[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jul 10 18:12:55 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 11 Jul, 2015

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

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

BGP routing table entries examined:                              551197
    Prefixes after maximum aggregation (per Origin AS):          208852
    Deaggregation factor:                                          2.64
    Unique aggregates announced (without unneeded subnets):      268761
Total ASes present in the Internet Routing Table:                 50862
    Prefixes per ASN:                                             10.84
Origin-only ASes present in the Internet Routing Table:           36703
Origin ASes announcing only one prefix:                           16222
Transit ASes present in the Internet Routing Table:                6328
Transit-only ASes present in the Internet Routing Table:            170
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:              1315
    Unregistered ASNs in the Routing Table:                         430
Number of 32-bit ASNs allocated by the RIRs:                      10163
Number of 32-bit ASNs visible in the Routing Table:                7831
Prefixes from 32-bit ASNs in the Routing Table:                   28944
Number of bogon 32-bit ASNs visible in the Routing Table:            13
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            504
Number of addresses announced to Internet:                   2766799648
    Equivalent to 164 /8s, 234 /16s and 3 /24s
    Percentage of available address space announced:               74.7
    Percentage of allocated address space announced:               74.7
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               97.4
Total number of prefixes smaller than registry allocations:      184446

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

Prefixes being announced by APNIC Region ASes:                   136179
    Total APNIC prefixes after maximum aggregation:               39528
    APNIC Deaggregation factor:                                    3.45
Prefixes being announced from the APNIC address blocks:          143088
    Unique aggregates announced from the APNIC address blocks:    58021
APNIC Region origin ASes present in the Internet Routing Table:    5059
    APNIC Prefixes per ASN:                                       28.28
APNIC Region origin ASes announcing only one prefix:               1195
APNIC Region transit ASes present in the Internet Routing Table:    875
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:   1542
Number of APNIC addresses announced to Internet:              750827456
    Equivalent to 44 /8s, 192 /16s and 183 /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:                    179662
    Total ARIN prefixes after maximum aggregation:                88217
    ARIN Deaggregation factor:                                     2.04
Prefixes being announced from the ARIN address blocks:           182213
    Unique aggregates announced from the ARIN address blocks:     85011
ARIN Region origin ASes present in the Internet Routing Table:    16616
    ARIN Prefixes per ASN:                                        10.97
ARIN Region origin ASes announcing only one prefix:                6112
ARIN Region transit ASes present in the Internet Routing Table:    1743
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          23
Number of ARIN region 32-bit ASNs visible in the Routing Table:     534
Number of ARIN addresses announced to Internet:              1082901024
    Equivalent to 64 /8s, 139 /16s and 194 /24s
    Percentage of available ARIN address space announced:          57.3

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:                    133748
    Total RIPE prefixes after maximum aggregation:                66563
    RIPE Deaggregation factor:                                     2.01
Prefixes being announced from the RIPE address blocks:           140411
    Unique aggregates announced from the RIPE address blocks:     86940
RIPE Region origin ASes present in the Internet Routing Table:    17974
    RIPE Prefixes per ASN:                                         7.81
RIPE Region origin ASes announcing only one prefix:                8110
RIPE Region transit ASes present in the Internet Routing Table:    2968
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          35
Number of RIPE region 32-bit ASNs visible in the Routing Table:    3843
Number of RIPE addresses announced to Internet:               697952256
    Equivalent to 41 /8s, 153 /16s and 232 /24s
    Percentage of available RIPE address space announced:         101.5

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:                   60282
    Total LACNIC prefixes after maximum aggregation:              11422
    LACNIC Deaggregation factor:                                   5.28
Prefixes being announced from the LACNIC address blocks:          71030
    Unique aggregates announced from the LACNIC address blocks:   33156
LACNIC Region origin ASes present in the Internet Routing Table:   2445
    LACNIC Prefixes per ASN:                                      29.05
LACNIC Region origin ASes announcing only one prefix:               610
LACNIC Region transit ASes present in the Internet Routing Table:   509
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:  1782
Number of LACNIC addresses announced to Internet:             168556608
    Equivalent to 10 /8s, 11 /16s and 248 /24s
    Percentage of available LACNIC address space announced:       100.5

