Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Apr 11 18:11:52 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 12 Apr, 2014

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

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

BGP routing table entries examined:                              490753
    Prefixes after maximum aggregation:                          193016
    Deaggregation factor:                                          2.54
    Unique aggregates announced to Internet:                     242489
Total ASes present in the Internet Routing Table:                 46574
    Prefixes per ASN:                                             10.54
Origin-only ASes present in the Internet Routing Table:           35707
Origin ASes announcing only one prefix:                           16364
Transit ASes present in the Internet Routing Table:                6067
Transit-only ASes present in the Internet Routing Table:            173
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      53
    Max AS path prepend of ASN ( 50404)                              51
Prefixes from unregistered ASNs in the Routing Table:              1855
    Unregistered ASNs in the Routing Table:                         471
Number of 32-bit ASNs allocated by the RIRs:                       6366
Number of 32-bit ASNs visible in the Routing Table:                4800
Prefixes from 32-bit ASNs in the Routing Table:                   15763
Number of bogon 32-bit ASNs visible in the Routing Table:            95
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            493
Number of addresses announced to Internet:                   2667159300
    Equivalent to 158 /8s, 249 /16s and 159 /24s
    Percentage of available address space announced:               72.0
    Percentage of allocated address space announced:               72.0
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               96.1
Total number of prefixes smaller than registry allocations:      171113

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

Prefixes being announced by APNIC Region ASes:                   116260
    Total APNIC prefixes after maximum aggregation:               34801
    APNIC Deaggregation factor:                                    3.34
Prefixes being announced from the APNIC address blocks:          119063
    Unique aggregates announced from the APNIC address blocks:    49824
APNIC Region origin ASes present in the Internet Routing Table:    4911
    APNIC Prefixes per ASN:                                       24.24
APNIC Region origin ASes announcing only one prefix:               1222
APNIC Region transit ASes present in the Internet Routing Table:    859
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         25
Number of APNIC region 32-bit ASNs visible in the Routing Table:    906
Number of APNIC addresses announced to Internet:              729825408
    Equivalent to 43 /8s, 128 /16s and 64 /24s
    Percentage of available APNIC address space announced:         85.3

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:                    167314
    Total ARIN prefixes after maximum aggregation:                82965
    ARIN Deaggregation factor:                                     2.02
Prefixes being announced from the ARIN address blocks:           168705
    Unique aggregates announced from the ARIN address blocks:     78477
ARIN Region origin ASes present in the Internet Routing Table:    16199
    ARIN Prefixes per ASN:                                        10.41
ARIN Region origin ASes announcing only one prefix:                6096
ARIN Region transit ASes present in the Internet Routing Table:    1676
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:      84
Number of ARIN addresses announced to Internet:              1068639616
    Equivalent to 63 /8s, 178 /16s and 37 /24s
    Percentage of available ARIN address space announced:          56.5

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:                    123278
    Total RIPE prefixes after maximum aggregation:                62465
    RIPE Deaggregation factor:                                     1.97
Prefixes being announced from the RIPE address blocks:           127543
    Unique aggregates announced from the RIPE address blocks:     81103
RIPE Region origin ASes present in the Internet Routing Table:    17665
    RIPE Prefixes per ASN:                                         7.22
RIPE Region origin ASes announcing only one prefix:                8294
RIPE Region transit ASes present in the Internet Routing Table:    2864
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:    2686
Number of RIPE addresses announced to Internet:               657604740
    Equivalent to 39 /8s, 50 /16s and 64 /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:                   55643
    Total LACNIC prefixes after maximum aggregation:              10081
    LACNIC Deaggregation factor:                                   5.52
Prefixes being announced from the LACNIC address blocks:          61878
    Unique aggregates announced from the LACNIC address blocks:   28388
LACNIC Region origin ASes present in the Internet Routing Table:   2085
    LACNIC Prefixes per ASN:                                      29.68
LACNIC Region origin ASes announcing only one prefix:               551
LACNIC Region transit ASes present in the Internet Routing Table:   434
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        26
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1102
Number of LACNIC addresses announced to Internet:             157533312
    Equivalent to 9 /8s, 99 /16s and 196 /24s
    Percentage of available LACNIC address space announced:        93.9

