Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Sep 26 18:12:39 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 27 Sep, 2014

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

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

BGP routing table entries examined:                              512186
    Prefixes after maximum aggregation:                          198722
    Deaggregation factor:                                          2.58
    Unique aggregates announced to Internet:                     252159
Total ASes present in the Internet Routing Table:                 48124
    Prefixes per ASN:                                             10.64
Origin-only ASes present in the Internet Routing Table:           36176
Origin ASes announcing only one prefix:                           16357
Transit ASes present in the Internet Routing Table:                6173
Transit-only ASes present in the Internet Routing Table:            176
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      68
    Max AS path prepend of ASN ( 55644)                              61
Prefixes from unregistered ASNs in the Routing Table:              1761
    Unregistered ASNs in the Routing Table:                         448
Number of 32-bit ASNs allocated by the RIRs:                       7505
Number of 32-bit ASNs visible in the Routing Table:                5775
Prefixes from 32-bit ASNs in the Routing Table:                   20231
Number of bogon 32-bit ASNs visible in the Routing Table:            13
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            358
Number of addresses announced to Internet:                   2709988068
    Equivalent to 161 /8s, 135 /16s and 34 /24s
    Percentage of available address space announced:               73.2
    Percentage of allocated address space announced:               73.2
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               96.9
Total number of prefixes smaller than registry allocations:      175400

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

Prefixes being announced by APNIC Region ASes:                   125220
    Total APNIC prefixes after maximum aggregation:               36661
    APNIC Deaggregation factor:                                    3.42
Prefixes being announced from the APNIC address blocks:          128967
    Unique aggregates announced from the APNIC address blocks:    53231
APNIC Region origin ASes present in the Internet Routing Table:    4982
    APNIC Prefixes per ASN:                                       25.89
APNIC Region origin ASes announcing only one prefix:               1201
APNIC Region transit ASes present in the Internet Routing Table:    866
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         68
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1110
Number of APNIC addresses announced to Internet:              734586688
    Equivalent to 43 /8s, 200 /16s and 231 /24s
    Percentage of available APNIC address space announced:         85.9

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-64098, 131072-135580
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:                    170487
    Total ARIN prefixes after maximum aggregation:                85188
    ARIN Deaggregation factor:                                     2.00
Prefixes being announced from the ARIN address blocks:           172481
    Unique aggregates announced from the ARIN address blocks:     80696
ARIN Region origin ASes present in the Internet Routing Table:    16365
    ARIN Prefixes per ASN:                                        10.54
ARIN Region origin ASes announcing only one prefix:                6093
ARIN Region transit ASes present in the Internet Routing Table:    1699
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          22
Number of ARIN region 32-bit ASNs visible in the Routing Table:     208
Number of ARIN addresses announced to Internet:              1084878240
    Equivalent to 64 /8s, 169 /16s and 237 /24s
    Percentage of available ARIN address space announced:          57.4

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:                    125076
    Total RIPE prefixes after maximum aggregation:                63321
    RIPE Deaggregation factor:                                     1.98
Prefixes being announced from the RIPE address blocks:           130217
    Unique aggregates announced from the RIPE address blocks:     82829
RIPE Region origin ASes present in the Internet Routing Table:    17733
    RIPE Prefixes per ASN:                                         7.34
RIPE Region origin ASes announcing only one prefix:                8213
RIPE Region transit ASes present in the Internet Routing Table:    2905
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    3071
Number of RIPE addresses announced to Internet:               659421828
    Equivalent to 39 /8s, 77 /16s and 250 /24s
    Percentage of available RIPE address space announced:          95.9

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:                   59763
    Total LACNIC prefixes after maximum aggregation:              10685
    LACNIC Deaggregation factor:                                   5.59
Prefixes being announced from the LACNIC address blocks:          68010
    Unique aggregates announced from the LACNIC address blocks:   30357
LACNIC Region origin ASes present in the Internet Routing Table:   2321
    LACNIC Prefixes per ASN:                                      29.30
LACNIC Region origin ASes announcing only one prefix:               633
LACNIC Region transit ASes present in the Internet Routing Table:   457
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        26
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1330
Number of LACNIC addresses announced to Internet:             171055744
    Equivalent to 10 /8s, 50 /16s and 26 /24s
    Percentage of available LACNIC address space announced:       102.0

