[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Sep 25 18:12:59 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,
CaribNOG and the RIPE Routing Working Group.

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 Sep, 2015

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

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

BGP routing table entries examined:                              564139
    Prefixes after maximum aggregation (per Origin AS):          210496
    Deaggregation factor:                                          2.68
    Unique aggregates announced (without unneeded subnets):      274506
Total ASes present in the Internet Routing Table:                 51538
    Prefixes per ASN:                                             10.95
Origin-only ASes present in the Internet Routing Table:           36669
Origin ASes announcing only one prefix:                           16099
Transit ASes present in the Internet Routing Table:                6405
Transit-only ASes present in the Internet Routing Table:            169
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      45
    Max AS path prepend of ASN ( 55644)                              41
Prefixes from unregistered ASNs in the Routing Table:              1089
    Unregistered ASNs in the Routing Table:                         408
Number of 32-bit ASNs allocated by the RIRs:                      11123
Number of 32-bit ASNs visible in the Routing Table:                8464
Prefixes from 32-bit ASNs in the Routing Table:                   32008
Number of bogon 32-bit ASNs visible in the Routing Table:            11
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            422
Number of addresses announced to Internet:                   2810154432
    Equivalent to 167 /8s, 127 /16s and 141 /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:               97.6
Total number of prefixes smaller than registry allocations:      186240

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

Prefixes being announced by APNIC Region ASes:                   143190
    Total APNIC prefixes after maximum aggregation:               39689
    APNIC Deaggregation factor:                                    3.61
Prefixes being announced from the APNIC address blocks:          150804
    Unique aggregates announced from the APNIC address blocks:    59977
APNIC Region origin ASes present in the Internet Routing Table:    5090
    APNIC Prefixes per ASN:                                       29.63
APNIC Region origin ASes announcing only one prefix:               1203
APNIC Region transit ASes present in the Internet Routing Table:    888
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         36
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1625
Number of APNIC addresses announced to Internet:              752840960
    Equivalent to 44 /8s, 223 /16s and 113 /24s
    Percentage of available APNIC address space announced:         88.0

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:                    179852
    Total ARIN prefixes after maximum aggregation:                88238
    ARIN Deaggregation factor:                                     2.04
Prefixes being announced from the ARIN address blocks:           182897
    Unique aggregates announced from the ARIN address blocks:     86351
ARIN Region origin ASes present in the Internet Routing Table:    16576
    ARIN Prefixes per ASN:                                        11.03
ARIN Region origin ASes announcing only one prefix:                6042
ARIN Region transit ASes present in the Internet Routing Table:    1746
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          27
Number of ARIN region 32-bit ASNs visible in the Routing Table:     697
Number of ARIN addresses announced to Internet:              1118369984
    Equivalent to 66 /8s, 168 /16s and 248 /24s
    Percentage of available ARIN address space announced:          59.2

ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  2138-2584, 2615-2772, 2823-2829, 2880-3153
                       3354-4607, 4865-5119, 5632-6655, 6912-7466
                       7723-8191, 10240-12287, 13312-15359, 16384-17407
                       18432-20479, 21504-23551, 25600-26591,
                       26624-27647, 29696-30719, 31744-33791
                       35840-36863, 39936-40959, 46080-47103
                       53248-55295, 62464-63487, 64198-64296, 393216-395164
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  23/8,  24/8,  26/8,  28/8,
                        29/8,  30/8,  32/8,  33/8,  34/8,  35/8,  38/8,
                        40/8,  44/8,  45/8,  47/8,  48/8,  50/8,  52/8,
                        53/8,  54/8,  55/8,  56/8,  57/8,  63/8,  64/8,
                        65/8,  66/8,  67/8,  68/8,  69/8,  70/8,  71/8,
                        72/8,  73/8,  74/8,  75/8,  76/8,  96/8,  97/8,
                        98/8,  99/8, 100/8, 104/8, 107/8, 108/8, 128/8,
                       129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
                       137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
                       146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
                       157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
                       165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
                       173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8,
                       205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8,
                       216/8,

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

Prefixes being announced by RIPE Region ASes:                    135843
    Total RIPE prefixes after maximum aggregation:                67781
    RIPE Deaggregation factor:                                     2.00
Prefixes being announced from the RIPE address blocks:           142937
    Unique aggregates announced from the RIPE address blocks:     88843
RIPE Region origin ASes present in the Internet Routing Table:    18004
    RIPE Prefixes per ASN:                                         7.94
RIPE Region origin ASes announcing only one prefix:                8048
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:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    4046
Number of RIPE addresses announced to Internet:               699634944
    Equivalent to 41 /8s, 179 /16s and 149 /24s
    Percentage of available RIPE address space announced:         101.7

