[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Sep 27 18:36:05 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 28 Sep, 2013

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

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

BGP routing table entries examined:                              468437
    Prefixes after maximum aggregation:                          188881
    Deaggregation factor:                                          2.48
    Unique aggregates announced to Internet:                     232188
Total ASes present in the Internet Routing Table:                 45071
    Prefixes per ASN:                                             10.39
Origin-only ASes present in the Internet Routing Table:           35211
Origin ASes announcing only one prefix:                           16272
Transit ASes present in the Internet Routing Table:                5902
Transit-only ASes present in the Internet Routing Table:            162
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      30
    Max AS path prepend of ASN ( 36992)                              22
Prefixes from unregistered ASNs in the Routing Table:               285
    Unregistered ASNs in the Routing Table:                         158
Number of 32-bit ASNs allocated by the RIRs:                       5110
Number of 32-bit ASNs visible in the Routing Table:                3958
Prefixes from 32-bit ASNs in the Routing Table:                   12108
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            596
Number of addresses announced to Internet:                   2645071764
    Equivalent to 157 /8s, 168 /16s and 151 /24s
    Percentage of available address space announced:               71.4
    Percentage of allocated address space announced:               71.4
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               95.0
Total number of prefixes smaller than registry allocations:      163911

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

Prefixes being announced by APNIC Region ASes:                   111250
    Total APNIC prefixes after maximum aggregation:               33714
    APNIC Deaggregation factor:                                    3.30
Prefixes being announced from the APNIC address blocks:          113282
    Unique aggregates announced from the APNIC address blocks:    46723
APNIC Region origin ASes present in the Internet Routing Table:    4869
    APNIC Prefixes per ASN:                                       23.27
APNIC Region origin ASes announcing only one prefix:               1215
APNIC Region transit ASes present in the Internet Routing Table:    829
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         20
Number of APNIC region 32-bit ASNs visible in the Routing Table:    692
Number of APNIC addresses announced to Internet:              727695360
    Equivalent to 43 /8s, 95 /16s and 192 /24s
    Percentage of available APNIC address space announced:         85.0

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:                    162744
    Total ARIN prefixes after maximum aggregation:                81490
    ARIN Deaggregation factor:                                     2.00
Prefixes being announced from the ARIN address blocks:           163254
    Unique aggregates announced from the ARIN address blocks:     75879
ARIN Region origin ASes present in the Internet Routing Table:    15900
    ARIN Prefixes per ASN:                                        10.27
ARIN Region origin ASes announcing only one prefix:                6024
ARIN Region transit ASes present in the Internet Routing Table:    1653
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:      21
Number of ARIN addresses announced to Internet:              1072661120
    Equivalent to 63 /8s, 239 /16s and 130 /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, 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:                    118632
    Total RIPE prefixes after maximum aggregation:                61255
    RIPE Deaggregation factor:                                     1.94
Prefixes being announced from the RIPE address blocks:           122199
    Unique aggregates announced from the RIPE address blocks:     78897
RIPE Region origin ASes present in the Internet Routing Table:    17449
    RIPE Prefixes per ASN:                                         7.00
RIPE Region origin ASes announcing only one prefix:                8272
RIPE Region transit ASes present in the Internet Routing Table:    2805
Average RIPE Region AS path length visible:                         5.2
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2403
Number of RIPE addresses announced to Internet:               657039844
    Equivalent to 39 /8s, 41 /16s and 161 /24s
    Percentage of available RIPE address space announced:          95.5

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:                   51895
    Total LACNIC prefixes after maximum aggregation:               9803
    LACNIC Deaggregation factor:                                   5.29
Prefixes being announced from the LACNIC address blocks:          56808
    Unique aggregates announced from the LACNIC address blocks:   26194
LACNIC Region origin ASes present in the Internet Routing Table:   2025
    LACNIC Prefixes per ASN:                                      28.05
LACNIC Region origin ASes announcing only one prefix:               569
LACNIC Region transit ASes present in the Internet Routing Table:   382
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        29
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   836
Number of LACNIC addresses announced to Internet:             139338288
    Equivalent to 8 /8s, 78 /16s and 34 /24s
    Percentage of available LACNIC address space announced:        83.1

