[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Oct 24 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 25 Oct, 2014

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

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

BGP routing table entries examined:                              516410
    Prefixes after maximum aggregation:                          199601
    Deaggregation factor:                                          2.59
    Unique aggregates announced to Internet:                     253017
Total ASes present in the Internet Routing Table:                 48396
    Prefixes per ASN:                                             10.67
Origin-only ASes present in the Internet Routing Table:           36301
Origin ASes announcing only one prefix:                           16347
Transit ASes present in the Internet Routing Table:                6157
Transit-only ASes present in the Internet Routing Table:            167
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                     118
    Max AS path prepend of ASN ( 55644)                             111
Prefixes from unregistered ASNs in the Routing Table:              1780
    Unregistered ASNs in the Routing Table:                         432
Number of 32-bit ASNs allocated by the RIRs:                       7724
Number of 32-bit ASNs visible in the Routing Table:                5938
Prefixes from 32-bit ASNs in the Routing Table:                   21106
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:            339
Number of addresses announced to Internet:                   2712404644
    Equivalent to 161 /8s, 172 /16s and 2 /24s
    Percentage of available address space announced:               73.3
    Percentage of allocated address space announced:               73.3
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               97.0
Total number of prefixes smaller than registry allocations:      176609

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

Prefixes being announced by APNIC Region ASes:                   127195
    Total APNIC prefixes after maximum aggregation:               36794
    APNIC Deaggregation factor:                                    3.46
Prefixes being announced from the APNIC address blocks:          131148
    Unique aggregates announced from the APNIC address blocks:    53256
APNIC Region origin ASes present in the Internet Routing Table:    4978
    APNIC Prefixes per ASN:                                       26.35
APNIC Region origin ASes announcing only one prefix:               1189
APNIC Region transit ASes present in the Internet Routing Table:    851
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                        118
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1137
Number of APNIC addresses announced to Internet:              736357984
    Equivalent to 43 /8s, 227 /16s and 238 /24s
    Percentage of available APNIC address space announced:         86.1

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:                    171808
    Total ARIN prefixes after maximum aggregation:                85426
    ARIN Deaggregation factor:                                     2.01
Prefixes being announced from the ARIN address blocks:           173635
    Unique aggregates announced from the ARIN address blocks:     81287
ARIN Region origin ASes present in the Internet Routing Table:    16395
    ARIN Prefixes per ASN:                                        10.59
ARIN Region origin ASes announcing only one prefix:                6105
ARIN Region transit ASes present in the Internet Routing Table:    1692
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:     235
Number of ARIN addresses announced to Internet:              1052746688
    Equivalent to 62 /8s, 191 /16s and 163 /24s
    Percentage of available ARIN address space announced:          55.7

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:                    125553
    Total RIPE prefixes after maximum aggregation:                63688
    RIPE Deaggregation factor:                                     1.97
Prefixes being announced from the RIPE address blocks:           131038
    Unique aggregates announced from the RIPE address blocks:     82811
RIPE Region origin ASes present in the Internet Routing Table:    17792
    RIPE Prefixes per ASN:                                         7.36
RIPE Region origin ASes announcing only one prefix:                8189
RIPE Region transit ASes present in the Internet Routing Table:    2906
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:    3147
Number of RIPE addresses announced to Internet:               691970180
    Equivalent to 41 /8s, 62 /16s and 160 /24s
    Percentage of available RIPE address space announced:         100.6

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:                   58770
    Total LACNIC prefixes after maximum aggregation:              10794
    LACNIC Deaggregation factor:                                   5.44
Prefixes being announced from the LACNIC address blocks:          67543
    Unique aggregates announced from the LACNIC address blocks:   30607
LACNIC Region origin ASes present in the Internet Routing Table:   2360
    LACNIC Prefixes per ASN:                                      28.62
LACNIC Region origin ASes announcing only one prefix:               650
LACNIC Region transit ASes present in the Internet Routing Table:   470
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:  1362
Number of LACNIC addresses announced to Internet:             171410432
    Equivalent to 10 /8s, 55 /16s and 132 /24s
    Percentage of available LACNIC address space announced:       102.2

