[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Oct 17 18:11:32 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 18 Oct, 2014

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

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

BGP routing table entries examined:                              514323
    Prefixes after maximum aggregation:                          199484
    Deaggregation factor:                                          2.58
    Unique aggregates announced to Internet:                     253096
Total ASes present in the Internet Routing Table:                 48320
    Prefixes per ASN:                                             10.64
Origin-only ASes present in the Internet Routing Table:           36273
Origin ASes announcing only one prefix:                           16350
Transit ASes present in the Internet Routing Table:                6150
Transit-only ASes present in the Internet Routing Table:            168
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:              1847
    Unregistered ASNs in the Routing Table:                         448
Number of 32-bit ASNs allocated by the RIRs:                       7652
Number of 32-bit ASNs visible in the Routing Table:                5897
Prefixes from 32-bit ASNs in the Routing Table:                   20879
Number of bogon 32-bit ASNs visible in the Routing Table:            12
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            344
Number of addresses announced to Internet:                   2711955588
    Equivalent to 161 /8s, 165 /16s and 40 /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:               96.9
Total number of prefixes smaller than registry allocations:      176391

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

Prefixes being announced by APNIC Region ASes:                   125598
    Total APNIC prefixes after maximum aggregation:               36783
    APNIC Deaggregation factor:                                    3.41
Prefixes being announced from the APNIC address blocks:          129541
    Unique aggregates announced from the APNIC address blocks:    53632
APNIC Region origin ASes present in the Internet Routing Table:    4976
    APNIC Prefixes per ASN:                                       26.03
APNIC Region origin ASes announcing only one prefix:               1187
APNIC Region transit ASes present in the Internet Routing Table:    854
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:   1133
Number of APNIC addresses announced to Internet:              735980480
    Equivalent to 43 /8s, 222 /16s and 43 /24s
    Percentage of available APNIC address space announced:         86.0

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:                    171583
    Total ARIN prefixes after maximum aggregation:                85311
    ARIN Deaggregation factor:                                     2.01
Prefixes being announced from the ARIN address blocks:           173348
    Unique aggregates announced from the ARIN address blocks:     81069
ARIN Region origin ASes present in the Internet Routing Table:    16381
    ARIN Prefixes per ASN:                                        10.58
ARIN Region origin ASes announcing only one prefix:                6108
ARIN Region transit ASes present in the Internet Routing Table:    1693
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:     225
Number of ARIN addresses announced to Internet:              1052731072
    Equivalent to 62 /8s, 191 /16s and 102 /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:                    125359
    Total RIPE prefixes after maximum aggregation:                63697
    RIPE Deaggregation factor:                                     1.97
Prefixes being announced from the RIPE address blocks:           130763
    Unique aggregates announced from the RIPE address blocks:     82810
RIPE Region origin ASes present in the Internet Routing Table:    17786
    RIPE Prefixes per ASN:                                         7.35
RIPE Region origin ASes announcing only one prefix:                8204
RIPE Region transit ASes present in the Internet Routing Table:    2907
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:    3128
Number of RIPE addresses announced to Internet:               692188036
    Equivalent to 41 /8s, 65 /16s and 243 /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:                   58702
    Total LACNIC prefixes after maximum aggregation:              10791
    LACNIC Deaggregation factor:                                   5.44
Prefixes being announced from the LACNIC address blocks:          67386
    Unique aggregates announced from the LACNIC address blocks:   30524
LACNIC Region origin ASes present in the Internet Routing Table:   2344
    LACNIC Prefixes per ASN:                                      28.75
LACNIC Region origin ASes announcing only one prefix:               638
LACNIC Region transit ASes present in the Internet Routing Table:   463
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:  1356
Number of LACNIC addresses announced to Internet:             171237504
    Equivalent to 10 /8s, 52 /16s and 224 /24s
    Percentage of available LACNIC address space announced:       102.1

