Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Mar 6 18:12:01 UTC 2015


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,
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 07 Mar, 2015

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

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

BGP routing table entries examined:                              535301
    Prefixes after maximum aggregation (per Origin AS):          204571
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      260830
Total ASes present in the Internet Routing Table:                 49580
    Prefixes per ASN:                                             10.80
Origin-only ASes present in the Internet Routing Table:           36492
Origin ASes announcing only one prefix:                           16264
Transit ASes present in the Internet Routing Table:                6275
Transit-only ASes present in the Internet Routing Table:            169
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      44
    Max AS path prepend of ASN ( 55944)                              41
Prefixes from unregistered ASNs in the Routing Table:              1423
    Unregistered ASNs in the Routing Table:                         428
Number of 32-bit ASNs allocated by the RIRs:                       8771
Number of 32-bit ASNs visible in the Routing Table:                6813
Prefixes from 32-bit ASNs in the Routing Table:                   24890
Number of bogon 32-bit ASNs visible in the Routing Table:             2
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            382
Number of addresses announced to Internet:                   2733757604
    Equivalent to 162 /8s, 241 /16s and 212 /24s
    Percentage of available address space announced:               73.8
    Percentage of allocated address space announced:               73.8
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               97.2
Total number of prefixes smaller than registry allocations:      181128

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

Prefixes being announced by APNIC Region ASes:                   131849
    Total APNIC prefixes after maximum aggregation:               38372
    APNIC Deaggregation factor:                                    3.44
Prefixes being announced from the APNIC address blocks:          137413
    Unique aggregates announced from the APNIC address blocks:    55868
APNIC Region origin ASes present in the Internet Routing Table:    5015
    APNIC Prefixes per ASN:                                       27.40
APNIC Region origin ASes announcing only one prefix:               1205
APNIC Region transit ASes present in the Internet Routing Table:    871
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         44
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1331
Number of APNIC addresses announced to Internet:              746142208
    Equivalent to 44 /8s, 121 /16s and 58 /24s
    Percentage of available APNIC address space announced:         87.2

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:                    176640
    Total ARIN prefixes after maximum aggregation:                87315
    ARIN Deaggregation factor:                                     2.02
Prefixes being announced from the ARIN address blocks:           178608
    Unique aggregates announced from the ARIN address blocks:     83891
ARIN Region origin ASes present in the Internet Routing Table:    16506
    ARIN Prefixes per ASN:                                        10.82
ARIN Region origin ASes announcing only one prefix:                6077
ARIN Region transit ASes present in the Internet Routing Table:    1705
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          21
Number of ARIN region 32-bit ASNs visible in the Routing Table:     366
Number of ARIN addresses announced to Internet:              1061694240
    Equivalent to 63 /8s, 72 /16s and 43 /24s
    Percentage of available ARIN address space announced:          56.2

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:                    130293
    Total RIPE prefixes after maximum aggregation:                64794
    RIPE Deaggregation factor:                                     2.01
Prefixes being announced from the RIPE address blocks:           136645
    Unique aggregates announced from the RIPE address blocks:     83857
RIPE Region origin ASes present in the Internet Routing Table:    17899
    RIPE Prefixes per ASN:                                         7.63
RIPE Region origin ASes announcing only one prefix:                8151
RIPE Region transit ASes present in the Internet Routing Table:    2968
Average RIPE Region AS path length visible:                         4.9
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    3483
Number of RIPE addresses announced to Internet:               693822852
    Equivalent to 41 /8s, 90 /16s and 229 /24s
    Percentage of available RIPE address space announced:         100.9

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:                   58879
    Total LACNIC prefixes after maximum aggregation:              11040
    LACNIC Deaggregation factor:                                   5.33
Prefixes being announced from the LACNIC address blocks:          68633
    Unique aggregates announced from the LACNIC address blocks:   31804
LACNIC Region origin ASes present in the Internet Routing Table:   2411
    LACNIC Prefixes per ASN:                                      28.47
LACNIC Region origin ASes announcing only one prefix:               627
LACNIC Region transit ASes present in the Internet Routing Table:   490
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1543
Number of LACNIC addresses announced to Internet:             167955456
    Equivalent to 10 /8s, 2 /16s and 204 /24s
    Percentage of available LACNIC address space announced:       100.1

