[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jan 9 18:12:16 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 10 Jan, 2015

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

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

BGP routing table entries examined:                              525347
    Prefixes after maximum aggregation (per Origin AS):          201896
    Deaggregation factor:                                          2.60
    Unique aggregates announced (without unneeded subnets):      256875
Total ASes present in the Internet Routing Table:                 49026
    Prefixes per ASN:                                             10.72
Origin-only ASes present in the Internet Routing Table:           36384
Origin ASes announcing only one prefix:                           16299
Transit ASes present in the Internet Routing Table:                6209
Transit-only ASes present in the Internet Routing Table:            173
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                     107
    Max AS path prepend of ASN ( 55644)                             100
Prefixes from unregistered ASNs in the Routing Table:              1623
    Unregistered ASNs in the Routing Table:                         422
Number of 32-bit ASNs allocated by the RIRs:                       8322
Number of 32-bit ASNs visible in the Routing Table:                6433
Prefixes from 32-bit ASNs in the Routing Table:                   23156
Number of bogon 32-bit ASNs visible in the Routing Table:            11
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            401
Number of addresses announced to Internet:                   2719145860
    Equivalent to 162 /8s, 18 /16s and 223 /24s
    Percentage of available address space announced:               73.4
    Percentage of allocated address space announced:               73.4
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               97.1
Total number of prefixes smaller than registry allocations:      176964

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

Prefixes being announced by APNIC Region ASes:                   130059
    Total APNIC prefixes after maximum aggregation:               37934
    APNIC Deaggregation factor:                                    3.43
Prefixes being announced from the APNIC address blocks:          134952
    Unique aggregates announced from the APNIC address blocks:    55075
APNIC Region origin ASes present in the Internet Routing Table:    5010
    APNIC Prefixes per ASN:                                       26.94
APNIC Region origin ASes announcing only one prefix:               1218
APNIC Region transit ASes present in the Internet Routing Table:    861
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                        107
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1241
Number of APNIC addresses announced to Internet:              740849792
    Equivalent to 44 /8s, 40 /16s and 120 /24s
    Percentage of available APNIC address space announced:         86.6

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:                    174417
    Total ARIN prefixes after maximum aggregation:                86316
    ARIN Deaggregation factor:                                     2.02
Prefixes being announced from the ARIN address blocks:           176340
    Unique aggregates announced from the ARIN address blocks:     82430
ARIN Region origin ASes present in the Internet Routing Table:    16418
    ARIN Prefixes per ASN:                                        10.74
ARIN Region origin ASes announcing only one prefix:                6074
ARIN Region transit ASes present in the Internet Routing Table:    1713
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          19
Number of ARIN region 32-bit ASNs visible in the Routing Table:     311
Number of ARIN addresses announced to Internet:              1055687168
    Equivalent to 62 /8s, 236 /16s and 130 /24s
    Percentage of available ARIN address space announced:          55.8

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, 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:                    125943
    Total RIPE prefixes after maximum aggregation:                63692
    RIPE Deaggregation factor:                                     1.98
Prefixes being announced from the RIPE address blocks:           132016
    Unique aggregates announced from the RIPE address blocks:     82815
RIPE Region origin ASes present in the Internet Routing Table:    17833
    RIPE Prefixes per ASN:                                         7.40
RIPE Region origin ASes announcing only one prefix:                8158
RIPE Region transit ASes present in the Internet Routing Table:    2930
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    3333
Number of RIPE addresses announced to Internet:               692667524
    Equivalent to 41 /8s, 73 /16s and 68 /24s
    Percentage of available RIPE address space announced:         100.7

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, 196608-202239
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:                   59140
    Total LACNIC prefixes after maximum aggregation:              10937
    LACNIC Deaggregation factor:                                   5.41
Prefixes being announced from the LACNIC address blocks:          68189
    Unique aggregates announced from the LACNIC address blocks:   31219
LACNIC Region origin ASes present in the Internet Routing Table:   2395
    LACNIC Prefixes per ASN:                                      28.47
LACNIC Region origin ASes announcing only one prefix:               645
LACNIC Region transit ASes present in the Internet Routing Table:   471
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:  1464
Number of LACNIC addresses announced to Internet:             167448448
    Equivalent to 9 /8s, 251 /16s and 15 /24s
    Percentage of available LACNIC address space announced:        99.8