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:                  11674
    Total AfriNIC prefixes after maximum aggregation:              2544
    AfriNIC Deaggregation factor:                                  4.59
Prefixes being announced from the AfriNIC address blocks:         12298
    Unique aggregates announced from the AfriNIC address blocks:   3982
AfriNIC Region origin ASes present in the Internet Routing Table:   653
    AfriNIC Prefixes per ASN:                                     18.83
AfriNIC Region origin ASes announcing only one prefix:              192
AfriNIC Region transit ASes present in the Internet Routing Table:  138
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    6
Number of AfriNIC addresses announced to Internet:             46748928
    Equivalent to 2 /8s, 201 /16s and 85 /24s
    Percentage of available AfriNIC address space announced:       46.4

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     2936      11562         937   Korea Telecom (KIX)
17974     2691        903          91   PT TELEKOMUNIKASI INDONESIA
 7545     2079        321         112   TPG Internet Pty Ltd
 4755     1770        391         187   TATA Communications formerly 
 9829     1545       1238          40   BSNL National Internet Backbo
 9583     1233         93         506   Sify Limited
 9498     1194        309          72   BHARTI Airtel Ltd.
 4808     1192       2131         347   CNCGROUP IP network: China169
 7552     1163       1080          13   Vietel Corporation
24560     1090        380         164   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     3061       3689          59   BellSouth.net Inc.
18566     2067        382         184   Covad Communications 
22773     2038       2933         124   Cox Communications, Inc.
 1785     2018        679         125   PaeTec Communications, Inc.
20115     1680       1651         628   Charter Communications 
 4323     1616       1103         417   Time Warner Telecom
  701     1523      11149         795   UUNET Technologies, Inc. 
30036     1345        304         623   Mediacom Communications Corp 
 7018     1305      11244         821   AT&T WorldNet Services
 6983     1285        756         578   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     1781        544          17   OJSC "Vimpelcom"
34984     1363        244         221   TELLCOM ILETISIM HIZMETLERI A
20940     1033        377         794   Akamai Technologies European 
31148      989         43          19   FreeNet ISP
 6830      891       2365         425   UPC Distribution Services
13188      849         99          67   TOV "Bank-Inform"
 8551      746        370          41   Bezeq International
12479      676        799          49   Uni2 Autonomous System
35228      528        246          16   Avatar Broadband Limited
 3320      511       8416         406   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
28573     3367       1730          94   NET Servicos de Comunicao S.A
10620     2584        421         246   TVCABLE BOGOTA 
 7303     1715       1133         229   Telecom Argentina Stet-France
18881     1441        844          20   Global Village Telecom 
 8151     1337       2801         412   UniNet S.A. de C.V. 
11830      865        364          15   Instituto Costarricense de El
27947      841         93          94   Telconet S.A
 6503      834        434          64   AVANTEL, S.A. 
 7738      780       1498          36   Telecomunicacoes da Bahia S.A
 6147      770        376          21   Telefonica Del Peru 

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     1864        112           5   Sudanese Mobile Telephone (ZA
24863      880        306          30   LINKdotNET AS number
 6713      554        633          26   Itissalat Al-MAGHRIB
 8452      435        956           9   TEDATA
24835      291         80           8   RAYA Telecom - Egypt
 3741      258        921         216   The Internet Solution 
29571      223         17          12   Ci Telecom Autonomous system 
36992      222        501          28   Etisalat MISR
15706      221         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     3367       1730          94   NET Servicos de Comunicao S.A
 6389     3061       3689          59   BellSouth.net Inc.
 4766     2936      11562         937   Korea Telecom (KIX)
17974     2691        903          91   PT TELEKOMUNIKASI INDONESIA
10620     2584        421         246   TVCABLE BOGOTA 
 7545     2079        321         112   TPG Internet Pty Ltd
18566     2067        382         184   Covad Communications 
22773     2038       2933         124   Cox Communications, Inc.
 1785     2018        679         125   PaeTec Communications, Inc.
36998     1864        112           5   Sudanese Mobile Telephone (ZA

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      3061        3002      BellSouth.net Inc.
17974      2691        2600      PT TELEKOMUNIKASI INDONESIA
10620      2584        2338      TVCABLE BOGOTA 
 4766      2936        1999      Korea Telecom (KIX)
 7545      2079        1967      TPG Internet Pty Ltd
22773      2038        1914      Cox Communications, Inc.
 1785      2018        1893      PaeTec Communications, Inc.
18566      2067        1883      Covad Communications 
36998      1864        1859      Sudanese Mobile Telephone (ZA
 8402      1781        1764      OJSC "Vimpelcom"

