Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri May 2 18:12:23 UTC 2014


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 03 May, 2014

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

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

BGP routing table entries examined:                              493507
    Prefixes after maximum aggregation:                          193714
    Deaggregation factor:                                          2.55
    Unique aggregates announced to Internet:                     244007
Total ASes present in the Internet Routing Table:                 46734
    Prefixes per ASN:                                             10.56
Origin-only ASes present in the Internet Routing Table:           35795
Origin ASes announcing only one prefix:                           16388
Transit ASes present in the Internet Routing Table:                6056
Transit-only ASes present in the Internet Routing Table:            170
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:              1837
    Unregistered ASNs in the Routing Table:                         459
Number of 32-bit ASNs allocated by the RIRs:                       6508
Number of 32-bit ASNs visible in the Routing Table:                4883
Prefixes from 32-bit ASNs in the Routing Table:                   16259
Number of bogon 32-bit ASNs visible in the Routing Table:           133
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            441
Number of addresses announced to Internet:                   2678216965
    Equivalent to 159 /8s, 162 /16s and 89 /24s
    Percentage of available address space announced:               72.3
    Percentage of allocated address space announced:               72.3
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               96.3
Total number of prefixes smaller than registry allocations:      171214

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

Prefixes being announced by APNIC Region ASes:                   117313
    Total APNIC prefixes after maximum aggregation:               34942
    APNIC Deaggregation factor:                                    3.36
Prefixes being announced from the APNIC address blocks:          120226
    Unique aggregates announced from the APNIC address blocks:    50108
APNIC Region origin ASes present in the Internet Routing Table:    4923
    APNIC Prefixes per ASN:                                       24.42
APNIC Region origin ASes announcing only one prefix:               1231
APNIC Region transit ASes present in the Internet Routing Table:    860
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         30
Number of APNIC region 32-bit ASNs visible in the Routing Table:    931
Number of APNIC addresses announced to Internet:              732419201
    Equivalent to 43 /8s, 167 /16s and 212 /24s
    Percentage of available APNIC address space announced:         85.6

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:                    168115
    Total ARIN prefixes after maximum aggregation:                83465
    ARIN Deaggregation factor:                                     2.01
Prefixes being announced from the ARIN address blocks:           169561
    Unique aggregates announced from the ARIN address blocks:     79577
ARIN Region origin ASes present in the Internet Routing Table:    16243
    ARIN Prefixes per ASN:                                        10.44
ARIN Region origin ASes announcing only one prefix:                6118
ARIN Region transit ASes present in the Internet Routing Table:    1663
Average ARIN Region AS path length visible:                         4.0
    Max ARIN Region AS path length visible:                          20
Number of ARIN region 32-bit ASNs visible in the Routing Table:      96
Number of ARIN addresses announced to Internet:              1074634880
    Equivalent to 64 /8s, 13 /16s and 160 /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:                    123413
    Total RIPE prefixes after maximum aggregation:                62512
    RIPE Deaggregation factor:                                     1.97
Prefixes being announced from the RIPE address blocks:           127972
    Unique aggregates announced from the RIPE address blocks:     80777
RIPE Region origin ASes present in the Internet Routing Table:    17675
    RIPE Prefixes per ASN:                                         7.24
RIPE Region origin ASes announcing only one prefix:                8280
RIPE Region transit ASes present in the Internet Routing Table:    2868
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:    2698
Number of RIPE addresses announced to Internet:               657606020
    Equivalent to 39 /8s, 50 /16s and 69 /24s
    Percentage of available RIPE address space announced:          95.6

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
                       40960-45055, 47104-52223, 56320-58367
                       59392-61439, 61952-62463, 196608-202239
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:                   56426
    Total LACNIC prefixes after maximum aggregation:              10071
    LACNIC Deaggregation factor:                                   5.60
Prefixes being announced from the LACNIC address blocks:          62759
    Unique aggregates announced from the LACNIC address blocks:   28862
LACNIC Region origin ASes present in the Internet Routing Table:   2095
    LACNIC Prefixes per ASN:                                      29.96
LACNIC Region origin ASes announcing only one prefix:               550
LACNIC Region transit ASes present in the Internet Routing Table:   430
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        34
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1133
Number of LACNIC addresses announced to Internet:             159008128
    Equivalent to 9 /8s, 122 /16s and 69 /24s
    Percentage of available LACNIC address space announced:        94.8

