[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jul 24 18:13:43 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 25 Jul, 2015

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

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

BGP routing table entries examined:                              553100
    Prefixes after maximum aggregation (per Origin AS):          209326
    Deaggregation factor:                                          2.64
    Unique aggregates announced (without unneeded subnets):      269834
Total ASes present in the Internet Routing Table:                 50975
    Prefixes per ASN:                                             10.85
Origin-only ASes present in the Internet Routing Table:           36693
Origin ASes announcing only one prefix:                           16176
Transit ASes present in the Internet Routing Table:                6344
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:                                      39
    Max AS path prepend of ASN ( 12486)                              32
Prefixes from unregistered ASNs in the Routing Table:              1826
    Unregistered ASNs in the Routing Table:                         576
Number of 32-bit ASNs allocated by the RIRs:                      10330
Number of 32-bit ASNs visible in the Routing Table:                7938
Prefixes from 32-bit ASNs in the Routing Table:                   29501
Number of bogon 32-bit ASNs visible in the Routing Table:            17
Special use prefixes present in the Routing Table:                    3
Prefixes being announced from unallocated address space:            417
Number of addresses announced to Internet:                   2770525221
    Equivalent to 165 /8s, 34 /16s and 220 /24s
    Percentage of available address space announced:               74.8
    Percentage of allocated address space announced:               74.8
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               97.5
Total number of prefixes smaller than registry allocations:      184978

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

Prefixes being announced by APNIC Region ASes:                   136914
    Total APNIC prefixes after maximum aggregation:               39806
    APNIC Deaggregation factor:                                    3.44
Prefixes being announced from the APNIC address blocks:          143793
    Unique aggregates announced from the APNIC address blocks:    58303
APNIC Region origin ASes present in the Internet Routing Table:    5075
    APNIC Prefixes per ASN:                                       28.33
APNIC Region origin ASes announcing only one prefix:               1196
APNIC Region transit ASes present in the Internet Routing Table:    883
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         39
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1558
Number of APNIC addresses announced to Internet:              751328325
    Equivalent to 44 /8s, 200 /16s and 92 /24s
    Percentage of available APNIC address space announced:         87.8

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:                    179653
    Total ARIN prefixes after maximum aggregation:                88052
    ARIN Deaggregation factor:                                     2.04
Prefixes being announced from the ARIN address blocks:           182431
    Unique aggregates announced from the ARIN address blocks:     85355
ARIN Region origin ASes present in the Internet Routing Table:    16593
    ARIN Prefixes per ASN:                                        10.99
ARIN Region origin ASes announcing only one prefix:                6083
ARIN Region transit ASes present in the Internet Routing Table:    1739
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:     559
Number of ARIN addresses announced to Internet:              1085308960
    Equivalent to 64 /8s, 176 /16s and 128 /24s
    Percentage of available ARIN address space announced:          57.4

ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  2138-2584, 2615-2772, 2823-2829, 2880-3153
                       3354-4607, 4865-5119, 5632-6655, 6912-7466
                       7723-8191, 10240-12287, 13312-15359, 16384-17407
                       18432-20479, 21504-23551, 25600-26591,
                       26624-27647, 29696-30719, 31744-33791
                       35840-36863, 39936-40959, 46080-47103
                       53248-55295, 62464-63487, 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:                    134316
    Total RIPE prefixes after maximum aggregation:                66801
    RIPE Deaggregation factor:                                     2.01
Prefixes being announced from the RIPE address blocks:           140927
    Unique aggregates announced from the RIPE address blocks:     87411
RIPE Region origin ASes present in the Internet Routing Table:    17973
    RIPE Prefixes per ASN:                                         7.84
RIPE Region origin ASes announcing only one prefix:                8088
RIPE Region transit ASes present in the Internet Routing Table:    2975
Average RIPE Region AS path length visible:                         4.9
    Max RIPE Region AS path length visible:                          35
Number of RIPE region 32-bit ASNs visible in the Routing Table:    3875
Number of RIPE addresses announced to Internet:               698628224
    Equivalent to 41 /8s, 164 /16s and 56 /24s
    Percentage of available RIPE address space announced:         101.6

