[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jan 1 18:11:17 UTC 2016


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,
SAFNOG, PaNOG, SdNOG, BJNOG, CaribNOG and the RIPE Routing WG.

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 02 Jan, 2016

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

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

BGP routing table entries examined:                              576790
    Prefixes after maximum aggregation (per Origin AS):          213317
    Deaggregation factor:                                          2.70
    Unique aggregates announced (without unneeded subnets):      281104
Total ASes present in the Internet Routing Table:                 52380
    Prefixes per ASN:                                             11.01
Origin-only ASes present in the Internet Routing Table:           36587
Origin ASes announcing only one prefix:                           15873
Transit ASes present in the Internet Routing Table:                6419
Transit-only ASes present in the Internet Routing Table:            165
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      39
    Max AS path prepend of ASN ( 55644)                              36
Prefixes from unregistered ASNs in the Routing Table:              1004
    Unregistered ASNs in the Routing Table:                         361
Number of 32-bit ASNs allocated by the RIRs:                      12266
Number of 32-bit ASNs visible in the Routing Table:                9374
Prefixes from 32-bit ASNs in the Routing Table:                   35887
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:            382
Number of addresses announced to Internet:                   2802747332
    Equivalent to 167 /8s, 14 /16s and 135 /24s
    Percentage of available address space announced:               75.7
    Percentage of allocated address space announced:               75.7
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               97.9
Total number of prefixes smaller than registry allocations:      189420

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

Prefixes being announced by APNIC Region ASes:                   146553
    Total APNIC prefixes after maximum aggregation:               40529
    APNIC Deaggregation factor:                                    3.62
Prefixes being announced from the APNIC address blocks:          155260
    Unique aggregates announced from the APNIC address blocks:    62790
APNIC Region origin ASes present in the Internet Routing Table:    5122
    APNIC Prefixes per ASN:                                       30.31
APNIC Region origin ASes announcing only one prefix:               1194
APNIC Region transit ASes present in the Internet Routing Table:    898
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         39
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1779
Number of APNIC addresses announced to Internet:              756331140
    Equivalent to 45 /8s, 20 /16s and 178 /24s
    Percentage of available APNIC address space announced:         88.4

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:                    181208
    Total ARIN prefixes after maximum aggregation:                88927
    ARIN Deaggregation factor:                                     2.04
Prefixes being announced from the ARIN address blocks:           184631
    Unique aggregates announced from the ARIN address blocks:     86591
ARIN Region origin ASes present in the Internet Routing Table:    16456
    ARIN Prefixes per ASN:                                        11.22
ARIN Region origin ASes announcing only one prefix:                5922
ARIN Region transit ASes present in the Internet Routing Table:    1725
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          37
Number of ARIN region 32-bit ASNs visible in the Routing Table:     911
Number of ARIN addresses announced to Internet:              1101680064
    Equivalent to 65 /8s, 170 /16s and 77 /24s
    Percentage of available ARIN address space announced:          58.3

ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  2138-2584, 2615-2772, 2823-2829, 2880-3153
                       3354-4607, 4865-5119, 5632-6655, 6912-7466
                       7723-8191, 10240-12287, 13312-15359, 16384-17407
                       18432-20479, 21504-23551, 25600-26591,
                       26624-27647, 29696-30719, 31744-33791
                       35840-36863, 39936-40959, 46080-47103
                       53248-55295, 62464-63487, 64198-64296, 393216-395164
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  23/8,  24/8,  26/8,  28/8,
                        29/8,  30/8,  32/8,  33/8,  34/8,  35/8,  38/8,
                        40/8,  44/8,  45/8,  47/8,  48/8,  50/8,  52/8,
                        53/8,  54/8,  55/8,  56/8,  57/8,  63/8,  64/8,
                        65/8,  66/8,  67/8,  68/8,  69/8,  70/8,  71/8,
                        72/8,  73/8,  74/8,  75/8,  76/8,  96/8,  97/8,
                        98/8,  99/8, 100/8, 104/8, 107/8, 108/8, 128/8,
                       129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
                       137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
                       146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
                       157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
                       165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
                       173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8,
                       205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8,
                       216/8,