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:                  11875
    Total AfriNIC prefixes after maximum aggregation:              2687
    AfriNIC Deaggregation factor:                                  4.42
Prefixes being announced from the AfriNIC address blocks:         12548
    Unique aggregates announced from the AfriNIC address blocks:   4311
AfriNIC Region origin ASes present in the Internet Routing Table:   720
    AfriNIC Prefixes per ASN:                                     17.43
AfriNIC Region origin ASes announcing only one prefix:              209
AfriNIC Region transit ASes present in the Internet Routing Table:  151
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   25
Number of AfriNIC addresses announced to Internet:             54232064
    Equivalent to 3 /8s, 59 /16s and 132 /24s
    Percentage of available AfriNIC address space announced:       53.9

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      11591         922   Korea Telecom
17974     2798        903          78   PT Telekomunikasi Indonesia
 7545     2219        320         117   TPG Telecom Limited
 4755     1852        396         198   TATA Communications formerly 
 9829     1622       1288          35   National Internet Backbone
 9583     1327        103         546   Sify Limited
 9498     1257        314          84   BHARTI Airtel Ltd.
 7552     1219       1082          13   Viettel Corporation
 4808     1210       2151         355   CNCGROUP IP network China169 
24560     1126        385         175   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     2971       3688          53   BellSouth.net Inc.
22773     2417       2937         134   Cox Communications Inc.
 1785     2201        700         135   PaeTec Communications, Inc.
18566     2047        379         178   MegaPath Corporation
20115     1706       1690         561   Charter Communications
 4323     1628       1073         408   tw telecom holdings, inc.
  701     1481      11158         750   MCI Communications Services, 
30036     1400        302         546   Mediacom Communications Corp
 6983     1327        800         307   ITC^Deltacom
22561     1302        402         232   CenturyTel Internet Holdings,

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
34984     1709        264         271   TELLCOM ILETISIM HIZMETLERI A
 8402     1520        544          16   OJSC "Vimpelcom"
20940     1302        497         978   Akamai International B.V.
13188     1049        100          28   TOV "Bank-Inform"
31148     1018         45          19   Freenet Ltd.
 8551      918        370          40   Bezeq International-Ltd
 6849      825        357          28   JSC "Ukrtelecom"
 6830      766       2333         427   Liberty Global Operations B.V
12479      720        797          56   France Telecom Espana SA
 9198      574        344          25   JSC Kazakhtelecom

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     3739       1957          99   NET Serviços de Comunicação S
10620     2850        461         202   Telmex Colombia S.A.
18881     1967        972          21   Global Village Telecom
 7303     1753       1174         228   Telecom Argentina S.A.
 8151     1400       2930         405   Uninet S.A. de C.V.
 6503     1111        434          60   Axtel, S.A.B. de C.V.
 7738      914       1754          40   Telemar Norte Leste S.A.
27947      867        114          52   Telconet S.A
11830      842        364          15   Instituto Costarricense de El
26615      842       2325          35   Tim Celular 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     1114        240           6   Sudanese Mobile Telephone (ZA
24863      961        280          26   Link Egypt (Link.NET)
 6713      614        722          28   Office National des Postes et
 8452      578        958          13   TE-AS
24835      304        144           9   Vodafone Data
36992      275        783          24   ETISALAT MISR
 3741      248        921         209   Internet Solutions
29571      228         22          23   Cote d'Ivoire Telecom
37054      216         19           6   Data Telecom Service
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     3739       1957          99   NET Serviços de Comunicação S
 6389     2971       3688          53   BellSouth.net Inc.
 4766     2947      11591         922   Korea Telecom
10620     2850        461         202   Telmex Colombia S.A.
17974     2798        903          78   PT Telekomunikasi Indonesia
22773     2417       2937         134   Cox Communications Inc.
 7545     2219        320         117   TPG Telecom Limited
 1785     2201        700         135   PaeTec Communications, Inc.
18566     2047        379         178   MegaPath Corporation
18881     1967        972          21   Global Village Telecom

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      2971        2918      BellSouth.net Inc.
17974      2798        2720      PT Telekomunikasi Indonesia
10620      2850        2648      Telmex Colombia S.A.
22773      2417        2283      Cox Communications Inc.
 7545      2219        2102      TPG Telecom Limited
 1785      2201        2066      PaeTec Communications, Inc.
 4766      2947        2025      Korea Telecom
18881      1967        1946      Global Village Telecom
18566      2047        1869      MegaPath Corporation
 4755      1852        1654      TATA Communications formerly 