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, 196608-204287
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:                   60334
    Total LACNIC prefixes after maximum aggregation:              11560
    LACNIC Deaggregation factor:                                   5.22
Prefixes being announced from the LACNIC address blocks:          71453
    Unique aggregates announced from the LACNIC address blocks:   33162
LACNIC Region origin ASes present in the Internet Routing Table:   2453
    LACNIC Prefixes per ASN:                                      29.13
LACNIC Region origin ASes announcing only one prefix:               614
LACNIC Region transit ASes present in the Internet Routing Table:   510
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        28
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1811
Number of LACNIC addresses announced to Internet:             168750400
    Equivalent to 10 /8s, 14 /16s and 237 /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:                  12197
    Total AfriNIC prefixes after maximum aggregation:              3058
    AfriNIC Deaggregation factor:                                  3.99
Prefixes being announced from the AfriNIC address blocks:         14079
    Unique aggregates announced from the AfriNIC address blocks:   5234
AfriNIC Region origin ASes present in the Internet Routing Table:   736
    AfriNIC Prefixes per ASN:                                     19.13
AfriNIC Region origin ASes announcing only one prefix:              195
AfriNIC Region transit ASes present in the Internet Routing Table:  163
Average AfriNIC Region AS path length visible:                      4.6
    Max AfriNIC Region AS path length visible:                       24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  135
Number of AfriNIC addresses announced to Internet:             65998592
    Equivalent to 3 /8s, 239 /16s and 15 /24s
    Percentage of available AfriNIC address space announced:       65.6

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      11305         941   Korea Telecom
17974     2699        904          78   PT Telekomunikasi Indonesia
 7545     2571        339         137   TPG Telecom Limited
 4755     2026        425         225   TATA Communications formerly 
 4538     1947       4190          71   China Education and Research 
 9829     1796       1356         151   National Internet Backbone
 9808     1584       8717          29   Guangdong Mobile Communicatio
 9583     1517        119         570   Sify Limited
 4808     1465       2245         470   CNCGROUP IP network China169 
 9498     1360        335         105   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     3174       2957         136   Cox Communications Inc.
 6389     2758       3688          51   BellSouth.net Inc.
 3356     2556      10702         512   Level 3 Communications, Inc.
18566     2068        381         203   MegaPath Corporation
20115     1868       1843         407   Charter Communications
 6983     1750        850         244   EarthLink, Inc.
 4323     1606       1022         414   tw telecom holdings, inc.
30036     1550        315         481   Mediacom Communications Corp
  701     1393      11371         677   MCI Communications Services, 
22561     1376        415         256   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     2196        306         367   TELLCOM ILETISIM HIZMETLERI A
20940     2053        807        1489   Akamai International B.V.
 6849     1209        355          21   JSC "Ukrtelecom"
 8551     1102        376          52   Bezeq International-Ltd
13188     1067         97          77   TOV "Bank-Inform"
31148     1058         46          26   Freenet Ltd.
 8402      973        544          15   OJSC "Vimpelcom"
12479      966        933          77   France Telecom Espana SA
 6830      918       2696         471   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     3292        532         249   Telmex Colombia S.A.
28573     2313       2171         111   NET Serviços de Comunicação S
 8151     1656       3275         451   Uninet S.A. de C.V.
 7303     1632       1008         238   Telecom Argentina S.A.
 6147     1445        374          30   Telefonica del Peru S.A.A.
 6503     1309        421          55   Axtel, S.A.B. de C.V.
26615     1100       2325          35   Tim Celular S.A.
 7738      999       1882          41   Telemar Norte Leste S.A.
 3816      950        430         163   COLOMBIA TELECOMUNICACIONES S
11830      892        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
24863      888        280          26   Link Egypt (Link.NET)
 8452      843        958          13   TE-AS
36903      512        258          99   Office National des Postes et
36992      442       1229          32   ETISALAT MISR
37492      312        175          71   Orange Tunisie
24835      307        146          12   Vodafone Data
 3741      250        857         208   Internet Solutions
29571      246         21          13   Cote d'Ivoire Telecom
36947      195        807          13   Telecom Algeria
37054      189         20           7   Data Telecom Service

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     3292        532         249   Telmex Colombia S.A.
22773     3174       2957         136   Cox Communications Inc.
 4766     2949      11305         941   Korea Telecom
 6389     2758       3688          51   BellSouth.net Inc.
17974     2699        904          78   PT Telekomunikasi Indonesia
 7545     2571        339         137   TPG Telecom Limited
 3356     2556      10702         512   Level 3 Communications, Inc.
39891     2472        128           6   SaudiNet, Saudi Telecom Compa
28573     2313       2171         111   NET Serviços de Comunicação S
34984     2196        306         367   TELLCOM ILETISIM HIZMETLERI A

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      3174        3038      Cox Communications Inc.
 6389      2758        2707      BellSouth.net Inc.
17974      2699        2621      PT Telekomunikasi Indonesia
39891      2472        2466      SaudiNet, Saudi Telecom Compa
 7545      2571        2434      TPG Telecom Limited
28573      2313        2202      NET Serviços de Comunicação S
 3356      2556        2044      Level 3 Communications, Inc.
 4766      2949        2008      Korea Telecom
 4538      1947        1876      China Education and Research 
18566      2068        1865      MegaPath Corporation

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

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS  Designation  Network              Transit AS  Description
30662   UNALLOCATED  8.2.129.0/24          3356       Level 3 Communicatio
53506   UNALLOCATED  8.17.102.0/23         2828       XO Communications
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
  560   UNALLOCATED  8.254.136.0/22        3356       Level 3 Communicatio
  560   UNALLOCATED  8.254.136.0/23        3356       Level 3 Communicatio

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

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

Prefix             Origin AS  Description
100.66.34.0/24       31148     Freenet Ltd.
100.66.35.0/24       31148     Freenet Ltd.
100.67.26.0/24       31148     Freenet Ltd.

