[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Mar 13 18:11:40 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 14 Mar, 2015

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

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

BGP routing table entries examined:                              536814
    Prefixes after maximum aggregation (per Origin AS):          205071
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      261783
Total ASes present in the Internet Routing Table:                 49643
    Prefixes per ASN:                                             10.81
Origin-only ASes present in the Internet Routing Table:           36509
Origin ASes announcing only one prefix:                           16263
Transit ASes present in the Internet Routing Table:                6268
Transit-only ASes present in the Internet Routing Table:            167
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      59
    Max AS path prepend of ASN ( 55644)                              56
Prefixes from unregistered ASNs in the Routing Table:              1218
    Unregistered ASNs in the Routing Table:                         423
Number of 32-bit ASNs allocated by the RIRs:                       8853
Number of 32-bit ASNs visible in the Routing Table:                6866
Prefixes from 32-bit ASNs in the Routing Table:                   25043
Number of bogon 32-bit ASNs visible in the Routing Table:             2
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            397
Number of addresses announced to Internet:                   2734437540
    Equivalent to 162 /8s, 252 /16s and 52 /24s
    Percentage of available address space announced:               73.9
    Percentage of allocated address space announced:               73.9
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               97.2
Total number of prefixes smaller than registry allocations:      181412

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

Prefixes being announced by APNIC Region ASes:                   132367
    Total APNIC prefixes after maximum aggregation:               38507
    APNIC Deaggregation factor:                                    3.44
Prefixes being announced from the APNIC address blocks:          137922
    Unique aggregates announced from the APNIC address blocks:    56238
APNIC Region origin ASes present in the Internet Routing Table:    5023
    APNIC Prefixes per ASN:                                       27.46
APNIC Region origin ASes announcing only one prefix:               1205
APNIC Region transit ASes present in the Internet Routing Table:    876
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         59
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1345
Number of APNIC addresses announced to Internet:              746144000
    Equivalent to 44 /8s, 121 /16s and 65 /24s
    Percentage of available APNIC address space announced:         87.2

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:                    176974
    Total ARIN prefixes after maximum aggregation:                87478
    ARIN Deaggregation factor:                                     2.02
Prefixes being announced from the ARIN address blocks:           178978
    Unique aggregates announced from the ARIN address blocks:     84017
ARIN Region origin ASes present in the Internet Routing Table:    16508
    ARIN Prefixes per ASN:                                        10.84
ARIN Region origin ASes announcing only one prefix:                6077
ARIN Region transit ASes present in the Internet Routing Table:    1707
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:     370
Number of ARIN addresses announced to Internet:              1062170400
    Equivalent to 63 /8s, 79 /16s and 111 /24s
    Percentage of available ARIN address space announced:          56.2

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, 393216-394239
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:                    130480
    Total RIPE prefixes after maximum aggregation:                64954
    RIPE Deaggregation factor:                                     2.01
Prefixes being announced from the RIPE address blocks:           136837
    Unique aggregates announced from the RIPE address blocks:     84064
RIPE Region origin ASes present in the Internet Routing Table:    17900
    RIPE Prefixes per ASN:                                         7.64
RIPE Region origin ASes announcing only one prefix:                8151
RIPE Region transit ASes present in the Internet Routing Table:    2961
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:    3502
Number of RIPE addresses announced to Internet:               694120324
    Equivalent to 41 /8s, 95 /16s and 111 /24s
    Percentage of available RIPE address space announced:         100.9

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, 196608-202239
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:                   59054
    Total LACNIC prefixes after maximum aggregation:              11076
    LACNIC Deaggregation factor:                                   5.33
Prefixes being announced from the LACNIC address blocks:          68874
    Unique aggregates announced from the LACNIC address blocks:   31949
LACNIC Region origin ASes present in the Internet Routing Table:   2412
    LACNIC Prefixes per ASN:                                      28.55
LACNIC Region origin ASes announcing only one prefix:               624
LACNIC Region transit ASes present in the Internet Routing Table:   494
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1553
Number of LACNIC addresses announced to Internet:             167914240
    Equivalent to 10 /8s, 2 /16s and 43 /24s
    Percentage of available LACNIC address space announced:       100.1