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:                  12121
    Total AfriNIC prefixes after maximum aggregation:              3073
    AfriNIC Deaggregation factor:                                  3.94
Prefixes being announced from the AfriNIC address blocks:         13951
    Unique aggregates announced from the AfriNIC address blocks:   5235
AfriNIC Region origin ASes present in the Internet Routing Table:   734
    AfriNIC Prefixes per ASN:                                     19.01
AfriNIC Region origin ASes announcing only one prefix:              195
AfriNIC Region transit ASes present in the Internet Routing Table:  162
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:  130
Number of AfriNIC addresses announced to Internet:             65769984
    Equivalent to 3 /8s, 235 /16s and 146 /24s
    Percentage of available AfriNIC address space announced:       65.3

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     2947      11304         938   Korea Telecom
17974     2699        904          78   PT Telekomunikasi Indonesia
 7545     2634        339         135   TPG Telecom Limited
 4538     2022       4190          71   China Education and Research 
 4755     2016        423         221   TATA Communications formerly 
 9829     1801       1361         143   National Internet Backbone
 9808     1557       8717          28   Guangdong Mobile Communicatio
 9583     1515        119         573   Sify Limited
 4808     1462       2241         470   CNCGROUP IP network China169 
 9498     1359        335         107   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     3179       2957         136   Cox Communications Inc.
 6389     2758       3688          51   BellSouth.net Inc.
 3356     2579      10702         511   Level 3 Communications, Inc.
18566     2059        380         198   MegaPath Corporation
20115     1866       1838         406   Charter Communications
 6983     1751        850         244   EarthLink, Inc.
 4323     1609       1022         412   tw telecom holdings, inc.
30036     1570        320         433   Mediacom Communications Corp
  701     1392      11371         676   MCI Communications Services, 
22561     1382        415         257   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     2206        305         366   TELLCOM ILETISIM HIZMETLERI A
20940     2030        796        1472   Akamai International B.V.
 6849     1209        355          21   JSC "Ukrtelecom"
 8551     1104        376          52   Bezeq International-Ltd
 8402     1052        544          15   OJSC "Vimpelcom"
31148     1051         46          24   Freenet Ltd.
13188     1041         97          75   TOV "Bank-Inform"
12479      958        933          77   France Telecom Espana SA
 6830      913       2694         469   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     3288        536         197   Telmex Colombia S.A.
28573     2279       2170         113   NET Serviços de Comunicação S
 8151     1698       3271         477   Uninet S.A. de C.V.
 7303     1631       1008         238   Telecom Argentina S.A.
 6147     1386        374          30   Telefonica del Peru S.A.A.
 6503     1268        421          55   Axtel, S.A.B. de C.V.
26615     1102       2325          35   Tim Celular S.A.
 7738      999       1882          41   Telemar Norte Leste S.A.
 3816      951        428         161   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      876        280          26   Link Egypt (Link.NET)
 8452      835        958          13   TE-AS
36903      512        258          99   Office National des Postes et
36992      439       1229          32   ETISALAT MISR
37492      312        175          71   Orange Tunisie
24835      307        146          12   Vodafone Data
 3741      250        857         208   Internet Solutions
29571      249         21          13   Cote d'Ivoire Telecom
36947      192        807          13   Telecom Algeria
15706      174         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     3288        536         197   Telmex Colombia S.A.
22773     3179       2957         136   Cox Communications Inc.
 4766     2947      11304         938   Korea Telecom
 6389     2758       3688          51   BellSouth.net Inc.
17974     2699        904          78   PT Telekomunikasi Indonesia
 7545     2634        339         135   TPG Telecom Limited
 3356     2579      10702         511   Level 3 Communications, Inc.
39891     2472        128           6   SaudiNet, Saudi Telecom Compa
28573     2279       2170         113   NET Serviços de Comunicação S
34984     2206        305         366   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      3179        3043      Cox Communications Inc.
 6389      2758        2707      BellSouth.net Inc.
17974      2699        2621      PT Telekomunikasi Indonesia
 7545      2634        2499      TPG Telecom Limited
39891      2472        2466      SaudiNet, Saudi Telecom Compa
28573      2279        2166      NET Serviços de Comunicação S
 3356      2579        2068      Level 3 Communications, Inc.
 4766      2947        2009      Korea Telecom
 4538      2022        1951      China Education and Research 
18566      2059        1861      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
33628   UNALLOCATED  12.0.239.0/24         1239       Sprint
32805   UNALLOCATED  12.1.225.0/24         7018       AT&T Services, Inc.

