Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri May 27 18:10:34 UTC 2016


This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.

The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG,
SAFNOG, PaNOG, SdNOG, BJNOG, CaribNOG and the RIPE Routing WG.

Daily listings are sent to bgp-stats at lists.apnic.net

For historical data, please see http://thyme.rand.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.

Routing Table Report   04:00 +10GMT Sat 28 May, 2016

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

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

BGP routing table entries examined:                              594503
    Prefixes after maximum aggregation (per Origin AS):          217631
    Deaggregation factor:                                          2.73
    Unique aggregates announced (without unneeded subnets):      291513
Total ASes present in the Internet Routing Table:                 53890
    Prefixes per ASN:                                             11.03
Origin-only ASes present in the Internet Routing Table:           36576
Origin ASes announcing only one prefix:                           15650
Transit ASes present in the Internet Routing Table:                6452
Transit-only ASes present in the Internet Routing Table:            170
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      54
    Max AS path prepend of ASN ( 55644)                              51
Prefixes from unregistered ASNs in the Routing Table:              1029
    Unregistered ASNs in the Routing Table:                         368
Number of 32-bit ASNs allocated by the RIRs:                      14035
Number of 32-bit ASNs visible in the Routing Table:               10862
Prefixes from 32-bit ASNs in the Routing Table:                   42481
Number of bogon 32-bit ASNs visible in the Routing Table:             7
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            362
Number of addresses announced to Internet:                   2808989828
    Equivalent to 167 /8s, 109 /16s and 200 /24s
    Percentage of available address space announced:               75.9
    Percentage of allocated address space announced:               75.9
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               98.2
Total number of prefixes smaller than registry allocations:      193849

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

Prefixes being announced by APNIC Region ASes:                   152413
    Total APNIC prefixes after maximum aggregation:               42506
    APNIC Deaggregation factor:                                    3.59
Prefixes being announced from the APNIC address blocks:          163652
    Unique aggregates announced from the APNIC address blocks:    67122
APNIC Region origin ASes present in the Internet Routing Table:    5193
    APNIC Prefixes per ASN:                                       31.51
APNIC Region origin ASes announcing only one prefix:               1187
APNIC Region transit ASes present in the Internet Routing Table:    919
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         54
Number of APNIC region 32-bit ASNs visible in the Routing Table:   2096
Number of APNIC addresses announced to Internet:              754412868
    Equivalent to 44 /8s, 247 /16s and 109 /24s
    Percentage of available APNIC address space announced:         88.2

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:                    181275
    Total ARIN prefixes after maximum aggregation:                89149
    ARIN Deaggregation factor:                                     2.03
Prefixes being announced from the ARIN address blocks:           186737
    Unique aggregates announced from the ARIN address blocks:     88167
ARIN Region origin ASes present in the Internet Routing Table:    16356
    ARIN Prefixes per ASN:                                        11.42
ARIN Region origin ASes announcing only one prefix:                5828
ARIN Region transit ASes present in the Internet Routing Table:    1715
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          23
Number of ARIN region 32-bit ASNs visible in the Routing Table:    1237
Number of ARIN addresses announced to Internet:              1099642048
    Equivalent to 65 /8s, 139 /16s and 52 /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, 393216-397212
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  23/8,  24/8,  26/8,  28/8,
                        29/8,  30/8,  32/8,  33/8,  34/8,  35/8,  38/8,
                        40/8,  44/8,  45/8,  47/8,  48/8,  50/8,  52/8,
                        53/8,  54/8,  55/8,  56/8,  57/8,  63/8,  64/8,
                        65/8,  66/8,  67/8,  68/8,  69/8,  70/8,  71/8,
                        72/8,  73/8,  74/8,  75/8,  76/8,  96/8,  97/8,
                        98/8,  99/8, 100/8, 104/8, 107/8, 108/8, 128/8,
                       129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
                       137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
                       146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
                       157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
                       165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
                       173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8,
                       205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8,
                       216/8,

