Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Aug 3 18:03:09 UTC 2018


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, SANOG, PacNOG, SAFNOG
TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG, IRNOG 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 04 Aug, 2018

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

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

BGP routing table entries examined:                              709541
    Prefixes after maximum aggregation (per Origin AS):          272353
    Deaggregation factor:                                          2.61
    Unique aggregates announced (without unneeded subnets):      340445
Total ASes present in the Internet Routing Table:                 61400
    Prefixes per ASN:                                             11.56
Origin-only ASes present in the Internet Routing Table:           53022
Origin ASes announcing only one prefix:                           23103
Transit ASes present in the Internet Routing Table:                8378
Transit-only ASes present in the Internet Routing Table:            271
Average AS path length visible in the Internet Routing Table:       4.0
    Max AS path length visible:                                      34
    Max AS path prepend of ASN ( 30873)                              32
Prefixes from unregistered ASNs in the Routing Table:                69
    Number of instances of unregistered ASNs:                        69
Number of 32-bit ASNs allocated by the RIRs:                      23546
Number of 32-bit ASNs visible in the Routing Table:               18953
Prefixes from 32-bit ASNs in the Routing Table:                   79380
Number of bogon 32-bit ASNs visible in the Routing Table:            37
Special use prefixes present in the Routing Table:                    2
Prefixes being announced from unallocated address space:            286
Number of addresses announced to Internet:                   2857337412
    Equivalent to 170 /8s, 79 /16s and 130 /24s
    Percentage of available address space announced:               77.2
    Percentage of allocated address space announced:               77.2
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.0
Total number of prefixes smaller than registry allocations:      236740