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

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

Network            Origin AS  Description
5.100.241.0/24       23456     32bit Transition AS
23.226.112.0/20      62788     >>UNKNOWN<<
27.100.7.0/24        56096     >>UNKNOWN<<
31.217.248.0/21      44902     COVAGE NETWORKS SASU
41.73.1.0/24         37004     >>UNKNOWN<<
41.73.2.0/24         37004     >>UNKNOWN<<
41.73.3.0/24         37004     >>UNKNOWN<<
41.73.4.0/24         37004     >>UNKNOWN<<
41.73.5.0/24         37004     >>UNKNOWN<<
41.73.6.0/24         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       /9:13      /10:36      /11:95      /12:262     
/13:505     /14:1003    /15:1728    /16:12892   /17:7284    /18:12346   
/19:25559   /20:36012   /21:38728   /22:60605   /23:52840   /24:300118  
/25:1136    /26:1160    /27:707     /28:14      /29:14      /30:9       
/31:0       /32:18      

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

  ASN   No of nets  Total ann.   Description
39891     2432          2472      SaudiNet, Saudi Telecom Compa
22773     2374          3174      Cox Communications Inc.
18566     2010          2068      MegaPath Corporation
 6389     1629          2758      BellSouth.net Inc.
34984     1471          2196      TELLCOM ILETISIM HIZMETLERI A
 6983     1397          1750      EarthLink, Inc.
30036     1373          1550      Mediacom Communications Corp
10620     1177          3292      Telmex Colombia S.A.
11492     1111          1195      CABLE ONE, INC.
22561     1049          1376      CenturyTel Internet Holdings,

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

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

   1:1539      2:697       4:96        5:1888      6:25        8:1385   
  12:1835     13:14       14:1320     15:17       16:2        17:44     
  18:22       20:49       23:1254     24:1757     27:1997     31:1603   
  32:37       33:2        34:4        35:3        36:158      37:1973   
  38:1039     39:14       40:69       41:2735     42:296      43:1362   
  44:30       45:841      46:2312     47:50       49:920      50:780    
  52:12       54:82       55:4        56:6        57:42       58:1353   
  59:718      60:478      61:1756     62:1374     63:1901     64:4403   
  65:2252     66:4032     67:2055     68:1060     69:3246     70:1024   
  71:445      72:1959     74:2615     75:341      76:397      77:1281   
  78:1169     79:808      80:1358     81:1313     82:860      83:718    
  84:801      85:1331     86:442      87:1038     88:538      89:1929   
  90:145      91:5998     92:842      93:2278     94:2079     95:2203   
  96:438      97:348      98:1023     99:54      100:76      101:846    
 103:7846    104:1992    105:65      106:337     107:1033    108:629    
 109:2088    110:1145    111:1450    112:821     113:1110    114:843    
 115:1259    116:1417    117:1074    118:1876    119:1462    120:451    
 121:1141    122:2163    123:1835    124:1516    125:1624    128:619    
 129:395     130:413     131:1210    132:514     133:171     134:409    
 135:97      136:334     137:327     138:1010    139:149     140:237    
 141:505     142:661     143:508     144:553     145:124     146:796    
 147:582     148:1197    149:416     150:563     151:706     152:523    
 153:251     154:470     155:882     156:423     157:420     158:354    
 159:1021    160:407     161:657     162:2000    163:439     164:698    
 165:695     166:298     167:829     168:1255    169:185     170:1472   
 171:246     172:271     173:1533    174:719     175:696     176:1439   
 177:3917    178:2174    179:937     180:1940    181:1619    182:1841   
 183:626     184:757     185:3917    186:2867    187:1772    188:2072   
 189:1628    190:7640    191:1099    192:8546    193:5648    194:4226   
 195:3677    196:1968    197:1037    198:5548    199:5513    200:6604   
 201:3202    202:9536    203:9153    204:4697    205:2842    206:3059   
 207:2982    208:3992    209:3888    210:3594    211:1920    212:2539   
 213:2351    214:846     215:71      216:5749    217:1836    218:733    
 219:467     220:1489    221:817     222:471     223:815    

End of report



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