[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jul 31 18:12:17 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 01 Aug, 2015

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

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

BGP routing table entries examined:                              553519
    Prefixes after maximum aggregation (per Origin AS):          209389
    Deaggregation factor:                                          2.64
    Unique aggregates announced (without unneeded subnets):      270136
Total ASes present in the Internet Routing Table:                 51034
    Prefixes per ASN:                                             10.85
Origin-only ASes present in the Internet Routing Table:           36679
Origin ASes announcing only one prefix:                           16170
Transit ASes present in the Internet Routing Table:                6353
Transit-only ASes present in the Internet Routing Table:            174
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      39
    Max AS path prepend of ASN ( 12486)                              32
Prefixes from unregistered ASNs in the Routing Table:              1159
    Unregistered ASNs in the Routing Table:                         426
Number of 32-bit ASNs allocated by the RIRs:                      10415
Number of 32-bit ASNs visible in the Routing Table:                8002
Prefixes from 32-bit ASNs in the Routing Table:                   29602
Number of bogon 32-bit ASNs visible in the Routing Table:            17
Special use prefixes present in the Routing Table:                    3
Prefixes being announced from unallocated address space:            410
Number of addresses announced to Internet:                   2791199648
    Equivalent to 166 /8s, 94 /16s and 83 /24s
    Percentage of available address space announced:               75.4
    Percentage of allocated address space announced:               75.4
    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:      185310

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

Prefixes being announced by APNIC Region ASes:                   136680
    Total APNIC prefixes after maximum aggregation:               39845
    APNIC Deaggregation factor:                                    3.43
Prefixes being announced from the APNIC address blocks:          143686
    Unique aggregates announced from the APNIC address blocks:    58429
APNIC Region origin ASes present in the Internet Routing Table:    5074
    APNIC Prefixes per ASN:                                       28.32
APNIC Region origin ASes announcing only one prefix:               1198
APNIC Region transit ASes present in the Internet Routing Table:    884
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:   1571
Number of APNIC addresses announced to Internet:              751597504
    Equivalent to 44 /8s, 204 /16s and 119 /24s
    Percentage of available APNIC address space announced:         87.8

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:                    179814
    Total ARIN prefixes after maximum aggregation:                87974
    ARIN Deaggregation factor:                                     2.04
Prefixes being announced from the ARIN address blocks:           182558
    Unique aggregates announced from the ARIN address blocks:     85393
ARIN Region origin ASes present in the Internet Routing Table:    16588
    ARIN Prefixes per ASN:                                        11.01
ARIN Region origin ASes announcing only one prefix:                6080
ARIN Region transit ASes present in the Internet Routing Table:    1738
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:     578
Number of ARIN addresses announced to Internet:              1103165216
    Equivalent to 65 /8s, 192 /16s and 247 /24s
    Percentage of available ARIN address space announced:          58.4

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:                    134321
    Total RIPE prefixes after maximum aggregation:                66885
    RIPE Deaggregation factor:                                     2.01
Prefixes being announced from the RIPE address blocks:           140959
    Unique aggregates announced from the RIPE address blocks:     87426
RIPE Region origin ASes present in the Internet Routing Table:    17962
    RIPE Prefixes per ASN:                                         7.85
RIPE Region origin ASes announcing only one prefix:                8070
RIPE Region transit ASes present in the Internet Routing Table:    2983
Average RIPE Region AS path length visible:                         4.9
    Max RIPE Region AS path length visible:                          34
Number of RIPE region 32-bit ASNs visible in the Routing Table:    3894
Number of RIPE addresses announced to Internet:               698726016
    Equivalent to 41 /8s, 165 /16s and 182 /24s
    Percentage of available RIPE address space announced:         101.6

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:                   60698
    Total LACNIC prefixes after maximum aggregation:              11561
    LACNIC Deaggregation factor:                                   5.25
Prefixes being announced from the LACNIC address blocks:          71801
    Unique aggregates announced from the LACNIC address blocks:   33250
LACNIC Region origin ASes present in the Internet Routing Table:   2461
    LACNIC Prefixes per ASN:                                      29.18
LACNIC Region origin ASes announcing only one prefix:               622
LACNIC Region transit ASes present in the Internet Routing Table:   511
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:  1821
Number of LACNIC addresses announced to Internet:             168845888
    Equivalent to 10 /8s, 16 /16s and 98 /24s
    Percentage of available LACNIC address space announced:       100.6

