[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Oct 11 18:38:02 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 12 Oct, 2013

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

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

BGP routing table entries examined:                              469227
    Prefixes after maximum aggregation:                          189103
    Deaggregation factor:                                          2.48
    Unique aggregates announced to Internet:                     232899
Total ASes present in the Internet Routing Table:                 45163
    Prefixes per ASN:                                             10.39
Origin-only ASes present in the Internet Routing Table:           35242
Origin ASes announcing only one prefix:                           16260
Transit ASes present in the Internet Routing Table:                5915
Transit-only ASes present in the Internet Routing Table:            160
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      35
    Max AS path prepend of ASN ( 59482)                              25
Prefixes from unregistered ASNs in the Routing Table:               303
    Unregistered ASNs in the Routing Table:                         171
Number of 32-bit ASNs allocated by the RIRs:                       5177
Number of 32-bit ASNs visible in the Routing Table:                4006
Prefixes from 32-bit ASNs in the Routing Table:                   12413
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            714
Number of addresses announced to Internet:                   2648115732
    Equivalent to 157 /8s, 215 /16s and 10 /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:               95.1
Total number of prefixes smaller than registry allocations:      164200

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

Prefixes being announced by APNIC Region ASes:                   111390
    Total APNIC prefixes after maximum aggregation:               33839
    APNIC Deaggregation factor:                                    3.29
Prefixes being announced from the APNIC address blocks:          113461
    Unique aggregates announced from the APNIC address blocks:    46844
APNIC Region origin ASes present in the Internet Routing Table:    4875
    APNIC Prefixes per ASN:                                       23.27
APNIC Region origin ASes announcing only one prefix:               1222
APNIC Region transit ASes present in the Internet Routing Table:    830
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         28
Number of APNIC region 32-bit ASNs visible in the Routing Table:    710
Number of APNIC addresses announced to Internet:              728465152
    Equivalent to 43 /8s, 107 /16s and 127 /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:                    163008
    Total ARIN prefixes after maximum aggregation:                81421
    ARIN Deaggregation factor:                                     2.00
Prefixes being announced from the ARIN address blocks:           163510
    Unique aggregates announced from the ARIN address blocks:     76000
ARIN Region origin ASes present in the Internet Routing Table:    15898
    ARIN Prefixes per ASN:                                        10.28
ARIN Region origin ASes announcing only one prefix:                6018
ARIN Region transit ASes present in the Internet Routing Table:    1657
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:      25
Number of ARIN addresses announced to Internet:              1072988416
    Equivalent to 63 /8s, 244 /16s and 129 /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:                    118750
    Total RIPE prefixes after maximum aggregation:                61299
    RIPE Deaggregation factor:                                     1.94
Prefixes being announced from the RIPE address blocks:           122330
    Unique aggregates announced from the RIPE address blocks:     78977
RIPE Region origin ASes present in the Internet Routing Table:    17464
    RIPE Prefixes per ASN:                                         7.00
RIPE Region origin ASes announcing only one prefix:                8262
RIPE Region transit ASes present in the Internet Routing Table:    2819
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:    2410
Number of RIPE addresses announced to Internet:               656522980
    Equivalent to 39 /8s, 33 /16s and 190 /24s
    Percentage of available RIPE address space announced:          95.4

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:                   51889
    Total LACNIC prefixes after maximum aggregation:               9928
    LACNIC Deaggregation factor:                                   5.23
Prefixes being announced from the LACNIC address blocks:          56947
    Unique aggregates announced from the LACNIC address blocks:   26506
LACNIC Region origin ASes present in the Internet Routing Table:   2037
    LACNIC Prefixes per ASN:                                      27.96
LACNIC Region origin ASes announcing only one prefix:               569
LACNIC Region transit ASes present in the Internet Routing Table:   384
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        35
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   855
Number of LACNIC addresses announced to Internet:             140359472
    Equivalent to 8 /8s, 93 /16s and 183 /24s
    Percentage of available LACNIC address space announced:        83.7

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:                  11617
    Total AfriNIC prefixes after maximum aggregation:              2519
    AfriNIC Deaggregation factor:                                  4.61
Prefixes being announced from the AfriNIC address blocks:         12265
    Unique aggregates announced from the AfriNIC address blocks:   3972
AfriNIC Region origin ASes present in the Internet Routing Table:   650
    AfriNIC Prefixes per ASN:                                     18.87
AfriNIC Region origin ASes announcing only one prefix:              189
AfriNIC Region transit ASes present in the Internet Routing Table:  133
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:             47752704
    Equivalent to 2 /8s, 216 /16s and 166 /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     2944      11563         946   Korea Telecom (KIX)
17974     2714        903          90   PT TELEKOMUNIKASI INDONESIA
 7545     2089        321         112   TPG Internet Pty Ltd
 4755     1779        391         187   TATA Communications formerly 
 9829     1556       1241          43   BSNL National Internet Backbo
 9583     1238         93         508   Sify Limited
 9498     1202        309          74   BHARTI Airtel Ltd.
 4808     1191       2131         347   CNCGROUP IP network: China169
 7552     1160       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     3060       3689          59   BellSouth.net Inc.
22773     2168       2943         140   Cox Communications, Inc.
18566     2066        382         184   Covad Communications 
 1785     2020        679         126   PaeTec Communications, Inc.
20115     1678       1651         615   Charter Communications 
 4323     1623       1104         422   Time Warner Telecom
  701     1517      11148         790   UUNET Technologies, Inc. 
30036     1383        310         574   Mediacom Communications Corp 
 7018     1332      17514         858   AT&T WorldNet Services
 6983     1294        771         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     1841        544          17   OJSC "Vimpelcom"
34984     1363        244         220   TELLCOM ILETISIM HIZMETLERI A
20940     1056        389         812   Akamai Technologies European 
31148      991         44          19   FreeNet ISP
 6830      895       2366         428   UPC Distribution Services
13188      874         99          62   TOV "Bank-Inform"
 8551      754        370          41   Bezeq International
12479      688        799          49   Uni2 Autonomous System
35228      541        246          16   Avatar Broadband Limited
34744      516        157          53   SC GVM SISTEM 2003 SRL

