[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 19 18:13:14 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 20 Jun, 2015

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

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

BGP routing table entries examined:                              549882
    Prefixes after maximum aggregation (per Origin AS):          208354
    Deaggregation factor:                                          2.64
    Unique aggregates announced (without unneeded subnets):      267650
Total ASes present in the Internet Routing Table:                 50672
    Prefixes per ASN:                                             10.85
Origin-only ASes present in the Internet Routing Table:           36714
Origin ASes announcing only one prefix:                           16279
Transit ASes present in the Internet Routing Table:                6324
Transit-only ASes present in the Internet Routing Table:            165
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      41
    Max AS path prepend of ASN ( 12486)                              32
Prefixes from unregistered ASNs in the Routing Table:              1225
    Unregistered ASNs in the Routing Table:                         426
Number of 32-bit ASNs allocated by the RIRs:                       9896
Number of 32-bit ASNs visible in the Routing Table:                7634
Prefixes from 32-bit ASNs in the Routing Table:                   28027
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:            388
Number of addresses announced to Internet:                   2772890656
    Equivalent to 165 /8s, 70 /16s and 244 /24s
    Percentage of available address space announced:               74.9
    Percentage of allocated address space announced:               74.9
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               97.4
Total number of prefixes smaller than registry allocations:      184389

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

Prefixes being announced by APNIC Region ASes:                   135535
    Total APNIC prefixes after maximum aggregation:               39259
    APNIC Deaggregation factor:                                    3.45
Prefixes being announced from the APNIC address blocks:          142125
    Unique aggregates announced from the APNIC address blocks:    57084
APNIC Region origin ASes present in the Internet Routing Table:    5072
    APNIC Prefixes per ASN:                                       28.02
APNIC Region origin ASes announcing only one prefix:               1215
APNIC Region transit ASes present in the Internet Routing Table:    878
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         38
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1502
Number of APNIC addresses announced to Internet:              750709184
    Equivalent to 44 /8s, 190 /16s and 233 /24s
    Percentage of available APNIC address space announced:         87.7

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:                    180493
    Total ARIN prefixes after maximum aggregation:                88365
    ARIN Deaggregation factor:                                     2.04
Prefixes being announced from the ARIN address blocks:           182879
    Unique aggregates announced from the ARIN address blocks:     85354
ARIN Region origin ASes present in the Internet Routing Table:    16611
    ARIN Prefixes per ASN:                                        11.01
ARIN Region origin ASes announcing only one prefix:                6117
ARIN Region transit ASes present in the Internet Routing Table:    1727
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:     483
Number of ARIN addresses announced to Internet:              1093015328
    Equivalent to 65 /8s, 38 /16s and 23 /24s
    Percentage of available ARIN address space announced:          57.8

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:                    133222
    Total RIPE prefixes after maximum aggregation:                66199
    RIPE Deaggregation factor:                                     2.01
Prefixes being announced from the RIPE address blocks:           139731
    Unique aggregates announced from the RIPE address blocks:     86551
RIPE Region origin ASes present in the Internet Routing Table:    17970
    RIPE Prefixes per ASN:                                         7.78
RIPE Region origin ASes announcing only one prefix:                8133
RIPE Region transit ASes present in the Internet Routing Table:    2983
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          35
Number of RIPE region 32-bit ASNs visible in the Routing Table:    3790
Number of RIPE addresses announced to Internet:               694897664
    Equivalent to 41 /8s, 107 /16s and 76 /24s
    Percentage of available RIPE address space announced:         101.0

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:                   60347
    Total LACNIC prefixes after maximum aggregation:              11405
    LACNIC Deaggregation factor:                                   5.29
Prefixes being announced from the LACNIC address blocks:          70967
    Unique aggregates announced from the LACNIC address blocks:   33075
LACNIC Region origin ASes present in the Internet Routing Table:   2449
    LACNIC Prefixes per ASN:                                      28.98
LACNIC Region origin ASes announcing only one prefix:               618
LACNIC Region transit ASes present in the Internet Routing Table:   506
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        22
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1736
Number of LACNIC addresses announced to Internet:             168145216
    Equivalent to 10 /8s, 5 /16s and 177 /24s
    Percentage of available LACNIC address space announced:       100.2

