[lacnog] Weekly Routing Table Report

Routing Analysis Role Account cscora en apnic.net
Vie Jul 20 16:12:05 BRT 2012


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, LacNOG,
TRNOG, CaribNOG and the RIPE Routing Working Group.

Daily listings are sent to bgp-stats en lists.apnic.net

For historical data, please see http://thyme.rand.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz en gmail.com>.

Routing Table Report   04:00 +10GMT Sat 21 Jul, 2012

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

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

BGP routing table entries examined:                              418048
    Prefixes after maximum aggregation:                          176224
    Deaggregation factor:                                          2.37
    Unique aggregates announced to Internet:                     203512
Total ASes present in the Internet Routing Table:                 41560
    Prefixes per ASN:                                             10.06
Origin-only ASes present in the Internet Routing Table:           33342
Origin ASes announcing only one prefix:                           15690
Transit ASes present in the Internet Routing Table:                5589
Transit-only ASes present in the Internet Routing Table:            132
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      26
    Max AS path prepend of ASN ( 36992)                              22
Prefixes from unregistered ASNs in the Routing Table:               368
    Unregistered ASNs in the Routing Table:                         134
Number of 32-bit ASNs allocated by the RIRs:                       3013
Number of 32-bit ASNs visible in the Routing Table:                2629
Prefixes from 32-bit ASNs in the Routing Table:                    6809
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            168
Number of addresses announced to Internet:                   2568092204
    Equivalent to 153 /8s, 17 /16s and 250 /24s
    Percentage of available address space announced:               69.3
    Percentage of allocated address space announced:               69.4
    Percentage of available address space allocated:               99.9
    Percentage of address space in use by end-sites:               93.0
Total number of prefixes smaller than registry allocations:      145304

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

Prefixes being announced by APNIC Region ASes:                   102118
    Total APNIC prefixes after maximum aggregation:               32802
    APNIC Deaggregation factor:                                    3.11
Prefixes being announced from the APNIC address blocks:          102579
    Unique aggregates announced from the APNIC address blocks:    42176
APNIC Region origin ASes present in the Internet Routing Table:    4719
    APNIC Prefixes per ASN:                                       21.74
APNIC Region origin ASes announcing only one prefix:               1246
APNIC Region transit ASes present in the Internet Routing Table:    745
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         26
Number of APNIC region 32-bit ASNs visible in the Routing Table:    250
Number of APNIC addresses announced to Internet:              704482432
    Equivalent to 41 /8s, 253 /16s and 140 /24s
    Percentage of available APNIC address space announced:         82.3

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 131072-133119
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:                    152850
    Total ARIN prefixes after maximum aggregation:                77506
    ARIN Deaggregation factor:                                     1.97
Prefixes being announced from the ARIN address blocks:           153890
    Unique aggregates announced from the ARIN address blocks:     68642
ARIN Region origin ASes present in the Internet Routing Table:    15199
    ARIN Prefixes per ASN:                                        10.13
ARIN Region origin ASes announcing only one prefix:                5763
ARIN Region transit ASes present in the Internet Routing Table:    1606
Average ARIN Region AS path length visible:                         4.1
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:      16
Number of ARIN addresses announced to Internet:              1071726976
    Equivalent to 63 /8s, 225 /16s and 65 /24s
    Percentage of available ARIN address space announced:          56.7

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, 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:                    103959
    Total RIPE prefixes after maximum aggregation:                55283
    RIPE Deaggregation factor:                                     1.88
Prefixes being announced from the RIPE address blocks:           106121
    Unique aggregates announced from the RIPE address blocks:     67350
RIPE Region origin ASes present in the Internet Routing Table:    16684
    RIPE Prefixes per ASN:                                         6.36
RIPE Region origin ASes announcing only one prefix:                8081
RIPE Region transit ASes present in the Internet Routing Table:    2715
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          26
Number of RIPE region 32-bit ASNs visible in the Routing Table:    1731
Number of RIPE addresses announced to Internet:               636890756
    Equivalent to 37 /8s, 246 /16s and 46 /24s
    Percentage of available RIPE address space announced:          92.6

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
                       40960-45055, 47104-52223, 56320-58367
                       59392-61439, 196608-199679
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:                   42631
    Total LACNIC prefixes after maximum aggregation:               8417
    LACNIC Deaggregation factor:                                   5.06
Prefixes being announced from the LACNIC address blocks:          45328
    Unique aggregates announced from the LACNIC address blocks:   21794
LACNIC Region origin ASes present in the Internet Routing Table:   1612
    LACNIC Prefixes per ASN:                                      28.12
LACNIC Region origin ASes announcing only one prefix:               430
LACNIC Region transit ASes present in the Internet Routing Table:   312
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   626
Number of LACNIC addresses announced to Internet:             112341928
    Equivalent to 6 /8s, 178 /16s and 51 /24s
    Percentage of available LACNIC address space announced:        67.0

