Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Sep 12 18:11:14 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 13 Sep, 2014

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

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

BGP routing table entries examined:                              510411
    Prefixes after maximum aggregation:                          198347
    Deaggregation factor:                                          2.57
    Unique aggregates announced to Internet:                     250698
Total ASes present in the Internet Routing Table:                 47994
    Prefixes per ASN:                                             10.63
Origin-only ASes present in the Internet Routing Table:           36148
Origin ASes announcing only one prefix:                           16392
Transit ASes present in the Internet Routing Table:                6157
Transit-only ASes present in the Internet Routing Table:            173
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      40
    Max AS path prepend of ASN ( 55644)                              33
Prefixes from unregistered ASNs in the Routing Table:              1661
    Unregistered ASNs in the Routing Table:                         446
Number of 32-bit ASNs allocated by the RIRs:                       7379
Number of 32-bit ASNs visible in the Routing Table:                5689
Prefixes from 32-bit ASNs in the Routing Table:                   19972
Number of bogon 32-bit ASNs visible in the Routing Table:            16
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            350
Number of addresses announced to Internet:                   2710407908
    Equivalent to 161 /8s, 141 /16s and 138 /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:      175155

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

Prefixes being announced by APNIC Region ASes:                   124899
    Total APNIC prefixes after maximum aggregation:               36562
    APNIC Deaggregation factor:                                    3.42
Prefixes being announced from the APNIC address blocks:          128593
    Unique aggregates announced from the APNIC address blocks:    52768
APNIC Region origin ASes present in the Internet Routing Table:    4980
    APNIC Prefixes per ASN:                                       25.82
APNIC Region origin ASes announcing only one prefix:               1215
APNIC Region transit ASes present in the Internet Routing Table:    870
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         40
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1086
Number of APNIC addresses announced to Internet:              735938624
    Equivalent to 43 /8s, 221 /16s and 136 /24s
    Percentage of available APNIC address space announced:         86.0

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-64098, 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:                    169997
    Total ARIN prefixes after maximum aggregation:                85153
    ARIN Deaggregation factor:                                     2.00
Prefixes being announced from the ARIN address blocks:           171979
    Unique aggregates announced from the ARIN address blocks:     80373
ARIN Region origin ASes present in the Internet Routing Table:    16371
    ARIN Prefixes per ASN:                                        10.51
ARIN Region origin ASes announcing only one prefix:                6124
ARIN Region transit ASes present in the Internet Routing Table:    1687
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:     190
Number of ARIN addresses announced to Internet:              1084723616
    Equivalent to 64 /8s, 167 /16s and 145 /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:                    125058
    Total RIPE prefixes after maximum aggregation:                63149
    RIPE Deaggregation factor:                                     1.98
Prefixes being announced from the RIPE address blocks:           130033
    Unique aggregates announced from the RIPE address blocks:     82363
RIPE Region origin ASes present in the Internet Routing Table:    17714
    RIPE Prefixes per ASN:                                         7.34
RIPE Region origin ASes announcing only one prefix:                8207
RIPE Region transit ASes present in the Internet Routing Table:    2899
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:    3045
Number of RIPE addresses announced to Internet:               659229828
    Equivalent to 39 /8s, 75 /16s and 12 /24s
    Percentage of available RIPE address space announced:          95.8

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:                   59409
    Total LACNIC prefixes after maximum aggregation:              10635
    LACNIC Deaggregation factor:                                   5.59
Prefixes being announced from the LACNIC address blocks:          67668
    Unique aggregates announced from the LACNIC address blocks:   30185
LACNIC Region origin ASes present in the Internet Routing Table:   2297
    LACNIC Prefixes per ASN:                                      29.46
LACNIC Region origin ASes announcing only one prefix:               630
LACNIC Region transit ASes present in the Internet Routing Table:   456
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        27
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1316
Number of LACNIC addresses announced to Internet:             170834048
    Equivalent to 10 /8s, 46 /16s and 184 /24s
    Percentage of available LACNIC address space announced:       101.8

