                     2.03
Prefixes being announced from the ARIN address blocks:           183890
    Unique aggregates announced from the ARIN address blocks:     87194
ARIN Region origin ASes present in the Internet Routing Table:    16512
    ARIN Prefixes per ASN:                                        11.14
ARIN Region origin ASes announcing only one prefix:                5990
ARIN Region transit ASes present in the Internet Routing Table:    1712
Average ARIN Region AS path length visible:                         3.7
    Max ARIN Region AS path length visible:                          23
Number of ARIN region 32-bit ASNs visible in the Routing Table:     832
Number of ARIN addresses announced to Internet:              1100853184
    Equivalent to 65 /8s, 157 /16s and 175 /24s
    Percentage of available ARIN address space announced:          58.2

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:                    137198
    Total RIPE prefixes after maximum aggregation:                68452
    RIPE Deaggregation factor:                                     2.00
Prefixes being announced from the RIPE address blocks:           144762
    Unique aggregates announced from the RIPE address blocks:     89761
RIPE Region origin ASes present in the Internet Routing Table:    18018
    RIPE Prefixes per ASN:                                         8.03
RIPE Region origin ASes announcing only one prefix:                7996
RIPE Region transit ASes present in the Internet Routing Table:    2968
Average RIPE Region AS path length visible:                         4.8
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    4212
Number of RIPE addresses announced to Internet:               701424000
    Equivalent to 41 /8s, 206 /16s and 225 /24s
    Percentage of available RIPE address space announced:         102.0

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
                       40960-45055, 47104-52223, 56320-58367
                       59392-61439, 61952-62463, 196608-204287
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:                   60392
    Total LACNIC prefixes after maximum aggregation:              11717
    LACNIC Deaggregation factor:                                   5.15
Prefixes being announced from the LACNIC address blocks:          72900
    Unique aggregates announced from the LACNIC address blocks:   33932
LACNIC Region origin ASes present in the Internet Routing Table:   2468
    LACNIC Prefixes per ASN:                                      29.54
LACNIC Region origin ASes announcing only one prefix:               606
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:                        25
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  2084
Number of LACNIC addresses announced to Internet:             169848832
    Equivalent to 10 /8s, 31 /16s and 176 /24s
    Percentage of available LACNIC address space announced:       101.2

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-265628 + ERX transfers
LACNIC Address Blocks  177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
                       191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes:                  13143
    Total AfriNIC prefixes after maximum aggregation:              3095
    AfriNIC Deaggregation factor:                                  4.25
Prefixes being announced from the AfriNIC address blocks:         15417
    Unique aggregates announced from the AfriNIC address blocks:   6152
AfriNIC Region origin ASes present in the Internet Routing Table:   736
    AfriNIC Prefixes per ASN:                                     20.95
AfriNIC Region origin ASes announcing only one prefix:              193
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:  170
Number of AfriNIC addresses announced to Internet:             70674944
    Equivalent to 4 /8s, 54 /16s and 106 /24s
    Percentage of available AfriNIC address space announced:       70.2

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     5600       4192          76   China Education and Research 
 4766     2993      11135         989   Korea Telecom
 7545     2954        340         143   TPG Telecom Limited
17974     2731        914          96   PT Telekomunikasi Indonesia
 4755     2065        431         230   TATA Communications formerly 
 9829     2022       1407         304   National Internet Backbone
 9808     1659       8639          18   Guangdong Mobile Communicatio
 4812     1609       2099         114   China Telecom (Group)
 4808     1550       2265         488   CNCGROUP IP network China169 
 9583     1495        119         560   Sify Limited

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     3245       2964         143   Cox Communications Inc.
 3356     2553      10689         511   Level 3 Communications, Inc.
 6389     2510       3687          42   BellSouth.net Inc.
18566     2216        394         277   MegaPath Corporation
20115     1887       1897         400   Charter Communications
 6983     1699        849         239   EarthLink, Inc.
30036     1647        329         361   Mediacom Communications Corp
 4323     1578       1020         398   tw telecom holdings, inc.
  209     1479       4325        1232   Qwest Communications Company,
  701     1392      11415         666   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     2219        876        1598   Akamai International B.V.
34984     1920        320         403   TELLCOM ILETISIM HIZMETLERI A
 8402     1197        544          15   OJSC "Vimpelcom"
 8551     1088        376          53   Bezeq International-Ltd
13188     1074         97          79   TOV "Bank-Inform"
12479     1042        982          84   France Telecom Espana SA
31148     1041         47          41   Freenet Ltd.
 9198      971        350          29   JSC Kazakhtelecom
 6830      892       2706         466   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     3400        541         160   Telmex Colombia S.A.
 8151     2108       3334         496   Uninet S.A. de C.V.
 7303     1578        943         237   Telecom Argentina S.A.
 6503     1379        437          57   Axtel, S.A.B. de C.V.
28573     1313       2166         117   NET Serviços de Comunicação S
11830     1094        364          24   Instituto Costarricense de El
 6147     1040        376          34   Telefonica del Peru S.A.A.
26615     1002       2325          34   Tim Celular S.A.
 7738      995       1882          41   Telemar Norte Leste S.A.
 3816      967        451         178   COLOMBIA TELECOMUNICACIONES S