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:                  12389
    Total AfriNIC prefixes after maximum aggregation:              2666
    AfriNIC Deaggregation factor:                                  4.65
Prefixes being announced from the AfriNIC address blocks:         13071
    Unique aggregates announced from the AfriNIC address blocks:   4272
AfriNIC Region origin ASes present in the Internet Routing Table:   715
    AfriNIC Prefixes per ASN:                                     18.28
AfriNIC Region origin ASes announcing only one prefix:              201
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:   22
Number of AfriNIC addresses announced to Internet:             53141504
    Equivalent to 3 /8s, 42 /16s and 224 /24s
    Percentage of available AfriNIC address space announced:       52.8

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     2919      11589         898   Korea Telecom
17974     2780        903          78   PT Telekomunikasi Indonesia
 7545     2216        320         115   TPG Telecom Limited
 4755     1843        396         197   TATA Communications formerly 
 9829     1622       1288          35   National Internet Backbone
 4808     1366       2226         386   CNCGROUP IP network China169 
 9583     1317        102         534   Sify Limited
 9498     1245        310          75   BHARTI Airtel Ltd.
 7552     1223       1082          13   Viettel Corporation
24560     1123        384         177   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     2997       3688          53   BellSouth.net Inc.
22773     2411       2938         137   Cox Communications Inc.
 1785     2192        697         130   PaeTec Communications, Inc.
18566     2047        379         178   MegaPath Corporation
20115     1702       1683         581   Charter Communications
 4323     1635       1074         416   tw telecom holdings, inc.
  701     1480      11156         751   MCI Communications Services, 
30036     1395        301         545   Mediacom Communications Corp
22561     1309        402         232   CenturyTel Internet Holdings,
 7018     1268      18243         831   AT&T Services, Inc.

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

RIPE Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8402     1649        544          16   OJSC "Vimpelcom"
34984     1555        263         278   TELLCOM ILETISIM HIZMETLERI A
20940     1294        495         981   Akamai International B.V.
31148     1017         45          21   Freenet Ltd.
13188      945         94         109   TOV "Bank-Inform"
 8551      927        370          41   Bezeq International-Ltd
 6849      830        360          30   JSC "Ukrtelecom"
 6830      763       2329         426   Liberty Global Operations B.V
12479      718        797          56   France Telecom Espana SA
35228      553        245          17   Telefonica UK Limited

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     3662       1948          97   NET Serviços de Comunicação S
10620     2820        454         211   Telmex Colombia S.A.
18881     1922        972          21   Global Village Telecom
 7303     1753       1173         229   Telecom Argentina S.A.
 8151     1398       2940         404   Uninet S.A. de C.V.
 6503     1154        434          60   Axtel, S.A.B. de C.V.
 7738      914       1754          40   Telemar Norte Leste S.A.
27947      863        114          50   Telconet S.A
11830      845        364          15   Instituto Costarricense de El
 3816      795        321         133   COLOMBIA TELECOMUNICACIONES S

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     1637        240           6   Sudanese Mobile Telephone (ZA
24863      954        280          26   Link Egypt (Link.NET)
 6713      614        722          28   Office National des Postes et
 8452      568        958          13   TE-AS
24835      304        144           9   Vodafone Data
36992      295        783          24   ETISALAT MISR
 3741      248        921         209   Internet Solutions
37054      234         23          11   Data Telecom Service
29571      219         22          18   Cote d'Ivoire Telecom
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     3662       1948          97   NET Serviços de Comunicação S
 6389     2997       3688          53   BellSouth.net Inc.
 4766     2919      11589         898   Korea Telecom
10620     2820        454         211   Telmex Colombia S.A.
17974     2780        903          78   PT Telekomunikasi Indonesia
22773     2411       2938         137   Cox Communications Inc.
 7545     2216        320         115   TPG Telecom Limited
 1785     2192        697         130   PaeTec Communications, Inc.
18566     2047        379         178   MegaPath Corporation
18881     1922        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      2997        2944      BellSouth.net Inc.
17974      2780        2702      PT Telekomunikasi Indonesia
10620      2820        2609      Telmex Colombia S.A.
22773      2411        2274      Cox Communications Inc.
 7545      2216        2101      TPG Telecom Limited
 1785      2192        2062      PaeTec Communications, Inc.
 4766      2919        2021      Korea Telecom
18881      1922        1901      Global Village Telecom
18566      2047        1869      MegaPath Corporation
 4755      1843        1646      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
14728   UNALLOCATED  8.8.192.0/23          3356       Level 3 Communicatio
14728   UNALLOCATED  8.8.196.0/22          3356       Level 3 Communicatio
14728   UNALLOCATED  8.8.200.0/23          3356       Level 3 Communicatio
14728   UNALLOCATED  8.8.202.0/23          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

