[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Nov 27 18:11:16 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 28 Nov, 2015

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

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

BGP routing table entries examined:                              571471
    Prefixes after maximum aggregation (per Origin AS):          212838
    Deaggregation factor:                                          2.69
    Unique aggregates announced (without unneeded subnets):      279928
Total ASes present in the Internet Routing Table:                 52120
    Prefixes per ASN:                                             10.96
Origin-only ASes present in the Internet Routing Table:           36663
Origin ASes announcing only one prefix:                           15952
Transit ASes present in the Internet Routing Table:                6370
Transit-only ASes present in the Internet Routing Table:            165
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      35
    Max AS path prepend of ASN ( 55644)                              31
Prefixes from unregistered ASNs in the Routing Table:              1036
    Unregistered ASNs in the Routing Table:                         371
Number of 32-bit ASNs allocated by the RIRs:                      11884
Number of 32-bit ASNs visible in the Routing Table:                9087
Prefixes from 32-bit ASNs in the Routing Table:                   34497
Number of bogon 32-bit ASNs visible in the Routing Table:            15
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            415
Number of addresses announced to Internet:                   2802174912
    Equivalent to 167 /8s, 5 /16s and 203 /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:      188217

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

Prefixes being announced by APNIC Region ASes:                   144685
    Total APNIC prefixes after maximum aggregation:               40283
    APNIC Deaggregation factor:                                    3.59
Prefixes being announced from the APNIC address blocks:          152898
    Unique aggregates announced from the APNIC address blocks:    61972
APNIC Region origin ASes present in the Internet Routing Table:    5115
    APNIC Prefixes per ASN:                                       29.89
APNIC Region origin ASes announcing only one prefix:               1194
APNIC Region transit ASes present in the Internet Routing Table:    888
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         34
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1726
Number of APNIC addresses announced to Internet:              756128128
    Equivalent to 45 /8s, 17 /16s and 153 /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:                    180739
    Total ARIN prefixes after maximum aggregation:                89055
    ARIN Deaggregation factor:                                     2.03
Prefixes being announced from the ARIN address blocks:           184168
    Unique aggregates announced from the ARIN address blocks:     87343
ARIN Region origin ASes present in the Internet Routing Table:    16513
    ARIN Prefixes per ASN:                                        11.15
ARIN Region origin ASes announcing only one prefix:                5978
ARIN Region transit ASes present in the Internet Routing Table:    1718
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:     845
Number of ARIN addresses announced to Internet:              1102537920
    Equivalent to 65 /8s, 183 /16s and 100 /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:                    137548
    Total RIPE prefixes after maximum aggregation:                68566
    RIPE Deaggregation factor:                                     2.01
Prefixes being announced from the RIPE address blocks:           145239
    Unique aggregates announced from the RIPE address blocks:     90032
RIPE Region origin ASes present in the Internet Routing Table:    18019
    RIPE Prefixes per ASN:                                         8.06
RIPE Region origin ASes announcing only one prefix:                7988
RIPE Region transit ASes present in the Internet Routing Table:    2978
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:    4243
Number of RIPE addresses announced to Internet:               701837696
    Equivalent to 41 /8s, 213 /16s and 49 /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:                   60552
    Total LACNIC prefixes after maximum aggregation:              11790
    LACNIC Deaggregation factor:                                   5.14
Prefixes being announced from the LACNIC address blocks:          73085
    Unique aggregates announced from the LACNIC address blocks:   34042
LACNIC Region origin ASes present in the Internet Routing Table:   2463
    LACNIC Prefixes per ASN:                                      29.67
LACNIC Region origin ASes announcing only one prefix:               600
LACNIC Region transit ASes present in the Internet Routing Table:   540
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        22
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  2100
Number of LACNIC addresses announced to Internet:             170322432
    Equivalent to 10 /8s, 38 /16s and 234 /24s
    Percentage of available LACNIC address space announced:       101.5

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:                  13364
    Total AfriNIC prefixes after maximum aggregation:              3103
    AfriNIC Deaggregation factor:                                  4.31
Prefixes being announced from the AfriNIC address blocks:         15666
    Unique aggregates announced from the AfriNIC address blocks:   6188
AfriNIC Region origin ASes present in the Internet Routing Table:   731
    AfriNIC Prefixes per ASN:                                     21.43
AfriNIC Region origin ASes announcing only one prefix:              192
AfriNIC Region transit ASes present in the Internet Routing Table:  169
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:  173
Number of AfriNIC addresses announced to Internet:             70993920
    Equivalent to 4 /8s, 59 /16s and 72 /24s
    Percentage of available AfriNIC address space announced:       70.5

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     3025        343         151   TPG Telecom Limited
 4766     2996      11134         987   Korea Telecom
17974     2721        914          96   PT Telekomunikasi Indonesia
 4755     2066        431         231   TATA Communications formerly 
 9829     2034       1408         299   National Internet Backbone
 9808     1671       8639          18   Guangdong Mobile Communicatio
 4808     1560       2269         497   CNCGROUP IP network China169 
 9583     1499        120         560   Sify Limited
 9498     1403        335         112   BHARTI Airtel Ltd.

