Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Dec 25 18:11:52 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 26 Dec, 2015

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

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

BGP routing table entries examined:                              576265
    Prefixes after maximum aggregation (per Origin AS):          213285
    Deaggregation factor:                                          2.70
    Unique aggregates announced (without unneeded subnets):      280854
Total ASes present in the Internet Routing Table:                 52365
    Prefixes per ASN:                                             11.00
Origin-only ASes present in the Internet Routing Table:           36632
Origin ASes announcing only one prefix:                           15883
Transit ASes present in the Internet Routing Table:                6400
Transit-only ASes present in the Internet Routing Table:            169
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:              1012
    Unregistered ASNs in the Routing Table:                         362
Number of 32-bit ASNs allocated by the RIRs:                      12218
Number of 32-bit ASNs visible in the Routing Table:                9333
Prefixes from 32-bit ASNs in the Routing Table:                   35630
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:            393
Number of addresses announced to Internet:                   2802731460
    Equivalent to 167 /8s, 14 /16s and 73 /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:               97.9
Total number of prefixes smaller than registry allocations:      189204

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

Prefixes being announced by APNIC Region ASes:                   146560
    Total APNIC prefixes after maximum aggregation:               40490
    APNIC Deaggregation factor:                                    3.62
Prefixes being announced from the APNIC address blocks:          155240
    Unique aggregates announced from the APNIC address blocks:    62692
APNIC Region origin ASes present in the Internet Routing Table:    5125
    APNIC Prefixes per ASN:                                       30.29
APNIC Region origin ASes announcing only one prefix:               1198
APNIC Region transit ASes present in the Internet Routing Table:    890
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:   1770
Number of APNIC addresses announced to Internet:              756202372
    Equivalent to 45 /8s, 18 /16s and 187 /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:                    181143
    Total ARIN prefixes after maximum aggregation:                88980
    ARIN Deaggregation factor:                                     2.04
Prefixes being announced from the ARIN address blocks:           184603
    Unique aggregates announced from the ARIN address blocks:     86550
ARIN Region origin ASes present in the Internet Routing Table:    16470
    ARIN Prefixes per ASN:                                        11.21
ARIN Region origin ASes announcing only one prefix:                5932
ARIN Region transit ASes present in the Internet Routing Table:    1727
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:     905
Number of ARIN addresses announced to Internet:              1101780160
    Equivalent to 65 /8s, 171 /16s and 212 /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:                    138551
    Total RIPE prefixes after maximum aggregation:                68822
    RIPE Deaggregation factor:                                     2.01
Prefixes being announced from the RIPE address blocks:           146446
    Unique aggregates announced from the RIPE address blocks:     90653
RIPE Region origin ASes present in the Internet Routing Table:    18042
    RIPE Prefixes per ASN:                                         8.12
RIPE Region origin ASes announcing only one prefix:                7965
RIPE Region transit ASes present in the Internet Routing Table:    2991
Average RIPE Region AS path length visible:                         4.9
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    4325
Number of RIPE addresses announced to Internet:               702356864
    Equivalent to 41 /8s, 221 /16s and 29 /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:                   60646
    Total LACNIC prefixes after maximum aggregation:              11836
    LACNIC Deaggregation factor:                                   5.12
Prefixes being announced from the LACNIC address blocks:          73576
    Unique aggregates announced from the LACNIC address blocks:   34301
LACNIC Region origin ASes present in the Internet Routing Table:   2463
    LACNIC Prefixes per ASN:                                      29.87
LACNIC Region origin ASes announcing only one prefix:               595
LACNIC Region transit ASes present in the Internet Routing Table:   542
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        24
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  2158
Number of LACNIC addresses announced to Internet:             170689536
    Equivalent to 10 /8s, 44 /16s and 132 /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:                  13649
    Total AfriNIC prefixes after maximum aggregation:              3115
    AfriNIC Deaggregation factor:                                  4.38
Prefixes being announced from the AfriNIC address blocks:         16007
    Unique aggregates announced from the AfriNIC address blocks:   6324
AfriNIC Region origin ASes present in the Internet Routing Table:   736
    AfriNIC Prefixes per ASN:                                     21.75
AfriNIC Region origin ASes announcing only one prefix:              193
AfriNIC Region transit ASes present in the Internet Routing Table:  167
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  175
Number of AfriNIC addresses announced to Internet:             71343360
    Equivalent to 4 /8s, 64 /16s and 157 /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     5600       4192          76   China Education and Research 
 7545     3065        346         158   TPG Telecom Limited
 4766     3018      11136        1000   Korea Telecom
17974     2854        914          96   PT Telekomunikasi Indonesia
 9829     2221       1416         374   National Internet Backbone
 4755     2068        431         233   TATA Communications formerly 
 9808     1709       8639          18   Guangdong Mobile Communicatio
 4808     1590       2275         505   CNCGROUP IP network China169 
 9583     1508        121         557   Sify Limited
38197     1416         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     3272       2964         145   Cox Communications Inc.
 3356     2594      10690         532   Level 3 Communications, Inc.
 6389     2508       3687          42   BellSouth.net Inc.
18566     2211        394         277   MegaPath Corporation
20115     1908       1907         403   Charter Communications
 6983     1699        849         238   EarthLink, Inc.
30036     1668        332         329   Mediacom Communications Corp
 4323     1578       1021         393   tw telecom holdings, inc.
  209     1464       4338        1228   Qwest Communications Company,
  701     1381      11445         652   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     2290        909        1642   Akamai International B.V.
34984     1933        321         410   TELLCOM ILETISIM HIZMETLERI A
 8551     1435        376          44   Bezeq International-Ltd
 8402     1087        544          15   OJSC "Vimpelcom"
13188     1075         97          79   TOV "Bank-Inform"
12479     1070        965          80   France Telecom Espana SA
31148     1042         47          41   Freenet Ltd.
 9198      954        349          26   JSC Kazakhtelecom
 6830      894       2712         464   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     3412        541         120   Telmex Colombia S.A.
 8151     2121       3364         490   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     1205       2174         131   NET Serviços de Comunicação S
11830     1096        366          25   Instituto Costarricense de El
 6147     1037        376          34   Telefonica del Peru S.A.A.
 7738      994       1882          41   Telemar Norte Leste S.A.
 3816      977        460         187   COLOMBIA TELECOMUNICACIONES S
26615      956       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     1208       1470          14   TE-AS
24863     1167        405          37   Link Egypt (Link.NET)
37611      583         39          40   Afrihost-Brevis Computer Serv
36903      552        278         110   Office National des Postes et
36992      446       1233          33   ETISALAT MISR
37492      328        192          67   Orange Tunisie
24835      326        146          12   Vodafone Data
29571      264         21          11   Cote d'Ivoire Telecom
 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     3412        541         120   Telmex Colombia S.A.
22773     3272       2964         145   Cox Communications Inc.
 7545     3065        346         158   TPG Telecom Limited
 4766     3018      11136        1000   Korea Telecom
17974     2854        914          96   PT Telekomunikasi Indonesia
 3356     2594      10690         532   Level 3 Communications, Inc.
 6389     2508       3687          42   BellSouth.net Inc.
39891     2473        129           7   SaudiNet, Saudi Telecom Compa
20940     2290        909        1642   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      3412        3292      Telmex Colombia S.A.
22773      3272        3127      Cox Communications Inc.
 7545      3065        2907      TPG Telecom Limited
17974      2854        2758      PT Telekomunikasi Indonesia
 6389      2508        2466      BellSouth.net Inc.
39891      2473        2466      SaudiNet, Saudi Telecom Compa
 3356      2594        2062      Level 3 Communications, Inc.
 4766      3018        2018      Korea Telecom
18566      2211        1934      MegaPath Corporation
 9829      2221        1847      National Internet Backbone