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:                  12002
    Total AfriNIC prefixes after maximum aggregation:              3078
    AfriNIC Deaggregation factor:                                  3.90
Prefixes being announced from the AfriNIC address blocks:         13792
    Unique aggregates announced from the AfriNIC address blocks:   5236
AfriNIC Region origin ASes present in the Internet Routing Table:   739
    AfriNIC Prefixes per ASN:                                     18.66
AfriNIC Region origin ASes announcing only one prefix:              196
AfriNIC Region transit ASes present in the Internet Routing Table:  157
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:  123
Number of AfriNIC addresses announced to Internet:             65706496
    Equivalent to 3 /8s, 234 /16s and 154 /24s
    Percentage of available AfriNIC address space announced:       65.3

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     2949      11560         938   Korea Telecom
17974     2697        904          78   PT Telekomunikasi Indonesia
 7545     2597        336         128   TPG Telecom Limited
 4755     2026        423         222   TATA Communications formerly 
 4538     1936       4190          71   China Education and Research 
 9829     1717       1345         103   National Internet Backbone
 9808     1539       8717          28   Guangdong Mobile Communicatio
 9583     1471        117         567   Sify Limited
 4808     1453       2247         463   CNCGROUP IP network China169 
 9498     1350        336         106   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     3172       2958         139   Cox Communications Inc.
 6389     2792       3688          51   BellSouth.net Inc.
 3356     2557      10687         504   Level 3 Communications, Inc.
18566     2050        380         192   MegaPath Corporation
20115     1887       1853         423   Charter Communications
 6983     1749        850         244   EarthLink, Inc.
 4323     1607       1022         411   tw telecom holdings, inc.
30036     1570        319         440   Mediacom Communications Corp
  701     1394      11353         678   MCI Communications Services, 
22561     1355        414         250   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
34984     2146        305         363   TELLCOM ILETISIM HIZMETLERI A
20940     1945        758        1417   Akamai International B.V.
 6849     1210        355          22   JSC "Ukrtelecom"
31148     1048         45          23   Freenet Ltd.
13188     1041         97          71   TOV "Bank-Inform"
 8402     1031        544          15   OJSC "Vimpelcom"
12479      947        868          72   France Telecom Espana SA
 6830      912       2694         468   Liberty Global Operations B.V
 8551      872        376          52   Bezeq International-Ltd

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     3250        532         228   Telmex Colombia S.A.
28573     2276       2170         113   NET Serviços de Comunicação S
 8151     1688       3238         469   Uninet S.A. de C.V.
 7303     1639       1019         238   Telecom Argentina S.A.
 6147     1621        373          44   Telefonica del Peru S.A.A.
 6503     1251        421          55   Axtel, S.A.B. de C.V.
26615     1056       2325          35   Tim Celular S.A.
 7738      999       1882          41   Telemar Norte Leste S.A.
 3816      947        427         159   COLOMBIA TELECOMUNICACIONES S
11830      893        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      875        280          26   Link Egypt (Link.NET)
 8452      801        958          13   TE-AS
36903      510        257         102   Office National des Postes et
36992      423       1229          32   ETISALAT MISR
37492      312        175          71   Orange Tunisie
24835      306        146          13   Vodafone Data
 3741      250        857         208   Internet Solutions
29571      241         21          12   Cote d'Ivoire Telecom
36947      189        807          13   Telecom Algeria
37054      180         19           6   Data Telecom Service

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     3250        532         228   Telmex Colombia S.A.
22773     3172       2958         139   Cox Communications Inc.
 4766     2949      11560         938   Korea Telecom
 6389     2792       3688          51   BellSouth.net Inc.
17974     2697        904          78   PT Telekomunikasi Indonesia
 7545     2597        336         128   TPG Telecom Limited
 3356     2557      10687         504   Level 3 Communications, Inc.
39891     2472        128           6   SaudiNet, Saudi Telecom Compa
28573     2276       2170         113   NET Serviços de Comunicação S
34984     2146        305         363   TELLCOM ILETISIM HIZMETLERI A

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      3172        3033      Cox Communications Inc.
 6389      2792        2741      BellSouth.net Inc.
17974      2697        2619      PT Telekomunikasi Indonesia
 7545      2597        2469      TPG Telecom Limited
39891      2472        2466      SaudiNet, Saudi Telecom Compa
28573      2276        2163      NET Serviços de Comunicação S
 3356      2557        2053      Level 3 Communications, Inc.
 4766      2949        2011      Korea Telecom
 4538      1936        1865      China Education and Research 
18566      2050        1858      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
53506   UNALLOCATED  8.17.102.0/23         3356       Level 3 Communicatio
46467   UNALLOCATED  8.19.192.0/24        46887       Lightower Fiber Netw
18985   UNALLOCATED  8.21.68.0/22          3356       Level 3 Communicatio
46473   UNALLOCATED  8.27.122.0/24        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
32805   UNALLOCATED  12.1.225.0/24         7018       AT&T Services, Inc.

