[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Sat Sep 5 14:11:31 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   0400 +10GMT Sat 05 Sep, 2015

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

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

BGP routing table entries examined:                              557095
    Prefixes after maximum aggregation (per Origin AS):          210220
    Deaggregation factor:                                          2.65
    Unique aggregates announced (without unneeded subnets):      273158
Total ASes present in the Internet Routing Table:                 51335
    Prefixes per ASN:                                             10.85
Origin-only ASes present in the Internet Routing Table:           36652
Origin ASes announcing only one prefix:                           16121
Transit ASes present in the Internet Routing Table:                6394
Transit-only ASes present in the Internet Routing Table:            174
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      45
    Max AS path prepend of ASN ( 55644)                              41
Prefixes from unregistered ASNs in the Routing Table:              1084
    Unregistered ASNs in the Routing Table:                         417
Number of 32-bit ASNs allocated by the RIRs:                      10864
Number of 32-bit ASNs visible in the Routing Table:                8289
Prefixes from 32-bit ASNs in the Routing Table:                   31110
Number of bogon 32-bit ASNs visible in the Routing Table:            19
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            549
Number of addresses announced to Internet:                   2791677888
    Equivalent to 166 /8s, 101 /16s and 159 /24s
    Percentage of available address space announced:               75.4
    Percentage of allocated address space announced:               75.4
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               97.6
Total number of prefixes smaller than registry allocations:      185801

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

Prefixes being announced by APNIC Region ASes:                   137442
    Total APNIC prefixes after maximum aggregation:               39619
    APNIC Deaggregation factor:                                    3.47
Prefixes being announced from the APNIC address blocks:          144696
    Unique aggregates announced from the APNIC address blocks:    59649
APNIC Region origin ASes present in the Internet Routing Table:    5082
    APNIC Prefixes per ASN:                                       28.47
APNIC Region origin ASes announcing only one prefix:               1207
APNIC Region transit ASes present in the Internet Routing Table:    890
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         38
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1616
Number of APNIC addresses announced to Internet:              752104064
    Equivalent to 44 /8s, 212 /16s and 50 /24s
    Percentage of available APNIC address space announced:         87.9

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-64098, 131072-135580
APNIC Address Blocks     1/8,  14/8,  27/8,  36/8,  39/8,  42/8,  43/8,
                        49/8,  58/8,  59/8,  60/8,  61/8, 101/8, 103/8,
                       106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
                       116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
                       123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
                       163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
                       203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
                       222/8, 223/8,

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                    180364
    Total ARIN prefixes after maximum aggregation:                88403
    ARIN Deaggregation factor:                                     2.04
Prefixes being announced from the ARIN address blocks:           183248
    Unique aggregates announced from the ARIN address blocks:     86047
ARIN Region origin ASes present in the Internet Routing Table:    16586
    ARIN Prefixes per ASN:                                        11.05
ARIN Region origin ASes announcing only one prefix:                6062
ARIN Region transit ASes present in the Internet Routing Table:    1738
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          27
Number of ARIN region 32-bit ASNs visible in the Routing Table:     647
Number of ARIN addresses announced to Internet:              1101600192
    Equivalent to 65 /8s, 169 /16s and 21 /24s
    Percentage of available ARIN address space announced:          58.3

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, 64198-64296, 393216-395164
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:                    135119
    Total RIPE prefixes after maximum aggregation:                67450
    RIPE Deaggregation factor:                                     2.00
Prefixes being announced from the RIPE address blocks:           142046
    Unique aggregates announced from the RIPE address blocks:     88128
RIPE Region origin ASes present in the Internet Routing Table:    17968
    RIPE Prefixes per ASN:                                         7.91
RIPE Region origin ASes announcing only one prefix:                8043
RIPE Region transit ASes present in the Internet Routing Table:    2997
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:    3989
Number of RIPE addresses announced to Internet:               699409536
    Equivalent to 41 /8s, 176 /16s and 36 /24s
    Percentage of available RIPE address space announced:         101.7

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, 196608-204287
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:                   60887
    Total LACNIC prefixes after maximum aggregation:              11605
    LACNIC Deaggregation factor:                                   5.25
Prefixes being announced from the LACNIC address blocks:          72568
    Unique aggregates announced from the LACNIC address blocks:   33625
LACNIC Region origin ASes present in the Internet Routing Table:   2465
    LACNIC Prefixes per ASN:                                      29.44
LACNIC Region origin ASes announcing only one prefix:               614
LACNIC Region transit ASes present in the Internet Routing Table:   524
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        28
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1894
Number of LACNIC addresses announced to Internet:             168755968
    Equivalent to 10 /8s, 15 /16s and 3 /24s
    Percentage of available LACNIC address space announced:       100.6

