Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Nov 28 18:11:41 UTC 2014


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 29 Nov, 2014

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

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

BGP routing table entries examined:                              519301
    Prefixes after maximum aggregation:                          200376
    Deaggregation factor:                                          2.59
    Unique aggregates announced to Internet:                     254950
Total ASes present in the Internet Routing Table:                 48708
    Prefixes per ASN:                                             10.66
Origin-only ASes present in the Internet Routing Table:           36301
Origin ASes announcing only one prefix:                           16312
Transit ASes present in the Internet Routing Table:                6231
Transit-only ASes present in the Internet Routing Table:            178
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      73
    Max AS path prepend of ASN ( 55644)                              66
Prefixes from unregistered ASNs in the Routing Table:              1637
    Unregistered ASNs in the Routing Table:                         425
Number of 32-bit ASNs allocated by the RIRs:                       8032
Number of 32-bit ASNs visible in the Routing Table:                6176
Prefixes from 32-bit ASNs in the Routing Table:                   22081
Number of bogon 32-bit ASNs visible in the Routing Table:             6
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            357
Number of addresses announced to Internet:                   2713210500
    Equivalent to 161 /8s, 184 /16s and 78 /24s
    Percentage of available address space announced:               73.3
    Percentage of allocated address space announced:               73.3
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               97.0
Total number of prefixes smaller than registry allocations:      176990

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

Prefixes being announced by APNIC Region ASes:                   127927
    Total APNIC prefixes after maximum aggregation:               37096
    APNIC Deaggregation factor:                                    3.45
Prefixes being announced from the APNIC address blocks:          132411
    Unique aggregates announced from the APNIC address blocks:    54049
APNIC Region origin ASes present in the Internet Routing Table:    4994
    APNIC Prefixes per ASN:                                       26.51
APNIC Region origin ASes announcing only one prefix:               1201
APNIC Region transit ASes present in the Internet Routing Table:    872
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         73
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1193
Number of APNIC addresses announced to Internet:              737464576
    Equivalent to 43 /8s, 244 /16s and 209 /24s
    Percentage of available APNIC address space announced:         86.2

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:                    171629
    Total ARIN prefixes after maximum aggregation:                85549
    ARIN Deaggregation factor:                                     2.01
Prefixes being announced from the ARIN address blocks:           173623
    Unique aggregates announced from the ARIN address blocks:     82104
ARIN Region origin ASes present in the Internet Routing Table:    16388
    ARIN Prefixes per ASN:                                        10.59
ARIN Region origin ASes announcing only one prefix:                6078
ARIN Region transit ASes present in the Internet Routing Table:    1712
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          20
Number of ARIN region 32-bit ASNs visible in the Routing Table:     268
Number of ARIN addresses announced to Internet:              1054144704
    Equivalent to 62 /8s, 212 /16s and 248 /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:                    126322
    Total RIPE prefixes after maximum aggregation:                63818
    RIPE Deaggregation factor:                                     1.98
Prefixes being announced from the RIPE address blocks:           132057
    Unique aggregates announced from the RIPE address blocks:     82786
RIPE Region origin ASes present in the Internet Routing Table:    17826
    RIPE Prefixes per ASN:                                         7.41
RIPE Region origin ASes announcing only one prefix:                8181
RIPE Region transit ASes present in the Internet Routing Table:    2933
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    3235
Number of RIPE addresses announced to Internet:               692427396
    Equivalent to 41 /8s, 69 /16s and 154 /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:                   58799
    Total LACNIC prefixes after maximum aggregation:              10857
    LACNIC Deaggregation factor:                                   5.42
Prefixes being announced from the LACNIC address blocks:          67561
    Unique aggregates announced from the LACNIC address blocks:   30814
LACNIC Region origin ASes present in the Internet Routing Table:   2378
    LACNIC Prefixes per ASN:                                      28.41
LACNIC Region origin ASes announcing only one prefix:               644
LACNIC Region transit ASes present in the Internet Routing Table:   472
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        30
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1406
Number of LACNIC addresses announced to Internet:             167660608
    Equivalent to 9 /8s, 254 /16s and 76 /24s
    Percentage of available LACNIC address space announced:        99.9

