[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Dec 4 18:11:13 UTC 2015


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 05 Dec, 2015

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

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

BGP routing table entries examined:                              571357
    Prefixes after maximum aggregation (per Origin AS):          212309
    Deaggregation factor:                                          2.69
    Unique aggregates announced (without unneeded subnets):      278305
Total ASes present in the Internet Routing Table:                 52177
    Prefixes per ASN:                                             10.95
Origin-only ASes present in the Internet Routing Table:           36655
Origin ASes announcing only one prefix:                           15946
Transit ASes present in the Internet Routing Table:                6383
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:                                      35
    Max AS path prepend of ASN ( 55644)                              31
Prefixes from unregistered ASNs in the Routing Table:              1028
    Unregistered ASNs in the Routing Table:                         367
Number of 32-bit ASNs allocated by the RIRs:                      11965
Number of 32-bit ASNs visible in the Routing Table:                9139
Prefixes from 32-bit ASNs in the Routing Table:                   34775
Number of bogon 32-bit ASNs visible in the Routing Table:            14
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            421
Number of addresses announced to Internet:                   2802085056
    Equivalent to 167 /8s, 4 /16s and 108 /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:               97.8
Total number of prefixes smaller than registry allocations:      188133

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

Prefixes being announced by APNIC Region ASes:                   144487
    Total APNIC prefixes after maximum aggregation:               39866
    APNIC Deaggregation factor:                                    3.62
Prefixes being announced from the APNIC address blocks:          152684
    Unique aggregates announced from the APNIC address blocks:    60777
APNIC Region origin ASes present in the Internet Routing Table:    5113
    APNIC Prefixes per ASN:                                       29.86
APNIC Region origin ASes announcing only one prefix:               1190
APNIC Region transit ASes present in the Internet Routing Table:    895
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         34
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1719
Number of APNIC addresses announced to Internet:              756067456
    Equivalent to 45 /8s, 16 /16s and 172 /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:                    180946
    Total ARIN prefixes after maximum aggregation:                88978
    ARIN Deaggregation factor:                                     2.03
Prefixes being announced from the ARIN address blocks:           184304
    Unique aggregates announced from the ARIN address blocks:     86632
ARIN Region origin ASes present in the Internet Routing Table:    16512
    ARIN Prefixes per ASN:                                        11.16
ARIN Region origin ASes announcing only one prefix:                5973
ARIN Region transit ASes present in the Internet Routing Table:    1717
Average ARIN Region AS path length visible:                         3.7
    Max ARIN Region AS path length visible:                          27
Number of ARIN region 32-bit ASNs visible in the Routing Table:     859
Number of ARIN addresses announced to Internet:              1102523072
    Equivalent to 65 /8s, 183 /16s and 42 /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:                    137500
    Total RIPE prefixes after maximum aggregation:                68502
    RIPE Deaggregation factor:                                     2.01
Prefixes being announced from the RIPE address blocks:           145455
    Unique aggregates announced from the RIPE address blocks:     90245
RIPE Region origin ASes present in the Internet Routing Table:    18032
    RIPE Prefixes per ASN:                                         8.07
RIPE Region origin ASes announcing only one prefix:                7990
RIPE Region transit ASes present in the Internet Routing Table:    2987
Average RIPE Region AS path length visible:                         4.8
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    4264
Number of RIPE addresses announced to Internet:               701905536
    Equivalent to 41 /8s, 214 /16s and 58 /24s
    Percentage of available RIPE address space announced:         102.0

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:                   60468
    Total LACNIC prefixes after maximum aggregation:              11827
    LACNIC Deaggregation factor:                                   5.11
Prefixes being announced from the LACNIC address blocks:          73119
    Unique aggregates announced from the LACNIC address blocks:   34095
LACNIC Region origin ASes present in the Internet Routing Table:   2455
    LACNIC Prefixes per ASN:                                      29.78
LACNIC Region origin ASes announcing only one prefix:               599
LACNIC Region transit ASes present in the Internet Routing Table:   544
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        22
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  2126
Number of LACNIC addresses announced to Internet:             170315776
    Equivalent to 10 /8s, 38 /16s and 208 /24s
    Percentage of available LACNIC address space announced:       101.5