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:                   60956
    Total LACNIC prefixes after maximum aggregation:              11662
    LACNIC Deaggregation factor:                                   5.23
Prefixes being announced from the LACNIC address blocks:          72889
    Unique aggregates announced from the LACNIC address blocks:   33608
LACNIC Region origin ASes present in the Internet Routing Table:   2470
    LACNIC Prefixes per ASN:                                      29.51
LACNIC Region origin ASes announcing only one prefix:               610
LACNIC Region transit ASes present in the Internet Routing Table:   536
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        28
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1946
Number of LACNIC addresses announced to Internet:             169251328
    Equivalent to 10 /8s, 22 /16s and 146 /24s
    Percentage of available LACNIC address space announced:       100.9

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:                  12177
    Total AfriNIC prefixes after maximum aggregation:              3084
    AfriNIC Deaggregation factor:                                  3.95
Prefixes being announced from the AfriNIC address blocks:         14190
    Unique aggregates announced from the AfriNIC address blocks:   5364
AfriNIC Region origin ASes present in the Internet Routing Table:   737
    AfriNIC Prefixes per ASN:                                     19.25
AfriNIC Region origin ASes announcing only one prefix:              196
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:                       24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  150
Number of AfriNIC addresses announced to Internet:             69448448
    Equivalent to 4 /8s, 35 /16s and 179 /24s
    Percentage of available AfriNIC address space announced:       69.0

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     5590       4192          76   China Education and Research 
 4766     3012      11134         984   Korea Telecom
 7545     2799        339         134   TPG Telecom Limited
17974     2710        908          90   PT Telekomunikasi Indonesia
 4755     2046        427         229   TATA Communications formerly 
 9829     1908       1383         226   National Internet Backbone
 9808     1613       8639          18   Guangdong Mobile Communicatio
 4812     1574       2099         113   China Telecom (Group)
 4808     1519       2255         477   CNCGROUP IP network China169 
 9583     1497        118         560   Sify Limited

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

ARIN Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
22773     3192       2966         144   Cox Communications Inc.
 6389     2686       3688          44   BellSouth.net Inc.
 3356     2528      10708         499   Level 3 Communications, Inc.
18566     2167        392         265   MegaPath Corporation
20115     1887       1881         393   Charter Communications
 6983     1739        866         242   EarthLink, Inc.
30036     1607        322         381   Mediacom Communications Corp
 4323     1587       1005         406   tw telecom holdings, inc.
  701     1400      11401         676   MCI Communications Services, 
22561     1284        365         214   CenturyTel Internet Holdings,

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     2136        842        1544   Akamai International B.V.
34984     2048        306         377   TELLCOM ILETISIM HIZMETLERI A
 8402     1075        544          15   OJSC "Vimpelcom"
13188     1072         97          76   TOV "Bank-Inform"
 6849     1062        355          21   JSC "Ukrtelecom"
31148     1053         46          24   Freenet Ltd.
12479     1005        965          78   France Telecom Espana SA
 8551      982        376          52   Bezeq International-Ltd
 6830      912       2694         465   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     3382        540         133   Telmex Colombia S.A.
28573     2185       2169         121   NET Serviços de Comunicação S
 8151     1847       3286         486   Uninet S.A. de C.V.
 7303     1566        936         249   Telecom Argentina S.A.
 6503     1397        429          56   Axtel, S.A.B. de C.V.
26615     1081       2325          35   Tim Celular S.A.
 6147     1062        374          30   Telefonica del Peru S.A.A.
 7738      997       1882          41   Telemar Norte Leste S.A.
11830      995        364          24   Instituto Costarricense de El
 3816      954        437         163   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      930       1470          14   TE-AS
24863      805        281          37   Link Egypt (Link.NET)
36903      512        258          99   Office National des Postes et
36992      439       1229          32   ETISALAT MISR
37492      315        191          72   Orange Tunisie
24835      286        146          12   Vodafone Data
29571      247         21          13   Cote d'Ivoire Telecom
 3741      223        853         186   Internet Solutions
36947      185        807          13   Telecom Algeria
12258      170         26          69   MWEB CONNECT (PROPRIETARY) LI

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     5590       4192          76   China Education and Research 
10620     3382        540         133   Telmex Colombia S.A.
22773     3192       2966         144   Cox Communications Inc.
 4766     3012      11134         984   Korea Telecom
 7545     2799        339         134   TPG Telecom Limited
17974     2710        908          90   PT Telekomunikasi Indonesia
 6389     2686       3688          44   BellSouth.net Inc.
 3356     2528      10708         499   Level 3 Communications, Inc.
39891     2473        129           7   SaudiNet, Saudi Telecom Compa
28573     2185       2169         121   NET Serviços de Comunicação S

