[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Oct 4 18:36:07 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 05 Oct, 2013

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

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

BGP routing table entries examined:                              468683
    Prefixes after maximum aggregation:                          189054
    Deaggregation factor:                                          2.48
    Unique aggregates announced to Internet:                     232434
Total ASes present in the Internet Routing Table:                 45122
    Prefixes per ASN:                                             10.39
Origin-only ASes present in the Internet Routing Table:           35242
Origin ASes announcing only one prefix:                           16252
Transit ASes present in the Internet Routing Table:                5902
Transit-only ASes present in the Internet Routing Table:            166
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:               338
    Unregistered ASNs in the Routing Table:                         189
Number of 32-bit ASNs allocated by the RIRs:                       5144
Number of 32-bit ASNs visible in the Routing Table:                3978
Prefixes from 32-bit ASNs in the Routing Table:                   12238
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            665
Number of addresses announced to Internet:                   2647718900
    Equivalent to 157 /8s, 208 /16s and 251 /24s
    Percentage of available address space announced:               71.5
    Percentage of allocated address space announced:               71.5
    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:      164010

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

Prefixes being announced by APNIC Region ASes:                   111126
    Total APNIC prefixes after maximum aggregation:               33829
    APNIC Deaggregation factor:                                    3.28
Prefixes being announced from the APNIC address blocks:          113153
    Unique aggregates announced from the APNIC address blocks:    46794
APNIC Region origin ASes present in the Internet Routing Table:    4872
    APNIC Prefixes per ASN:                                       23.23
APNIC Region origin ASes announcing only one prefix:               1218
APNIC Region transit ASes present in the Internet Routing Table:    821
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         21
Number of APNIC region 32-bit ASNs visible in the Routing Table:    692
Number of APNIC addresses announced to Internet:              728412160
    Equivalent to 43 /8s, 106 /16s and 176 /24s
    Percentage of available APNIC address space announced:         85.1

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:                    162812
    Total ARIN prefixes after maximum aggregation:                81536
    ARIN Deaggregation factor:                                     2.00
Prefixes being announced from the ARIN address blocks:           163305
    Unique aggregates announced from the ARIN address blocks:     75874
ARIN Region origin ASes present in the Internet Routing Table:    15904
    ARIN Prefixes per ASN:                                        10.27
ARIN Region origin ASes announcing only one prefix:                6017
ARIN Region transit ASes present in the Internet Routing Table:    1660
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:      22
Number of ARIN addresses announced to Internet:              1072976640
    Equivalent to 63 /8s, 244 /16s and 83 /24s
    Percentage of available ARIN address space announced:          56.8

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:                    118832
    Total RIPE prefixes after maximum aggregation:                61246
    RIPE Deaggregation factor:                                     1.94
Prefixes being announced from the RIPE address blocks:           122391
    Unique aggregates announced from the RIPE address blocks:     78886
RIPE Region origin ASes present in the Internet Routing Table:    17455
    RIPE Prefixes per ASN:                                         7.01
RIPE Region origin ASes announcing only one prefix:                8261
RIPE Region transit ASes present in the Internet Routing Table:    2814
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2406
Number of RIPE addresses announced to Internet:               656682980
    Equivalent to 39 /8s, 36 /16s and 47 /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:                   51953
    Total LACNIC prefixes after maximum aggregation:               9822
    LACNIC Deaggregation factor:                                   5.29
Prefixes being announced from the LACNIC address blocks:          56961
    Unique aggregates announced from the LACNIC address blocks:   26309
LACNIC Region origin ASes present in the Internet Routing Table:   2030
    LACNIC Prefixes per ASN:                                      28.06
LACNIC Region origin ASes announcing only one prefix:               563
LACNIC Region transit ASes present in the Internet Routing Table:   385
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:   852
Number of LACNIC addresses announced to Internet:             140082192
    Equivalent to 8 /8s, 89 /16s and 124 /24s
    Percentage of available LACNIC address space announced:        83.5

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:                  11572
    Total AfriNIC prefixes after maximum aggregation:              2533
    AfriNIC Deaggregation factor:                                  4.57
Prefixes being announced from the AfriNIC address blocks:         12208
    Unique aggregates announced from the AfriNIC address blocks:   3999
AfriNIC Region origin ASes present in the Internet Routing Table:   653
    AfriNIC Prefixes per ASN:                                     18.70
AfriNIC Region origin ASes announcing only one prefix:              193
AfriNIC Region transit ASes present in the Internet Routing Table:  137
Average AfriNIC Region AS path length visible:                      4.8
    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:             47751424
    Equivalent to 2 /8s, 216 /16s and 161 /24s
    Percentage of available AfriNIC address space announced:       47.4