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:                  13096
    Total AfriNIC prefixes after maximum aggregation:              3095
    AfriNIC Deaggregation factor:                                  4.23
Prefixes being announced from the AfriNIC address blocks:         15374
    Unique aggregates announced from the AfriNIC address blocks:   6200
AfriNIC Region origin ASes present in the Internet Routing Table:   734
    AfriNIC Prefixes per ASN:                                     20.95
AfriNIC Region origin ASes announcing only one prefix:              194
AfriNIC Region transit ASes present in the Internet Routing Table:  164
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       20
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  171
Number of AfriNIC addresses announced to Internet:             70910720
    Equivalent to 4 /8s, 58 /16s and 3 /24s
    Percentage of available AfriNIC address space announced:       70.4

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
 4538     5502       4192          75   China Education and Research 
 7545     3019        346         154   TPG Telecom Limited
 4766     2994      11135         990   Korea Telecom
17974     2725        914          96   PT Telekomunikasi Indonesia
 9829     2214       1413         315   National Internet Backbone
 4755     2065        431         234   TATA Communications formerly 
 9808     1684       8639          18   Guangdong Mobile Communicatio
 4808     1568       2273         500   CNCGROUP IP network China169 
 9583     1519        163          85   Sify Limited
 9498     1401        335         112   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     3244       2964         143   Cox Communications Inc.
 3356     2574      10691         525   Level 3 Communications, Inc.
 6389     2508       3687          42   BellSouth.net Inc.
18566     2213        394         277   MegaPath Corporation
20115     1889       1897         401   Charter Communications
 6983     1697        849         238   EarthLink, Inc.
30036     1656        331         355   Mediacom Communications Corp
 4323     1578       1021         396   tw telecom holdings, inc.
  209     1486       4327        1235   Qwest Communications Company,
  701     1392      11415         664   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     2241        888        1608   Akamai International B.V.
34984     1912        319         410   TELLCOM ILETISIM HIZMETLERI A
 8551     1241        376          44   Bezeq International-Ltd
 8402     1185        544          15   OJSC "Vimpelcom"
13188     1075         97          79   TOV "Bank-Inform"
12479     1051        967          77   France Telecom Espana SA
31148     1041         47          41   Freenet Ltd.
 9198      958        349          25   JSC Kazakhtelecom
 6830      898       2712         468   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         157   Telmex Colombia S.A.
 8151     2113       3347         500   Uninet S.A. de C.V.
 7303     1580        941         241   Telecom Argentina S.A.
 6503     1386        437          57   Axtel, S.A.B. de C.V.
28573     1261       2164         119   NET Serviços de Comunicação S
11830     1094        364          24   Instituto Costarricense de El
 6147     1039        376          34   Telefonica del Peru S.A.A.
26615     1000       2325          34   Tim Celular S.A.
 7738      994       1882          41   Telemar Norte Leste S.A.
 3816      970        459         186   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     1117       1470          14   TE-AS
24863     1038        409          38   Link Egypt (Link.NET)
37611      577         39          42   Afrihost-Brevis Computer Serv
36903      522        263         102   Office National des Postes et
36992      427       1229          31   ETISALAT MISR
37492      323        192          74   Orange Tunisie
29571      244         21          11   Cote d'Ivoire Telecom
 3741      221        837         183   Internet Solutions
24835      201        146          12   Vodafone Data
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     5502       4192          75   China Education and Research 
10620     3407        540         157   Telmex Colombia S.A.
22773     3244       2964         143   Cox Communications Inc.
 7545     3019        346         154   TPG Telecom Limited
 4766     2994      11135         990   Korea Telecom
17974     2725        914          96   PT Telekomunikasi Indonesia
 3356     2574      10691         525   Level 3 Communications, Inc.
 6389     2508       3687          42   BellSouth.net Inc.
39891     2473        129           7   SaudiNet, Saudi Telecom Compa
20940     2241        888        1608   Akamai International B.V.