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                    142652
    Total RIPE prefixes after maximum aggregation:                70520
    RIPE Deaggregation factor:                                     2.02
Prefixes being announced from the RIPE address blocks:           151964
    Unique aggregates announced from the RIPE address blocks:     94043
RIPE Region origin ASes present in the Internet Routing Table:    18075
    RIPE Prefixes per ASN:                                         8.41
RIPE Region origin ASes announcing only one prefix:                7878
RIPE Region transit ASes present in the Internet Routing Table:    3012
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          36
Number of RIPE region 32-bit ASNs visible in the Routing Table:    4806
Number of RIPE addresses announced to Internet:               704609664
    Equivalent to 41 /8s, 255 /16s and 125 /24s
    Percentage of available RIPE address space announced:         102.4

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
                       40960-45055, 47104-52223, 56320-58367
                       59392-61439, 61952-62463, 196608-204287
RIPE Address Blocks      2/8,   5/8,  25/8,  31/8,  37/8,  46/8,  51/8,
                        62/8,  77/8,  78/8,  79/8,  80/8,  81/8,  82/8,
                        83/8,  84/8,  85/8,  86/8,  87/8,  88/8,  89/8,
                        90/8,  91/8,  92/8,  93/8,  94/8,  95/8, 109/8,
                       141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
                       193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                   61535
    Total LACNIC prefixes after maximum aggregation:              12202
    LACNIC Deaggregation factor:                                   5.04
Prefixes being announced from the LACNIC address blocks:          75875
    Unique aggregates announced from the LACNIC address blocks:   36025
LACNIC Region origin ASes present in the Internet Routing Table:   2473
    LACNIC Prefixes per ASN:                                      30.68
LACNIC Region origin ASes announcing only one prefix:               576
LACNIC Region transit ASes present in the Internet Routing Table:   567
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:  2506
Number of LACNIC addresses announced to Internet:             171169024
    Equivalent to 10 /8s, 51 /16s and 213 /24s
    Percentage of available LACNIC address space announced:       102.0

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:                  14037
    Total AfriNIC prefixes after maximum aggregation:              3217
    AfriNIC Deaggregation factor:                                  4.36
Prefixes being announced from the AfriNIC address blocks:         15913
    Unique aggregates announced from the AfriNIC address blocks:   5825
AfriNIC Region origin ASes present in the Internet Routing Table:   736
    AfriNIC Prefixes per ASN:                                     21.62
AfriNIC Region origin ASes announcing only one prefix:              181
AfriNIC Region transit ASes present in the Internet Routing Table:  167
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  217
Number of AfriNIC addresses announced to Internet:             78714880
    Equivalent to 4 /8s, 177 /16s and 24 /24s
    Percentage of available AfriNIC address space announced:       78.2

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     5559       4192          76   China Education and Research 
 7545     3342        356         223   TPG Telecom Limited
 4766     3177      11144        1123   Korea Telecom
17974     2946        914          96   PT Telekomunikasi Indonesia
 9829     2522       1479         497   National Internet Backbone
 9808     2096       8781          40   Guangdong Mobile Communicatio
 4755     2092        431         241   TATA Communications formerly 
 4808     1701       2301         552   CNCGROUP IP network China169 
 9583     1510        122         556   Sify Limited
38197     1509         94         218   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     3331       2947         139   Cox Communications Inc.
 6389     2298       3671          41   BellSouth.net Inc.
18566     2195        394         275   MegaPath Corporation
20115     1923       1938         403   Charter Communications
  209     1695       4971         773   Qwest Communications Company,
30036     1692        336         415   Mediacom Communications Corp
 6983     1690        849         232   EarthLink, Inc.
 4323     1512        984         372   tw telecom holdings, inc.
  701     1297      10718         705   MCI Communications Services, 
11492     1283        234         584   CABLE ONE, INC.