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:                  11876
    Total AfriNIC prefixes after maximum aggregation:              2853
    AfriNIC Deaggregation factor:                                  4.16
Prefixes being announced from the AfriNIC address blocks:         12707
    Unique aggregates announced from the AfriNIC address blocks:   4750
AfriNIC Region origin ASes present in the Internet Routing Table:   735
    AfriNIC Prefixes per ASN:                                     17.29
AfriNIC Region origin ASes announcing only one prefix:              214
AfriNIC Region transit ASes present in the Internet Routing Table:  154
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   57
Number of AfriNIC addresses announced to Internet:             59635968
    Equivalent to 3 /8s, 141 /16s and 249 /24s
    Percentage of available AfriNIC address space announced:       59.2

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     2949      11584         926   Korea Telecom
17974     2817        903          77   PT Telekomunikasi Indonesia
 7545     2423        336         124   TPG Telecom Limited
 4755     1919        412         189   TATA Communications formerly 
 9829     1670       1322          37   National Internet Backbone
 9808     1477       6639          15   Guangdong Mobile Communicatio
 4808     1409       2204         420   CNCGROUP IP network China169 
 9583     1359        111         559   Sify Limited
 9498     1307        333          91   BHARTI Airtel Ltd.
 7552     1187       1066          12   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     2896       3688          51   BellSouth.net Inc.
22773     2839       2940         142   Cox Communications Inc.
18566     2046        379         182   MegaPath Corporation
 7029     1943       1957         312   Windstream Communications Inc
20115     1810       1790         479   Charter Communications
 4323     1636       1052         410   tw telecom holdings, inc.
 6983     1540        867         250   ITC^Deltacom
30036     1485        309         612   Mediacom Communications Corp
  701     1426      11266         710   MCI Communications Services, 
22561     1303        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     1840        297         352   TELLCOM ILETISIM HIZMETLERI A
20940     1492        577        1101   Akamai International B.V.
 8402     1410        544          15   OJSC "Vimpelcom"
31148     1044         45          21   Freenet Ltd.
13188     1037        100          29   TOV "Bank-Inform"
 8551      961        372          41   Bezeq International-Ltd
 6849      835        356          26   JSC "Ukrtelecom"
 6830      782       2339         435   Liberty Global Operations B.V
12479      751        785          96   France Telecom Espana SA
 9198      671        346          30   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     3008        487         241   Telmex Colombia S.A.
28573     2642       2315         107   NET Serviços de Comunicação S
 6147     1783        374          30   Telefonica del Peru S.A.A.
 7303     1765       1171         241   Telecom Argentina S.A.
 8151     1481       3017         433   Uninet S.A. de C.V.
 6503     1139        434          61   Axtel, S.A.B. de C.V.
 7738      999       1882          41   Telemar Norte Leste S.A.
26615      913       2325          35   Tim Celular S.A.
27947      912        130          51   Telconet S.A
 3816      890        383         146   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
 8452     1192        958          13   TE-AS
24863      948        280          26   Link Egypt (Link.NET)
 6713      678        760          38   Office National des Postes et
36992      343        824          28   ETISALAT MISR
24835      308        144           9   Vodafone Data
 3741      249        920         212   Internet Solutions
29571      246         22          17   Cote d'Ivoire Telecom
37054      231         19           6   Data Telecom Service
15706      186         17           6   Sudatel (Sudan Telecom Co. Lt
37457      180        160           4   Telkom SA Ltd.

