[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Oct 31 18:11:12 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 01 Nov, 2014

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

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

BGP routing table entries examined:                              518662
    Prefixes after maximum aggregation:                          199550
    Deaggregation factor:                                          2.60
    Unique aggregates announced to Internet:                     253190
Total ASes present in the Internet Routing Table:                 48444
    Prefixes per ASN:                                             10.71
Origin-only ASes present in the Internet Routing Table:           36294
Origin ASes announcing only one prefix:                           16343
Transit ASes present in the Internet Routing Table:                6178
Transit-only ASes present in the Internet Routing Table:            169
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      93
    Max AS path prepend of ASN ( 55644)                              86
Prefixes from unregistered ASNs in the Routing Table:              1809
    Unregistered ASNs in the Routing Table:                         435
Number of 32-bit ASNs allocated by the RIRs:                       7781
Number of 32-bit ASNs visible in the Routing Table:                5972
Prefixes from 32-bit ASNs in the Routing Table:                   21275
Number of bogon 32-bit ASNs visible in the Routing Table:            16
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            351
Number of addresses announced to Internet:                   2713052580
    Equivalent to 161 /8s, 181 /16s and 229 /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:      176879

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

Prefixes being announced by APNIC Region ASes:                   128935
    Total APNIC prefixes after maximum aggregation:               36851
    APNIC Deaggregation factor:                                    3.50
Prefixes being announced from the APNIC address blocks:          133024
    Unique aggregates announced from the APNIC address blocks:    53376
APNIC Region origin ASes present in the Internet Routing Table:    4988
    APNIC Prefixes per ASN:                                       26.67
APNIC Region origin ASes announcing only one prefix:               1199
APNIC Region transit ASes present in the Internet Routing Table:    862
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         93
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1153
Number of APNIC addresses announced to Internet:              736685408
    Equivalent to 43 /8s, 232 /16s and 237 /24s
    Percentage of available APNIC address space announced:         86.1

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

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

Prefixes being announced by ARIN Region ASes:                    171887
    Total ARIN prefixes after maximum aggregation:                85320
    ARIN Deaggregation factor:                                     2.01
Prefixes being announced from the ARIN address blocks:           173718
    Unique aggregates announced from the ARIN address blocks:     81425
ARIN Region origin ASes present in the Internet Routing Table:    16390
    ARIN Prefixes per ASN:                                        10.60
ARIN Region origin ASes announcing only one prefix:                6093
ARIN Region transit ASes present in the Internet Routing Table:    1696
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:     246
Number of ARIN addresses announced to Internet:              1053210304
    Equivalent to 62 /8s, 198 /16s and 182 /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:                    125642
    Total RIPE prefixes after maximum aggregation:                63681
    RIPE Deaggregation factor:                                     1.97
Prefixes being announced from the RIPE address blocks:           131109
    Unique aggregates announced from the RIPE address blocks:     82697
RIPE Region origin ASes present in the Internet Routing Table:    17797
    RIPE Prefixes per ASN:                                         7.37
RIPE Region origin ASes announcing only one prefix:                8186
RIPE Region transit ASes present in the Internet Routing Table:    2910
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          39
Number of RIPE region 32-bit ASNs visible in the Routing Table:    3155
Number of RIPE addresses announced to Internet:               691574916
    Equivalent to 41 /8s, 56 /16s and 152 /24s
    Percentage of available RIPE address space announced:         100.5

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, 196608-202239
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:                   58688
    Total LACNIC prefixes after maximum aggregation:              10780
    LACNIC Deaggregation factor:                                   5.44
Prefixes being announced from the LACNIC address blocks:          67517
    Unique aggregates announced from the LACNIC address blocks:   30600
LACNIC Region origin ASes present in the Internet Routing Table:   2365
    LACNIC Prefixes per ASN:                                      28.55
LACNIC Region origin ASes announcing only one prefix:               654
LACNIC Region transit ASes present in the Internet Routing Table:   470
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        26
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1359
Number of LACNIC addresses announced to Internet:             168363520
    Equivalent to 10 /8s, 9 /16s and 6 /24s
    Percentage of available LACNIC address space announced:       100.4