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:                  12101
    Total AfriNIC prefixes after maximum aggregation:              2854
    AfriNIC Deaggregation factor:                                  4.24
Prefixes being announced from the AfriNIC address blocks:         12941
    Unique aggregates announced from the AfriNIC address blocks:   4757
AfriNIC Region origin ASes present in the Internet Routing Table:   735
    AfriNIC Prefixes per ASN:                                     17.61
AfriNIC Region origin ASes announcing only one prefix:              213
AfriNIC Region transit ASes present in the Internet Routing Table:  154
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:   55
Number of AfriNIC addresses announced to Internet:             59521792
    Equivalent to 3 /8s, 140 /16s and 59 /24s
    Percentage of available AfriNIC address space announced:       59.1

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     2946      11584         926   Korea Telecom
17974     2827        903          77   PT Telekomunikasi Indonesia
 7545     2398        336         124   TPG Telecom Limited
 4755     1917        412         189   TATA Communications formerly 
 9829     1652       1306          39   National Internet Backbone
 4808     1407       2204         419   CNCGROUP IP network China169 
 9808     1386       6639          15   Guangdong Mobile Communicatio
 9498     1307        333          91   BHARTI Airtel Ltd.
 9583     1306        104         529   Sify Limited
 7552     1198       1098          14   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     2903       2941         144   Cox Communications Inc.
 6389     2896       3688          51   BellSouth.net Inc.
18566     2046        379         182   MegaPath Corporation
 7029     1908       1958         316   Windstream Communications Inc
20115     1806       1788         480   Charter Communications
 4323     1636       1052         410   tw telecom holdings, inc.
 6983     1527        867         252   ITC^Deltacom
30036     1481        308         618   Mediacom Communications Corp
  701     1430      11266         714   MCI Communications Services, 
22561     1305        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     1826        297         349   TELLCOM ILETISIM HIZMETLERI A
20940     1500        583        1105   Akamai International B.V.
 8402     1421        544          15   OJSC "Vimpelcom"
31148     1044         45          21   Freenet Ltd.
13188     1037        100          29   TOV "Bank-Inform"
 8551      965        372          41   Bezeq International-Ltd
 6849      835        356          26   JSC "Ukrtelecom"
 6830      781       2338         434   Liberty Global Operations B.V
12479      750        784          96   France Telecom Espana SA
 9198      667        346          29   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     2994        485         254   Telmex Colombia S.A.
28573     2899       2315         110   NET Serviços de Comunicação S
 6147     1794        374          30   Telefonica del Peru S.A.A.
 7303     1756       1162         239   Telecom Argentina S.A.
 8151     1476       3008         434   Uninet S.A. de C.V.
 6503     1109        434          61   Axtel, S.A.B. de C.V.
 7738      999       1882          41   Telemar Norte Leste S.A.
26615      914       2325          35   Tim Celular S.A.
27947      911        130          51   Telconet S.A
 3816      888        383         154   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     1377        958          13   TE-AS
24863      949        280          26   Link Egypt (Link.NET)
 6713      678        760          38   Office National des Postes et
36992      351        824          28   ETISALAT MISR
24835      307        144           9   Vodafone Data
 3741      249        920         212   Internet Solutions
29571      245         22          17   Cote d'Ivoire Telecom
37054      230         19           6   Data Telecom Service
15706      186         17           6   Sudatel (Sudan Telecom Co. Lt
37457      175        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     2994        485         254   Telmex Colombia S.A.
 4766     2946      11584         926   Korea Telecom
22773     2903       2941         144   Cox Communications Inc.
28573     2899       2315         110   NET Serviços de Comunicação S
 6389     2896       3688          51   BellSouth.net Inc.
17974     2827        903          77   PT Telekomunikasi Indonesia
 7545     2398        336         124   TPG Telecom Limited
18566     2046        379         182   MegaPath Corporation
 4755     1917        412         189   TATA Communications formerly 
 7029     1908       1958         316   Windstream Communications Inc