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

RIPE Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
39891     2901        151          11   SaudiNet, Saudi Telecom Compa
20940     2595       1002        1863   Akamai International B.V.
34984     1965        326         358   TELLCOM ILETISIM HIZMETLERI A
12479     1229        998          88   France Telecom Espana SA
 8551     1220        376          55   Bezeq International-Ltd
 6849     1148        355          21   JSC "Ukrtelecom"
 8402     1124        544          15   OJSC "Vimpelcom"
13188     1078         98          68   TOV "Bank-Inform"
31148     1024         47          44   Freenet Ltd.
 9198      936        352          26   JSC Kazakhtelecom

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

LACNIC Region per AS prefix count summary
-----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
10620     3472        541         155   Telmex Colombia S.A.
 8151     2258       3425         576   Uninet S.A. de C.V.
 7303     1511        940         234   Telecom Argentina S.A.
11830     1476        368          51   Instituto Costarricense de El
 6503     1473        437          56   Axtel, S.A.B. de C.V.
 6147     1112        377          27   Telefonica del Peru S.A.A.
26615     1007       2325          34   Tim Celular S.A.
 3816     1002        479         175   COLOMBIA TELECOMUNICACIONES S
 7738      994       1882          40   Telemar Norte Leste S.A.
11172      907        125          77   Alestra, S. de R.L. de C.V.

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

AfriNIC Region per AS prefix count summary
------------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
24863     1087        402          44   Link Egypt (Link.NET)
37611      639         48           2   Afrihost-Brevis Computer Serv
36903      626        315         103   Office National des Postes et
36992      509       1359          27   ETISALAT MISR
 8452      489       1472          15   TE-AS
37492      395        234          68   Orange Tunisie
29571      301         37          13   Cote d'Ivoire Telecom
24835      294        466          14   Vodafone Data
15399      285         35          10   Wananchi Group (Kenya) Limite
 2018      257        327          74   TENET (The UNINET Project)

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     5559       4192          76   China Education and Research 
10620     3472        541         155   Telmex Colombia S.A.
 7545     3342        356         223   TPG Telecom Limited
22773     3331       2947         139   Cox Communications Inc.
 4766     3177      11144        1123   Korea Telecom
17974     2946        914          96   PT Telekomunikasi Indonesia
39891     2901        151          11   SaudiNet, Saudi Telecom Compa
20940     2595       1002        1863   Akamai International B.V.
 9829     2522       1479         497   National Internet Backbone
 6389     2298       3671          41   BellSouth.net Inc.

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

Global Per AS Maximum Aggr summary
----------------------------------

  ASN   No of nets  Net Savings Description
10620      3472        3317      Telmex Colombia S.A.
22773      3331        3192      Cox Communications Inc.
 7545      3342        3119      TPG Telecom Limited
39891      2901        2890      SaudiNet, Saudi Telecom Compa
17974      2946        2850      PT Telekomunikasi Indonesia
 6389      2298        2257      BellSouth.net Inc.
 9808      2096        2056      Guangdong Mobile Communicatio
 4766      3177        2054      Korea Telecom
 9829      2522        2025      National Internet Backbone
18566      2195        1920      MegaPath Corporation

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

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

Bad AS  Designation  Network              Transit AS  Description
65001   PRIVATE      5.143.176.0/20       15468       OJSC Rostelecom
30662   UNALLOCATED  8.2.129.0/24          3356       Level 3 Communicatio
53506   UNALLOCATED  8.17.102.0/23         3356       Level 3 Communicatio
46467   UNALLOCATED  8.19.192.0/24        46887       Lightower Fiber Netw
16589   UNALLOCATED  8.20.247.0/24        35838       CCANET Limited
16589   UNALLOCATED  8.26.56.0/24         35838       CCANET Limited
46473   UNALLOCATED  8.27.122.0/24        12180       Internap Network Ser
46473   UNALLOCATED  8.27.124.0/24        12180       Internap Network Ser
27205   UNALLOCATED  8.38.16.0/21          3356       Level 3 Communicatio
27205   UNALLOCATED  8.38.16.0/22         32787       Prolexic Technologie