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                    138671
    Total RIPE prefixes after maximum aggregation:                68862
    RIPE Deaggregation factor:                                     2.01
Prefixes being announced from the RIPE address blocks:           146667
    Unique aggregates announced from the RIPE address blocks:     90783
RIPE Region origin ASes present in the Internet Routing Table:    18042
    RIPE Prefixes per ASN:                                         8.13
RIPE Region origin ASes announcing only one prefix:                7973
RIPE Region transit ASes present in the Internet Routing Table:    3006
Average RIPE Region AS path length visible:                         4.9
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    4339
Number of RIPE addresses announced to Internet:               702366336
    Equivalent to 41 /8s, 221 /16s and 66 /24s
    Percentage of available RIPE address space announced:         102.1

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
                       40960-45055, 47104-52223, 56320-58367
                       59392-61439, 61952-62463, 196608-204287
RIPE Address Blocks      2/8,   5/8,  25/8,  31/8,  37/8,  46/8,  51/8,
                        62/8,  77/8,  78/8,  79/8,  80/8,  81/8,  82/8,
                        83/8,  84/8,  85/8,  86/8,  87/8,  88/8,  89/8,
                        90/8,  91/8,  92/8,  93/8,  94/8,  95/8, 109/8,
                       141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
                       193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                   60730
    Total LACNIC prefixes after maximum aggregation:              11852
    LACNIC Deaggregation factor:                                   5.12
Prefixes being announced from the LACNIC address blocks:          73834
    Unique aggregates announced from the LACNIC address blocks:   34308
LACNIC Region origin ASes present in the Internet Routing Table:   2464
    LACNIC Prefixes per ASN:                                      29.97
LACNIC Region origin ASes announcing only one prefix:               594
LACNIC Region transit ASes present in the Internet Routing Table:   546
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        24
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  2169
Number of LACNIC addresses announced to Internet:             170653696
    Equivalent to 10 /8s, 43 /16s and 248 /24s
    Percentage of available LACNIC address space announced:       101.7

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:                  13654
    Total AfriNIC prefixes after maximum aggregation:              3105
    AfriNIC Deaggregation factor:                                  4.40
Prefixes being announced from the AfriNIC address blocks:         16016
    Unique aggregates announced from the AfriNIC address blocks:   6309
AfriNIC Region origin ASes present in the Internet Routing Table:   730
    AfriNIC Prefixes per ASN:                                     21.94
AfriNIC Region origin ASes announcing only one prefix:              190
AfriNIC Region transit ASes present in the Internet Routing Table:  169
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  176
Number of AfriNIC addresses announced to Internet:             71369216
    Equivalent to 4 /8s, 65 /16s and 2 /24s
    Percentage of available AfriNIC address space announced:       70.9

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
 4538     5601       4192          76   China Education and Research 
 7545     3097        346         158   TPG Telecom Limited
 4766     3021      11136        1003   Korea Telecom
17974     2841        909          90   PT Telekomunikasi Indonesia
 9829     2292       1430         370   National Internet Backbone
 4755     2069        431         233   TATA Communications formerly 
 9808     1727       8717          29   Guangdong Mobile Communicatio
 4808     1604       2278         506   CNCGROUP IP network China169 
 9583     1511        121         558   Sify Limited
38197     1415         88         185   Sun Network (Hong Kong) Limit

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     3273       2948         145   Cox Communications Inc.
 3356     2591      10689         530   Level 3 Communications, Inc.
 6389     2508       3687          42   BellSouth.net Inc.
18566     2211        394         277   MegaPath Corporation
20115     1908       1907         407   Charter Communications
 6983     1698        849         238   EarthLink, Inc.
30036     1669        333         330   Mediacom Communications Corp
 4323     1579       1021         393   tw telecom holdings, inc.
  209     1467       4338        1231   Qwest Communications Company,
  701     1381      11445         652   MCI Communications Services, 