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

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

Network            Origin AS  Description
5.100.241.0/24       23456     32bit Transition AS
23.226.112.0/20      62788     >>UNKNOWN<<
27.100.7.0/24        56096     >>UNKNOWN<<
31.217.248.0/21      44902     COVAGE NETWORKS SASU
41.73.1.0/24         37004     >>UNKNOWN<<
41.73.10.0/24        37004     >>UNKNOWN<<
41.73.11.0/24        37004     >>UNKNOWN<<
41.73.12.0/24        37004     >>UNKNOWN<<
41.73.13.0/24        37004     >>UNKNOWN<<
41.73.15.0/24        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        /8:17       /9:13      /10:34      /11:95      /12:264     
/13:507     /14:1004    /15:1724    /16:12948   /17:7303    /18:12345   
/19:25546   /20:36082   /21:38868   /22:60125   /23:52172   /24:297840  
/25:1097    /26:1135    /27:715     /28:14      /29:12      /30:7       
/31:0       /32:15      

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

  ASN   No of nets  Total ann.   Description
39891     2432          2472      SaudiNet, Saudi Telecom Compa
22773     2374          3172      Cox Communications Inc.
18566     2000          2050      MegaPath Corporation
 6389     1640          2792      BellSouth.net Inc.
34984     1401          2146      TELLCOM ILETISIM HIZMETLERI A
 6983     1397          1749      EarthLink, Inc.
30036     1396          1570      Mediacom Communications Corp
 6147     1174          1621      Telefonica del Peru S.A.A.
10620     1144          3250      Telmex Colombia S.A.
11492     1105          1188      CABLE ONE, INC.

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

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

   1:1496      2:681       4:92        5:1867      6:25        8:1409   
  11:1        12:1818     13:14       14:1374     15:17       16:2      
  17:44       18:22       20:48       23:1240     24:1762     27:1923   
  31:1591     32:38       33:2        34:4        35:3        36:133    
  37:1984     38:1038     39:6        40:253      41:2669     42:276    
  43:1330     44:28       45:751      46:2294     47:45       49:901    
  50:812      52:12       54:77       55:5        56:6        57:41     
  58:1323     59:715      60:480      61:1745     62:1365     63:1923   
  64:4475     65:2263     66:4070     67:2076     68:1064     69:3254   
  70:1024     71:445      72:1978     74:2658     75:339      76:424    
  77:1296     78:1180     79:787      80:1338     81:1297     82:834    
  83:722      84:726      85:1409     86:411      87:1042     88:524    
  89:1848     90:152      91:5995     92:856      93:2238     94:2053   
  95:2180     96:426      97:355      98:1053     99:51      100:72     
 101:840     103:7660    104:1821    105:61      106:235     107:990    
 108:630     109:2065    110:1119    111:1442    112:831     113:1088   
 114:836     115:1278    116:1386    117:1038    118:1821    119:1458   
 120:447     121:1089    122:2146    123:1843    124:1516    125:1611   
 128:644     129:394     130:404     131:1200    132:502     133:177    
 134:407     135:95      136:332     137:314     138:886     139:153    
 140:235     141:448     142:668     143:522     144:572     145:118    
 146:736     147:586     148:1207    149:417     150:564     151:667    
 152:519     153:245     154:460     155:861     156:417     157:417    
 158:343     159:1006    160:384     161:663     162:1957    163:436    
 164:685     165:695     166:312     167:836     168:1314    169:177    
 170:1461    171:246     172:193     173:1554    174:721     175:694    
 176:1370    177:3786    178:2156    179:948     180:1948    181:1676   
 182:1810    183:628     184:755     185:3706    186:2740    187:1791   
 188:2059    189:1581    190:7788    191:1031    192:8468    193:5619   
 194:4169    195:3688    196:1980    197:966     198:5550    199:5493   
 200:6656    201:3259    202:9438    203:9155    204:4701    205:2842   
 206:3051    207:2967    208:3989    209:3966    210:3532    211:1860   
 212:2562    213:2365    214:850     215:72      216:5759    217:1801   
 218:715     219:463     220:1454    221:780     222:477     223:725    


End of report


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