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:                  12518
    Total AfriNIC prefixes after maximum aggregation:              2973
    AfriNIC Deaggregation factor:                                  4.21
Prefixes being announced from the AfriNIC address blocks:         13449
    Unique aggregates announced from the AfriNIC address blocks:   4979
AfriNIC Region origin ASes present in the Internet Routing Table:   734
    AfriNIC Prefixes per ASN:                                     18.32
AfriNIC Region origin ASes announcing only one prefix:              204
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:   84
Number of AfriNIC addresses announced to Internet:             60960512
    Equivalent to 3 /8s, 162 /16s and 47 /24s
    Percentage of available AfriNIC address space announced:       60.6

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     2915      11556         911   Korea Telecom
17974     2825        904          77   PT Telekomunikasi Indonesia
 7545     2495        336         128   TPG Telecom Limited
 4755     1931        418         191   TATA Communications formerly 
 4538     1757       4190          71   China Education and Research 
 9829     1675       1323          28   National Internet Backbone
 9808     1523       6719          19   Guangdong Mobile Communicatio
 4808     1441       2205         433   CNCGROUP IP network China169 
 9583     1388        115         571   Sify Limited
 9498     1300        336          97   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     2931       2955         141   Cox Communications Inc.
 6389     2891       3688          51   BellSouth.net Inc.
 3356     2560      10684         473   Level 3 Communications, Inc.
18566     2042        379         183   MegaPath Corporation
20115     1854       1825         450   Charter Communications
 6983     1626        867         245   EarthLink, Inc.
 4323     1623       1037         408   tw telecom holdings, inc.
30036     1511        312         574   Mediacom Communications Corp
  701     1412      11278         696   MCI Communications Services, 
22561     1339        411         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
34984     1933        300         356   TELLCOM ILETISIM HIZMETLERI A
20940     1540        598        1136   Akamai International B.V.
 8402     1445        544          15   OJSC "Vimpelcom"
31148     1045         45          21   Freenet Ltd.
13188     1036         97          54   TOV "Bank-Inform"
 8551      905        373          48   Bezeq International-Ltd
 9198      859        349          26   JSC Kazakhtelecom
12479      830        794          85   France Telecom Espana SA
 6830      824       2340         444   Liberty Global Operations B.V
 9121      599       1693          22   Turk Telekomunikasyon Anonim 

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     3055        495         247   Telmex Colombia S.A.
28573     2317       2127         114   NET Serviços de Comunicação S
 6147     1790        374          30   Telefonica del Peru S.A.A.
 7303     1768       1172         237   Telecom Argentina S.A.
 8151     1486       3054         431   Uninet S.A. de C.V.
 6503     1227        417          57   Axtel, S.A.B. de C.V.
 7738     1000       1882          42   Telemar Norte Leste S.A.
 3816      914        396         148   COLOMBIA TELECOMUNICACIONES S
26615      913       2325          35   Tim Celular S.A.
27947      890        129          50   Telconet S.A

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     1486        958          13   TE-AS
24863      951        284          26   Link Egypt (Link.NET)
36903      482        243          89   Office National des Postes et
36992      369        845          30   ETISALAT MISR
37492      347        145          64   Orange Tunisie
24835      295        144           9   Vodafone Data
 3741      248        921         213   Internet Solutions
29571      233         21          12   Cote d'Ivoire Telecom
36947      197        807          13   Telecom Algeria
15706      176         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     3055        495         247   Telmex Colombia S.A.
22773     2931       2955         141   Cox Communications Inc.
 4766     2915      11556         911   Korea Telecom
 6389     2891       3688          51   BellSouth.net Inc.
17974     2825        904          77   PT Telekomunikasi Indonesia
 3356     2560      10684         473   Level 3 Communications, Inc.
 7545     2495        336         128   TPG Telecom Limited
28573     2317       2127         114   NET Serviços de Comunicação S
18566     2042        379         183   MegaPath Corporation
34984     1933        300         356   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
 6389      2891        2840      BellSouth.net Inc.
22773      2931        2790      Cox Communications Inc.
17974      2825        2748      PT Telekomunikasi Indonesia
 7545      2495        2367      TPG Telecom Limited
28573      2317        2203      NET Serviços de Comunicação S
 3356      2560        2087      Level 3 Communications, Inc.
 4766      2915        2004      Korea Telecom
18566      2042        1859      MegaPath Corporation
 6147      1790        1760      Telefonica del Peru S.A.A.
 4755      1931        1740      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
23.92.160.0/24       14013     EPSON America (Factory Automa
23.92.161.0/24       14013     EPSON America (Factory Automa
23.252.224.0/20      62502     >>UNKNOWN<<
23.252.224.0/21      62502     >>UNKNOWN<<
23.252.232.0/21      62502     >>UNKNOWN<<
24.231.96.0/24       21548     MTO Telecom Inc.
27.100.7.0/24        56096     >>UNKNOWN<<
31.217.248.0/21      44902     COVAGE NETWORKS SASU
37.16.88.0/23        57652     >>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      /10:31      /11:92      /12:265     
/13:502     /14:997     /15:1726    /16:13047   /17:7178    /18:11969   
/19:24822   /20:35620   /21:38222   /22:56653   /23:49225   /24:282014  
/25:1143    /26:1083    /27:679     /28:17      /29:15      /30:10      
/31:0       /32:9       