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:                  12049
    Total AfriNIC prefixes after maximum aggregation:              3097
    AfriNIC Deaggregation factor:                                  3.89
Prefixes being announced from the AfriNIC address blocks:         13988
    Unique aggregates announced from the AfriNIC address blocks:   5344
AfriNIC Region origin ASes present in the Internet Routing Table:   740
    AfriNIC Prefixes per ASN:                                     18.90
AfriNIC Region origin ASes announcing only one prefix:              195
AfriNIC Region transit ASes present in the Internet Routing Table:  164
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:  143
Number of AfriNIC addresses announced to Internet:             69319936
    Equivalent to 4 /8s, 33 /16s and 189 /24s
    Percentage of available AfriNIC address space announced:       68.9

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     3000      11134         979   Korea Telecom
 7545     2769        339         134   TPG Telecom Limited
17974     2709        904          80   PT Telekomunikasi Indonesia
 4755     2041        427         229   TATA Communications formerly 
 4538     1946       4190          71   China Education and Research 
 9829     1875       1374         201   National Internet Backbone
 9808     1585       8639          18   Guangdong Mobile Communicatio
 4808     1529       2254         474   CNCGROUP IP network China169 
 9583     1526        121         570   Sify Limited
 7552     1423       1084           9   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
22773     3165       2960         139   Cox Communications Inc.
 6389     2696       3688          51   BellSouth.net Inc.
 3356     2535      10709         499   Level 3 Communications, Inc.
18566     2146        389         257   MegaPath Corporation
20115     1881       1864         395   Charter Communications
 6983     1739        850         243   EarthLink, Inc.
 4323     1583       1005         404   tw telecom holdings, inc.
30036     1577        319         451   Mediacom Communications Corp
  701     1404      11401         679   MCI Communications Services, 
22561     1375        415         258   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
20940     2103        830        1528   Akamai International B.V.
34984     2014        306         377   TELLCOM ILETISIM HIZMETLERI A
 6849     1209        355          21   JSC "Ukrtelecom"
13188     1070         97          77   TOV "Bank-Inform"
31148     1049         46          23   Freenet Ltd.
 8402     1010        544          15   OJSC "Vimpelcom"
12479      990        965          78   France Telecom Espana SA
 8551      984        376          52   Bezeq International-Ltd
 6830      917       2694         468   Liberty Global Operations B.V

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     3349        538         167   Telmex Colombia S.A.
28573     2286       2169         124   NET Serviços de Comunicação S
 8151     1707       3272         481   Uninet S.A. de C.V.
 7303     1556        932         238   Telecom Argentina S.A.
 6147     1443        374          30   Telefonica del Peru S.A.A.
 6503     1285        445          58   Axtel, S.A.B. de C.V.
26615     1098       2325          35   Tim Celular S.A.
 7738      997       1882          41   Telemar Norte Leste S.A.
 3816      952        436         163   COLOMBIA TELECOMUNICACIONES S
11830      916        364          15   Instituto Costarricense de El

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      902       1470          14   TE-AS
24863      768        280          41   Link Egypt (Link.NET)
36903      512        258          99   Office National des Postes et
36992      439       1229          32   ETISALAT MISR
24835      280        146          12   Vodafone Data
 3741      247        855         203   Internet Solutions
29571      247         21          13   Cote d'Ivoire Telecom
37054      220         20           7   Data Telecom Service
36947      183        807          13   Telecom Algeria
15706      173         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     3349        538         167   Telmex Colombia S.A.
22773     3165       2960         139   Cox Communications Inc.
 4766     3000      11134         979   Korea Telecom
 7545     2769        339         134   TPG Telecom Limited
17974     2709        904          80   PT Telekomunikasi Indonesia
 6389     2696       3688          51   BellSouth.net Inc.
 3356     2535      10709         499   Level 3 Communications, Inc.
39891     2472        128           6   SaudiNet, Saudi Telecom Compa
28573     2286       2169         124   NET Serviços de Comunicação S
18566     2146        389         257   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      3165        3026      Cox Communications Inc.
 6389      2696        2645      BellSouth.net Inc.
 7545      2769        2635      TPG Telecom Limited
17974      2709        2629      PT Telekomunikasi Indonesia
39891      2472        2466      SaudiNet, Saudi Telecom Compa
28573      2286        2162      NET Serviços de Comunicação S
 3356      2535        2036      Level 3 Communications, Inc.
 4766      3000        2021      Korea Telecom
18566      2146        1889      MegaPath Corporation
 4538      1946        1875      China Education and Research 

