Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Dec 20 18:07:35 UTC 2013


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 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 21 Dec, 2013

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

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

BGP routing table entries examined:                              475800
    Prefixes after maximum aggregation:                          190361
    Deaggregation factor:                                          2.50
    Unique aggregates announced to Internet:                     236234
Total ASes present in the Internet Routing Table:                 45782
    Prefixes per ASN:                                             10.39
Origin-only ASes present in the Internet Routing Table:           35490
Origin ASes announcing only one prefix:                           16278
Transit ASes present in the Internet Routing Table:                5971
Transit-only ASes present in the Internet Routing Table:            177
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      53
    Max AS path prepend of ASN ( 50404)                              51
Prefixes from unregistered ASNs in the Routing Table:              1068
    Unregistered ASNs in the Routing Table:                         305
Number of 32-bit ASNs allocated by the RIRs:                       5558
Number of 32-bit ASNs visible in the Routing Table:                4321
Prefixes from 32-bit ASNs in the Routing Table:                   13537
Number of bogon 32-bit ASNs visible in the Routing Table:             1
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:           1466
Number of addresses announced to Internet:                   2660917980
    Equivalent to 158 /8s, 154 /16s and 98 /24s
    Percentage of available address space announced:               71.9
    Percentage of allocated address space announced:               71.9
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               95.3
Total number of prefixes smaller than registry allocations:      166277

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

Prefixes being announced by APNIC Region ASes:                   112978
    Total APNIC prefixes after maximum aggregation:               34171
    APNIC Deaggregation factor:                                    3.31
Prefixes being announced from the APNIC address blocks:          115264
    Unique aggregates announced from the APNIC address blocks:    48154
APNIC Region origin ASes present in the Internet Routing Table:    4877
    APNIC Prefixes per ASN:                                       23.63
APNIC Region origin ASes announcing only one prefix:               1211
APNIC Region transit ASes present in the Internet Routing Table:    839
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         38
Number of APNIC region 32-bit ASNs visible in the Routing Table:    794
Number of APNIC addresses announced to Internet:              729350848
    Equivalent to 43 /8s, 121 /16s and 2 /24s
    Percentage of available APNIC address space announced:         85.2

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-63999, 131072-133631
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:                    163428
    Total ARIN prefixes after maximum aggregation:                81908
    ARIN Deaggregation factor:                                     2.00
Prefixes being announced from the ARIN address blocks:           164196
    Unique aggregates announced from the ARIN address blocks:     75953
ARIN Region origin ASes present in the Internet Routing Table:    15934
    ARIN Prefixes per ASN:                                        10.30
ARIN Region origin ASes announcing only one prefix:                6002
ARIN Region transit ASes present in the Internet Routing Table:    1672
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:      49
Number of ARIN addresses announced to Internet:              1075463552
    Equivalent to 64 /8s, 26 /16s and 69 /24s
    Percentage of available ARIN address space announced:          56.9

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:                    119980
    Total RIPE prefixes after maximum aggregation:                61371
    RIPE Deaggregation factor:                                     1.95
Prefixes being announced from the RIPE address blocks:           123716
    Unique aggregates announced from the RIPE address blocks:     79314
RIPE Region origin ASes present in the Internet Routing Table:    17576
    RIPE Prefixes per ASN:                                         7.04
RIPE Region origin ASes announcing only one prefix:                8306
RIPE Region transit ASes present in the Internet Routing Table:    2831
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          53
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2537
Number of RIPE addresses announced to Internet:               655696868
    Equivalent to 39 /8s, 21 /16s and 35 /24s
    Percentage of available RIPE address space announced:          95.3

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, 196608-200191
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:                   53303
    Total LACNIC prefixes after maximum aggregation:              10055
    LACNIC Deaggregation factor:                                   5.30
Prefixes being announced from the LACNIC address blocks:          58687
    Unique aggregates announced from the LACNIC address blocks:   27431
LACNIC Region origin ASes present in the Internet Routing Table:   2059
    LACNIC Prefixes per ASN:                                      28.50
LACNIC Region origin ASes announcing only one prefix:               551
LACNIC Region transit ASes present in the Internet Routing Table:   398
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        35
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   933
Number of LACNIC addresses announced to Internet:             146973752
    Equivalent to 8 /8s, 194 /16s and 164 /24s
    Percentage of available LACNIC address space announced:        87.6