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

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

Bad AS  Designation  Network              Transit AS  Description
15132   UNALLOCATED  12.9.150.0/24         7018       AT&T WorldNet Servic
30031   UNALLOCATED  12.27.122.0/24        7018       AT&T WorldNet Servic
62719   UNALLOCATED  12.27.130.0/24        4323       Time Warner Telecom
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 
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
33649   UNALLOCATED  12.111.112.0/24      19029       New Edge Networks 

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

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

Prefix             Origin AS  Description
100.100.0.0/24        4847     China Networks Inter-Exchange

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

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

Network            Origin AS  Description
23.90.128.0/18       27418     OUTOFWALL INC.
23.90.192.0/18       36086     Broad Communications Technolo
23.91.0.0/19         40676     Psychz Networks 
23.91.32.0/19        36315     Servpac Inc. 
23.91.96.0/20        40676     Psychz Networks 
23.91.112.0/21       32475     MidPhase Inc. 
23.91.160.0/22       36493     3757277 Canada Inc. (oa 295.c
23.91.160.0/19       36493     3757277 Canada Inc. (oa 295.c
23.91.164.0/22       36493     3757277 Canada Inc. (oa 295.c
23.91.168.0/22       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      /12:250     
/13:479     /14:916     /15:1628    /16:12805   /17:6693    /18:11207   
/19:22943   /20:32591   /21:35192   /22:49711   /23:43071   /24:248290  
/25:884     /26:990     /27:477     /28:48      /29:78      /30:20      
/31:0       /32:14      

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

  ASN   No of nets  Total ann.   Description
18566     2018          2067      Covad Communications 
36998     1829          1864      Sudanese Mobile Telephone (ZA
 6389     1711          3061      BellSouth.net Inc.
 8402     1501          1781      OJSC "Vimpelcom"
22773     1324          2038      Cox Communications, Inc.
30036     1203          1345      Mediacom Communications Corp 
11492     1190          1231      Cable One 
 1785     1084          2018      PaeTec Communications, Inc.
 6983     1026          1285      ITC^Deltacom 
22561      963          1240      Digital Teleport, Inc 

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

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

   1:847       2:857       3:3         4:17        5:967       6:19     
   8:609      12:1891     13:3        14:870      15:11       16:3      
  17:13       18:19       20:21       23:445      24:1729     27:1589   
  31:1469     32:45       33:2        34:5        36:80       37:1827   
  38:909      39:3        40:179      41:3282     42:250      44:13     
  46:2014     47:5        49:677      50:842      52:12       54:39     
  55:6        57:26       58:1166     59:611      60:344      61:1421   
  62:1182     63:1990     64:4553     65:2344     66:4181     67:2080   
  68:1086     69:3325     70:868      71:495      72:2002     74:2561   
  75:330      76:302      77:1169     78:1052     79:640      80:1330   
  81:1033     82:623      83:584      84:588      85:1283     86:454    
  87:996      88:552      89:1731     90:158      91:5647     92:603    
  93:1617     94:1974     95:1596     96:517      97:343      98:1042   
  99:43      100:31      101:610     103:3368    105:520     106:143    
 107:208     108:510     109:1878    110:969     111:1122    112:579    
 113:800     114:734     115:1010    116:991     117:817     118:1165   
 119:1292    120:371     121:742     122:1884    123:1244    124:1388   
 125:1424    128:620     129:321     130:323     131:653     132:348    
 133:161     134:542     135:67      136:272     137:267     138:350    
 139:181     140:183     141:325     142:549     143:397     144:498    
 145:100     146:514     147:401     148:705     149:353     150:158    
 151:583     152:411     153:197     154:48      155:485     156:279    
 157:421     158:285     159:768     160:348     161:451     162:716    
 163:229     164:634     165:575     166:258     167:620     168:1050   
 169:128     170:1077    171:201     172:25      173:1612    174:664    
 175:502     176:1215    177:2307    178:1885    179:145     180:1542   
 181:748     182:1325    183:464     184:654     185:895     186:2592   
 187:1447    188:1900    189:1327    190:7154    192:6962    193:5633   
 194:4079    195:3338    196:1322    197:999     198:4688    199:5470   
 200:6072    201:2545    202:9022    203:8922    204:4510    205:2630   
 206:2866    207:2896    208:4010    209:3619    210:2938    211:1565   
 212:2262    213:2025    214:927     215:99      216:5338    217:1663   
 218:623     219:324     220:1279    221:565     222:326     223:504    


End of report


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