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:                  12122
    Total AfriNIC prefixes after maximum aggregation:              2874
    AfriNIC Deaggregation factor:                                  4.22
Prefixes being announced from the AfriNIC address blocks:         12943
    Unique aggregates announced from the AfriNIC address blocks:   4774
AfriNIC Region origin ASes present in the Internet Routing Table:   733
    AfriNIC Prefixes per ASN:                                     17.66
AfriNIC Region origin ASes announcing only one prefix:              211
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:   59
Number of AfriNIC addresses announced to Internet:             59790848
    Equivalent to 3 /8s, 144 /16s and 86 /24s
    Percentage of available AfriNIC address space announced:       59.4

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     2950      11584         926   Korea Telecom
17974     2824        903          77   PT Telekomunikasi Indonesia
 7545     2431        336         124   TPG Telecom Limited
 4755     1922        412         189   TATA Communications formerly 
 9829     1671       1322          37   National Internet Backbone
 4812     1520       2098         109   China Telecom (Group)
 9808     1475       6639          15   Guangdong Mobile Communicatio
 4808     1424       2211         423   CNCGROUP IP network China169 
 9583     1360        111         559   Sify Limited
 9498     1312        333          94   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
 6389     2894       3688          51   BellSouth.net Inc.
22773     2844       2940         143   Cox Communications Inc.
18566     2045        379         184   MegaPath Corporation
 7029     1975       1959         313   Windstream Communications Inc
20115     1815       1794         477   Charter Communications
 4323     1633       1052         408   tw telecom holdings, inc.
 6983     1542        867         250   ITC^Deltacom
30036     1487        309         611   Mediacom Communications Corp
  701     1426      11266         710   MCI Communications Services, 
22561     1321        409         247   CenturyTel Internet Holdings,

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

RIPE Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
34984     1840        297         352   TELLCOM ILETISIM HIZMETLERI A
20940     1502        581        1108   Akamai International B.V.
 8402     1387        544          15   OJSC "Vimpelcom"
31148     1045         45          21   Freenet Ltd.
13188     1037        100          29   TOV "Bank-Inform"
 8551      956        373          43   Bezeq International-Ltd
 6849      829        356          26   JSC "Ukrtelecom"
 6830      782       2339         435   Liberty Global Operations B.V
 9198      776        346          30   JSC Kazakhtelecom
12479      757        785          96   France Telecom Espana SA

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     3035        494         238   Telmex Colombia S.A.
28573     2580       2317         107   NET Serviços de Comunicação S
 6147     1779        374          30   Telefonica del Peru S.A.A.
 7303     1765       1171         241   Telecom Argentina S.A.
 8151     1481       3017         432   Uninet S.A. de C.V.
 6503     1158        434          59   Axtel, S.A.B. de C.V.
 7738      999       1882          41   Telemar Norte Leste S.A.
27947      915        130          51   Telconet S.A
26615      899       2325          35   Tim Celular S.A.
 3816      893        384         146   COLOMBIA TELECOMUNICACIONES S

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

AfriNIC Region per AS prefix count summary
------------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8452     1390        958          13   TE-AS
24863      957        280          26   Link Egypt (Link.NET)
 6713      678        760          38   Office National des Postes et
36992      328        824          29   ETISALAT MISR
24835      308        144           9   Vodafone Data
 3741      249        920         212   Internet Solutions
29571      245         22          17   Cote d'Ivoire Telecom
37054      232         19           6   Data Telecom Service
37457      182        161           6   Telkom SA Ltd.
36947      177        807          13   Telecom Algeria

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     3035        494         238   Telmex Colombia S.A.
 4766     2950      11584         926   Korea Telecom
 6389     2894       3688          51   BellSouth.net Inc.
22773     2844       2940         143   Cox Communications Inc.
17974     2824        903          77   PT Telekomunikasi Indonesia
28573     2580       2317         107   NET Serviços de Comunicação S
 7545     2431        336         124   TPG Telecom Limited
18566     2045        379         184   MegaPath Corporation
 7029     1975       1959         313   Windstream Communications Inc
 4755     1922        412         189   TATA Communications formerly 