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

  ASN   No of nets  Total ann.   Description
22773     2145          2931      Cox Communications Inc.
18566     1997          2042      MegaPath Corporation
 6389     1671          2891      BellSouth.net Inc.
30036     1358          1511      Mediacom Communications Corp
 6147     1333          1790      Telefonica del Peru S.A.A.
 6983     1312          1626      EarthLink, Inc.
34984     1238          1933      TELLCOM ILETISIM HIZMETLERI A
11492     1123          1182      CABLE ONE, INC.
 8402     1109          1445      OJSC "Vimpelcom"
10620     1090          3055      Telmex Colombia S.A.

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

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

   1:1415      2:672       3:3         4:95        5:1208      6:21     
   8:1407     11:1        12:1838     13:4        14:1235     15:17     
  16:2        17:45       18:21       20:51       23:1087     24:1669   
  27:1816     31:1472     32:39       33:2        34:5        35:1      
  36:138      37:1871     38:968      39:14       40:228      41:3035   
  42:288      43:885      44:21       45:86       46:2137     47:32     
  49:730      50:783      52:12       54:60       55:8        56:8      
  57:33       58:1119     59:677      60:451      61:1752     62:1283   
  63:1886     64:4395     65:2262     66:4070     67:2004     68:1037   
  69:3248     70:908      71:426      72:1962     74:2617     75:314    
  76:410      77:1366     78:1055     79:784      80:1322     81:1303   
  82:796      83:670      84:677      85:1307     86:382      87:1199   
  88:522      89:1770     90:138      91:5878     92:785      93:1678   
  94:1936     95:1418     96:420      97:338      98:1046     99:48     
 100:70      101:799     103:6447    104:972     105:110     106:199    
 107:890     108:610     109:2037    110:1059    111:1462    112:745    
 113:958     114:802     115:1244    116:1319    117:1037    118:1672   
 119:1393    120:439     121:1020    122:2196    123:1715    124:1470   
 125:1523    128:643     129:373     130:384     131:1081    132:446    
 133:167     134:389     135:88      136:331     137:300     138:387    
 139:177     140:224     141:421     142:619     143:444     144:511    
 145:111     146:705     147:569     148:1062    149:406     150:542    
 151:594     152:473     153:245     154:289     155:667     156:392    
 157:331     158:260     159:949     160:369     161:631     162:1861   
 163:371     164:647     165:662     166:322     167:710     168:1159   
 169:135     170:1427    171:221     172:50      173:1566    174:705    
 175:598     176:1480    177:3682    178:2098    179:810     180:1849   
 181:1695    182:1695    183:574     184:728     185:2609    186:2940   
 187:1688    188:2000    189:1550    190:7898    191:837     192:7977   
 193:5561    194:4062    195:3631    196:1694    197:867     198:5460   
 199:5495    200:6544    201:2963    202:9509    203:9025    204:4655   
 205:2703    206:3003    207:2969    208:3908    209:3853    210:3492   
 211:1836    212:2528    213:2257    214:839     215:77      216:5526   
 217:1764    218:663     219:457     220:1316    221:783     222:460    
 223:680    

End of report


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