[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Apr 29 18:11:19 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 30 Apr, 2016

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

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

BGP routing table entries examined:                              593320
    Prefixes after maximum aggregation (per Origin AS):          217357
    Deaggregation factor:                                          2.73
    Unique aggregates announced (without unneeded subnets):      290159
Total ASes present in the Internet Routing Table:                 53574
    Prefixes per ASN:                                             11.07
Origin-only ASes present in the Internet Routing Table:           36587
Origin ASes announcing only one prefix:                           15699
Transit ASes present in the Internet Routing Table:                6432
Transit-only ASes present in the Internet Routing Table:            172
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      45
    Max AS path prepend of ASN ( 40285)                              42
Prefixes from unregistered ASNs in the Routing Table:              1012
    Unregistered ASNs in the Routing Table:                         366
Number of 32-bit ASNs allocated by the RIRs:                      13668
Number of 32-bit ASNs visible in the Routing Table:               10555
Prefixes from 32-bit ASNs in the Routing Table:                   41431
Number of bogon 32-bit ASNs visible in the Routing Table:            13
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            389
Number of addresses announced to Internet:                   2810793284
    Equivalent to 167 /8s, 137 /16s and 77 /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:               98.1
Total number of prefixes smaller than registry allocations:      193746

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

Prefixes being announced by APNIC Region ASes:                   151960
    Total APNIC prefixes after maximum aggregation:               42211
    APNIC Deaggregation factor:                                    3.60
Prefixes being announced from the APNIC address blocks:          162661
    Unique aggregates announced from the APNIC address blocks:    66214
APNIC Region origin ASes present in the Internet Routing Table:    5164
    APNIC Prefixes per ASN:                                       31.50
APNIC Region origin ASes announcing only one prefix:               1184
APNIC Region transit ASes present in the Internet Routing Table:    913
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         39
Number of APNIC region 32-bit ASNs visible in the Routing Table:   2033
Number of APNIC addresses announced to Internet:              754267460
    Equivalent to 44 /8s, 245 /16s and 53 /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:                    180907
    Total ARIN prefixes after maximum aggregation:                89400
    ARIN Deaggregation factor:                                     2.02
Prefixes being announced from the ARIN address blocks:           186041
    Unique aggregates announced from the ARIN address blocks:     88502
ARIN Region origin ASes present in the Internet Routing Table:    16367
    ARIN Prefixes per ASN:                                        11.37
ARIN Region origin ASes announcing only one prefix:                5842
ARIN Region transit ASes present in the Internet Routing Table:    1713
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          45
Number of ARIN region 32-bit ASNs visible in the Routing Table:    1161
Number of ARIN addresses announced to Internet:              1101677376
    Equivalent to 65 /8s, 170 /16s and 67 /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:                    143000
    Total RIPE prefixes after maximum aggregation:                70238
    RIPE Deaggregation factor:                                     2.04
Prefixes being announced from the RIPE address blocks:           152054
    Unique aggregates announced from the RIPE address blocks:     93146
RIPE Region origin ASes present in the Internet Routing Table:    18078
    RIPE Prefixes per ASN:                                         8.41
RIPE Region origin ASes announcing only one prefix:                7914
RIPE Region transit ASes present in the Internet Routing Table:    3001
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    4709
Number of RIPE addresses announced to Internet:               704653696
    Equivalent to 42 /8s, 0 /16s and 41 /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:                   61721
    Total LACNIC prefixes after maximum aggregation:              12271
    LACNIC Deaggregation factor:                                   5.03
Prefixes being announced from the LACNIC address blocks:          76026
    Unique aggregates announced from the LACNIC address blocks:   36089
LACNIC Region origin ASes present in the Internet Routing Table:   2474
    LACNIC Prefixes per ASN:                                      30.73
LACNIC Region origin ASes announcing only one prefix:               578
LACNIC Region transit ASes present in the Internet Routing Table:   562
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:  2442
Number of LACNIC addresses announced to Internet:             171320128
    Equivalent to 10 /8s, 54 /16s and 35 /24s
    Percentage of available LACNIC address space announced:       102.1