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:                  12217
    Total AfriNIC prefixes after maximum aggregation:              3075
    AfriNIC Deaggregation factor:                                  3.97
Prefixes being announced from the AfriNIC address blocks:         14105
    Unique aggregates announced from the AfriNIC address blocks:   5270
AfriNIC Region origin ASes present in the Internet Routing Table:   740
    AfriNIC Prefixes per ASN:                                     19.06
AfriNIC Region origin ASes announcing only one prefix:              200
AfriNIC Region transit ASes present in the Internet Routing Table:  164
Average AfriNIC Region AS path length visible:                      4.6
    Max AfriNIC Region AS path length visible:                       24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  138
Number of AfriNIC addresses announced to Internet:             68403712
    Equivalent to 4 /8s, 19 /16s and 194 /24s
    Percentage of available AfriNIC address space announced:       68.0

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
 4766     2964      11298         949   Korea Telecom
17974     2702        904          80   PT Telekomunikasi Indonesia
 7545     2587        339         137   TPG Telecom Limited
 4755     2028        426         225   TATA Communications formerly 
 4538     1949       4190          71   China Education and Research 
 9829     1835       1367         179   National Internet Backbone
 9808     1582       8717          29   Guangdong Mobile Communicatio
 9583     1517        119         570   Sify Limited
 4808     1483       2248         469   CNCGROUP IP network China169 
 9498     1363        335         105   BHARTI Airtel Ltd.

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
22773     3180       2961         138   Cox Communications Inc.
 6389     2734       3688          51   BellSouth.net Inc.
 3356     2554      10710         514   Level 3 Communications, Inc.
18566     2068        381         203   MegaPath Corporation
20115     1874       1847         409   Charter Communications
 6983     1751        851         245   EarthLink, Inc.
 4323     1608       1022         416   tw telecom holdings, inc.
30036     1579        321         447   Mediacom Communications Corp
  701     1403      11376         683   MCI Communications Services, 
22561     1376        415         256   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     2472        128           6   SaudiNet, Saudi Telecom Compa
20940     2055        809        1487   Akamai International B.V.
34984     2047        306         375   TELLCOM ILETISIM HIZMETLERI A
 6849     1209        355          21   JSC "Ukrtelecom"
 8551     1101        376          52   Bezeq International-Ltd
13188     1068         97          77   TOV "Bank-Inform"
31148     1058         46          26   Freenet Ltd.
 8402      971        544          15   OJSC "Vimpelcom"
12479      971        933          77   France Telecom Espana SA
 6830      916       2696         469   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     3321        536         183   Telmex Colombia S.A.
28573     2304       2171         111   NET Serviços de Comunicação S
 8151     1671       3256         483   Uninet S.A. de C.V.
 7303     1635       1009         240   Telecom Argentina S.A.
 6147     1444        374          30   Telefonica del Peru S.A.A.
 6503     1266        421          55   Axtel, S.A.B. de C.V.
26615     1112       2325          35   Tim Celular S.A.
 7738      995       1882          41   Telemar Norte Leste S.A.
 3816      955        430         163   COLOMBIA TELECOMUNICACIONES S
11830      924        364          15   Instituto Costarricense de El

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      887        280          26   Link Egypt (Link.NET)
 8452      848       1470          14   TE-AS
36903      512        258          99   Office National des Postes et
36992      442       1229          32   ETISALAT MISR
37492      314        175          71   Orange Tunisie
24835      306        146          12   Vodafone Data
 3741      252        857         208   Internet Solutions
29571      247         21          13   Cote d'Ivoire Telecom
37054      189         20           7   Data Telecom Service
36947      175        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
10620     3321        536         183   Telmex Colombia S.A.
22773     3180       2961         138   Cox Communications Inc.
 4766     2964      11298         949   Korea Telecom
 6389     2734       3688          51   BellSouth.net Inc.
17974     2702        904          80   PT Telekomunikasi Indonesia
 7545     2587        339         137   TPG Telecom Limited
 3356     2554      10710         514   Level 3 Communications, Inc.
39891     2472        128           6   SaudiNet, Saudi Telecom Compa
28573     2304       2171         111   NET Serviços de Comunicação S
18566     2068        381         203   MegaPath Corporation

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

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

  ASN   No of nets  Net Savings Description
22773      3180        3042      Cox Communications Inc.
 6389      2734        2683      BellSouth.net Inc.
17974      2702        2622      PT Telekomunikasi Indonesia
39891      2472        2466      SaudiNet, Saudi Telecom Compa
 7545      2587        2450      TPG Telecom Limited
28573      2304        2193      NET Serviços de Comunicação S
 3356      2554        2040      Level 3 Communications, Inc.
 4766      2964        2015      Korea Telecom
 4538      1949        1878      China Education and Research 
18566      2068        1865      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
100.66.34.0/24       31148     Freenet Ltd.
100.66.35.0/24       31148     Freenet Ltd.
100.67.26.0/24       31148     Freenet Ltd.