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     2583      10693         531   Level 3 Communications, Inc.
 6389     2509       3687          42   BellSouth.net Inc.
18566     2213        394         277   MegaPath Corporation
20115     1887       1897         400   Charter Communications
 6983     1699        849         238   EarthLink, Inc.
30036     1648        329         361   Mediacom Communications Corp
 4323     1578       1013         395   tw telecom holdings, inc.
  209     1482       4326        1233   Qwest Communications Company,
  701     1392      11415         665   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     2232        886        1607   Akamai International B.V.
34984     1918        320         406   TELLCOM ILETISIM HIZMETLERI A
 8402     1199        544          15   OJSC "Vimpelcom"
 8551     1086        376          53   Bezeq International-Ltd
13188     1074         97          79   TOV "Bank-Inform"
12479     1044        966          82   France Telecom Espana SA
31148     1035         47          41   Freenet Ltd.
 9198      963        349          25   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        540         156   Telmex Colombia S.A.
 8151     2107       3342         498   Uninet S.A. de C.V.
 7303     1573        940         235   Telecom Argentina S.A.
 6503     1381        437          57   Axtel, S.A.B. de C.V.
28573     1332       2175         119   NET Serviços de Comunicação S
11830     1094        364          24   Instituto Costarricense de El
 6147     1042        376          34   Telefonica del Peru S.A.A.
26615     1004       2325          34   Tim Celular S.A.
 7738      993       1882          41   Telemar Norte Leste S.A.
 3816      962        450         185   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     1144       1470          14   TE-AS
24863     1087        409          38   Link Egypt (Link.NET)
37611      575         39          41   Afrihost-Brevis Computer Serv
36903      522        263         102   Office National des Postes et
36992      438       1229          32   ETISALAT MISR
37492      324        192          74   Orange Tunisie
29571      244         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     5599       4192          76   China Education and Research 
10620     3400        540         156   Telmex Colombia S.A.
22773     3245       2964         143   Cox Communications Inc.
 7545     3025        343         151   TPG Telecom Limited
 4766     2996      11134         987   Korea Telecom
17974     2721        914          96   PT Telekomunikasi Indonesia
 3356     2583      10693         531   Level 3 Communications, Inc.
 6389     2509       3687          42   BellSouth.net Inc.
39891     2473        129           7   SaudiNet, Saudi Telecom Compa
20940     2232        886        1607   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        3244      Telmex Colombia S.A.
22773      3245        3102      Cox Communications Inc.
 7545      3025        2874      TPG Telecom Limited
17974      2721        2625      PT Telekomunikasi Indonesia
 6389      2509        2467      BellSouth.net Inc.
39891      2473        2466      SaudiNet, Saudi Telecom Compa
 3356      2583        2052      Level 3 Communications, Inc.
 4766      2996        2009      Korea Telecom
18566      2213        1936      MegaPath Corporation
 4755      2066        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
 8655   UNALLOCATED  1.3.3.0/24            4134       No.31,Jin-rong Stree
30662   UNALLOCATED  8.2.129.0/24          3356       Level 3 Communicatio
47092   UNALLOCATED  8.8.204.0/24         16410       The Reynolds and Rey
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

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      /11:98      /12:263     
/13:506     /14:1009    /15:1763    /16:12924   /17:7365    /18:12572   
/19:25693   /20:37644   /21:39814   /22:62856   /23:54554   /24:312786  
/25:549     /26:566     /27:384     /28:16      /29:16      /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     2115          2213      MegaPath Corporation
 6389     1553          2509      BellSouth.net Inc.
30036     1465          1648      Mediacom Communications Corp
 6983     1346          1699      EarthLink, Inc.
10620     1279          3400      Telmex Colombia S.A.
34984     1206          1918      TELLCOM ILETISIM HIZMETLERI A
11492     1132          1217      CABLE ONE, INC.
31148      954          1035      Freenet Ltd.

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

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

   1:1649      2:701       4:100       5:1991      6:25        8:1414   
  12:1805     13:27       14:1560     15:23       16:2        17:57     
  18:19       20:48       23:1317     24:1736     27:2142     31:1685   
  32:54       33:2        34:4        35:5        36:185      37:2274   
  38:1115     39:20       40:74       41:2926     42:364      43:1616   
  44:36       45:1526     46:2325     47:63       49:1038     50:815    
  52:33       54:93       55:8        56:8        57:44       58:1406   
  59:826      60:509      61:1765     62:1404     63:1906     64:4402   
  65:2200     66:4040     67:2126     68:1085     69:3269     70:1018   
  71:463      72:1991     74:2561     75:357      76:416      77:1393   
  78:1253     79:801      80:1344     81:1348     82:838      83:648    
  84:790      85:1482     86:459      87:1044     88:538      89:1930   
  90:168      91:5992     92:860      93:2286     94:2184     95:2249   
  96:474      97:352      98:910      99:47      100:80      101:849    
 103:8938    104:2185    105:73      106:363     107:1104    108:632    
 109:2105    110:1225    111:1533    112:866     113:1107    114:874    
 115:1496    116:1482    117:1185    118:1974    119:1495    120:502    
 121:1161    122:2253    123:1870    124:1562    125:1734    128:701    
 129:368     130:387     131:1260    132:593     133:165     134:439    
 135:119     136:345     137:312     138:1484    139:191     140:246    
 141:455     142:637     143:699     144:571     145:148     146:787    
 147:608     148:1286    149:440     150:621     151:810     152:568    
 153:266     154:471     155:909     156:434     157:444     158:342    
 159:1055    160:409     161:680     162:2213    163:494     164:705    
 165:1084    166:312     167:885     168:1311    169:548     170:1505   
 171:261     172:356     173:1551    174:720     175:752     176:1499   
 177:4008    178:2332    179:1050    180:2033    181:1622    182:1865   
 183:666     184:771     185:4976    186:3037    187:1876    188:2065   
 189:1694    190:7522    191:1212    192:8685    193:5711    194:4304   
 195:3690    196:2251    197:1214    198:5496    199:5551    200:6677   
 201:3508    202:9879    203:9287    204:4566    205:2744    206:3024   
 207:3009    208:4000    209:3971    210:3746    211:2008    212:2627   
 213:2178    214:830     215:72      216:5775    217:1881    218:741    
 219:544     220:1624    221:807     222:640     223:860    

End of report


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