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.
28573      2899        2789      NET Serviços de Comunicação S
22773      2903        2759      Cox Communications Inc.
17974      2827        2750      PT Telekomunikasi Indonesia
 7545      2398        2274      TPG Telecom Limited
 4766      2946        2020      Korea Telecom
18566      2046        1864      MegaPath Corporation
 6147      1794        1764      Telefonica del Peru S.A.A.
 4755      1917        1728      TATA Communications formerly 
 9829      1652        1613      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     
/13:502     /14:1005    /15:1712    /16:13039   /17:7121    /18:11854   
/19:24635   /20:35174   /21:37275   /22:54800   /23:48069   /24:275809  
/25:1093    /26:1062    /27:705     /28:14      /29:19      /30:10      
/31:1       /32:13      

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

  ASN   No of nets  Total ann.   Description
22773     2134          2903      Cox Communications Inc.
18566     2001          2046      MegaPath Corporation
 6389     1676          2896      BellSouth.net Inc.
 6147     1358          1794      Telefonica del Peru S.A.A.
30036     1328          1481      Mediacom Communications Corp
 6983     1217          1527      ITC^Deltacom
34984     1146          1826      TELLCOM ILETISIM HIZMETLERI A
 7029     1144          1908      Windstream Communications Inc
11492     1124          1175      CABLE ONE, INC.
 8402     1089          1421      OJSC "Vimpelcom"

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

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

   1:1352      2:678       3:3         4:17        5:1177      6:21     
   8:759      12:1850     13:4        14:1149     15:17       16:2      
  17:42       18:21       20:51       23:947      24:1769     27:1820   
  31:1322     32:40       33:2        34:5        36:160      37:1804   
  38:1005     39:20       40:227      41:2988     42:254      43:524    
  44:18       45:80       46:2071     47:27       49:734      50:799    
  52:12       54:51       55:3        56:10       57:32       58:1138   
  59:645      60:435      61:1729     62:1264     63:1829     64:4390   
  65:2274     66:4208     67:2036     68:1083     69:3262     70:873    
  71:477      72:1983     74:2612     75:375      76:412      77:1608   
  78:1017     79:765      80:1329     81:1261     82:792      83:657    
  84:727      85:1353     86:438      87:1152     88:497      89:1806   
  90:138      91:5794     92:775      93:1671     94:2033     95:1290   
  96:430      97:340      98:1100     99:48      100:65      101:731    
 103:5877    104:472     105:150     106:187     107:648     108:580    
 109:2000    110:1044    111:1381    112:720     113:901     114:806    
 115:1169    116:1145    117:1024    118:1537    119:1368    120:440    
 121:963     122:2200    123:1661    124:1446    125:1491    128:631    
 129:356     130:372     131:921     132:431     133:165     134:323    
 135:80      136:322     137:316     138:379     139:199     140:222    
 141:408     142:599     143:439     144:512     145:111     146:677    
 147:559     148:998     149:389     150:495     151:590     152:477    
 153:240     154:401     155:568     156:375     157:331     158:279    
 159:947     160:327     161:604     162:1805    163:403     164:646    
 165:669     166:365     167:680     168:1126    169:123     170:1414   
 171:188     172:60      173:1635    174:710     175:607     176:1521   
 177:3618    178:2096    179:798     180:1762    181:1766    182:1664   
 183:572     184:706     185:2203    186:2995    187:1647    188:2008   
 189:1486    190:7908    191:777     192:7704    193:5553    194:4061   
 195:3611    196:1635    197:758     198:5278    199:5466    200:6472   
 201:2901    202:9138    203:9077    204:4700    205:2655    206:3089   
 207:2968    208:3922    209:3762    210:3298    211:1827    212:2377   
 213:2168    214:861     215:85      216:5606    217:1713    218:614    
 219:391     220:1374    221:744     222:481     223:600    

End of report


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