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:                  14187
    Total AfriNIC prefixes after maximum aggregation:              3196
    AfriNIC Deaggregation factor:                                  4.44
Prefixes being announced from the AfriNIC address blocks:         16149
    Unique aggregates announced from the AfriNIC address blocks:   5855
AfriNIC Region origin ASes present in the Internet Routing Table:   738
    AfriNIC Prefixes per ASN:                                     21.88
AfriNIC Region origin ASes announcing only one prefix:              181
AfriNIC Region transit ASes present in the Internet Routing Table:  170
Average AfriNIC Region AS path length visible:                      4.6
    Max AfriNIC Region AS path length visible:                       22
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  210
Number of AfriNIC addresses announced to Internet:             78506240
    Equivalent to 4 /8s, 173 /16s and 233 /24s
    Percentage of available AfriNIC address space announced:       78.0

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     5560       4192          76   China Education and Research 
 7545     3297        354         214   TPG Telecom Limited
 4766     3168      11160        1126   Korea Telecom
17974     2924        914          96   PT Telekomunikasi Indonesia
 9829     2497       1467         462   National Internet Backbone
 4755     2089        432         240   TATA Communications formerly 
 9808     1883       8717          30   Guangdong Mobile Communicatio
 4808     1656       2299         541   CNCGROUP IP network China169 
 9583     1510        121         564   Sify Limited
38197     1487         92         212   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     3309       2948         145   Cox Communications Inc.
 6389     2322       3671          41   BellSouth.net Inc.
18566     2204        394         275   MegaPath Corporation
20115     1923       1937         404   Charter Communications
30036     1779        350         179   Mediacom Communications Corp
 6983     1690        849         232   EarthLink, Inc.
  209     1572       4666        1241   Qwest Communications Company,
 4323     1567       1004         386   tw telecom holdings, inc.
  701     1296      10702         704   MCI Communications Services, 
 7018     1278      19906         974   AT&T Services, 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     2453        928        1789   Akamai International B.V.
34984     1968        323         417   TELLCOM ILETISIM HIZMETLERI A
 8551     1630        376          55   Bezeq International-Ltd
12479     1173        979          92   France Telecom Espana SA
 6849     1152        355          21   JSC "Ukrtelecom"
13188     1079         98          66   TOV "Bank-Inform"
 8402     1046        544          15   OJSC "Vimpelcom"
31148     1027         47          41   Freenet Ltd.
 9198      957        352          25   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     3469        542         147   Telmex Colombia S.A.
 8151     2248       3401         577   Uninet S.A. de C.V.
 7303     1515        940         237   Telecom Argentina S.A.
11830     1483        368          53   Instituto Costarricense de El
 6503     1434        437          57   Axtel, S.A.B. de C.V.
 3816      997        478         187   COLOMBIA TELECOMUNICACIONES S
26615      989       2325          34   Tim Celular S.A.
 7738      987       1882          40   Telemar Norte Leste S.A.
11172      869        125          76   Alestra, S. de R.L. de C.V.
18881      867       1036          22   Global Village Telecom

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     1227        402          40   Link Egypt (Link.NET)
37611      641         48           2   Afrihost-Brevis Computer Serv
36903      616        310         110   Office National des Postes et
 8452      538       1472          15   TE-AS
36992      511       1357          26   ETISALAT MISR
37492      395        234          68   Orange Tunisie
24835      328        338          15   Vodafone Data
29571      301         37          13   Cote d'Ivoire Telecom
 2018      256        327          74   TENET (The UNINET Project)
36947      237        807          13   Telecom Algeria