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

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

Bad AS  Designation  Network              Transit AS  Description
65456   PRIVATE      5.109.32.0/19        23456       32bit Transition AS
65456   PRIVATE      5.109.96.0/19        23456       32bit Transition AS
30662   UNALLOCATED  8.2.129.0/24          3356       Level 3 Communicatio
53506   UNALLOCATED  8.17.102.0/23         2828       XO Communications
20260   UNALLOCATED  8.25.160.0/24         3356       Level 3 Communicatio
20260   UNALLOCATED  8.25.161.0/24         3356       Level 3 Communicatio
46473   UNALLOCATED  8.27.122.0/24        12180       Internap Network Ser
46473   UNALLOCATED  8.27.124.0/24        12180       Internap Network Ser
22511   UNALLOCATED  8.28.225.0/24         2828       XO Communications
22511   UNALLOCATED  8.36.68.0/24          2828       XO Communications

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

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

Network            Origin AS  Description
27.100.7.0/24        56096     >>UNKNOWN<<
41.73.1.0/24         37004     >>UNKNOWN<<
41.73.2.0/24         37004     >>UNKNOWN<<
41.73.10.0/24        37004     >>UNKNOWN<<
41.73.11.0/24        37004     >>UNKNOWN<<
41.73.12.0/24        37004     >>UNKNOWN<<
41.73.13.0/24        37004     >>UNKNOWN<<
41.73.14.0/24        37004     >>UNKNOWN<<
41.73.15.0/24        37004     >>UNKNOWN<<
41.73.16.0/24        37004     >>UNKNOWN<<

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       /9:12      /10:31      /11:90      /12:257     
/13:481     /14:964     /15:1697    /16:12960   /17:6813    /18:11593   
/19:24278   /20:34188   /21:36791   /22:52944   /23:46162   /24:262047  
/25:785     /26:932     /27:395     /28:13      /29:15      /30:5       
/31:0       /32:38      

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

  ASN   No of nets  Total ann.   Description
18566     2002          2047      MegaPath Corporation
 6389     1692          2971      BellSouth.net Inc.
22773     1660          2417      Cox Communications Inc.
30036     1238          1400      Mediacom Communications Corp
 8402     1197          1520      OJSC "Vimpelcom"
11492     1197          1240      CABLE ONE, INC.
 1785     1165          2201      PaeTec Communications, Inc.
36998     1080          1114      Sudanese Mobile Telephone (ZA
 6983     1043          1327      ITC^Deltacom
34984     1038          1709      TELLCOM ILETISIM HIZMETLERI A

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

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

   1:1028      2:680       3:3         4:15        5:983       6:19     
   8:736      12:1848     13:4        14:987      15:13       16:2      
  17:31       18:21       20:36       23:854      24:1735     25:1      
  27:1779     31:1477     32:40       33:2        34:5        36:131    
  37:1879     38:955      39:6        40:196      41:3181     42:247    
  44:10       46:2174     47:18       49:696      50:917      52:12     
  54:47       55:7        57:28       58:1229     59:601      60:403    
  61:1547     62:1234     63:1959     64:4378     65:2288     66:4147   
  67:2063     68:1035     69:3307     70:856      71:445      72:2011   
  74:2657     75:311      76:418      77:1529     78:935      79:711    
  80:1298     81:1165     82:743      83:756      84:728      85:1259   
  86:470      87:1172     88:482      89:1801     90:140      91:5703   
  92:694      93:1712     94:2042     95:1467     96:544      97:349    
  98:1075     99:48      100:54      101:789     103:4752    105:536    
 106:173     107:606     108:579     109:2049    110:968     111:1293   
 112:657     113:847     114:902     115:1119    116:1061    117:925    
 118:1393    119:1345    120:377     121:806     122:2041    123:1326   
 124:1414    125:1401    128:649     129:313     130:345     131:660    
 132:399     133:162     134:323     135:74      136:256     137:324    
 138:352     139:170     140:213     141:367     142:579     143:439    
 144:507     145:100     146:603     147:452     148:924     149:346    
 150:167     151:634     152:423     153:218     154:273     155:482    
 156:336     157:337     158:241     159:896     160:332     161:532    
 162:1367    163:218     164:688     165:598     166:278     167:610    
 168:1030    169:124     170:1393    171:191     172:22      173:1634   
 174:701     175:608     176:1415    177:2869    178:1961    179:612    
 180:1715    181:1132    182:1556    183:511     184:713     185:1569   
 186:2748    187:1533    188:1921    189:1470    190:7530    191:245    
 192:7250    193:5497    194:4039    195:3484    196:1398    197:640    
 198:5034    199:5581    200:6248    201:2703    202:9020    203:8885   
 204:4630    205:2709    206:2950    207:2945    208:3986    209:3718   
 210:3102    211:1678    212:2254    213:2068    214:921     215:86     
 216:5518    217:1685    218:575     219:318     220:1280    221:595    
 222:353     223:579    

End of report


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