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:                  10981
    Total AfriNIC prefixes after maximum aggregation:              2802
    AfriNIC Deaggregation factor:                                  3.92
Prefixes being announced from the AfriNIC address blocks:         11788
    Unique aggregates announced from the AfriNIC address blocks:   4709
AfriNIC Region origin ASes present in the Internet Routing Table:   739
    AfriNIC Prefixes per ASN:                                     15.95
AfriNIC Region origin ASes announcing only one prefix:              216
AfriNIC Region transit ASes present in the Internet Routing Table:  154
Average AfriNIC Region AS path length visible:                      4.8
    Max AfriNIC Region AS path length visible:                       28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   52
Number of AfriNIC addresses announced to Internet:             59392000
    Equivalent to 3 /8s, 138 /16s and 64 /24s
    Percentage of available AfriNIC address space announced:       59.0

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     2933      11591         922   Korea Telecom
17974     2811        900          74   PT Telekomunikasi Indonesia
 7545     2345        336         121   TPG Telecom Limited
 4755     1902        413         192   TATA Communications formerly 
 9829     1635       1306          38   National Internet Backbone
 4808     1396       2227         409   CNCGROUP IP network China169 
 9583     1321        105         542   Sify Limited
 9498     1302        333          91   BHARTI Airtel Ltd.
 7552     1241       1098          14   Viettel Corporation
 9808     1239       6639          15   Guangdong Mobile Communicatio

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     2884       2940         142   Cox Communications Inc.
18566     2045        379         178   MegaPath Corporation
 7029     1903       1959         320   Windstream Communications Inc
20115     1780       1766         502   Charter Communications
 4323     1622       1055         406   tw telecom holdings, inc.
30036     1522        318         572   Mediacom Communications Corp
 6983     1476        817         311   ITC^Deltacom
  701     1438      11242         720   MCI Communications Services, 
22561     1309        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     1753        299         284   TELLCOM ILETISIM HIZMETLERI A
20940     1470        571        1083   Akamai International B.V.
 8402     1386        544          15   OJSC "Vimpelcom"
31148     1042         45          20   Freenet Ltd.
13188     1013         97          51   TOV "Bank-Inform"
 8551      946        371          41   Bezeq International-Ltd
 6849      805        356          26   JSC "Ukrtelecom"
12479      793        798          58   France Telecom Espana SA
 6830      776       2335         431   Liberty Global Operations B.V
 9198      660        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     3053       2311         107   NET Serviços de Comunicação S
10620     2951        478         274   Telmex Colombia S.A.
18881     2100       1036          22   Global Village Telecom
 7303     1756       1166         233   Telecom Argentina S.A.
 6147     1708        374          30   Telefonica del Peru S.A.A.
 8151     1468       2999         434   Uninet S.A. de C.V.
 6503     1109        434          62   Axtel, S.A.B. de C.V.
 7738      999       1882          41   Telemar Norte Leste S.A.
27947      908        130          51   Telconet S.A
26615      899       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      916        280          26   Link Egypt (Link.NET)
 6713      670        744          37   Office National des Postes et
 8452      546        958          13   TE-AS
36992      336        816          30   ETISALAT MISR
24835      307        144           9   Vodafone Data
 3741      249        920         212   Internet Solutions
37054      244         19           6   Data Telecom Service
29571      237         22          17   Cote d'Ivoire Telecom
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     3053       2311         107   NET Serviços de Comunicação S
10620     2951        478         274   Telmex Colombia S.A.
 4766     2933      11591         922   Korea Telecom
 6389     2897       3688          51   BellSouth.net Inc.
22773     2884       2940         142   Cox Communications Inc.
17974     2811        900          74   PT Telekomunikasi Indonesia
 7545     2345        336         121   TPG Telecom Limited
18881     2100       1036          22   Global Village Telecom
18566     2045        379         178   MegaPath Corporation
 7029     1903       1959         320   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      2884        2742      Cox Communications Inc.
17974      2811        2737      PT Telekomunikasi Indonesia
10620      2951        2677      Telmex Colombia S.A.
 7545      2345        2224      TPG Telecom Limited
18881      2100        2078      Global Village Telecom
 4766      2933        2011      Korea Telecom
18566      2045        1867      MegaPath Corporation
 4755      1902        1710      TATA Communications formerly 
 6147      1708        1678      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<<
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<<
41.73.13.0/24        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     /14:991     /15:1712    /16:13047   /17:7062    /18:11768   
/19:24633   /20:35229   /21:37733   /22:54535   /23:47854   /24:272035  
/25:1077    /26:1042    /27:723     /28:14      /29:18      /30:10      
/31:1       /32:12      