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
37.46.10.0/23        36351     SoftLayer Technologies Inc.
37.46.14.0/24        36351     SoftLayer Technologies Inc.
37.46.15.0/24        36351     SoftLayer Technologies Inc.
41.73.1.0/24         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      /11:100     /12:265     
/13:507     /14:1016    /15:1773    /16:12983   /17:7413    /18:12626   
/19:25571   /20:37724   /21:39995   /22:63678   /23:55100   /24:315883  
/25:547     /26:576     /27:381     /28:16      /29:16      /30:9       
/31:0       /32:21      

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

  ASN   No of nets  Total ann.   Description
22773     2460          3272      Cox Communications Inc.
39891     2432          2473      SaudiNet, Saudi Telecom Compa
18566     2113          2211      MegaPath Corporation
 6389     1553          2508      BellSouth.net Inc.
30036     1485          1668      Mediacom Communications Corp
 6983     1345          1699      EarthLink, Inc.
10620     1290          3412      Telmex Colombia S.A.
34984     1221          1933      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)
----------------------------------------------

   1:1639      2:655       4:100       5:2072      6:26        8:1420   
  12:1797     13:30       14:1594     15:23       16:2        17:57     
  18:19       20:48       22:1        23:1314     24:1737     27:2157   
  31:1716     32:54       33:2        34:4        35:5        36:197    
  37:2217     38:1140     39:22       40:76       41:3013     42:368    
  43:1619     44:36       45:1582     46:2374     47:63       49:1070   
  50:823      51:3        52:36       54:96       55:8        56:8      
  57:44       58:1436     59:840      60:523      61:1770     62:1413   
  63:1909     64:4447     65:2177     66:4075     67:2136     68:1092   
  69:3270     70:1041     71:461      72:1979     74:2559     75:358    
  76:418      77:1381     78:1269     79:821      80:1312     81:1347   
  82:859      83:669      84:775      85:1524     86:457      87:1040   
  88:552      89:1935     90:153      91:5963     92:862      93:2308   
  94:2231     95:2248     96:470      97:353      98:955      99:45     
 100:79      101:871     103:9243    104:2165    105:89      106:360    
 107:1099    108:639     109:2376    110:1247    111:1550    112:887    
 113:1193    114:916     115:1539    116:1516    117:1609    118:2029   
 119:1520    120:518     121:1165    122:2250    123:1877    124:1579   
 125:1741    128:673     129:357     130:422     131:1273    132:593    
 133:169     134:453     135:117     136:339     137:310     138:1599   
 139:199     140:248     141:464     142:637     143:738     144:578    
 145:150     146:824     147:609     148:1425    149:459     150:625    
 151:809     152:566     153:270     154:481     155:908     156:445    
 157:411     158:349     159:1065    160:421     161:695     162:2221   
 163:508     164:712     165:1100    166:315     167:921     168:1344   
 169:560     170:1483    171:263     172:369     173:1576    174:715    
 175:769     176:1503    177:3996    178:2221    179:1063    180:2071   
 181:1632    182:1911    183:664     184:763     185:5252    186:3015   
 187:1898    188:2124    189:1721    190:7579    191:1257    192:8747   
 193:5727    194:4315    195:3711    196:2255    197:1120    198:5498   
 199:5517    200:6715    201:3491    202:9915    203:9290    204:4569   
 205:2738    206:2963    207:3020    208:4012    209:3977    210:3763   
 211:2019    212:2623    213:2186    214:814     215:73      216:5707   
 217:1887    218:741     219:555     220:1639    221:807     222:645    
 223:880    

End of report



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