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-265628 + ERX transfers
LACNIC Address Blocks  177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
                       191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes:                  12415
    Total AfriNIC prefixes after maximum aggregation:              3012
    AfriNIC Deaggregation factor:                                  4.12
Prefixes being announced from the AfriNIC address blocks:         13292
    Unique aggregates announced from the AfriNIC address blocks:   4879
AfriNIC Region origin ASes present in the Internet Routing Table:   738
    AfriNIC Prefixes per ASN:                                     18.01
AfriNIC Region origin ASes announcing only one prefix:              208
AfriNIC Region transit ASes present in the Internet Routing Table:  155
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:   74
Number of AfriNIC addresses announced to Internet:             60115456
    Equivalent to 3 /8s, 149 /16s and 74 /24s
    Percentage of available AfriNIC address space announced:       59.7

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     2957      11585         931   Korea Telecom
17974     2840        904          77   PT Telekomunikasi Indonesia
 7545     2466        337         129   TPG Telecom Limited
 4755     1930        416         192   TATA Communications formerly 
 9829     1671       1323          28   National Internet Backbone
 4538     1547       4190          71   China Education and Research 
 9808     1495       6655          16   Guangdong Mobile Communicatio
 4808     1429       2213         427   CNCGROUP IP network China169 
 9583     1365        112         563   Sify Limited
 9498     1318        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
 6389     2892       3688          51   BellSouth.net Inc.
22773     2851       2956         144   Cox Communications Inc.
18566     2044        379         183   MegaPath Corporation
20115     1827       1805         472   Charter Communications
 4323     1643       1053         412   tw telecom holdings, inc.
 6983     1629        867         251   EarthLink, Inc.
30036     1503        312         594   Mediacom Communications Corp
  701     1424      11265         704   MCI Communications Services, 
22561     1310        411         244   CenturyTel Internet Holdings,
11492     1227        217         532   CABLE ONE, INC.

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     1898        298         356   TELLCOM ILETISIM HIZMETLERI A
20940     1509        588        1114   Akamai International B.V.
 8402     1377        544          15   OJSC "Vimpelcom"
31148     1045         45          21   Freenet Ltd.
13188      997         95          60   TOV "Bank-Inform"
 8551      900        373          44   Bezeq International-Ltd
 6849      834        356          26   JSC "Ukrtelecom"
 9198      824        346          32   JSC Kazakhtelecom
 6830      817       2339         439   Liberty Global Operations B.V
12479      777        788          94   France Telecom Espana SA

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     3046        494         247   Telmex Colombia S.A.
28573     2322       2263         110   NET Serviços de Comunicação S
 6147     1806        374          30   Telefonica del Peru S.A.A.
 7303     1733       1123         242   Telecom Argentina S.A.
 8151     1481       3031         423   Uninet S.A. de C.V.
 6503     1228        433          58   Axtel, S.A.B. de C.V.
 7738      999       1882          41   Telemar Norte Leste S.A.
26615      914       2325          35   Tim Celular S.A.
 3816      907        394         146   COLOMBIA TELECOMUNICACIONES S
27947      886        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     1410        958          13   TE-AS
24863      958        280          26   Link Egypt (Link.NET)
36903      415        209         129   Office National des Postes et
36992      368        824          29   ETISALAT MISR
24835      308        144           9   Vodafone Data
37492      291        133          61   Orange Tunisie
37054      257         19           6   Data Telecom Service
 3741      249        920         212   Internet Solutions
29571      245         22          17   Cote d'Ivoire Telecom
37457      185        160           4   Telkom SA Ltd.

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     3046        494         247   Telmex Colombia S.A.
 4766     2957      11585         931   Korea Telecom
 6389     2892       3688          51   BellSouth.net Inc.
22773     2851       2956         144   Cox Communications Inc.
17974     2840        904          77   PT Telekomunikasi Indonesia
 7545     2466        337         129   TPG Telecom Limited
28573     2322       2263         110   NET Serviços de Comunicação S
18566     2044        379         183   MegaPath Corporation
 4755     1930        416         192   TATA Communications formerly 
34984     1898        298         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      2892        2841      BellSouth.net Inc.
17974      2840        2763      PT Telekomunikasi Indonesia
22773      2851        2707      Cox Communications Inc.
 7545      2466        2337      TPG Telecom Limited
28573      2322        2212      NET Serviços de Comunicação S
 4766      2957        2026      Korea Telecom
18566      2044        1861      MegaPath Corporation
 6147      1806        1776      Telefonica del Peru S.A.A.
 4755      1930        1738      TATA Communications formerly 
 9829      1671        1643      National Internet Backbone