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     5560       4192          76   China Education and Research 
10620     3469        542         147   Telmex Colombia S.A.
22773     3309       2948         145   Cox Communications Inc.
 7545     3297        354         214   TPG Telecom Limited
 4766     3168      11160        1126   Korea Telecom
17974     2924        914          96   PT Telekomunikasi Indonesia
39891     2901        151          11   SaudiNet, Saudi Telecom Compa
 9829     2497       1467         462   National Internet Backbone
20940     2453        928        1789   Akamai International B.V.
 6389     2322       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      3469        3322      Telmex Colombia S.A.
22773      3309        3164      Cox Communications Inc.
 7545      3297        3083      TPG Telecom Limited
39891      2901        2890      SaudiNet, Saudi Telecom Compa
17974      2924        2828      PT Telekomunikasi Indonesia
 6389      2322        2281      BellSouth.net Inc.
 4766      3168        2042      Korea Telecom
 9829      2497        2035      National Internet Backbone
18566      2204        1929      MegaPath Corporation
 9808      1883        1853      Guangdong Mobile Communicatio

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         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
27205   UNALLOCATED  8.38.20.0/24         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     /12:267     
/13:509     /14:1036    /15:1767    /16:13000   /17:7613    /18:12769   
/19:25947   /20:38243   /21:39996   /22:65749   /23:57212   /24:327351  
/25:561     /26:593     /27:418     /28:44      /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     2506          3309      Cox Communications Inc.
18566     2106          2204      MegaPath Corporation
30036     1593          1779      Mediacom Communications Corp
 6389     1487          2322      BellSouth.net Inc.
10620     1361          3469      Telmex Colombia S.A.
 6983     1339          1690      EarthLink, Inc.
34984     1252          1968      TELLCOM ILETISIM HIZMETLERI A
11492     1172          1266      CABLE ONE, INC.
 8551     1126          1630      Bezeq International-Ltd

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

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

   1:1575      2:747       4:21        5:2061      6:28        8:952    
  12:1773     13:39       14:1683     15:45       16:2        17:84     
  18:89       20:48       23:1521     24:1768     27:2277     31:1766   
  32:59       33:2        34:2        35:5        36:292      37:2262   
  38:1211     39:27       40:89       41:2759     42:396      43:1737   
  44:42       45:1807     46:2509     47:78       49:1130     50:881    
  51:24       52:173      54:328      55:5        56:6        57:42     
  58:1550     59:862      60:350      61:1811     62:1487     63:1924   
  64:4486     65:2146     66:4242     67:2151     68:1087     69:3249   
  70:1071     71:466      72:1992     74:2543     75:343      76:356    
  77:1377     78:1253     79:1069     80:1319     81:1371     82:929    
  83:695      84:820      85:1577     86:476      87:1047     88:562    
  89:1997     90:168      91:6100     92:887      93:2334     94:2339   
  95:2311     96:484      97:358      98:943      99:46      100:74     
 101:1051    103:10514   104:2391    105:123     106:401     107:1133   
 108:666     109:2325    110:1248    111:1645    112:958     113:1165   
 114:1047    115:1552    116:1588    117:1454    118:2058    119:1613   
 120:925     121:1168    122:2209    123:2012    124:1568    125:1752   
 128:692     129:407     130:404     131:1339    132:631     133:174    
 134:447     135:125     136:374     137:351     138:1718    139:259    
 140:540     141:471     142:642     143:911     144:665     145:156    
 146:857     147:686     148:1466    149:499     150:651     151:882    
 152:607     153:271     154:618     155:948     156:494     157:486    
 158:348     159:1110    160:476     161:747     162:2311    163:559    
 164:751     165:1048    166:312     167:1133    168:1763    169:651    
 170:1575    171:264     172:540     173:1709    174:734     175:730    
 176:1728    177:3950    178:2205    179:1143    180:2056    181:1698   
 182:1886    183:934     184:800     185:6331    186:3135    187:2090   
 188:2138    189:1741    190:7623    191:1232    192:8920    193:5724   
 194:4367    195:3758    196:1722    197:1057    198:5546    199:5702   
 200:6921    201:3679    202:10086   203:9636    204:4493    205:2708   
 206:2976    207:3104    208:4055    209:3812    210:3923    211:2045   
 212:2682    213:2221    214:852     215:71      216:5781    217:1934   
 218:791     219:577     220:1675    221:871     222:664     223:1213   


End of report


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