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

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
14.192.56.0/22       23456     32bit Transition AS
23.226.112.0/20      62788     >>UNKNOWN<<
27.54.116.0/22       23456     32bit Transition AS
27.96.88.0/22        23456     32bit Transition AS
27.100.7.0/24        56096     >>UNKNOWN<<
27.100.24.0/22       23456     32bit Transition AS
27.109.124.0/22      23456     32bit Transition AS
27.111.72.0/22       23456     32bit Transition AS
27.112.120.0/22      23456     32bit Transition AS
27.116.40.0/22       23456     32bit Transition AS

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        /8:17       /9:13      /10:36      /11:96      /12:263     
/13:505     /14:1004    /15:1728    /16:12895   /17:7275    /18:12349   
/19:25526   /20:36065   /21:38750   /22:60524   /23:53004   /24:300407  
/25:1136    /26:1157    /27:715     /28:14      /29:14      /30:9       
/31:0       /32:17      

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

  ASN   No of nets  Total ann.   Description
39891     2432          2472      SaudiNet, Saudi Telecom Compa
22773     2374          3180      Cox Communications Inc.
18566     2010          2068      MegaPath Corporation
 6389     1619          2734      BellSouth.net Inc.
30036     1400          1579      Mediacom Communications Corp
 6983     1397          1751      EarthLink, Inc.
34984     1351          2047      TELLCOM ILETISIM HIZMETLERI A
10620     1194          3321      Telmex Colombia S.A.
11492     1124          1208      CABLE ONE, INC.
22561     1049          1376      CenturyTel Internet Holdings,

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

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

   1:1523      2:690       4:96        5:1882      6:25        8:1384   
  12:1811     13:14       14:1321     15:17       16:2        17:42     
  18:22       20:49       23:1259     24:1767     27:1976     31:1571   
  32:37       33:2        34:4        35:3        36:158      37:2014   
  38:1038     39:14       40:69       41:2754     42:297      43:1379   
  44:30       45:891      46:2323     47:51       49:928      50:784    
  52:12       54:86       55:5        56:6        57:43       58:1352   
  59:713      60:479      61:1759     62:1380     63:1905     64:4432   
  65:2260     66:4028     67:2079     68:1062     69:3238     70:1027   
  71:450      72:1965     74:2598     75:356      76:387      77:1286   
  78:1167     79:812      80:1363     81:1319     82:854      83:720    
  84:795      85:1361     86:445      87:1044     88:537      89:1936   
  90:147      91:5997     92:849      93:2278     94:2033     95:2193   
  96:423      97:348      98:1021     99:55      100:78      101:847    
 103:7906    104:2019    105:62      106:340     107:1042    108:626    
 109:2108    110:1150    111:1450    112:819     113:1105    114:839    
 115:1265    116:1461    117:1068    118:1804    119:1460    120:451    
 121:1140    122:2161    123:1842    124:1519    125:1611    128:634    
 129:399     130:416     131:1225    132:518     133:171     134:406    
 135:97      136:333     137:327     138:1058    139:150     140:238    
 141:502     142:663     143:512     144:548     145:125     146:796    
 147:580     148:1230    149:419     150:567     151:643     152:524    
 153:254     154:477     155:885     156:425     157:420     158:356    
 159:1022    160:409     161:665     162:1999    163:441     164:696    
 165:703     166:299     167:843     168:1242    169:187     170:1473   
 171:253     172:272     173:1533    174:721     175:696     176:1428   
 177:3834    178:2172    179:947     180:1935    181:1630    182:1802   
 183:628     184:758     185:3980    186:2890    187:1772    188:2080   
 189:1609    190:7705    191:1107    192:8531    193:5652    194:4223   
 195:3642    196:1999    197:1034    198:5551    199:5508    200:6670   
 201:3295    202:9503    203:9161    204:4691    205:2838    206:3020   
 207:2990    208:3983    209:3925    210:3566    211:1919    212:2541   
 213:2252    214:844     215:71      216:5743    217:1843    218:732    
 219:468     220:1480    221:816     222:471     223:811    

End of report



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