[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Dec 26 18:11:43 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,
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 27 Dec, 2014

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

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

BGP routing table entries examined:                              524268
    Prefixes after maximum aggregation:                          201685
    Deaggregation factor:                                          2.60
    Unique aggregates announced to Internet:                     256512
Total ASes present in the Internet Routing Table:                 48941
    Prefixes per ASN:                                             10.71
Origin-only ASes present in the Internet Routing Table:           36363
Origin ASes announcing only one prefix:                           16284
Transit ASes present in the Internet Routing Table:                6207
Transit-only ASes present in the Internet Routing Table:            166
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                     100
    Max AS path prepend of ASN ( 55644)                              93
Prefixes from unregistered ASNs in the Routing Table:              1667
    Unregistered ASNs in the Routing Table:                         424
Number of 32-bit ASNs allocated by the RIRs:                       8281
Number of 32-bit ASNs visible in the Routing Table:                6371
Prefixes from 32-bit ASNs in the Routing Table:                   22956
Number of bogon 32-bit ASNs visible in the Routing Table:             6
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            375
Number of addresses announced to Internet:                   2718222148
    Equivalent to 162 /8s, 4 /16s and 199 /24s
    Percentage of available address space announced:               73.4
    Percentage of allocated address space announced:               73.4
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               97.0
Total number of prefixes smaller than registry allocations:      177212

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

Prefixes being announced by APNIC Region ASes:                   129011
    Total APNIC prefixes after maximum aggregation:               37668
    APNIC Deaggregation factor:                                    3.42
Prefixes being announced from the APNIC address blocks:          133863
    Unique aggregates announced from the APNIC address blocks:    54835
APNIC Region origin ASes present in the Internet Routing Table:    5007
    APNIC Prefixes per ASN:                                       26.74
APNIC Region origin ASes announcing only one prefix:               1211
APNIC Region transit ASes present in the Internet Routing Table:    864
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                        100
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1229
Number of APNIC addresses announced to Internet:              740474432
    Equivalent to 44 /8s, 34 /16s and 190 /24s
    Percentage of available APNIC address space announced:         86.5

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:                    174104
    Total ARIN prefixes after maximum aggregation:                86239
    ARIN Deaggregation factor:                                     2.02
Prefixes being announced from the ARIN address blocks:           175987
    Unique aggregates announced from the ARIN address blocks:     82335
ARIN Region origin ASes present in the Internet Routing Table:    16407
    ARIN Prefixes per ASN:                                        10.73
ARIN Region origin ASes announcing only one prefix:                6062
ARIN Region transit ASes present in the Internet Routing Table:    1712
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          20
Number of ARIN region 32-bit ASNs visible in the Routing Table:     304
Number of ARIN addresses announced to Internet:              1055216640
    Equivalent to 62 /8s, 229 /16s and 84 /24s
    Percentage of available ARIN address space announced:          55.8

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:                    126324
    Total RIPE prefixes after maximum aggregation:                63838
    RIPE Deaggregation factor:                                     1.98
Prefixes being announced from the RIPE address blocks:           132358
    Unique aggregates announced from the RIPE address blocks:     82961
RIPE Region origin ASes present in the Internet Routing Table:    17833
    RIPE Prefixes per ASN:                                         7.42
RIPE Region origin ASes announcing only one prefix:                8168
RIPE Region transit ASes present in the Internet Routing Table:    2926
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    3308
Number of RIPE addresses announced to Internet:               692283268
    Equivalent to 41 /8s, 67 /16s and 103 /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:                   59207
    Total LACNIC prefixes after maximum aggregation:              10930
    LACNIC Deaggregation factor:                                   5.42
Prefixes being announced from the LACNIC address blocks:          68225
    Unique aggregates announced from the LACNIC address blocks:   31110
LACNIC Region origin ASes present in the Internet Routing Table:   2397
    LACNIC Prefixes per ASN:                                      28.46
LACNIC Region origin ASes announcing only one prefix:               640
LACNIC Region transit ASes present in the Internet Routing Table:   478
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1449
Number of LACNIC addresses announced to Internet:             167563136
    Equivalent to 9 /8s, 252 /16s and 207 /24s
    Percentage of available LACNIC address space announced:        99.9