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
39891     2473        129           7   SaudiNet, Saudi Telecom Compa
20940     2284        902        1635   Akamai International B.V.
34984     1938        322         411   TELLCOM ILETISIM HIZMETLERI A
 8551     1435        376          44   Bezeq International-Ltd
13188     1075         97          79   TOV "Bank-Inform"
12479     1070        965          80   France Telecom Espana SA
31148     1042         47          41   Freenet Ltd.
 8402     1033        544          15   OJSC "Vimpelcom"
 9198      957        349          26   JSC Kazakhtelecom
 6830      894       2712         464   Liberty Global Operations B.V

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

LACNIC Region per AS prefix count summary
-----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
10620     3407        540         140   Telmex Colombia S.A.
 8151     2145       3372         500   Uninet S.A. de C.V.
 7303     1579        941         241   Telecom Argentina S.A.
 6503     1388        453          58   Axtel, S.A.B. de C.V.
28573     1214       2173         135   NET Serviços de Comunicação S
11830     1096        366          25   Instituto Costarricense de El
 6147     1034        376          34   Telefonica del Peru S.A.A.
 7738      994       1882          41   Telemar Norte Leste S.A.
 3816      977        460         187   COLOMBIA TELECOMUNICACIONES S
26615      959       2325          34   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     1226       1472          16   TE-AS
24863     1163        403          36   Link Egypt (Link.NET)
37611      583         39          40   Afrihost-Brevis Computer Serv
36903      552        278         110   Office National des Postes et
36992      445       1233          33   ETISALAT MISR
37492      332        197          64   Orange Tunisie
24835      326        146          12   Vodafone Data
29571      264         21          11   Cote d'Ivoire Telecom
 3741      221        837         183   Internet Solutions
15706      171         32           6   Sudatel (Sudan Telecom Co. Lt

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

Global Per AS prefix count summary
----------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4538     5601       4192          76   China Education and Research 
10620     3407        540         140   Telmex Colombia S.A.
22773     3273       2948         145   Cox Communications Inc.
 7545     3097        346         158   TPG Telecom Limited
 4766     3021      11136        1003   Korea Telecom
17974     2841        909          90   PT Telekomunikasi Indonesia
 3356     2591      10689         530   Level 3 Communications, Inc.
 6389     2508       3687          42   BellSouth.net Inc.
39891     2473        129           7   SaudiNet, Saudi Telecom Compa
 9829     2292       1430         370   National Internet Backbone

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

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

  ASN   No of nets  Net Savings Description
10620      3407        3267      Telmex Colombia S.A.
22773      3273        3128      Cox Communications Inc.
 7545      3097        2939      TPG Telecom Limited
17974      2841        2751      PT Telekomunikasi Indonesia
 6389      2508        2466      BellSouth.net Inc.
39891      2473        2466      SaudiNet, Saudi Telecom Compa
 3356      2591        2061      Level 3 Communications, Inc.
 4766      3021        2018      Korea Telecom
18566      2211        1934      MegaPath Corporation
 9829      2292        1922      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
46467   UNALLOCATED  8.19.192.0/24        46887       Lightower Fiber Netw
18985   UNALLOCATED  8.21.68.0/22          3356       Level 3 Communicatio
46473   UNALLOCATED  8.27.122.0/24         3356       Level 3 Communicatio
46473   UNALLOCATED  8.27.124.0/24         3356       Level 3 Communicatio
27205   UNALLOCATED  8.38.16.0/21          3356       Level 3 Communicatio
15347   UNALLOCATED  8.224.147.0/24       12064       Cox Communications I
33628   UNALLOCATED  12.0.239.0/24         1239       Sprint
32805   UNALLOCATED  12.1.225.0/24         7018       AT&T Services, Inc.