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 262144-263679 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:                  11809
    Total AfriNIC prefixes after maximum aggregation:              2611
    AfriNIC Deaggregation factor:                                  4.52
Prefixes being announced from the AfriNIC address blocks:         12471
    Unique aggregates announced from the AfriNIC address blocks:   4238
AfriNIC Region origin ASes present in the Internet Routing Table:   697
    AfriNIC Prefixes per ASN:                                     17.89
AfriNIC Region origin ASes announcing only one prefix:              208
AfriNIC Region transit ASes present in the Internet Routing Table:  147
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:    8
Number of AfriNIC addresses announced to Internet:             48643712
    Equivalent to 2 /8s, 230 /16s and 62 /24s
    Percentage of available AfriNIC address space announced:       48.3

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4766     2948      11558         952   Korea Telecom (KIX)
17974     2731        902          88   PT TELEKOMUNIKASI INDONESIA
 7545     2121        319         112   TPG Internet Pty Ltd
 4755     1804        392         191   TATA Communications formerly 
 9829     1558       1251          42   BSNL National Internet Backbo
 9583     1300        100         537   Sify Limited
 9498     1229        309          72   BHARTI Airtel Ltd.
 4808     1145       2121         346   CNCGROUP IP network: China169
 7552     1134       1080          13   Vietel Corporation
24560     1098        382         167   Bharti Airtel Ltd., Telemedia

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     3028       3688          53   BellSouth.net Inc.
22773     2303       2939         139   Cox Communications, Inc.
 1785     2146        686         131   PaeTec Communications, Inc.
18566     2050        379         178   MegaPath Corporation
20115     1681       1662         593   Charter Communications 
 4323     1630       1081         413   Time Warner Telecom
  701     1508      11144         781   MCI Communications Services, 
30036     1375        309         574   Mediacom Communications Corp 
 7018     1308      17746         853   AT&T WorldNet Services
 6983     1295        756         580   ITC^Deltacom 

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     1884        544          16   OJSC "Vimpelcom"
34984     1366        243         226   TELLCOM ILETISIM HIZMETLERI A
20940     1212        458         913   Akamai Technologies European 
31148     1011         45          19   FreeNet ISP
13188      919         99          40   TOV "Bank-Inform"
 6849      860        363          38   JSC UKRTELECOM,
 8551      846        370          38   Bezeq International
 6830      772       2327         425   UPC Distribution Services
12479      683        798          53   Uni2 Autonomous System
35228      551        246          16   Avatar Broadband Limited

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
28573     3430       1839          90   NET Servicos de Comunicao S.A
10620     2691        435         209   Telmex Colombia S.A.
18881     1778        908          20   Global Village Telecom 
 7303     1743       1163         230   Telecom Argentina Stet-France
 8151     1371       2857         429   UniNet S.A. de C.V. 
11830      868        364          15   Instituto Costarricense de El
27947      855         93          89   Telconet S.A
 6503      791        434          60   AVANTEL, S.A. 
 6147      788        373          27   Telefonica Del Peru 
 7738      780       1498          36   Telecomunicacoes da Bahia 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
36998     1819        112           5   Sudanese Mobile Telephone (ZA
24863      889        338          26   LINKdotNET AS number
 6713      598        653          27   Itissalat Al-MAGHRIB
 8452      420        956           9   TEDATA
24835      298        144           9   RAYA Telecom - Egypt
 3741      247        921         209   The Internet Solution 
36992      247        526          30   Etisalat MISR
29571      239         21          14   Ci Telecom Autonomous system 
15706      219         32           6   Sudatel Internet Exchange Aut
29975      192        668          21   Vodacom

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
28573     3430       1839          90   NET Servicos de Comunicao S.A
 6389     3028       3688          53   BellSouth.net Inc.
 4766     2948      11558         952   Korea Telecom (KIX)
17974     2731        902          88   PT TELEKOMUNIKASI INDONESIA
10620     2691        435         209   Telmex Colombia S.A.
22773     2303       2939         139   Cox Communications, Inc.
 1785     2146        686         131   PaeTec Communications, Inc.
 7545     2121        319         112   TPG Internet Pty Ltd
18566     2050        379         178   MegaPath Corporation
 8402     1884        544          16   OJSC "Vimpelcom"

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      3028        2975      BellSouth.net Inc.
17974      2731        2643      PT TELEKOMUNIKASI INDONESIA
10620      2691        2482      Telmex Colombia S.A.
22773      2303        2164      Cox Communications, Inc.
 1785      2146        2015      PaeTec Communications, Inc.
 7545      2121        2009      TPG Internet Pty Ltd
 4766      2948        1996      Korea Telecom (KIX)
18566      2050        1872      MegaPath Corporation
 8402      1884        1868      OJSC "Vimpelcom"
36998      1819        1814      Sudanese Mobile Telephone (ZA