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

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

Network            Origin AS  Description
5.100.241.0/24       23456     32bit Transition AS
23.226.112.0/20      62788     >>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      /12:260     
/13:504     /14:1001    /15:1730    /16:12886   /17:7277    /18:12377   
/19:25606   /20:36004   /21:38758   /22:60453   /23:52463   /24:298703  
/25:1104    /26:1152    /27:709     /28:14      /29:12      /30:7       
/31:0       /32:17      

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

  ASN   No of nets  Total ann.   Description
39891     2432          2472      SaudiNet, Saudi Telecom Compa
22773     2382          3179      Cox Communications Inc.
18566     2005          2059      MegaPath Corporation
 6389     1629          2758      BellSouth.net Inc.
34984     1464          2206      TELLCOM ILETISIM HIZMETLERI A
 6983     1398          1751      EarthLink, Inc.
30036     1392          1570      Mediacom Communications Corp
10620     1158          3288      Telmex Colombia S.A.
11492     1114          1198      CABLE ONE, INC.
22561     1055          1382      CenturyTel Internet Holdings,

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

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

   1:1502      2:686       4:93        5:1875      6:25        8:1382   
  11:1        12:1820     13:14       14:1382     15:17       16:2      
  17:45       18:22       20:48       23:1252     24:1760     27:1972   
  31:1612     32:38       33:2        34:4        35:3        36:143    
  37:1961     38:1034     39:5        40:72       41:2717     42:295    
  43:1367     44:28       45:779      46:2300     47:45       49:889    
  50:787      52:12       54:79       55:3        56:6        57:42     
  58:1331     59:723      60:481      61:1752     62:1361     63:1901   
  64:4428     65:2259     66:4032     67:2054     68:1075     69:3253   
  70:1022     71:444      72:1966     74:2640     75:340      76:399    
  77:1274     78:1193     79:809      80:1354     81:1311     82:846    
  83:728      84:783      85:1381     86:437      87:1064     88:533    
  89:1899     90:144      91:6011     92:837      93:2243     94:2077   
  95:2209     96:434      97:348      98:1053     99:53      100:72     
 101:845     103:7784    104:1868    105:63      106:264     107:1006   
 108:628     109:2067    110:1146    111:1447    112:837     113:1103   
 114:840     115:1253    116:1409    117:1065    118:1869    119:1452   
 120:454     121:1084    122:2123    123:1844    124:1522    125:1624   
 128:653     129:391     130:410     131:1197    132:513     133:171    
 134:405     135:94      136:334     137:315     138:959     139:152    
 140:237     141:449     142:668     143:502     144:546     145:123    
 146:744     147:583     148:1215    149:416     150:555     151:652    
 152:520     153:249     154:464     155:877     156:436     157:419    
 158:353     159:1002    160:398     161:656     162:1957    163:437    
 164:692     165:698     166:307     167:833     168:1275    169:183    
 170:1467    171:245     172:284     173:1544    174:720     175:687    
 176:1445    177:3811    178:2165    179:945     180:1935    181:1576   
 182:1830    183:628     184:761     185:3837    186:2805    187:1760   
 188:2059    189:1614    190:7704    191:1024    192:8473    193:5633   
 194:4214    195:3697    196:1992    197:986     198:5529    199:5486   
 200:6598    201:3250    202:9536    203:9129    204:4712    205:2848   
 206:3037    207:2970    208:3985    209:3937    210:3592    211:1897   
 212:2580    213:2300    214:851     215:73      216:5746    217:1818   
 218:714     219:467     220:1453    221:792     222:461     223:789    


End of report


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