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        3250      Telmex Colombia S.A.
22773      3244        3101      Cox Communications Inc.
 7545      3019        2865      TPG Telecom Limited
17974      2725        2629      PT Telekomunikasi Indonesia
 6389      2508        2466      BellSouth.net Inc.
39891      2473        2466      SaudiNet, Saudi Telecom Compa
 3356      2574        2049      Level 3 Communications, Inc.
 4766      2994        2004      Korea Telecom
18566      2213        1936      MegaPath Corporation
 9829      2214        1899      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
 8655   UNALLOCATED  1.3.3.0/24            4134       No.31,Jin-rong Stree
30662   UNALLOCATED  8.2.129.0/24          3356       Level 3 Communicatio
47092   UNALLOCATED  8.8.204.0/24         16410       The Reynolds and Rey
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

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
31.217.248.0/21      44902     COVAGE NETWORKS SASU
37.46.8.0/23         13768     Peer 1 Network (USA) Inc.
37.46.10.0/23        36351     SoftLayer Technologies Inc.
37.46.14.0/24        36351     SoftLayer Technologies Inc.

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       /9:11      /10:36      /11:98      /12:264     
/13:507     /14:1009    /15:1765    /16:12937   /17:7374    /18:12563   
/19:25583   /20:37612   /21:39750   /22:62943   /23:54469   /24:312855  
/25:541     /26:580     /27:382     /28:16      /29:16      /30:9       
/31:0       /32:21      

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

  ASN   No of nets  Total ann.   Description
22773     2435          3244      Cox Communications Inc.
39891     2432          2473      SaudiNet, Saudi Telecom Compa
18566     2115          2213      MegaPath Corporation
 6389     1553          2508      BellSouth.net Inc.
30036     1473          1656      Mediacom Communications Corp
 6983     1344          1697      EarthLink, Inc.
10620     1285          3407      Telmex Colombia S.A.
34984     1209          1912      TELLCOM ILETISIM HIZMETLERI A
11492     1134          1219      CABLE ONE, INC.
31148      960          1041      Freenet Ltd.

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

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

   1:1645      2:701       4:100       5:2037      6:25        8:1409   
  12:1803     13:28       14:1550     15:23       16:2        17:57     
  18:19       20:48       23:1323     24:1740     27:2129     31:1681   
  32:54       33:2        34:4        35:5        36:192      37:2223   
  38:1122     39:22       40:74       41:2894     42:365      43:1615   
  44:36       45:1520     46:2338     47:63       49:1028     50:816    
  52:33       54:93       55:7        56:8        57:44       58:1414   
  59:822      60:514      61:1762     62:1448     63:1918     64:4408   
  65:2189     66:4032     67:2138     68:1078     69:3244     70:1035   
  71:463      72:1991     74:2548     75:356      76:407      77:1382   
  78:1259     79:803      80:1339     81:1356     82:845      83:650    
  84:780      85:1482     86:454      87:1042     88:540      89:1900   
  90:167      91:5988     92:861      93:2302     94:2179     95:2236   
  96:473      97:352      98:909      99:45      100:79      101:851    
 103:8953    104:2188    105:73      106:358     107:1136    108:635    
 109:2122    110:1223    111:1519    112:859     113:1101    114:892    
 115:1512    116:1472    117:1347    118:1976    119:1494    120:506    
 121:1155    122:2129    123:1853    124:1563    125:1736    128:707    
 129:369     130:389     131:1272    132:589     133:169     134:451    
 135:119     136:344     137:248     138:1539    139:190     140:247    
 141:456     142:638     143:727     144:571     145:147     146:798    
 147:612     148:1288    149:446     150:621     151:811     152:569    
 153:271     154:473     155:906     156:453     157:446     158:342    
 159:1057    160:420     161:674     162:2209    163:493     164:706    
 165:1086    166:312     167:889     168:1331    169:545     170:1502   
 171:261     172:357     173:1557    174:705     175:759     176:1511   
 177:3933    178:2341    179:1076    180:2022    181:1598    182:1874   
 183:656     184:770     185:5035    186:3049    187:1860    188:2075   
 189:1706    190:7525    191:1211    192:8713    193:5709    194:4311   
 195:3696    196:2238    197:1109    198:5484    199:5545    200:6682   
 201:3504    202:9848    203:9243    204:4567    205:2746    206:3032   
 207:3022    208:4004    209:3968    210:3748    211:2008    212:2684   
 213:2179    214:842     215:73      216:5763    217:1879    218:743    
 219:542     220:1631    221:808     222:639     223:861    

End of report


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