[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Oct 3 18:12:05 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 04 Oct, 2014

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

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

BGP routing table entries examined:                              513366
    Prefixes after maximum aggregation:                          199005
    Deaggregation factor:                                          2.58
    Unique aggregates announced to Internet:                     252719
Total ASes present in the Internet Routing Table:                 48192
    Prefixes per ASN:                                             10.65
Origin-only ASes present in the Internet Routing Table:           36237
Origin ASes announcing only one prefix:                           16367
Transit ASes present in the Internet Routing Table:                6144
Transit-only ASes present in the Internet Routing Table:            171
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                     118
    Max AS path prepend of ASN ( 55644)                             111
Prefixes from unregistered ASNs in the Routing Table:              1796
    Unregistered ASNs in the Routing Table:                         436
Number of 32-bit ASNs allocated by the RIRs:                       7552
Number of 32-bit ASNs visible in the Routing Table:                5811
Prefixes from 32-bit ASNs in the Routing Table:                   20513
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:            345
Number of addresses announced to Internet:                   2709985028
    Equivalent to 161 /8s, 135 /16s and 23 /24s
    Percentage of available address space announced:               73.2
    Percentage of allocated address space announced:               73.2
    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:      176366

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

Prefixes being announced by APNIC Region ASes:                   124949
    Total APNIC prefixes after maximum aggregation:               36672
    APNIC Deaggregation factor:                                    3.41
Prefixes being announced from the APNIC address blocks:          128774
    Unique aggregates announced from the APNIC address blocks:    53389
APNIC Region origin ASes present in the Internet Routing Table:    4979
    APNIC Prefixes per ASN:                                       25.86
APNIC Region origin ASes announcing only one prefix:               1189
APNIC Region transit ASes present in the Internet Routing Table:    856
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:   1115
Number of APNIC addresses announced to Internet:              734732608
    Equivalent to 43 /8s, 203 /16s and 33 /24s
    Percentage of available APNIC address space announced:         85.9

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

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

Prefixes being announced by ARIN Region ASes:                    170714
    Total ARIN prefixes after maximum aggregation:                85222
    ARIN Deaggregation factor:                                     2.00
Prefixes being announced from the ARIN address blocks:           172625
    Unique aggregates announced from the ARIN address blocks:     80799
ARIN Region origin ASes present in the Internet Routing Table:    16372
    ARIN Prefixes per ASN:                                        10.54
ARIN Region origin ASes announcing only one prefix:                6108
ARIN Region transit ASes present in the Internet Routing Table:    1697
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:     215
Number of ARIN addresses announced to Internet:              1085100736
    Equivalent to 64 /8s, 173 /16s and 82 /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, 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:                    125205
    Total RIPE prefixes after maximum aggregation:                63502
    RIPE Deaggregation factor:                                     1.97
Prefixes being announced from the RIPE address blocks:           130400
    Unique aggregates announced from the RIPE address blocks:     82997
RIPE Region origin ASes present in the Internet Routing Table:    17747
    RIPE Prefixes per ASN:                                         7.35
RIPE Region origin ASes announcing only one prefix:                8210
RIPE Region transit ASes present in the Internet Routing Table:    2904
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:    3091
Number of RIPE addresses announced to Internet:               659138692
    Equivalent to 39 /8s, 73 /16s and 168 /24s
    Percentage of available RIPE address space announced:          95.8

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:                   59835
    Total LACNIC prefixes after maximum aggregation:              10728
    LACNIC Deaggregation factor:                                   5.58
Prefixes being announced from the LACNIC address blocks:          68362
    Unique aggregates announced from the LACNIC address blocks:   30503
LACNIC Region origin ASes present in the Internet Routing Table:   2342
    LACNIC Prefixes per ASN:                                      29.19
LACNIC Region origin ASes announcing only one prefix:               648
LACNIC Region transit ASes present in the Internet Routing Table:   458
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        23
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1335
Number of LACNIC addresses announced to Internet:             171129216
    Equivalent to 10 /8s, 51 /16s and 57 /24s
    Percentage of available LACNIC address space announced:       102.0