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

Global Per AS Maximum Aggr summary
----------------------------------

  ASN   No of nets  Net Savings Description
 6389      2894        2843      BellSouth.net Inc.
17974      2824        2747      PT Telekomunikasi Indonesia
22773      2844        2701      Cox Communications Inc.
28573      2580        2473      NET Serviços de Comunicação S
 7545      2431        2307      TPG Telecom Limited
 4766      2950        2024      Korea Telecom
18566      2045        1861      MegaPath Corporation
 6147      1779        1749      Telefonica del Peru S.A.A.
 4755      1922        1733      TATA Communications formerly 
 7029      1975        1662      Windstream Communications Inc

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     
/13:501     /14:1011    /15:1715    /16:13046   /17:7209    /18:11942   
/19:25102   /20:35370   /21:37390   /22:55368   /23:48597   /24:278052  
/25:1107    /26:1065    /27:717     /28:15      /29:19      /30:11      
/31:1       /32:13      

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

  ASN   No of nets  Total ann.   Description
22773     2065          2844      Cox Communications Inc.
18566     2000          2045      MegaPath Corporation
 6389     1674          2894      BellSouth.net Inc.
 6147     1345          1779      Telefonica del Peru S.A.A.
30036     1334          1487      Mediacom Communications Corp
 6983     1228          1542      ITC^Deltacom
 7029     1195          1975      Windstream Communications Inc
34984     1160          1840      TELLCOM ILETISIM HIZMETLERI A
11492     1135          1185      CABLE ONE, INC.
 8402     1072          1387      OJSC "Vimpelcom"

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

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

   1:1342      2:679       3:3         4:17        5:1185      6:21     
   8:772      12:1848     13:5        14:1181     15:17       16:2      
  17:42       18:21       20:50       23:949      24:1765     27:1811   
  31:1339     32:41       33:2        34:5        36:156      37:1814   
  38:1008     39:14       40:234      41:2957     42:339      43:580    
  44:20       45:81       46:2066     47:28       49:746      50:807    
  52:12       54:57       55:4        56:8        57:32       58:1143   
  59:643      60:435      61:1755     62:1250     63:1837     64:4413   
  65:2277     66:4182     67:2040     68:1093     69:3270     70:875    
  71:486      72:1985     74:2613     75:373      76:409      77:1613   
  78:980      79:765      80:1327     81:1285     82:800      83:658    
  84:716      85:1359     86:429      87:1188     88:503      89:1808   
  90:138      91:5809     92:798      93:1642     94:1940     95:1291   
  96:426      97:340      98:1097     99:48      100:67      101:743    
 103:5989    104:498     105:155     106:181     107:653     108:596    
 109:1982    110:1049    111:1421    112:729     113:913     114:795    
 115:1225    116:1183    117:1013    118:1547    119:1384    120:746    
 121:970     122:2209    123:1692    124:1474    125:1534    128:622    
 129:387     130:369     131:925     132:413     133:165     134:323    
 135:82      136:324     137:318     138:383     139:201     140:228    
 141:420     142:601     143:444     144:514     145:111     146:672    
 147:560     148:1045    149:409     150:512     151:640     152:475    
 153:241     154:402     155:621     156:382     157:322     158:278    
 159:923     160:330     161:603     162:1810    163:368     164:644    
 165:671     166:363     167:690     168:1127    169:119     170:1427   
 171:191     172:60      173:1640    174:710     175:611     176:1539   
 177:3700    178:2090    179:804     180:1799    181:1792    182:1689   
 183:702     184:709     185:2283    186:2972    187:1689    188:2040   
 189:1531    190:7920    191:765     192:7742    193:5556    194:4062   
 195:3620    196:1641    197:776     198:5303    199:5474    200:6492   
 201:2915    202:9162    203:9043    204:4694    205:2668    206:3102   
 207:2983    208:3921    209:3764    210:3328    211:1852    212:2434   
 213:2188    214:850     215:84      216:5619    217:1701    218:673    
 219:390     220:1379    221:825     222:568     223:696    

End of report


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