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      3382        3249      Telmex Colombia S.A.
22773      3192        3048      Cox Communications Inc.
 7545      2799        2665      TPG Telecom Limited
 6389      2686        2642      BellSouth.net Inc.
17974      2710        2620      PT Telekomunikasi Indonesia
39891      2473        2466      SaudiNet, Saudi Telecom Compa
28573      2185        2064      NET Serviços de Comunicação S
 3356      2528        2029      Level 3 Communications, Inc.
 4766      3012        2028      Korea Telecom
18566      2167        1902      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
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         2828       XO Communications
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        12180       Internap Network Ser
46473   UNALLOCATED  8.27.124.0/24        12180       Internap Network Ser
27205   UNALLOCATED  8.38.16.0/21          6461       Abovenet Communicati
15347   UNALLOCATED  8.224.147.0/24       12064       Cox Communications I
33628   UNALLOCATED  12.0.239.0/24         1239       Sprint

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

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

Prefix             Origin AS  Description
100.100.1.0/24        9730     Bharti Telesonic Ltd

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
27.50.8.0/24         55548     >>UNKNOWN<<
27.50.9.0/24         55548     >>UNKNOWN<<
27.50.10.0/24        55548     >>UNKNOWN<<
27.50.11.0/24        55548     >>UNKNOWN<<
27.100.7.0/24        56096     >>UNKNOWN<<
31.217.248.0/21      44902     COVAGE NETWORKS SASU

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        /8:18       /9:13      /10:36      /11:95      /12:262     
/13:501     /14:1006    /15:1743    /16:12909   /17:7401    /18:12590   
/19:26300   /20:37378   /21:39531   /22:62006   /23:54193   /24:305834  
/25:845     /26:927     /27:492     /28:15      /29:14      /30:9       
/31:0       /32:21      

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

  ASN   No of nets  Total ann.   Description
39891     2432          2473      SaudiNet, Saudi Telecom Compa
22773     2400          3192      Cox Communications Inc.
18566     2075          2167      MegaPath Corporation
 6389     1607          2686      BellSouth.net Inc.
30036     1426          1607      Mediacom Communications Corp
 6983     1387          1739      EarthLink, Inc.
34984     1368          2048      TELLCOM ILETISIM HIZMETLERI A
10620     1254          3382      Telmex Colombia S.A.
11492     1131          1213      CABLE ONE, INC.
22561      993          1284      CenturyTel Internet Holdings,

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

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

   1:1586      2:688       4:97        5:1890      6:25        8:1406   
  12:1806     13:13       14:1438     15:16       16:2        17:50     
  18:22       20:51       23:1264     24:1740     27:2079     31:1620   
  32:52       33:2        34:2        35:4        36:154      37:2038   
  38:1064     39:15       40:72       41:2789     42:341      43:1527   
  44:32       45:1275     46:2355     47:57       49:994      50:800    
  52:23       54:94       55:5        56:4        57:43       58:1422   
  59:778      60:499      61:1784     62:1421     63:1901     64:4397   
  65:2248     66:3991     67:2076     68:1074     69:3274     70:1035   
  71:454      72:1982     74:2547     75:361      76:395      77:1376   
  78:1207     79:812      80:1346     81:1358     82:878      83:714    
  84:766      85:1401     86:452      87:1025     88:535      89:1922   
  90:150      91:6015     92:846      93:2278     94:2129     95:2164   
  96:436      97:349      98:958      99:55      100:75      101:854    
 103:8362    104:1967    105:79      106:348     107:1048    108:628    
 109:2144    110:1211    111:1463    112:830     113:1119    114:866    
 115:1376    116:1511    117:1117    118:1954    119:1474    120:469    
 121:1154    122:2176    123:1843    124:1561    125:1726    128:702    
 129:368     130:430     131:1246    132:539     133:166     134:427    
 135:106     136:350     137:325     138:1329    139:171     140:248    
 141:438     142:657     143:543     144:575     145:127     146:769    
 147:595     148:1265    149:436     150:596     151:797     152:568    
 153:258     154:495     155:885     156:421     157:424     158:346    
 159:1061    160:426     161:670     162:2124    163:464     164:693    
 165:857     166:301     167:874     168:1232    169:196     170:1402   
 171:251     172:279     173:1525    174:712     175:716     176:1459   
 177:3933    178:2195    179:1005    180:1936    181:1557    182:1811   
 183:635     184:746     185:4347    186:2921    187:1880    188:2110   
 189:1685    190:7615    191:1169    192:8597    193:5667    194:4269   
 195:3672    196:1956    197:1094    198:5477    199:5518    200:6669   
 201:3290    202:9788    203:9216    204:4548    205:2741    206:3028   
 207:2980    208:4001    209:3892    210:3755    211:2042    212:2572   
 213:2211    214:848     215:72      216:5762    217:1800    218:802    
 219:533     220:1569    221:822     222:722     223:831    

End of report



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