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:                  12515
    Total AfriNIC prefixes after maximum aggregation:              2966
    AfriNIC Deaggregation factor:                                  4.22
Prefixes being announced from the AfriNIC address blocks:         13460
    Unique aggregates announced from the AfriNIC address blocks:   4935
AfriNIC Region origin ASes present in the Internet Routing Table:   730
    AfriNIC Prefixes per ASN:                                     18.44
AfriNIC Region origin ASes announcing only one prefix:              203
AfriNIC Region transit ASes present in the Internet Routing Table:  151
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:   81
Number of AfriNIC addresses announced to Internet:             60850176
    Equivalent to 3 /8s, 160 /16s and 128 /24s
    Percentage of available AfriNIC address space announced:       60.4

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     2894      11579         923   Korea Telecom
17974     2822        904          77   PT Telekomunikasi Indonesia
 7545     2490        336         128   TPG Telecom Limited
 4755     1926        418         190   TATA Communications formerly 
 4538     1759       4190          71   China Education and Research 
 9829     1658       1319          45   National Internet Backbone
 9808     1511       6719          19   Guangdong Mobile Communicatio
 4808     1452       2211         431   CNCGROUP IP network China169 
 9583     1315        106         537   Sify Limited
 9498     1300        336          97   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     2918       2955         141   Cox Communications Inc.
 6389     2877       3688          51   BellSouth.net Inc.
 3356     2552      10700         473   Level 3 Communications, Inc.
18566     2042        379         183   MegaPath Corporation
20115     1855       1825         445   Charter Communications
 4323     1636       1054         409   tw telecom holdings, inc.
 6983     1624        867         245   EarthLink, Inc.
30036     1510        311         579   Mediacom Communications Corp
  701     1412      11262         696   MCI Communications Services, 
22561     1317        411         244   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     1921        299         354   TELLCOM ILETISIM HIZMETLERI A
20940     1527        593        1128   Akamai International B.V.
 8402     1436        544          15   OJSC "Vimpelcom"
31148     1037         45          21   Freenet Ltd.
13188     1036         97          54   TOV "Bank-Inform"
 8551      903        373          48   Bezeq International-Ltd
 9198      838        349          26   JSC Kazakhtelecom
 6830      820       2339         441   Liberty Global Operations B.V
12479      817        794          85   France Telecom Espana SA
 9121      599       1693          22   Turk Telekomunikasyon Anonim 

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     3062        497         234   Telmex Colombia S.A.
28573     2314       2120         123   NET Serviços de Comunicação S
 6147     1801        374          30   Telefonica del Peru S.A.A.
 7303     1771       1172         237   Telecom Argentina S.A.
 8151     1479       3025         430   Uninet S.A. de C.V.
 6503     1229        433          58   Axtel, S.A.B. de C.V.
 7738     1000       1882          42   Telemar Norte Leste S.A.
26615      930       2325          35   Tim Celular S.A.
 3816      911        396         148   COLOMBIA TELECOMUNICACIONES S
27947      889        129          50   Telconet 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     1469        958          13   TE-AS
24863      953        284          26   Link Egypt (Link.NET)
36903      456        230          95   Office National des Postes et
36992      394        847          23   ETISALAT MISR
37492      347        145          64   Orange Tunisie
24835      308        144           9   Vodafone Data
 3741      250        921         213   Internet Solutions
29571      234         21          12   Cote d'Ivoire Telecom
37457      198        160           4   Telkom SA Ltd.
36947      194        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     3062        497         234   Telmex Colombia S.A.
22773     2918       2955         141   Cox Communications Inc.
 4766     2894      11579         923   Korea Telecom
 6389     2877       3688          51   BellSouth.net Inc.
17974     2822        904          77   PT Telekomunikasi Indonesia
 3356     2552      10700         473   Level 3 Communications, Inc.
 7545     2490        336         128   TPG Telecom Limited
28573     2314       2120         123   NET Serviços de Comunicação S
18566     2042        379         183   MegaPath Corporation
 4755     1926        418         190   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      2877        2826      BellSouth.net Inc.
22773      2918        2777      Cox Communications Inc.
17974      2822        2745      PT Telekomunikasi Indonesia
 7545      2490        2362      TPG Telecom Limited
28573      2314        2191      NET Serviços de Comunicação S
 3356      2552        2079      Level 3 Communications, Inc.
 4766      2894        1971      Korea Telecom
18566      2042        1859      MegaPath Corporation
 6147      1801        1771      Telefonica del Peru S.A.A.
 4755      1926        1736      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
46467   UNALLOCATED  8.19.192.0/24        46887       Lightower Fiber Netw
18985   UNALLOCATED  8.21.68.0/22          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
27205   UNALLOCATED  8.38.16.0/21          6461       Abovenet Communicati
15347   UNALLOCATED  8.224.147.0/24       12064       Cox Communications I