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-265628 + 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:                  11305
    Total AfriNIC prefixes after maximum aggregation:              2821
    AfriNIC Deaggregation factor:                                  4.01
Prefixes being announced from the AfriNIC address blocks:         12153
    Unique aggregates announced from the AfriNIC address blocks:   4730
AfriNIC Region origin ASes present in the Internet Routing Table:   741
    AfriNIC Prefixes per ASN:                                     16.40
AfriNIC Region origin ASes announcing only one prefix:              217
AfriNIC Region transit ASes present in the Internet Routing Table:  159
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:   56
Number of AfriNIC addresses announced to Internet:             59753216
    Equivalent to 3 /8s, 143 /16s and 195 /24s
    Percentage of available AfriNIC address space announced:       59.4

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     2928      11583         924   Korea Telecom
17974     2812        900          74   PT Telekomunikasi Indonesia
 7545     2354        336         121   TPG Telecom Limited
 4755     1910        413         192   TATA Communications formerly 
 9829     1633       1306          38   National Internet Backbone
 4808     1430       2215         421   CNCGROUP IP network China169 
 9583     1320        105         541   Sify Limited
 9498     1304        333          91   BHARTI Airtel Ltd.
 9808     1283       6634          13   Guangdong Mobile Communicatio
 7552     1229       1098          14   Viettel Corporation

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     2897       3688          51   BellSouth.net Inc.
22773     2895       2940         141   Cox Communications Inc.
18566     2045        379         181   MegaPath Corporation
 7029     1934       1975         333   Windstream Communications Inc
20115     1797       1781         489   Charter Communications
 4323     1629       1051         409   tw telecom holdings, inc.
 6983     1498        867         251   ITC^Deltacom
30036     1494        311         608   Mediacom Communications Corp
  701     1437      11258         720   MCI Communications Services, 
22561     1308        408         237   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     1816        296         345   TELLCOM ILETISIM HIZMETLERI A
20940     1477        573        1086   Akamai International B.V.
 8402     1416        544          15   OJSC "Vimpelcom"
31148     1043         45          21   Freenet Ltd.
13188     1034        100          31   TOV "Bank-Inform"
 8551      962        372          42   Bezeq International-Ltd
 6849      829        356          26   JSC "Ukrtelecom"
12479      804        798          58   France Telecom Espana SA
 6830      776       2335         431   Liberty Global Operations B.V
 9198      629        346          28   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     3041       2310         110   NET Serviços de Comunicação S
10620     2981        483         250   Telmex Colombia S.A.
18881     2108       1036          22   Global Village Telecom
 7303     1765       1175         234   Telecom Argentina S.A.
 6147     1734        374          30   Telefonica del Peru S.A.A.
 8151     1472       2998         433   Uninet S.A. de C.V.
 6503     1118        434          61   Axtel, S.A.B. de C.V.
 7738      999       1882          41   Telemar Norte Leste S.A.
27947      909        130          51   Telconet S.A
26615      872       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
24863      949        280          26   Link Egypt (Link.NET)
 6713      678        760          38   Office National des Postes et
 8452      555        958          13   TE-AS
36992      347        824          27   ETISALAT MISR
24835      307        144           9   Vodafone Data
 3741      249        920         212   Internet Solutions
29571      245         22          17   Cote d'Ivoire Telecom
37054      233         19           6   Data Telecom Service
15706      186         17           6   Sudatel (Sudan Telecom Co. Lt
12258      174         26          71   MWEB CONNECT (PROPRIETARY) LI

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     3041       2310         110   NET Serviços de Comunicação S
10620     2981        483         250   Telmex Colombia S.A.
 4766     2928      11583         924   Korea Telecom
 6389     2897       3688          51   BellSouth.net Inc.
22773     2895       2940         141   Cox Communications Inc.
17974     2812        900          74   PT Telekomunikasi Indonesia
 7545     2354        336         121   TPG Telecom Limited
18881     2108       1036          22   Global Village Telecom
18566     2045        379         181   MegaPath Corporation
 7029     1934       1975         333   Windstream Communications Inc

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      2897        2846      BellSouth.net Inc.
22773      2895        2754      Cox Communications Inc.
17974      2812        2738      PT Telekomunikasi Indonesia
10620      2981        2731      Telmex Colombia S.A.
 7545      2354        2233      TPG Telecom Limited
18881      2108        2086      Global Village Telecom
 4766      2928        2004      Korea Telecom
18566      2045        1864      MegaPath Corporation
 4755      1910        1718      TATA Communications formerly 
 6147      1734        1704      Telefonica del Peru S.A.A.