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
47092   UNALLOCATED  8.8.204.0/24         16410       The Reynolds and Rey
53506   UNALLOCATED  8.17.102.0/23         2828       XO Communications
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
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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
100.100.1.0/24        9730     Bharti Telesonic Ltd

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

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

Network            Origin AS  Description
23.226.112.0/20      62788     >>UNKNOWN<<
23.249.144.0/20      40430     colo4jax, LLC
23.249.144.0/21      40430     colo4jax, LLC
23.249.152.0/21      40430     colo4jax, LLC
27.50.8.0/24         55548     Ravibhawan
27.50.9.0/24         55548     Ravibhawan
27.50.10.0/23        55548     Ravibhawan
27.100.7.0/24        56096     >>UNKNOWN<<
31.170.96.0/23       23456     32bit Transition AS
31.217.248.0/21      44902     COVAGE NETWORKS SASU

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        /8:17       /9:13      /10:36      /11:96      /12:261     
/13:500     /14:1005    /15:1739    /16:12892   /17:7224    /18:12408   
/19:25587   /20:36125   /21:38819   /22:61139   /23:53320   /24:303614  
/25:855     /26:928     /27:458     /28:14      /29:14      /30:9       
/31:0       /32:22      

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

  ASN   No of nets  Total ann.   Description
39891     2432          2472      SaudiNet, Saudi Telecom Compa
22773     2380          3165      Cox Communications Inc.
18566     2061          2146      MegaPath Corporation
 6389     1608          2696      BellSouth.net Inc.
30036     1397          1577      Mediacom Communications Corp
 6983     1386          1739      EarthLink, Inc.
34984     1334          2014      TELLCOM ILETISIM HIZMETLERI A
10620     1227          3349      Telmex Colombia S.A.
11492     1124          1207      CABLE ONE, INC.
22561     1048          1375      CenturyTel Internet Holdings,

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

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

   1:1574      2:689       4:97        5:1881      6:25        8:1403   
  11:1        12:1810     13:19       14:1414     15:17       16:2      
  17:49       18:22       20:49       23:1276     24:1752     27:2085   
  31:1612     32:37       33:2        34:4        35:3        36:163    
  37:2050     38:1057     39:15       40:71       41:2795     42:341    
  43:1508     44:30       45:1078     46:2370     47:54       49:937    
  50:792      52:22       54:86       55:5        56:28       57:42     
  58:1372     59:716      60:486      61:1757     62:1375     63:1899   
  64:4432     65:2251     66:3986     67:2054     68:1066     69:3230   
  70:1041     71:448      72:1972     74:2587     75:357      76:396    
  77:1357     78:1156     79:810      80:1356     81:1350     82:864    
  83:723      84:769      85:1385     86:450      87:1025     88:537    
  89:1932     90:150      91:5946     92:842      93:2264     94:2078   
  95:2159     96:422      97:348      98:970      99:55      100:72     
 101:847     103:8216    104:2025    105:87      106:347     107:1053   
 108:623     109:2143    110:1192    111:1467    112:823     113:1111   
 114:847     115:1328    116:1455    117:1103    118:1941    119:1472   
 120:451     121:1098    122:2173    123:1848    124:1517    125:1673   
 128:663     129:396     130:432     131:1247    132:500     133:165    
 134:416     135:103     136:340     137:316     138:1205    139:162    
 140:250     141:435     142:679     143:542     144:551     145:126    
 146:791     147:586     148:1253    149:432     150:594     151:796    
 152:531     153:254     154:510     155:871     156:422     157:422    
 158:347     159:1032    160:412     161:676     162:2049    163:452    
 164:693     165:715     166:301     167:868     168:1252    169:194    
 170:1476    171:249     172:253     173:1500    174:716     175:711    
 176:1429    177:3963    178:2187    179:983     180:1950    181:1671   
 182:1821    183:632     184:744     185:4200    186:2990    187:1837   
 188:2093    189:1638    190:7763    191:1150    192:8548    193:5662   
 194:4232    195:3652    196:1969    197:1066    198:5474    199:5527   
 200:6705    201:3304    202:9544    203:9188    204:4632    205:2888   
 206:3112    207:3042    208:3995    209:3919    210:3605    211:1930   
 212:2565    213:2229    214:860     215:74      216:5761    217:1789   
 218:734     219:466     220:1549    221:810     222:475     223:819    


End of report



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