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:                  12042
    Total AfriNIC prefixes after maximum aggregation:              2835
    AfriNIC Deaggregation factor:                                  4.25
Prefixes being announced from the AfriNIC address blocks:         12860
    Unique aggregates announced from the AfriNIC address blocks:   4717
AfriNIC Region origin ASes present in the Internet Routing Table:   739
    AfriNIC Prefixes per ASN:                                     17.40
AfriNIC Region origin ASes announcing only one prefix:              212
AfriNIC Region transit ASes present in the Internet Routing Table:  154
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   55
Number of AfriNIC addresses announced to Internet:             59530240
    Equivalent to 3 /8s, 140 /16s and 92 /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     2944      11584         926   Korea Telecom
17974     2815        900          74   PT Telekomunikasi Indonesia
 7545     2362        336         122   TPG Telecom Limited
 4755     1914        413         192   TATA Communications formerly 
 9829     1641       1306          39   National Internet Backbone
 4808     1414       2198         417   CNCGROUP IP network China169 
 9583     1320        105         541   Sify Limited
 9498     1304        333          91   BHARTI Airtel Ltd.
 9808     1292       6639          15   Guangdong Mobile Communicatio
 7552     1232       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
 6389     2896       3688          51   BellSouth.net Inc.
22773     2891       2940         141   Cox Communications Inc.
18566     2045        379         181   MegaPath Corporation
 7029     1932       1975         329   Windstream Communications Inc
20115     1803       1785         479   Charter Communications
 4323     1634       1052         410   tw telecom holdings, inc.
 6983     1492        867         249   ITC^Deltacom
30036     1477        309         626   Mediacom Communications Corp
  701     1432      11258         716   MCI Communications Services, 
22561     1307        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     1822        296         348   TELLCOM ILETISIM HIZMETLERI A
20940     1493        580        1099   Akamai International B.V.
 8402     1359        544          15   OJSC "Vimpelcom"
31148     1045         45          21   Freenet Ltd.
13188     1034        100          36   TOV "Bank-Inform"
 8551      963        372          41   Bezeq International-Ltd
 6849      834        356          26   JSC "Ukrtelecom"
12479      805        798          58   France Telecom Espana SA
 6830      777       2334         432   Liberty Global Operations B.V
 9198      668        346          28   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
28573     3026       2311         114   NET Serviços de Comunicação S
10620     2990        484         249   Telmex Colombia S.A.
18881     1903       1036          22   Global Village Telecom
 6147     1772        374          30   Telefonica del Peru S.A.A.
 7303     1764       1175         250   Telecom Argentina S.A.
 8151     1476       2999         434   Uninet S.A. de C.V.
 6503     1109        434          59   Axtel, S.A.B. de C.V.
 7738      999       1882          41   Telemar Norte Leste S.A.
27947      911        130          51   Telconet S.A
26615      902       2325          35   Tim Celular S.A.

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     1300        958          13   TE-AS
24863      950        280          26   Link Egypt (Link.NET)
 6713      678        760          38   Office National des Postes et
36992      347        824          27   ETISALAT MISR
24835      307        144           9   Vodafone Data
 3741      249        920         212   Internet Solutions
29571      245         22          17   Cote d'Ivoire Telecom
37054      234         19           6   Data Telecom Service
15706      186         17           6   Sudatel (Sudan Telecom Co. Lt
12258      174         26          71   MWEB CONNECT (PROPRIETARY) LI