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
23.252.224.0/20      62502     >>UNKNOWN<<
23.252.224.0/21      62502     >>UNKNOWN<<
23.252.232.0/21      62502     >>UNKNOWN<<
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<<
41.73.10.0/24        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      /11:92      /12:265     
/13:502     /14:1000    /15:1729    /16:13039   /17:7176    /18:11993   
/19:25003   /20:35618   /21:38148   /22:56402   /23:48993   /24:281326  
/25:1094    /26:1089    /27:686     /28:17      /29:18      /30:10      
/31:0       /32:9       

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

  ASN   No of nets  Total ann.   Description
22773     2133          2918      Cox Communications Inc.
18566     1997          2042      MegaPath Corporation
 6389     1666          2877      BellSouth.net Inc.
30036     1356          1510      Mediacom Communications Corp
 6147     1345          1801      Telefonica del Peru S.A.A.
 6983     1311          1624      EarthLink, Inc.
34984     1229          1921      TELLCOM ILETISIM HIZMETLERI A
11492     1116          1175      CABLE ONE, INC.
 8402     1099          1436      OJSC "Vimpelcom"
10620     1086          3062      Telmex Colombia S.A.

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

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

   1:1414      2:671       3:3         4:95        5:1213      6:21     
   8:1398     11:1        12:1835     13:4        14:1210     15:17     
  16:2        17:45       18:21       20:51       23:1059     24:1661   
  27:1838     31:1467     32:39       33:2        34:5        35:1      
  36:146      37:1861     38:970      39:13       40:226      41:2972   
  42:287      43:817      44:21       45:84       46:2126     47:32     
  49:778      50:792      52:12       54:60       55:8        56:8      
  57:31       58:1092     59:659      60:450      61:1720     62:1314   
  63:1887     64:4401     65:2258     66:4070     67:2013     68:1044   
  69:3238     70:904      71:428      72:1959     74:2600     75:324    
  76:410      77:1353     78:1045     79:786      80:1324     81:1293   
  82:811      83:682      84:675      85:1325     86:431      87:1218   
  88:516      89:1840     90:139      91:5850     92:797      93:1682   
  94:1985     95:1400     96:421      97:338      98:1044     99:48     
 100:69      101:788     103:6369    104:899     105:187     106:194    
 107:890     108:612     109:2055    110:1051    111:1446    112:731    
 113:897     114:802     115:1236    116:1287    117:1022    118:1666   
 119:1366    120:430     121:994     122:2196    123:1707    124:1466   
 125:1521    128:642     129:360     130:382     131:1072    132:440    
 133:167     134:388     135:87      136:329     137:298     138:383    
 139:173     140:224     141:418     142:621     143:437     144:507    
 145:111     146:683     147:563     148:1063    149:407     150:532    
 151:586     152:470     153:247     154:292     155:659     156:390    
 157:333     158:264     159:960     160:368     161:629     162:1858   
 163:371     164:649     165:671     166:320     167:708     168:1165   
 169:132     170:1426    171:221     172:50      173:1575    174:702    
 175:595     176:1563    177:3703    178:2104    179:812     180:1838   
 181:1687    182:1688    183:530     184:727     185:2581    186:2952   
 187:1689    188:2010    189:1549    190:7885    191:848     192:7955   
 193:5561    194:4064    195:3627    196:1683    197:873     198:5400   
 199:5499    200:6520    201:2945    202:9453    203:8998    204:4661   
 205:2708    206:2991    207:2969    208:3903    209:3846    210:3477   
 211:1836    212:2542    213:2248    214:830     215:73      216:5541   
 217:1760    218:649     219:466     220:1301    221:776     222:458    
 223:647    

End of report


More information about the sanog mailing list