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     2947      11563         946   Korea Telecom (KIX)
17974     2698        903          90   PT TELEKOMUNIKASI INDONESIA
 7545     2084        321         112   TPG Internet Pty Ltd
 4755     1769        391         187   TATA Communications formerly 
 9829     1548       1236          41   BSNL National Internet Backbo
 9583     1237         93         507   Sify Limited
 9498     1196        309          72   BHARTI Airtel Ltd.
 4808     1191       2131         347   CNCGROUP IP network: China169
 7552     1164       1080          13   Vietel Corporation
24560     1091        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     2066        382         184   Covad Communications 
22773     2055       2943         140   Cox Communications, Inc.
 1785     2019        679         125   PaeTec Communications, Inc.
20115     1682       1651         619   Charter Communications 
 4323     1625       1104         419   Time Warner Telecom
  701     1516      11148         789   UUNET Technologies, Inc. 
30036     1337        301         638   Mediacom Communications Corp 
 7018     1331      17499         857   AT&T WorldNet Services
 6983     1294        772         579   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     1851        544          17   OJSC "Vimpelcom"
34984     1364        244         221   TELLCOM ILETISIM HIZMETLERI A
20940     1040        383         801   Akamai Technologies European 
31148      992         44          19   FreeNet ISP
 6830      891       2365         425   UPC Distribution Services
13188      849         99          67   TOV "Bank-Inform"
 8551      750        370          41   Bezeq International
12479      680        799          49   Uni2 Autonomous System
35228      528        246          16   Avatar Broadband Limited
 3320      514       8418         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     3362       1734          88   NET Servicos de Comunicao S.A
10620     2599        423         245   TVCABLE BOGOTA 
 7303     1724       1135         233   Telecom Argentina Stet-France
18881     1462        844          20   Global Village Telecom 
 8151     1340       2805         413   UniNet S.A. de C.V. 
11830      865        364          15   Instituto Costarricense de El
 6503      851        434          63   AVANTEL, S.A. 
27947      837         93          91   Telconet S.A
 6147      799        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     1864        112           5   Sudanese Mobile Telephone (ZA
24863      882        306          30   LINKdotNET AS number
 6713      554        633          26   Itissalat Al-MAGHRIB
 8452      421        956           9   TEDATA
24835      292         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     3362       1734          88   NET Servicos de Comunicao S.A
 6389     3061       3689          59   BellSouth.net Inc.
 4766     2947      11563         946   Korea Telecom (KIX)
17974     2698        903          90   PT TELEKOMUNIKASI INDONESIA
10620     2599        423         245   TVCABLE BOGOTA 
 7545     2084        321         112   TPG Internet Pty Ltd
18566     2066        382         184   Covad Communications 
22773     2055       2943         140   Cox Communications, Inc.
 1785     2019        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      2698        2608      PT TELEKOMUNIKASI INDONESIA
10620      2599        2354      TVCABLE BOGOTA 
 4766      2947        2001      Korea Telecom (KIX)
 7545      2084        1972      TPG Internet Pty Ltd
22773      2055        1915      Cox Communications, Inc.
 1785      2019        1894      PaeTec Communications, Inc.
18566      2066        1882      Covad Communications 
36998      1864        1859      Sudanese Mobile Telephone (ZA
 8402      1851        1834      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      /12:251     
/13:481     /14:913     /15:1625    /16:12818   /17:6700    /18:11231   
/19:22971   /20:32614   /21:35281   /22:49729   /23:43015   /24:248381  
/25:895     /26:994     /27:475     /28:49      /29:78      /30:18      
/31:0       /32:14      

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

  ASN   No of nets  Total ann.   Description
18566     2017          2066      Covad Communications 
36998     1829          1864      Sudanese Mobile Telephone (ZA
 6389     1710          3061      BellSouth.net Inc.
 8402     1572          1851      OJSC "Vimpelcom"
22773     1327          2055      Cox Communications, Inc.
11492     1194          1235      Cable One 
30036     1194          1337      Mediacom Communications Corp 
 1785     1085          2019      PaeTec Communications, Inc.
 6983     1034          1294      ITC^Deltacom 
22561      962          1237      Digital Teleport, Inc 

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

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

   1:833       2:860       3:3         4:17        5:993       6:19     
   8:612      12:1896     13:3        14:872      15:11       16:3      
  17:14       18:19       20:21       23:451      24:1719     27:1597   
  31:1476     32:45       33:2        34:5        36:81       37:1822   
  38:907      39:2        40:179      41:3253     42:249      44:14     
  46:2022     47:6        49:678      50:840      52:12       54:39     
  55:3        57:26       58:1164     59:611      60:351      61:1425   
  62:1185     63:1978     64:4544     65:2346     66:4179     67:2073   
  68:1089     69:3325     70:859      71:496      72:1994     74:2561   
  75:326      76:306      77:1166     78:1058     79:648      80:1328   
  81:1021     82:625      83:587      84:594      85:1256     86:456    
  87:1015     88:555      89:1723     90:157      91:5640     92:612    
  93:1624     94:1981     95:1628     96:511      97:343      98:1035   
  99:43      100:31      101:611     103:3351    105:520     106:143    
 107:212     108:509     109:1875    110:963     111:1127    112:582    
 113:787     114:730     115:1013    116:984     117:829     118:1167   
 119:1299    120:370     121:735     122:1884    123:1222    124:1359   
 125:1424    128:619     129:325     130:323     131:646     132:349    
 133:162     134:548     135:67      136:275     137:269     138:350    
 139:180     140:181     141:324     142:548     143:417     144:499    
 145:103     146:517     147:403     148:702     149:351     150:157    
 151:598     152:412     153:200     154:47      155:488     156:281    
 157:422     158:285     159:758     160:348     161:448     162:735    
 163:227     164:633     165:572     166:258     167:621     168:1044   
 169:126     170:1081    171:200     172:25      173:1618    174:664    
 175:506     176:1247    177:2332    178:1917    179:160     180:1555   
 181:744     182:1331    183:480     184:657     185:908     186:2606   
 187:1462    188:1872    189:1336    190:7178    192:7001    193:5616   
 194:4062    195:3335    196:1314    197:992     198:4682    199:5475   
 200:6061    201:2530    202:8974    203:8924    204:4504    205:2617   
 206:2848    207:2892    208:4006    209:3619    210:2948    211:1575   
 212:2262    213:2012    214:901     215:99      216:5405    217:1669   
 218:622     219:315     220:1279    221:566     222:326     223:504    


End of report


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