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
28573     3026       2311         114   NET Serviços de Comunicação S
10620     2990        484         249   Telmex Colombia S.A.
 4766     2944      11584         926   Korea Telecom
 6389     2896       3688          51   BellSouth.net Inc.
22773     2891       2940         141   Cox Communications Inc.
17974     2815        900          74   PT Telekomunikasi Indonesia
 7545     2362        336         122   TPG Telecom Limited
18566     2045        379         181   MegaPath Corporation
 7029     1932       1975         329   Windstream Communications Inc
 4755     1914        413         192   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      2896        2845      BellSouth.net Inc.
22773      2891        2750      Cox Communications Inc.
10620      2990        2741      Telmex Colombia S.A.
17974      2815        2741      PT Telekomunikasi Indonesia
 7545      2362        2240      TPG Telecom Limited
 4766      2944        2018      Korea Telecom
18881      1903        1881      Global Village Telecom
18566      2045        1864      MegaPath Corporation
 6147      1772        1742      Telefonica del Peru S.A.A.
 4755      1914        1722      TATA Communications formerly 

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     
/13:504     /14:1003    /15:1714    /16:13037   /17:7095    /18:11802   
/19:24588   /20:35312   /21:37686   /22:54782   /23:48002   /24:274515  
/25:1091    /26:1056    /27:709     /28:16      /29:19      /30:10      
/31:1       /32:13      

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

  ASN   No of nets  Total ann.   Description
22773     2124          2891      Cox Communications Inc.
18566     2000          2045      MegaPath Corporation
 6389     1676          2896      BellSouth.net Inc.
 6147     1337          1772      Telefonica del Peru S.A.A.
30036     1322          1477      Mediacom Communications Corp
 6983     1185          1492      ITC^Deltacom
34984     1142          1822      TELLCOM ILETISIM HIZMETLERI A
 7029     1138          1932      Windstream Communications Inc
11492     1125          1174      CABLE ONE, INC.
10620     1055          2990      Telmex Colombia S.A.

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

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

   1:1348      2:663       3:3         4:17        5:1153      6:21     
   8:760      12:1848     13:4        14:1124     15:17       16:2      
  17:42       18:21       20:51       23:928      24:1751     27:1787   
  31:1407     32:41       33:2        34:5        36:157      37:1779   
  38:998      39:12       40:227      41:2979     42:271      43:423    
  44:17       45:76       46:2168     47:26       49:734      50:796    
  52:12       54:52       55:5        56:6        57:32       58:1211   
  59:640      60:432      61:1719     62:1272     63:1831     64:4404   
  65:2292     66:4192     67:2057     68:1047     69:3278     70:864    
  71:475      72:1977     74:2592     75:372      76:413      77:1608   
  78:925      79:764      80:1325     81:1249     82:793      83:757    
  84:730      85:1324     86:452      87:1157     88:475      89:1790   
  90:138      91:5759     92:758      93:1666     94:2086     95:1304   
  96:426      97:341      98:1100     99:48      100:66      101:727    
 103:5755    104:339     105:138     106:188     107:645     108:575    
 109:1987    110:1043    111:1379    112:714     113:900     114:782    
 115:1213    116:1129    117:991     118:1564    119:1364    120:436    
 121:973     122:2193    123:1636    124:1442    125:1509    128:612    
 129:348     130:362     131:872     132:430     133:165     134:325    
 135:78      136:306     137:292     138:379     139:195     140:223    
 141:405     142:596     143:420     144:498     145:111     146:685    
 147:554     148:968     149:379     150:498     151:710     152:471    
 153:240     154:356     155:561     156:376     157:332     158:277    
 159:940     160:325     161:604     162:1790    163:402     164:702    
 165:662     166:362     167:682     168:1119    169:119     170:1412   
 171:189     172:60      173:1622    174:704     175:615     176:1519   
 177:3568    178:2087    179:805     180:1765    181:1746    182:1647   
 183:558     184:717     185:2129    186:3006    187:1704    188:2155   
 189:1510    190:7890    191:769     192:7585    193:5522    194:4051   
 195:3586    196:1622    197:748     198:5152    199:5465    200:6466   
 201:2895    202:9120    203:9043    204:4577    205:2650    206:2975   
 207:2951    208:3921    209:3728    210:3293    211:1825    212:2363   
 213:2149    214:856     215:88      216:5616    217:1705    218:618    
 219:394     220:1371    221:692     222:483     223:601    

End of report


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