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:                  12558
    Total AfriNIC prefixes after maximum aggregation:              3006
    AfriNIC Deaggregation factor:                                  4.18
Prefixes being announced from the AfriNIC address blocks:         13620
    Unique aggregates announced from the AfriNIC address blocks:   5068
AfriNIC Region origin ASes present in the Internet Routing Table:   737
    AfriNIC Prefixes per ASN:                                     18.48
AfriNIC Region origin ASes announcing only one prefix:              204
AfriNIC Region transit ASes present in the Internet Routing Table:  154
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   90
Number of AfriNIC addresses announced to Internet:             63654656
    Equivalent to 3 /8s, 203 /16s and 75 /24s
    Percentage of available AfriNIC address space announced:       63.2

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     2874      11553         909   Korea Telecom
17974     2813        904          78   PT Telekomunikasi Indonesia
 7545     2575        336         128   TPG Telecom Limited
 4755     1988        422         211   TATA Communications formerly 
 4538     1760       4190          71   China Education and Research 
 9829     1675       1324          34   National Internet Backbone
 9808     1546       8717          28   Guangdong Mobile Communicatio
 4808     1459       2251         439   CNCGROUP IP network China169 
 9583     1397        132         555   Sify Limited
 9498     1303        334          95   BHARTI Airtel Ltd.

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
22773     2985       2955         141   Cox Communications Inc.
 6389     2891       3688          51   BellSouth.net Inc.
 3356     2551      10683         480   Level 3 Communications, Inc.
18566     2041        379         183   MegaPath Corporation
20115     1849       1831         434   Charter Communications
 6983     1705        866         245   EarthLink, Inc.
 4323     1628       1036         409   tw telecom holdings, inc.
30036     1522        312         507   Mediacom Communications Corp
  701     1389      11268         677   MCI Communications Services, 
22561     1327        412         241   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
39891     2472        128           6   SaudiNet, Saudi Telecom Compa
34984     1971        303         359   TELLCOM ILETISIM HIZMETLERI A
20940     1625        632        1207   Akamai International B.V.
 8402     1397        544          15   OJSC "Vimpelcom"
 6849     1214        356          24   JSC "Ukrtelecom"
31148     1046         45          21   Freenet Ltd.
13188     1015         96          70   TOV "Bank-Inform"
 8551      904        373          48   Bezeq International-Ltd
12479      873        796          82   France Telecom Espana SA
 9198      845        349          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
10620     3123        507         216   Telmex Colombia S.A.
28573     2321       2156         116   NET Serviços de Comunicação S
 7303     1793       1190         233   Telecom Argentina S.A.
 6147     1579        374          30   Telefonica del Peru S.A.A.
 8151     1544       3124         446   Uninet S.A. de C.V.
 6503     1200        421          58   Axtel, S.A.B. de C.V.
 7738     1001       1882          42   Telemar Norte Leste S.A.
 3816      922        400         150   COLOMBIA TELECOMUNICACIONES S
26615      921       2325          35   Tim Celular S.A.
18881      863       1036          22   Global Village Telecom

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
 8452     1500        958          13   TE-AS
24863      928        282          31   Link Egypt (Link.NET)
36903      479        241          90   Office National des Postes et
36992      402       1101          31   ETISALAT MISR
37492      319        155          71   Orange Tunisie
24835      299        144           9   Vodafone Data
 3741      250        921         209   Internet Solutions
29571      234         21          12   Cote d'Ivoire Telecom
36947      196        712          14   Telecom Algeria
15706      172         32           6   Sudatel (Sudan Telecom Co. Lt

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
10620     3123        507         216   Telmex Colombia S.A.
22773     2985       2955         141   Cox Communications Inc.
 6389     2891       3688          51   BellSouth.net Inc.
 4766     2874      11553         909   Korea Telecom
17974     2813        904          78   PT Telekomunikasi Indonesia
 7545     2575        336         128   TPG Telecom Limited
 3356     2551      10683         480   Level 3 Communications, Inc.
39891     2472        128           6   SaudiNet, Saudi Telecom Compa
28573     2321       2156         116   NET Serviços de Comunicação S
18566     2041        379         183   MegaPath Corporation

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

Global Per AS Maximum Aggr summary
----------------------------------

  ASN   No of nets  Net Savings Description
22773      2985        2844      Cox Communications Inc.
 6389      2891        2840      BellSouth.net Inc.
17974      2813        2735      PT Telekomunikasi Indonesia
39891      2472        2466      SaudiNet, Saudi Telecom Compa
 7545      2575        2447      TPG Telecom Limited
28573      2321        2205      NET Serviços de Comunicação S
 3356      2551        2071      Level 3 Communications, Inc.
 4766      2874        1965      Korea Telecom
18566      2041        1858      MegaPath Corporation
 4755      1988        1777      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
36806   UNALLOCATED  4.21.41.0/24          3356       Level 3 Communicatio
30662   UNALLOCATED  8.2.129.0/24          3356       Level 3 Communicatio
47092   UNALLOCATED  8.8.204.0/24         16410       The Reynolds and Rey
53506   UNALLOCATED  8.17.102.0/23         3356       Level 3 Communicatio
46467   UNALLOCATED  8.19.192.0/24        46887       Lightower Fiber Netw
18985   UNALLOCATED  8.21.68.0/22          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
27205   UNALLOCATED  8.38.16.0/21          6461       Abovenet Communicati
  598   UNALLOCATED  8.39.237.0/24         3356       Level 3 Communicatio