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       262144-263167 plus 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:                   9521
    Total AfriNIC prefixes after maximum aggregation:              2161
    AfriNIC Deaggregation factor:                                  4.41
Prefixes being announced from the AfriNIC address blocks:          9962
    Unique aggregates announced from the AfriNIC address blocks:   3408
AfriNIC Region origin ASes present in the Internet Routing Table:   551
    AfriNIC Prefixes per ASN:                                     18.08
AfriNIC Region origin ASes announcing only one prefix:              170
AfriNIC Region transit ASes present in the Internet Routing Table:  123
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    6
Number of AfriNIC addresses announced to Internet:             41297664
    Equivalent to 2 /8s, 118 /16s and 39 /24s
    Percentage of available AfriNIC address space announced:       41.0

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4766     2721      11122        1244   Korea Telecom (KIX)
17974     2240        563          84   PT TELEKOMUNIKASI INDONESIA
 7545     1705        301          88   TPG Internet Pty Ltd
 4755     1616        388         163   TATA Communications formerly 
 9829     1305       1085          26   BSNL National Internet Backbo
 9583     1162         88         509   Sify Limited
 7552     1128       1062          11   Vietel Corporation
 4808     1118       2053         318   CNCGROUP IP network: China169
24560     1037        385         165   Bharti Airtel Ltd., Telemedia
 9498      989        294          73   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
 7029     3435        998         172   Windstream Communications Inc
 6389     3385       3773         186   bellsouth.net, inc. 
18566     2088        382         181   Covad Communications 
 1785     1937        681         131   PaeTec Communications, Inc.
22773     1680       2911         122   Cox Communications, Inc.
20115     1649       1571         615   Charter Communications 
 4323     1577       1028         383   Time Warner Telecom
30036     1390        270         779   Mediacom Communications Corp 
 7018     1247      10039         819   AT&T WorldNet Services
11492     1192        217         350   Cable One 

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
 8402     1645        544          16   Corbina telecom
 2118     1023         97          14   EUnet/RELCOM Autonomous Syste
12479      799        743          92   Uni2 Autonomous System
34984      730        189         174   BILISIM TELEKOM
 6830      711       2302         445   UPC Distribution Services
31148      705         37           9   FreeNet ISP
20940      688        223         540   Akamai Technologies European 
13188      635        100          10   Educational Network
 8551      577        364          61   Bezeq International
 3320      499       8443         409   Deutsche Telekom AG

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     2010        348         208   TVCABLE BOGOTA 
28573     1986       1212          87   NET Servicos de Comunicao S.A
 6503     1523        418          66   AVANTEL, S.A. 
 8151     1463       3044         345   UniNet S.A. de C.V. 
 7303     1458        934         196   Telecom Argentina Stet-France
 6458      856         81          15   GUATEL 
27947      717         74          94   Telconet S.A
11172      643         91          74   Servicios Alestra S.A de C.V 
 3816      596        250          83   Empresa Nacional de Telecomun
22047      583        326          15   VTR PUNTO NET 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      996        958          13   TEDATA
24863      863        274          32   LINKdotNET AS number
 6713      509        650          19   Itissalat Al-MAGHRIB
36998      483         48           3   MOBITEL
24835      286         80           8   RAYA Telecom - Egypt
 3741      262        905         223   The Internet Solution 
12258      197         28          62   Vodacom Internet Company 
29975      191        667          21   Vodacom
16637      169        664          86   MTN Network Solutions
29571      160         15          15   Ci Telecom Autonomous system 

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
 7029     3435        998         172   Windstream Communications Inc
 6389     3385       3773         186   bellsouth.net, inc. 
 4766     2721      11122        1244   Korea Telecom (KIX)
17974     2240        563          84   PT TELEKOMUNIKASI INDONESIA
18566     2088        382         181   Covad Communications 
10620     2010        348         208   TVCABLE BOGOTA 
28573     1986       1212          87   NET Servicos de Comunicao S.A
 1785     1937        681         131   PaeTec Communications, Inc.
 7545     1705        301          88   TPG Internet Pty Ltd
22773     1680       2911         122   Cox Communications, Inc.