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

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

Network            Origin AS  Description
24.55.64.0/21        36423     San Juan Cable, LLC
24.55.72.0/21        36423     San Juan Cable, LLC
24.55.80.0/21        36423     San Juan Cable, LLC
24.55.88.0/21        36423     San Juan Cable, LLC
24.55.96.0/21        36423     San Juan Cable, LLC
24.55.104.0/21       36423     San Juan Cable, LLC
24.55.112.0/21       36423     San Juan Cable, LLC
24.55.120.0/21       36423     San Juan Cable, LLC
24.137.224.0/21      36423     San Juan Cable, LLC
24.137.232.0/21      36423     San Juan Cable, LLC

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      /10:30      /11:90      /12:258     
/13:477     /14:958     /15:1671    /16:12921   /17:6806    /18:11584   
/19:23973   /20:33892   /21:36648   /22:52388   /23:45822   /24:260959  
/25:816     /26:950     /27:403     /28:13      /29:19      /30:8       
/31:1       /32:38      

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

  ASN   No of nets  Total ann.   Description
18566     2002          2047      MegaPath Corporation
 6389     1695          2997      BellSouth.net Inc.
22773     1650          2411      Cox Communications Inc.
36998     1599          1637      Sudanese Mobile Telephone (ZA
 8402     1328          1649      OJSC "Vimpelcom"
30036     1233          1395      Mediacom Communications Corp
11492     1185          1233      CABLE ONE, INC.
 1785     1165          2192      PaeTec Communications, Inc.
 6983     1041          1228      ITC^Deltacom
34984     1023          1555      TELLCOM ILETISIM HIZMETLERI A

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

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

   1:1022      2:706       3:3         4:15        5:935       6:19     
   8:721      12:1854     13:4        14:972      15:13       16:2      
  17:30       18:21       20:35       23:811      24:1745     25:1      
  27:1752     31:1505     32:40       33:2        34:5        36:129    
  37:1819     38:946      39:5        40:197      41:3203     42:246    
  44:16       46:2193     47:18       49:686      50:910      52:12     
  54:46       55:6        57:29       58:1158     59:606      60:392    
  61:1529     62:1233     63:1981     64:4336     65:2246     66:4155   
  67:2063     68:1035     69:3296     70:843      71:450      72:1989   
  74:2642     75:312      76:412      77:1473     78:992      79:709    
  80:1310     81:1144     82:746      83:754      84:706      85:1264   
  86:451      87:1197     88:520      89:1823     90:140      91:5748   
  92:668      93:1717     94:2067     95:1522     96:544      97:350    
  98:1075     99:46      100:50      101:785     103:4626    105:534    
 106:168     107:552     108:564     109:2025    110:985     111:1273   
 112:650     113:848     114:882     115:1106    116:1047    117:882    
 118:1388    119:1330    120:375     121:802     122:1912    123:1291   
 124:1430    125:1400    128:657     129:324     130:345     131:653    
 132:395     133:162     134:319     135:73      136:251     137:323    
 138:356     139:168     140:211     141:360     142:571     143:418    
 144:501     145:104     146:606     147:434     148:924     149:361    
 150:161     151:625     152:422     153:218     154:251     155:477    
 156:332     157:339     158:239     159:874     160:343     161:479    
 162:1323    163:220     164:685     165:612     166:281     167:610    
 168:1028    169:124     170:1368    171:187     172:21      173:1633   
 174:694     175:617     176:1485    177:2903    178:1947    179:648    
 180:1710    181:1102    182:1533    183:516     184:710     185:1488   
 186:2800    187:1500    188:1930    189:1453    190:7424    191:191    
 192:7168    193:5481    194:4026    195:3382    196:1392    197:1143   
 198:5004    199:5620    200:6083    201:2644    202:8998    203:8904   
 204:4660    205:2703    206:2920    207:2927    208:4012    209:3712   
 210:3104    211:1698    212:2176    213:2072    214:900     215:85     
 216:5468    217:1691    218:584     219:321     220:1282    221:594    
 222:350     223:613    

End of report




More information about the NANOG mailing list