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
23.226.112.0/20      62788     Bitfinite LLC
23.252.224.0/20      62502     >>UNKNOWN<<
23.252.224.0/21      62502     >>UNKNOWN<<
23.252.232.0/21      62502     >>UNKNOWN<<
27.100.7.0/24        56096     >>UNKNOWN<<
31.217.248.0/21      44902     COVAGE NETWORKS SASU
41.73.1.0/24         37004     >>UNKNOWN<<
41.73.10.0/24        37004     >>UNKNOWN<<
41.73.11.0/24        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      /10:34      /11:92      /12:264     
/13:505     /14:998     /15:1723    /16:12969   /17:7161    /18:12156   
/19:25113   /20:35743   /21:38522   /22:57910   /23:50691   /24:288484  
/25:1079    /26:1108    /27:670     /28:17      /29:13      /30:8       
/31:0       /32:13      

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

  ASN   No of nets  Total ann.   Description
39891     2432          2472      SaudiNet, Saudi Telecom Compa
22773     2201          2985      Cox Communications Inc.
18566     1996          2041      MegaPath Corporation
 6389     1671          2891      BellSouth.net Inc.
30036     1368          1522      Mediacom Communications Corp
 6983     1352          1705      EarthLink, Inc.
34984     1278          1971      TELLCOM ILETISIM HIZMETLERI A
11492     1128          1191      CABLE ONE, INC.
 6147     1123          1579      Telefonica del Peru S.A.A.
10620     1108          3123      Telmex Colombia S.A.

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

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

   1:1513      2:674       3:1         4:98        5:1724      6:21     
   8:1424     12:1840     13:4        14:1306     15:17       16:2      
  17:42       18:21       20:49       23:1184     24:1672     27:1849   
  31:1487     32:39       33:2        34:5        35:3        36:118    
  37:1851     38:1009     39:10       40:237      41:2973     42:258    
  43:1127     44:25       45:252      46:2187     47:36       49:838    
  50:789      52:12       54:69       55:8        56:8        57:36     
  58:1201     59:683      60:465      61:1774     62:1313     63:1912   
  64:4453     65:2266     66:4116     67:2030     68:1030     69:3248   
  70:945      71:435      72:1959     74:2610     75:318      76:405    
  77:1493     78:1295     79:792      80:1319     81:1332     82:817    
  83:672      84:682      85:1350     86:391      87:1082     88:516    
  89:1766     90:150      91:5930     92:794      93:2178     94:2032   
  95:2123     96:429      97:340      98:1056     99:45      100:73     
 101:797     102:1       103:6871    104:1402    105:61      106:220    
 107:893     108:610     109:2007    110:1078    111:1474    112:744    
 113:1044    114:832     115:1245    116:1348    117:1008    118:1682   
 119:1436    120:442     121:1035    122:2182    123:1726    124:1498   
 125:1576    128:648     129:356     130:381     131:1134    132:486    
 133:167     134:412     135:89      136:335     137:299     138:522    
 139:174     140:231     141:420     142:632     143:477     144:530    
 145:109     146:690     147:578     148:1103    149:458     150:563    
 151:607     152:496     153:239     154:387     155:728     156:403    
 157:331     158:263     159:974     160:370     161:636     162:1922   
 163:385     164:659     165:677     166:323     167:705     168:1023   
 169:153     170:1457    171:230     172:42      173:1574    174:698    
 175:630     176:1432    177:3749    178:2054    179:853     180:1920   
 181:1629    182:1724    183:610     184:775     185:3057    186:2685   
 187:1864    188:2018    189:1584    190:7680    191:943     192:8153   
 193:5576    194:4079    195:3647    196:1664    197:1018    198:5496   
 199:5534    200:6552    201:3009    202:9501    203:9075    204:4649   
 205:2740    206:2987    207:2991    208:3951    209:3903    210:3510   
 211:1850    212:2481    213:2264    214:844     215:69      216:5527   
 217:1793    218:673     219:469     220:1436    221:788     222:466    
 223:654    

End of report


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