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
27.100.7.0/24        56096     >>UNKNOWN<<
41.73.1.0/24         37004     >>UNKNOWN<<
41.73.2.0/24         37004     >>UNKNOWN<<
41.73.3.0/24         37004     >>UNKNOWN<<
41.73.4.0/24         37004     >>UNKNOWN<<
41.73.5.0/24         37004     >>UNKNOWN<<
41.73.6.0/24         37004     >>UNKNOWN<<
41.73.7.0/24         37004     >>UNKNOWN<<

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

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:16       /9:13      /10:36      /11:101     /12:266     
/13:514     /14:1036    /15:1763    /16:13043   /17:7609    /18:12712   
/19:25937   /20:38001   /21:39713   /22:65681   /23:57477   /24:328881  
/25:560     /26:598     /27:419     /28:48      /29:32      /30:14      
/31:1       /32:32      

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

  ASN   No of nets  Total ann.   Description
39891     2664          2901      SaudiNet, Saudi Telecom Compa
22773     2557          3331      Cox Communications Inc.
18566     2097          2195      MegaPath Corporation
30036     1507          1692      Mediacom Communications Corp
 6389     1476          2298      BellSouth.net Inc.
10620     1376          3472      Telmex Colombia S.A.
 6983     1340          1690      EarthLink, Inc.
34984     1249          1965      TELLCOM ILETISIM HIZMETLERI A
11492     1186          1283      CABLE ONE, INC.
 6849      968          1148      JSC "Ukrtelecom"

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

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

   1:1575      2:748       4:20        5:2065      6:31        8:962    
  12:1779     13:39       14:1699     15:45       16:2        17:84     
  18:90       20:48       22:1        23:1514     24:1763     27:2275   
  31:1767     32:59       33:2        34:2        35:5        36:292    
  37:2231     38:1221     39:25       40:91       41:2826     42:397    
  43:1724     44:43       45:1938     46:2493     47:78       49:1168   
  50:875      51:33       52:195      54:331      55:7        56:7      
  57:42       58:1529     59:886      60:344      61:1823     62:1499   
  63:1936     64:4445     65:2164     66:4255     67:2193     68:1093   
  69:3293     70:1156     71:474      72:2006     74:2536     75:346    
  76:349      77:1375     78:1298     79:845      80:1274     81:1352   
  82:948      83:698      84:831      85:1578     86:480      87:1057   
  88:563      89:2000     90:172      91:6036     92:914      93:2323   
  94:2385     95:2314     96:499      97:359      98:937      99:46     
 100:75      101:1044    103:10902   104:2448    105:125     106:405    
 107:1181    108:669     109:2195    110:1241    111:1639    112:1012   
 113:1169    114:1060    115:1613    116:1580    117:1439    118:2065   
 119:1626    120:930     121:1178    122:2178    123:2023    124:1576   
 125:1730    128:735     129:400     130:418     131:1321    132:620    
 133:176     134:455     135:127     136:373     137:348     138:1729   
 139:274     140:543     141:459     142:639     143:896     144:696    
 145:159     146:872     147:631     148:1481    149:507     150:645    
 151:883     152:618     153:285     154:632     155:934     156:503    
 157:444     158:337     159:1119    160:488     161:715     162:2321   
 163:548     164:884     165:1033    166:320     167:1147    168:1873   
 169:662     170:1612    171:263     172:571     173:1643    174:746    
 175:723     176:1744    177:3927    178:2209    179:1129    180:2042   
 181:1772    182:1862    183:980     184:807     185:6515    186:2964   
 187:2120    188:2116    189:1689    190:7681    191:1209    192:8933   
 193:5743    194:4384    195:3763    196:1673    197:1073    198:5556   
 199:5700    200:6937    201:3744    202:10177   203:9643    204:4519   
 205:2728    206:2986    207:3135    208:4053    209:3873    210:3882   
 211:2049    212:2676    213:2228    214:852     215:71      216:5793   
 217:1967    218:797     219:607     220:1689    221:865     222:668    
 223:1237   

End of report


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