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:                  12706
    Total AfriNIC prefixes after maximum aggregation:              3012
    AfriNIC Deaggregation factor:                                  4.22
Prefixes being announced from the AfriNIC address blocks:         13806
    Unique aggregates announced from the AfriNIC address blocks:   5154
AfriNIC Region origin ASes present in the Internet Routing Table:   737
    AfriNIC Prefixes per ASN:                                     18.73
AfriNIC Region origin ASes announcing only one prefix:              206
AfriNIC Region transit ASes present in the Internet Routing Table:  153
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   96
Number of AfriNIC addresses announced to Internet:             63579648
    Equivalent to 3 /8s, 202 /16s and 38 /24s
    Percentage of available AfriNIC address space announced:       63.2

AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4766     2867      11553         910   Korea Telecom
17974     2792        904          78   PT Telekomunikasi Indonesia
 7545     2531        336         126   TPG Telecom Limited
 4755     1990        422         212   TATA Communications formerly 
 4538     1760       4190          71   China Education and Research 
 9829     1693       1326          38   National Internet Backbone
 9808     1547       8717          28   Guangdong Mobile Communicatio
 4808     1462       2251         439   CNCGROUP IP network China169 
 9583     1396        115         572   Sify Limited
 9498     1307        334          95   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     3012       2955         141   Cox Communications Inc.
 6389     2891       3688          51   BellSouth.net Inc.
 3356     2548      10683         478   Level 3 Communications, Inc.
18566     2041        379         183   MegaPath Corporation
20115     1846       1831         428   Charter Communications
 6983     1705        866         245   EarthLink, Inc.
 4323     1621       1021         407   tw telecom holdings, inc.
30036     1525        312         500   Mediacom Communications Corp
  701     1385      11260         673   MCI Communications Services, 
22561     1330        412         241   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     1973        303         360   TELLCOM ILETISIM HIZMETLERI A
20940     1634        635        1213   Akamai International B.V.
 8402     1375        544          15   OJSC "Vimpelcom"
 6849     1212        356          24   JSC "Ukrtelecom"
31148     1046         45          21   Freenet Ltd.
13188     1015         96          70   TOV "Bank-Inform"
 8551      903        373          48   Bezeq International-Ltd
12479      877        797          83   France Telecom Espana SA
 9198      847        349          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     3141        511         211   Telmex Colombia S.A.
28573     2370       2170         117   NET Serviços de Comunicação S
 7303     1793       1190         233   Telecom Argentina S.A.
 6147     1574        374          30   Telefonica del Peru S.A.A.
 8151     1550       3127         448   Uninet S.A. de C.V.
 6503     1199        421          57   Axtel, S.A.B. de C.V.
 7738     1000       1882          41   Telemar Norte Leste S.A.
26615      956       2325          35   Tim Celular S.A.
 3816      916        404         150   COLOMBIA TELECOMUNICACIONES S
18881      865       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
 8452     1555        958          13   TE-AS
24863      956        284          26   Link Egypt (Link.NET)
36903      479        241          90   Office National des Postes et
36992      402       1101          31   ETISALAT MISR
37492      321        159          70   Orange Tunisie
24835      299        144           9   Vodafone Data
 3741      250        921         209   Internet Solutions
29571      236         21          13   Cote d'Ivoire Telecom
36947      193        712          14   Telecom Algeria
15706      172         32           6   Sudatel (Sudan Telecom Co. Lt

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     3141        511         211   Telmex Colombia S.A.
22773     3012       2955         141   Cox Communications Inc.
 6389     2891       3688          51   BellSouth.net Inc.
 4766     2867      11553         910   Korea Telecom
17974     2792        904          78   PT Telekomunikasi Indonesia
 3356     2548      10683         478   Level 3 Communications, Inc.
 7545     2531        336         126   TPG Telecom Limited
39891     2472        128           6   SaudiNet, Saudi Telecom Compa
28573     2370       2170         117   NET Serviços de Comunicação S
18566     2041        379         183   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      3012        2871      Cox Communications Inc.
 6389      2891        2840      BellSouth.net Inc.
17974      2792        2714      PT Telekomunikasi Indonesia
39891      2472        2466      SaudiNet, Saudi Telecom Compa
 7545      2531        2405      TPG Telecom Limited
28573      2370        2253      NET Serviços de Comunicação S
 3356      2548        2070      Level 3 Communications, Inc.
 4766      2867        1957      Korea Telecom
18566      2041        1858      MegaPath Corporation
 4755      1990        1778      TATA Communications formerly 