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

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

Bad AS  Designation  Network              Transit AS  Description
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
55020   UNALLOCATED  8.30.123.0/24         3356       Level 3 Communicatio
27205   UNALLOCATED  8.38.16.0/21          6461       Abovenet Communicati
15347   UNALLOCATED  8.224.147.0/24       12064       Cox Communications I
33628   UNALLOCATED  12.0.239.0/24         1239       Sprint

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

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

Network            Origin AS  Description
5.100.241.0/24       23456     32bit Transition AS
24.231.96.0/24       21548     MTO Telecom Inc.
27.100.7.0/24        56096     >>UNKNOWN<<
31.217.248.0/21      44902     COVAGE NETWORKS SASU
37.16.88.0/23        57652     >>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<<

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      /12:262     
/13:504     /14:998     /15:1711    /16:13033   /17:7098    /18:11836   
/19:24585   /20:35270   /21:37688   /22:54834   /23:48041   /24:273273  
/25:1075    /26:1054    /27:718     /28:14      /29:19      /30:10      
/31:1       /32:13      

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

  ASN   No of nets  Total ann.   Description
22773     2128          2895      Cox Communications Inc.
18566     2000          2045      MegaPath Corporation
 6389     1676          2897      BellSouth.net Inc.
30036     1339          1494      Mediacom Communications Corp
 6147     1301          1734      Telefonica del Peru S.A.A.
 6983     1186          1498      ITC^Deltacom
 7029     1138          1934      Windstream Communications Inc
34984     1136          1816      TELLCOM ILETISIM HIZMETLERI A
11492     1128          1176      CABLE ONE, INC.
 8402     1096          1416      OJSC "Vimpelcom"

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

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

   1:1344      2:664       3:3         4:18        5:1144      6:21     
   8:758      12:1848     13:4        14:1125     15:17       16:2      
  17:42       18:21       20:51       23:925      24:1755     27:1805   
  31:1412     32:39       33:2        34:5        36:155      37:1783   
  38:999      39:11       40:225      41:2614     42:268      43:390    
  44:16       45:76       46:2177     47:25       49:738      50:801    
  52:12       54:52       55:6        56:6        57:32       58:1209   
  59:661      60:432      61:1718     62:1271     63:1829     64:4411   
  65:2294     66:4183     67:2041     68:1047     69:3280     70:865    
  71:473      72:1995     74:2594     75:372      76:409      77:1604   
  78:853      79:729      80:1323     81:1208     82:792      83:777    
  84:742      85:1322     86:447      87:1159     88:469      89:1755   
  90:138      91:5755     92:755      93:1796     94:2068     95:1282   
  96:427      97:342      98:1100     99:48      100:66      101:723    
 103:5685    104:287     105:137     106:184     107:637     108:576    
 109:1980    110:1036    111:1383    112:716     113:896     114:780    
 115:1212    116:1118    117:990     118:1574    119:1413    120:429    
 121:973     122:2196    123:1618    124:1437    125:1577    128:596    
 129:348     130:365     131:824     132:430     133:165     134:324    
 135:78      136:305     137:290     138:378     139:195     140:222    
 141:405     142:580     143:435     144:506     145:110     146:688    
 147:554     148:958     149:407     150:496     151:709     152:470    
 153:240     154:353     155:544     156:371     157:331     158:279    
 159:933     160:325     161:600     162:1781    163:357     164:703    
 165:663     166:364     167:675     168:1119    169:121     170:1416   
 171:185     172:61      173:1640    174:703     175:615     176:1507   
 177:3554    178:2082    179:795     180:1761    181:1599    182:1659   
 183:533     184:725     185:2100    186:2945    187:1689    188:2220   
 189:1491    190:7812    191:757     192:7563    193:5514    194:4048   
 195:3592    196:1433    197:653     198:5147    199:5488    200:6502   
 201:2889    202:9161    203:8985    204:4582    205:2655    206:2963   
 207:2944    208:3915    209:3740    210:3296    211:1822    212:2360   
 213:2153    214:867     215:87      216:5620    217:1698    218:617    
 219:395     220:1369    221:699     222:484     223:597    

End of report


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