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

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

Bad AS  Designation  Network              Transit AS  Description
62828   UNALLOCATED  8.21.130.0/24         4323       Time Warner Telecom
62850   UNALLOCATED  8.25.147.0/24        46887       Lightower Fiber Netw
62734   UNALLOCATED  8.31.128.0/24         6939       Hurricane Electric 
62773   UNALLOCATED  8.35.180.0/22         3356       Level 3 Communicatio
15132   UNALLOCATED  12.9.150.0/24         7018       AT&T WorldNet Servic
62719   UNALLOCATED  12.27.130.0/24        4323       Time Warner Telecom
62861   UNALLOCATED  12.37.197.0/24        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         209       Qwest Communications

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

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

Network            Origin AS  Description
23.90.128.0/18       27418     OUTOFWALL INC.
23.91.0.0/19         40676     Psychz Networks
23.91.4.0/24         40676     Psychz Networks
23.91.14.0/24        40676     Psychz Networks
23.91.32.0/19        36315     Servpac Inc. 
23.91.80.0/20        21560     Capital Technology Services G
23.91.96.0/20        37958     ChinaCache Networks ASN
23.91.112.0/21       32475     MidPhase Inc. 
23.91.120.0/21       36351     SoftLayer Technologies Inc. 
23.91.160.0/19       36493     3757277 Canada Inc. (oa 295.c

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       /9:11      /10:31      /11:92      /12:253     
/13:473     /14:937     /15:1636    /16:12859   /17:6759    /18:11374   
/19:23196   /20:32966   /21:35768   /22:50414   /23:44040   /24:252543  
/25:837     /26:986     /27:448     /28:48      /29:72      /30:26      
/31:0       /32:15      

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

  ASN   No of nets  Total ann.   Description
18566     2005          2050      MegaPath Corporation
36998     1786          1819      Sudanese Mobile Telephone (ZA
 6389     1699          3028      BellSouth.net Inc.
 8402     1584          1884      OJSC "Vimpelcom"
22773     1553          2303      Cox Communications, Inc.
30036     1216          1375      Mediacom Communications Corp 
 1785     1163          2146      PaeTec Communications, Inc.
11492     1148          1185      Cable One 
 6983     1037          1295      ITC^Deltacom 
22561      977          1252      Digital Teleport, Inc 

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

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

   1:925       2:855       3:3         4:16        5:829       6:21     
   8:618      12:1883     13:3        14:901      15:9        16:3      
  17:19       20:34       23:616      24:1754     27:1702     31:1516   
  32:46       33:2        34:5        36:104      37:1955     38:919    
  39:3        40:182      41:3216     42:238      44:14       46:2106   
  47:10       49:703      50:859      52:12       54:44       55:5      
  56:4        57:26       58:1144     59:583      60:370      61:1498   
  62:1229     63:1978     64:4397     65:2334     66:4133     67:2115   
  68:1088     69:3295     70:909      71:511      72:2025     74:2587   
  75:323      76:305      77:1215     78:1029     79:676      80:1285   
  81:1084     82:643      83:754      84:630      85:1275     86:398    
  87:1015     88:524      89:1568     90:150      91:5734     92:626    
  93:1617     94:2104     95:1509     96:520      97:351      98:1082   
  99:41      100:32      101:693     103:3870    105:533     106:144    
 107:255     108:548     109:2019    110:966     111:1135    112:607    
 113:811     114:753     115:1044    116:1014    117:830     118:1237   
 119:1279    120:340     121:771     122:1885    123:1267    124:1388   
 125:1447    128:638     129:232     130:357     131:665     132:355    
 133:159     134:310     135:73      136:277     137:252     138:353    
 139:171     140:202     141:349     142:550     143:406     144:498    
 145:90      146:550     147:436     148:790     149:360     150:153    
 151:479     152:408     153:208     154:49      155:518     156:313    
 157:419     158:285     159:788     160:359     161:454     162:961    
 163:252     164:636     165:586     166:280     167:641     168:1044   
 169:123     170:1151    171:185     172:12      173:1714    174:675    
 175:547     176:1338    177:2573    178:1905    179:327     180:1604   
 181:915     182:1423    183:477     184:623     185:1145    186:2779   
 187:1449    188:1956    189:1269    190:7315    192:7078    193:5440   
 194:4033    195:3389    196:1347    197:1076    198:4806    199:5527   
 200:6058    201:2545    202:9016    203:8904    204:4535    205:2637   
 206:2906    207:2820    208:3955    209:3694    210:3080    211:1632   
 212:2184    213:1973    214:873     215:85      216:5430    217:1723   
 218:622     219:323     220:1273    221:591     222:332     223:563    


End of report



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