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     3405       1752          90   NET Servicos de Comunicao S.A
10620     2602        423         249   TVCABLE BOGOTA 
 7303     1724       1135         233   Telecom Argentina Stet-France
18881     1462        844          20   Global Village Telecom 
 8151     1342       2815         415   UniNet S.A. de C.V. 
11830      865        364          15   Instituto Costarricense de El
27947      837         93          90   Telconet S.A
 6147      801        373          27   Telefonica Del Peru 
 6503      796        434          62   AVANTEL, S.A. 
 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      881        274          29   LINKdotNET AS number
 6713      554        633          26   Itissalat Al-MAGHRIB
 8452      426        956           9   TEDATA
24835      292         80           8   RAYA Telecom - Egypt
 3741      258        921         216   The Internet Solution 
29571      223         17          11   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     3405       1752          90   NET Servicos de Comunicao S.A
 6389     3060       3689          59   BellSouth.net Inc.
 4766     2944      11563         946   Korea Telecom (KIX)
17974     2714        903          90   PT TELEKOMUNIKASI INDONESIA
10620     2602        423         249   TVCABLE BOGOTA 
22773     2168       2943         140   Cox Communications, Inc.
 7545     2089        321         112   TPG Internet Pty Ltd
18566     2066        382         184   Covad Communications 
 1785     2020        679         126   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      3060        3001      BellSouth.net Inc.
17974      2714        2624      PT TELEKOMUNIKASI INDONESIA
10620      2602        2353      TVCABLE BOGOTA 
22773      2168        2028      Cox Communications, Inc.
 4766      2944        1998      Korea Telecom (KIX)
 7545      2089        1977      TPG Internet Pty Ltd
 1785      2020        1894      PaeTec Communications, Inc.
18566      2066        1882      Covad Communications 
36998      1864        1859      Sudanese Mobile Telephone (ZA
 8402      1841        1824      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
62734   UNALLOCATED  8.31.128.0/24         6939       Hurricane Electric 
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

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. 
23.91.80.0/20        21560     Capital Technology Services G
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

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     /14:916     /15:1627    /16:12822   /17:6702    /18:11233   
/19:22994   /20:32626   /21:35338   /22:49901   /23:43037   /24:248599  
/25:899     /26:995     /27:497     /28:48      /29:78      /30:19      
/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     1709          3060      BellSouth.net Inc.
 8402     1534          1841      OJSC "Vimpelcom"
22773     1439          2168      Cox Communications, Inc.
30036     1239          1383      Mediacom Communications Corp 
11492     1192          1233      Cable One 
 1785     1084          2020      PaeTec Communications, Inc.
 6983     1034          1294      ITC^Deltacom 
22561      966          1241      Digital Teleport, Inc 

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

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

   1:841       2:814       3:3         4:17        5:992       6:19     
   8:614      12:1893     13:3        14:876      15:11       16:3      
  17:16       18:19       20:21       23:465      24:1720     27:1602   
  31:1466     32:45       33:2        34:5        36:81       37:1816   
  38:911      39:3        40:181      41:3224     42:249      44:14     
  46:2024     47:6        49:686      50:835      52:12       54:39     
  55:3        56:2        57:26       58:1166     59:606      60:358    
  61:1430     62:1187     63:1980     64:4554     65:2349     66:4174   
  67:2117     68:1099     69:3294     70:872      71:497      72:2025   
  74:2568     75:326      76:307      77:1166     78:1090     79:650    
  80:1329     81:1020     82:625      83:588      84:597      85:1195   
  86:453      87:1023     88:555      89:1736     90:155      91:5634   
  92:607      93:1608     94:2035     95:1627     96:518      97:342    
  98:1047     99:43      100:31      101:613     103:3400    105:522    
 106:143     107:211     108:511     109:1900    110:971     111:1132   
 112:581     113:793     114:741     115:1014    116:993     117:827    
 118:1172    119:1293    120:382     121:747     122:1880    123:1224   
 124:1380    125:1426    128:646     129:236     130:324     131:670    
 132:348     133:158     134:547     135:67      136:276     137:240    
 138:348     139:180     140:196     141:313     142:545     143:409    
 144:499     145:96      146:516     147:402     148:708     149:352    
 150:156     151:614     152:407     153:201     154:47      155:486    
 156:284     157:423     158:284     159:773     160:350     161:455    
 162:769     163:227     164:634     165:570     166:258     167:622    
 168:1047    169:127     170:1088    171:202     172:25      173:1624   
 174:672     175:509     176:1235    177:2351    178:1921    179:191    
 180:1567    181:754     182:1352    183:482     184:653     185:933    
 186:2586    187:1471    188:1888    189:1311    190:7177    192:7060   
 193:5421    194:4031    195:3320    196:1323    197:1002    198:4728   
 199:5470    200:6091    201:2522    202:8971    203:8899    204:4518   
 205:2624    206:2847    207:2918    208:4005    209:3636    210:2948   
 211:1572    212:2202    213:2018    214:906     215:99      216:5366   
 217:1687    218:621     219:315     220:1280    221:566     222:326    
 223:507    

End of report


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