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

  ASN   No of nets  Total ann.   Description
22773     2121          2884      Cox Communications Inc.
18566     2000          2045      MegaPath Corporation
 6389     1676          2897      BellSouth.net Inc.
30036     1371          1522      Mediacom Communications Corp
 6147     1276          1708      Telefonica del Peru S.A.A.
 6983     1175          1476      ITC^Deltacom
 7029     1134          1903      Windstream Communications Inc
11492     1116          1165      CABLE ONE, INC.
34984     1074          1753      TELLCOM ILETISIM HIZMETLERI A
 8402     1058          1386      OJSC "Vimpelcom"

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

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

   1:1329      2:664       3:3         4:18        5:1127      6:21     
   8:749      12:1854     13:4        14:1111     15:17       16:2      
  17:40       18:21       20:51       23:919      24:1768     27:1763   
  31:1410     32:39       33:2        34:5        36:143      37:1773   
  38:965      39:17       40:223      41:2522     42:267      43:328    
  44:16       45:71       46:2142     47:25       49:731      50:822    
  52:12       54:51       55:6        56:6        57:32       58:1204   
  59:661      60:426      61:1702     62:1270     63:1831     64:4366   
  65:2292     66:4190     67:2014     68:1033     69:3277     70:864    
  71:474      72:1998     74:2566     75:369      76:422      77:1599   
  78:826      79:725      80:1303     81:1200     82:773      83:773    
  84:729      85:1328     86:441      87:1159     88:465      89:1782   
  90:138      91:5698     92:767      93:1787     94:1990     95:1604   
  96:428      97:342      98:1153     99:48      100:66      101:713    
 103:5590    104:228     105:38      106:182     107:635     108:568    
 109:1980    110:1029    111:1359    112:720     113:862     114:778    
 115:1209    116:1123    117:992     118:1559    119:1409    120:433    
 121:963     122:2195    123:1614    124:1431    125:1579    128:608    
 129:348     130:364     131:764     132:428     133:165     134:320    
 135:76      136:304     137:290     138:384     139:204     140:213    
 141:413     142:580     143:434     144:511     145:114     146:682    
 147:554     148:970     149:433     150:482     151:602     152:468    
 153:243     154:338     155:535     156:357     157:328     158:275    
 159:931     160:324     161:592     162:1720    163:348     164:702    
 165:659     166:363     167:681     168:1120    169:123     170:1394   
 171:184     172:62      173:1619    174:708     175:605     176:1499   
 177:3581    178:2077    179:764     180:1777    181:1579    182:1654   
 183:553     184:716     185:2049    186:2955    187:1700    188:2208   
 189:1474    190:7824    191:747     192:7532    193:5501    194:4048   
 195:3565    196:1414    197:660     198:5139    199:5462    200:6471   
 201:2855    202:9151    203:9011    204:4552    205:2651    206:2950   
 207:2925    208:3918    209:3761    210:3304    211:1834    212:2335   
 213:2145    214:860     215:86      216:5624    217:1705    218:614    
 219:408     220:1366    221:686     222:484     223:598    

End of report


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