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     Bitfinite LLC
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        /8:16       /9:12      /10:34      /11:92      /12:264     
/13:505     /14:1000    /15:1720    /16:12968   /17:7176    /18:12201   
/19:25182   /20:35743   /21:38593   /22:58319   /23:50742   /24:289304  
/25:1080    /26:1148    /27:664     /28:17      /29:13      /30:8       
/31:0       /32:13      

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

  ASN   No of nets  Total ann.   Description
39891     2432          2472      SaudiNet, Saudi Telecom Compa
22773     2226          3012      Cox Communications Inc.
18566     1996          2041      MegaPath Corporation
 6389     1671          2891      BellSouth.net Inc.
30036     1371          1525      Mediacom Communications Corp
 6983     1352          1705      EarthLink, Inc.
34984     1280          1973      TELLCOM ILETISIM HIZMETLERI A
 6147     1121          1574      Telefonica del Peru S.A.A.
11492     1120          1184      CABLE ONE, INC.
10620     1108          3141      Telmex Colombia S.A.

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

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

   1:1531      2:675       3:1         4:94        5:1745      6:21     
   8:1427     12:1827     13:4        14:1309     15:17       16:2      
  17:42       18:21       20:49       23:1191     24:1677     27:1851   
  31:1498     32:39       33:2        34:5        35:3        36:118    
  37:1874     38:1012     39:9        40:237      41:3008     42:259    
  43:1174     44:26       45:273      46:2174     47:35       48:2      
  49:795      50:791      52:12       54:69       55:5        56:8      
  57:37       58:1203     59:685      60:465      61:1775     62:1320   
  63:1907     64:4458     65:2269     66:4117     67:2050     68:1078   
  69:3264     70:951      71:441      72:1958     74:2603     75:318    
  76:405      77:1495     78:1269     79:802      80:1321     81:1352   
  82:817      83:671      84:686      85:1352     86:391      87:1062   
  88:515      89:1766     90:151      91:5950     92:803      93:2182   
  94:2005     95:2112     96:426      97:341      98:1072     99:45     
 100:73      101:810     102:1       103:6960    104:1394    105:63     
 106:223     107:897     108:609     109:2000    110:1077    111:1470   
 112:755     113:1038    114:836     115:1252    116:1344    117:1009   
 118:1683    119:1444    120:444     121:1029    122:2186    123:1728   
 124:1487    125:1577    128:637     129:381     130:381     131:1163   
 132:488     133:168     134:412     135:99      136:336     137:298    
 138:539     139:176     140:235     141:419     142:637     143:468    
 144:554     145:109     146:706     147:588     148:1104    149:463    
 150:561     151:610     152:490     153:239     154:392     155:736    
 156:405     157:331     158:264     159:976     160:373     161:624    
 162:1929    163:387     164:664     165:662     166:324     167:691    
 168:1275    169:149     170:1460    171:232     172:43      173:1522   
 174:700     175:652     176:1431    177:3798    178:2073    179:880    
 180:1899    181:1635    182:1733    183:622     184:736     185:3085   
 186:2679    187:1829    188:1972    189:1578    190:7636    191:957    
 192:8171    193:5591    194:4093    195:3649    196:1706    197:1025   
 198:5514    199:5520    200:6550    201:3039    202:9488    203:9066   
 204:4618    205:2742    206:2995    207:3003    208:3948    209:3920   
 210:3518    211:1860    212:2493    213:2248    214:876     215:69     
 216:5535    217:1808    218:674     219:467     220:1421    221:788    
 222:466     223:657    

End of report



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