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     3008        487         241   Telmex Colombia S.A.
 4766     2949      11584         926   Korea Telecom
 6389     2896       3688          51   BellSouth.net Inc.
22773     2839       2940         142   Cox Communications Inc.
17974     2817        903          77   PT Telekomunikasi Indonesia
28573     2642       2315         107   NET Serviços de Comunicação S
 7545     2423        336         124   TPG Telecom Limited
18566     2046        379         182   MegaPath Corporation
 7029     1943       1957         312   Windstream Communications Inc
 4755     1919        412         189   TATA Communications formerly 

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      2896        2845      BellSouth.net Inc.
17974      2817        2740      PT Telekomunikasi Indonesia
22773      2839        2697      Cox Communications Inc.
28573      2642        2535      NET Serviços de Comunicação S
 7545      2423        2299      TPG Telecom Limited
 4766      2949        2023      Korea Telecom
18566      2046        1864      MegaPath Corporation
 6147      1783        1753      Telefonica del Peru S.A.A.
 4755      1919        1730      TATA Communications formerly 
 9829      1670        1633      National Internet Backbone

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         3356       Level 3 Communicatio
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     
/13:500     /14:1006    /15:1713    /16:13040   /17:7133    /18:11862   
/19:24619   /20:35303   /21:37342   /22:55162   /23:48364   /24:277027  
/25:1101    /26:1060    /27:709     /28:14      /29:19      /30:11      
/31:1       /32:13      

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

  ASN   No of nets  Total ann.   Description
22773     2061          2839      Cox Communications Inc.
18566     2001          2046      MegaPath Corporation
 6389     1676          2896      BellSouth.net Inc.
 6147     1347          1783      Telefonica del Peru S.A.A.
30036     1332          1485      Mediacom Communications Corp
 6983     1226          1540      ITC^Deltacom
 7029     1172          1943      Windstream Communications Inc
34984     1160          1840      TELLCOM ILETISIM HIZMETLERI A
11492     1147          1197      CABLE ONE, INC.
 8402     1087          1410      OJSC "Vimpelcom"

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

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

   1:1355      2:679       3:3         4:17        5:1176      6:21     
   8:770      12:1854     13:4        14:1173     15:17       16:2      
  17:42       18:21       20:51       23:945      24:1778     27:1817   
  31:1332     32:40       33:2        34:5        36:154      37:1803   
  38:1008     39:13       40:233      41:2906     42:260      43:550    
  44:18       45:81       46:2062     47:28       49:740      50:790    
  52:12       54:53       55:3        56:10       57:32       58:1141   
  59:644      60:435      61:1716     62:1265     63:1835     64:4423   
  65:2271     66:4193     67:2027     68:1093     69:3259     70:873    
  71:478      72:1985     74:2605     75:378      76:410      77:1606   
  78:1012     79:764      80:1323     81:1283     82:791      83:659    
  84:725      85:1354     86:427      87:1185     88:497      89:1801   
  90:138      91:5801     92:786      93:1642     94:2035     95:1305   
  96:424      97:340      98:1100     99:48      100:65      101:734    
 103:5905    104:477     105:155     106:181     107:651     108:580    
 109:2000    110:1048    111:1423    112:720     113:909     114:800    
 115:1154    116:1154    117:999     118:1544    119:1376    120:740    
 121:967     122:2209    123:1673    124:1446    125:1539    128:627    
 129:386     130:369     131:925     132:435     133:165     134:322    
 135:81      136:324     137:314     138:381     139:200     140:223    
 141:413     142:602     143:454     144:509     145:111     146:679    
 147:561     148:1031    149:407     150:503     151:634     152:477    
 153:240     154:398     155:580     156:380     157:330     158:280    
 159:923     160:330     161:604     162:1810    163:405     164:648    
 165:672     166:363     167:688     168:1121    169:122     170:1425   
 171:188     172:60      173:1634    174:708     175:612     176:1537   
 177:3675    178:2078    179:811     180:1764    181:1782    182:1661   
 183:702     184:710     185:2229    186:2962    187:1687    188:2010   
 189:1529    190:7908    191:780     192:7732    193:5558    194:4074   
 195:3616    196:1633    197:734     198:5277    199:5487    200:6485   
 201:2907    202:9129    203:9043    204:4704    205:2660    206:3088   
 207:2970    208:3923    209:3760    210:3316    211:1856    212:2411   
 213:2164    214:857     215:86      216:5624    217:1707    218:623    
 219:391     220:1376    221:794     222:481     223:696    

End of report


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