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

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

Network            Origin AS  Description
23.226.112.0/20      62788     >>UNKNOWN<<
23.249.144.0/20      40430     colo4jax, LLC
23.249.144.0/21      40430     colo4jax, LLC
23.249.152.0/21      40430     colo4jax, LLC
27.100.7.0/24        56096     >>UNKNOWN<<
31.170.96.0/23       23456     32bit Transition AS
37.46.10.0/23        36351     SoftLayer Technologies Inc.
37.46.14.0/24        36351     SoftLayer Technologies Inc.
37.46.15.0/24        36351     SoftLayer Technologies Inc.
41.73.1.0/24         37004     >>UNKNOWN<<

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

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:16       /9:13      /10:36      /11:100     /12:265     
/13:506     /14:1016    /15:1770    /16:12974   /17:7411    /18:12627   
/19:25579   /20:37829   /21:40085   /22:63764   /23:55187   /24:316045  
/25:547     /26:575     /27:382     /28:17      /29:16      /30:9       
/31:0       /32:21      

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

  ASN   No of nets  Total ann.   Description
22773     2460          3273      Cox Communications Inc.
39891     2432          2473      SaudiNet, Saudi Telecom Compa
18566     2113          2211      MegaPath Corporation
 6389     1553          2508      BellSouth.net Inc.
30036     1486          1669      Mediacom Communications Corp
 6983     1344          1698      EarthLink, Inc.
10620     1291          3407      Telmex Colombia S.A.
34984     1225          1938      TELLCOM ILETISIM HIZMETLERI A
11492     1135          1225      CABLE ONE, INC.
31148      961          1042      Freenet Ltd.

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

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

   1:1631      2:662       4:100       5:2064      6:26        8:1430   
  12:1796     13:30       14:1605     15:23       16:2        17:57     
  18:19       20:48       22:1        23:1325     24:1733     27:2171   
  31:1718     32:54       33:2        34:4        35:5        36:202    
  37:2179     38:1140     39:22       40:80       41:3025     42:368    
  43:1612     44:36       45:1580     46:2371     47:64       49:1068   
  50:823      51:3        52:36       54:96       55:7        56:8      
  57:44       58:1458     59:841      60:519      61:1776     62:1436   
  63:1913     64:4451     65:2175     66:4077     67:2135     68:1090   
  69:3269     70:1042     71:461      72:1984     74:2556     75:357    
  76:419      77:1389     78:1245     79:821      80:1315     81:1350   
  82:860      83:672      84:777      85:1536     86:456      87:1048   
  88:552      89:1937     90:152      91:5960     92:863      93:2301   
  94:2242     95:2255     96:471      97:353      98:955      99:45     
 100:78      101:866     103:9273    104:2189    105:90      106:361    
 107:1114    108:640     109:2376    110:1250    111:1558    112:906    
 113:1190    114:930     115:1543    116:1516    117:1361    118:2023   
 119:1518    120:520     121:1162    122:2254    123:1883    124:1577   
 125:1741    128:675     129:357     130:423     131:1256    132:600    
 133:170     134:452     135:117     136:345     137:310     138:1634   
 139:202     140:246     141:464     142:639     143:750     144:582    
 145:150     146:830     147:609     148:1429    149:454     150:628    
 151:806     152:566     153:270     154:493     155:905     156:446    
 157:416     158:348     159:1059    160:420     161:700     162:2221   
 163:525     164:710     165:1100    166:315     167:919     168:1338   
 169:561     170:1480    171:263     172:378     173:1575    174:716    
 175:769     176:1492    177:4034    178:2216    179:1050    180:2067   
 181:1646    182:1914    183:665     184:764     185:5293    186:3004   
 187:1864    188:2127    189:1712    190:7607    191:1277    192:8756   
 193:5726    194:4317    195:3715    196:2251    197:1109    198:5491   
 199:5520    200:6711    201:3496    202:9930    203:9296    204:4565   
 205:2722    206:2966    207:3039    208:4011    209:3976    210:3766   
 211:2018    212:2642    213:2185    214:819     215:72      216:5708   
 217:1894    218:741     219:556     220:1647    221:810     222:646    
 223:888    

End of report


More information about the sanog mailing list