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
20260   UNALLOCATED  8.25.160.0/24         3356       Level 3 Communicatio
20260   UNALLOCATED  8.25.161.0/24         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

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

Network            Origin AS  Description
5.100.241.0/24       23456     32bit Transition AS
23.252.224.0/20      62502     Xnet Media LLC
23.252.224.0/21      62502     Xnet Media LLC
23.252.232.0/21      62502     Xnet Media LLC
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<<
41.73.1.0/24         37004     >>UNKNOWN<<
41.73.2.0/24         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      /10:31      /11:92      /12:264     
/13:500     /14:999     /15:1726    /16:13044   /17:7143    /18:11921   
/19:24778   /20:35343   /21:37591   /22:55689   /23:48420   /24:278771  
/25:1110    /26:1089    /27:704     /28:16      /29:19      /30:11      
/31:0       /32:12      

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

  ASN   No of nets  Total ann.   Description
22773     2063          2851      Cox Communications Inc.
18566     1999          2044      MegaPath Corporation
 6389     1672          2892      BellSouth.net Inc.
 6147     1357          1806      Telefonica del Peru S.A.A.
30036     1349          1503      Mediacom Communications Corp
 6983     1309          1629      EarthLink, Inc.
34984     1205          1898      TELLCOM ILETISIM HIZMETLERI A
11492     1172          1227      CABLE ONE, INC.
10620     1077          3046      Telmex Colombia S.A.
 8402     1042          1377      OJSC "Vimpelcom"

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

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

   1:1364      2:676       3:3         4:16        5:1226      6:23     
   8:770      12:1845     13:5        14:1193     15:17       16:2      
  17:42       18:21       20:51       23:1022     24:1671     27:1805   
  31:1407     32:39       33:2        34:5        36:153      37:1851   
  38:976      39:14       40:225      41:2998     42:272      43:695    
  44:19       45:84       46:2104     47:30       49:762      50:795    
  52:12       54:60       55:6        56:6        57:31       58:1158   
  59:661      60:449      61:1706     62:1303     63:1843     64:4397   
  65:2282     66:4109     67:2007     68:1046     69:3263     70:873    
  71:434      72:1982     74:2601     75:321      76:410      77:1522   
  78:956      79:782      80:1328     81:1278     82:816      83:672    
  84:673      85:1356     86:448      87:1190     88:507      89:1827   
  90:140      91:5832     92:797      93:1667     94:1948     95:1305   
  96:426      97:341      98:1030     99:48      100:67      101:759    
 103:6173    104:745     105:171     106:190     107:866     108:609    
 109:1998    110:1054    111:1426    112:732     113:917     114:802    
 115:1220    116:1233    117:1008    118:1596    119:1363    120:442    
 121:989     122:2209    123:1704    124:1460    125:1544    128:653    
 129:391     130:382     131:987     132:429     133:164     134:324    
 135:83      136:332     137:303     138:388     139:162     140:225    
 141:423     142:636     143:435     144:508     145:112     146:694    
 147:561     148:1059    149:400     150:519     151:646     152:482    
 153:247     154:413     155:640     156:386     157:332     158:251    
 159:935     160:335     161:616     162:1819    163:373     164:645    
 165:674     166:300     167:702     168:1162    169:130     170:1423   
 171:215     172:60      173:1583    174:708     175:585     176:1550   
 177:3690    178:2109    179:790     180:1813    181:1637    182:1672   
 183:527     184:705     185:2408    186:2925    187:1667    188:2018   
 189:1531    190:7925    191:818     192:7846    193:5563    194:4064   
 195:3616    196:1653    197:842     198:5340    199:5466    200:6536   
 201:2949    202:9453    203:9006    204:4687    205:2680    206:3003   
 207:2972    208:3924    209:3809    210:3465    211:1846    212:2452   
 213:2207    214:833     215:87      216:5610    217:1716    218:650    
 219:398     220:1298    221:773     222:439     223:662    

End of report


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