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     1112       1470          14   TE-AS
24863     1070        409          38   Link Egypt (Link.NET)
37611      571         38          42   Afrihost-Brevis Computer Serv
36903      522        263         102   Office National des Postes et
36992      437       1229          32   ETISALAT MISR
37492      326        192          74   Orange Tunisie
29571      243         21          11   Cote d'Ivoire Telecom
24835      234        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     5600       4192          76   China Education and Research 
10620     3400        541         160   Telmex Colombia S.A.
22773     3245       2964         143   Cox Communications Inc.
 4766     2993      11135         989   Korea Telecom
 7545     2954        340         143   TPG Telecom Limited
17974     2731        914          96   PT Telekomunikasi Indonesia
 3356     2553      10689         511   Level 3 Communications, Inc.
 6389     2510       3687          42   BellSouth.net Inc.
39891     2473        129           7   SaudiNet, Saudi Telecom Compa
20940     2219        876        1598   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      3400        3240      Telmex Colombia S.A.
22773      3245        3102      Cox Communications Inc.
 7545      2954        2811      TPG Telecom Limited
17974      2731        2635      PT Telekomunikasi Indonesia
 6389      2510        2468      BellSouth.net Inc.
39891      2473        2466      SaudiNet, Saudi Telecom Compa
 3356      2553        2042      Level 3 Communications, Inc.
 4766      2993        2004      Korea Telecom
18566      2216        1939      MegaPath Corporation
 4755      2065        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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
100.64.254.0/24       9583     Sify Limited

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

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
31.217.248.0/21      44902     COVAGE NETWORKS SASU
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.

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       /9:11      /10:36      /11:97      /12:263     
/13:507     /14:1008    /15:1761    /16:12925   /17:7435    /18:12585   
/19:26080   /20:37662   /21:39749   /22:62786   /23:54562   /24:311970  
/25:545     /26:566     /27:385     /28:19      /29:15      /30:9       
/31:0       /32:21      

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

  ASN   No of nets  Total ann.   Description
22773     2437          3245      Cox Communications Inc.
39891     2432          2473      SaudiNet, Saudi Telecom Compa
18566     2118          2216      MegaPath Corporation
 6389     1554          2510      BellSouth.net Inc.
30036     1464          1647      Mediacom Communications Corp
 6983     1345          1699      EarthLink, Inc.
10620     1276          3400      Telmex Colombia S.A.
34984     1204          1920      TELLCOM ILETISIM HIZMETLERI A
11492     1127          1211      CABLE ONE, INC.
31148      960          1041      Freenet Ltd.

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

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

   1:1640      2:701       4:100       5:1949      6:25        8:1412   
  12:1801     13:27       14:1528     15:22       16:2        17:57     
  18:19       20:47       23:1291     24:1736     27:2118     31:1667   
  32:54       33:2        34:4        35:5        36:172      37:2259   
  38:1112     39:20       40:73       41:2924     42:366      43:1619   
  44:36       45:1509     46:2316     47:64       49:1034     50:817    
  52:29       54:92       55:7        56:8        57:44       58:1419   
  59:832      60:508      61:1795     62:1398     63:1905     64:4371   
  65:2192     66:4022     67:2125     68:1085     69:3273     70:1017   
  71:463      72:1985     74:2549     75:356      76:416      77:1397   
  78:1254     79:802      80:1344     81:1347     82:835      83:651    
  84:794      85:1482     86:455      87:1036     88:536      89:1909   
  90:164      91:5990     92:863      93:2277     94:2184     95:2238   
  96:475      97:352      98:943      99:47      100:79      101:844    
 103:8871    104:2163    105:72      106:358     107:1097    108:634    
 109:2115    110:1218    111:1444    112:865     113:1103    114:878    
 115:1484    116:1474    117:1182    118:1971    119:1502    120:498    
 121:1154    122:2247    123:1860    124:1581    125:1738    128:704    
 129:369     130:388     131:1281    132:587     133:165     134:442    
 135:119     136:337     137:305     138:1478    139:190     140:244    
 141:454     142:655     143:692     144:572     145:142     146:794    
 147:612     148:1279    149:440     150:624     151:809     152:566    
 153:264     154:466     155:904     156:435     157:444     158:352    
 159:1062    160:407     161:665     162:2183    163:519     164:707    
 165:1082    166:312     167:883     168:1302    169:540     170:1430   
 171:261     172:351     173:1545    174:721     175:742     176:1509   
 177:3977    178:2293    179:1028    180:2031    181:1633    182:1859   
 183:668     184:766     185:4880    186:2996    187:1887    188:2074   
 189:1698    190:7493    191:1231    192:8688    193:5669    194:4291   
 195:3661    196:2260    197:1167    198:5528    199:5564    200:6697   
 201:3501    202:9875    203:9274    204:4572    205:2746    206:3029   
 207:3009    208:4005    209:3970    210:3756    211:2012    212:2613   
 213:2163    214:835     215:72      216:5753    217:1870    218:788    
 219:541     220:1601    221:805     222:725     223:856    

End of report


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