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      3385        3199      bellsouth.net, inc. 
17974      2240        2156      PT TELEKOMUNIKASI INDONESIA
18566      2088        1907      Covad Communications 
28573      1986        1899      NET Servicos de Comunicao S.A
 1785      1937        1806      PaeTec Communications, Inc.
10620      2010        1802      TVCABLE BOGOTA 
 8402      1645        1629      Corbina telecom
 7545      1705        1617      TPG Internet Pty Ltd
22773      1680        1558      Cox Communications, Inc.
 4766      2721        1477      Korea Telecom (KIX)

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

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS  Designation  Network              Transit AS  Description
59407   UNALLOCATED  5.134.16.0/21        51167       Giga-Hosting GmbH
59457   UNALLOCATED  5.149.64.0/19        35567       DASTO semtel d.o.o.
15132   UNALLOCATED  12.9.150.0/24         7018       AT&T WorldNet Servic
25639   UNALLOCATED  12.41.169.0/24        7018       AT&T WorldNet Servic
13317   UNALLOCATED  12.44.10.0/24         7018       AT&T WorldNet Servic
23502   UNALLOCATED  12.44.44.0/24         7018       AT&T WorldNet Servic
17300   UNALLOCATED  12.45.103.0/24        7018       AT&T WorldNet Servic
17300   UNALLOCATED  12.45.110.0/24         701       UUNET Technologies, 
16476   UNALLOCATED  12.46.27.0/24         7018       AT&T WorldNet Servic
14764   UNALLOCATED  12.108.237.0/24       7018       AT&T WorldNet Servic

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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
198.18.0.0/15        14744     Internap Network Services 

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

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

Network            Origin AS  Description
5.152.176.0/24       25577     C4L main AS
5.153.64.0/19        12703     edNETs Autonomous System
5.154.0.0/23         56465     Sistem Soft Network SRL
14.192.0.0/22        45464     Room 201, TGU Bldg
14.192.4.0/22        45464     Room 201, TGU Bldg
14.192.8.0/22        45464     Room 201, TGU Bldg
14.192.12.0/22       45464     Room 201, TGU Bldg
14.192.16.0/22       45464     Room 201, TGU Bldg
14.192.20.0/22       45464     Room 201, TGU Bldg
14.192.24.0/22       45464     Room 201, TGU Bldg

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        /8:19       /9:12      /10:28      /11:82      /12:236     
/13:473     /14:844     /15:1524    /16:12297   /17:6372    /18:10763   
/19:20919   /20:29792   /21:31641   /22:41286   /23:39374   /24:218584  
/25:1212    /26:1472    /27:854     /28:163     /29:60      /30:18      
/31:0       /32:23      

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

  ASN   No of nets  Total ann.   Description
 7029     2774          3435      Windstream Communications Inc
18566     2038          2088      Covad Communications 
 6389     1865          3385      bellsouth.net, inc. 
 8402     1343          1645      Corbina telecom
30036     1325          1390      Mediacom Communications Corp 
11492     1155          1192      Cable One 
22773     1107          1680      Cox Communications, Inc.
 6503     1051          1523      AVANTEL, S.A. 
 1785     1044          1937      PaeTec Communications, Inc.
 7011      930          1191      Citizens Utilities 

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

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

   1:577       2:737       3:1         4:13        5:153       6:3      
   8:438      12:2012     13:1        14:640      15:11       16:3      
  17:6        20:24       23:196      24:1796     27:1340     31:1018   
  32:56       33:2        34:2        36:8        37:662      38:826    
  39:1        40:134      41:2894     42:142      44:3        46:1524   
  47:2        49:432      50:558      52:13       54:14       55:8      
  56:1        57:31       58:983      59:529      60:244      61:1337   
  62:920      63:2034     64:4250     65:2245     66:4497     67:2014   
  68:1157     69:3201     70:988      71:514      72:1860     74:2603   
  75:490      76:334      77:939      78:921      79:492      80:1233   
  81:947      82:630      83:535      84:506      85:1150     86:423    
  87:928      88:347      89:1673     90:303      91:5039     92:581    
  93:1300     94:1560     95:1248     96:401      97:323      98:878    
  99:39      100:22      101:258     103:1288    105:464     106:115    
 107:189     108:384     109:1461    110:783     111:936     112:429    
 113:641     114:657     115:908     116:919     117:730     118:902    
 119:1231    120:356     121:801     122:1652    123:1167    124:1379   
 125:1260    128:551     129:185     130:267     131:632     132:300    
 133:22      134:247     135:61      136:215     137:241     138:334    
 139:177     140:496     141:253     142:432     143:370     144:490    
 145:77      146:510     147:283     148:770     149:319     150:149    
 151:186     152:473     153:176     154:19      155:406     156:222    
 157:381     158:190     159:628     160:341     161:264     162:379    
 163:192     164:674     165:413     166:588     167:529     168:914    
 169:127     170:900     171:149     172:5       173:1734    174:612    
 175:438     176:569     177:948     178:1641    180:1317    181:112    
 182:997     183:233     184:555     186:2040    187:1090    188:1370   
 189:1568    190:6121    192:6016    193:5542    194:4488    195:3210   
 196:1210    197:177     198:3681    199:4936    200:5991    201:1966   
 202:8695    203:8668    204:4392    205:2545    206:2791    207:2827   
 208:4046    209:3628    210:2783    211:1564    212:1973    213:1791   
 214:875     215:85      216:5085    217:1568    218:545     219:337    
 220:1222    221:572     222:336     223:347    

End of report



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