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

Prefixes being announced by APNIC Region ASes:                   193849
    Total APNIC prefixes after maximum aggregation:               55014
    APNIC Deaggregation factor:                                    3.52
Prefixes being announced from the APNIC address blocks:          192078
    Unique aggregates announced from the APNIC address blocks:    78887
APNIC Region origin ASes present in the Internet Routing Table:    8980
    APNIC Prefixes per ASN:                                       21.39
APNIC Region origin ASes announcing only one prefix:               2527
APNIC Region transit ASes present in the Internet Routing Table:   1331
Average APNIC Region AS path length visible:                        4.0
    Max APNIC Region AS path length visible:                         29
Number of APNIC region 32-bit ASNs visible in the Routing Table:   3937
Number of APNIC addresses announced to Internet:              767366915
    Equivalent to 45 /8s, 189 /16s and 23 /24s
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, 64297-64395, 131072-137529
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:                    210390
    Total ARIN prefixes after maximum aggregation:               100012
    ARIN Deaggregation factor:                                     2.10
Prefixes being announced from the ARIN address blocks:           210547
    Unique aggregates announced from the ARIN address blocks:     99642
ARIN Region origin ASes present in the Internet Routing Table:    18194
    ARIN Prefixes per ASN:                                        11.57
ARIN Region origin ASes announcing only one prefix:                6731
ARIN Region transit ASes present in the Internet Routing Table:    1810
Average ARIN Region AS path length visible:                         3.6
    Max ARIN Region AS path length visible:                          23
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2391
Number of ARIN addresses announced to Internet:              1103191200
    Equivalent to 65 /8s, 193 /16s and 92 /24s
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, 393216-397212
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:                    194343
    Total RIPE prefixes after maximum aggregation:                92754
    RIPE Deaggregation factor:                                     2.10
Prefixes being announced from the RIPE address blocks:           190547
    Unique aggregates announced from the RIPE address blocks:    112905
RIPE Region origin ASes present in the Internet Routing Table:    25366
    RIPE Prefixes per ASN:                                         7.51
RIPE Region origin ASes announcing only one prefix:               11433
RIPE Region transit ASes present in the Internet Routing Table:    3511
Average RIPE Region AS path length visible:                         4.1
    Max RIPE Region AS path length visible:                          34
Number of RIPE region 32-bit ASNs visible in the Routing Table:    7254
Number of RIPE addresses announced to Internet:               714013824
    Equivalent to 42 /8s, 142 /16s and 252 /24s
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, 64396-64495
                       196608-207259
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:                   91640
    Total LACNIC prefixes after maximum aggregation:              20428
    LACNIC Deaggregation factor:                                   4.49
Prefixes being announced from the LACNIC address blocks:          93081
    Unique aggregates announced from the LACNIC address blocks:   40845
LACNIC Region origin ASes present in the Internet Routing Table:   7379
    LACNIC Prefixes per ASN:                                      12.61
LACNIC Region origin ASes announcing only one prefix:              2020
LACNIC Region transit ASes present in the Internet Routing Table:  1393
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        32
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  4922
Number of LACNIC addresses announced to Internet:             172281632
    Equivalent to 10 /8s, 68 /16s and 207 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-268700 + 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:                  19249
    Total AfriNIC prefixes after maximum aggregation:              4087
    AfriNIC Deaggregation factor:                                  4.71
Prefixes being announced from the AfriNIC address blocks:         23002
    Unique aggregates announced from the AfriNIC address blocks:   7917
AfriNIC Region origin ASes present in the Internet Routing Table:  1180
    AfriNIC Prefixes per ASN:                                     19.49
AfriNIC Region origin ASes announcing only one prefix:              392
AfriNIC Region transit ASes present in the Internet Routing Table:  236
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       29
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  449
Number of AfriNIC addresses announced to Internet:            100038144
    Equivalent to 5 /8s, 246 /16s and 118 /24s
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         4694       4192      74  ERX-CERNET-BKB China Education and Rese
  7545         4383        467     464  TPG-INTERNET-AP TPG Telecom Limited, AU
  7552         2979       1153      84  VIETEL-AS-AP Viettel Group, VN
  4766         2855      11135     767  KIXS-AS-KR Korea Telecom, KR
  9829         2813       1497     543  BSNL-NIB National Internet Backbone, IN
 45899         2658       1636     109  VNPT-AS-VN VNPT Corp, VN
  9394         2541       4907      31  CTTNET China TieTong Telecommunications
 17974         2260        946      70  TELKOMNET-AS2-AP PT Telekomunikasi Indo
  9808         2240       8699      26  CMNET-GD Guangdong Mobile Communication
  4755         2115        433     206  TATACOMM-AS TATA Communications formerl

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
  6327         3435       1324      82  SHAW - Shaw Communications Inc., CA
 22773         3261       2968     149  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 11492         2691        252     436  CABLEONE - CABLE ONE, INC., US
 16509         2247       4790     767  AMAZON-02 - Amazon.com, Inc., US
 18566         2167        405     109  MEGAPATH5-US - MegaPath Corporation, US
 20115         2124       2640     485  CHARTER-NET-HKY-NC - Charter Communicat
 30036         2016        344     147  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
 16625         2013       1037    1447  AKAMAI-AS - Akamai Technologies, Inc., 
   209         1993       5085     603  CENTURYLINK-US-LEGACY-QWEST - Qwest Com
  7018         1761      20206    1278  ATT-INTERNET4 - AT&T Services, Inc., US

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
 12479         4657       1611     123  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  8551         2847        378      44  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2541        622    1886  AKAMAI-ASN1, US
 12389         2041       1891     731  ROSTELECOM-AS, RU
 34984         1999        334     511  TELLCOM-AS, TR
  9121         1855       1692      19  TTNET, TR
 13188         1605        100      39  TRIOLAN, UA
  6849         1241        355      21  UKRTELNET, UA
  8402         1214        544      14  CORBINA-AS OJSC "Vimpelcom", RU

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
  8151         5178       3349     606  Uninet S.A. de C.V., MX
 10620         3515        535     387  Telmex Colombia S.A., CO
 11830         2656        369      78  Instituto Costarricense de Electricidad
  6503         1667        444      64  Axtel, S.A.B. de C.V., MX
  7303         1507       1026     188  Telecom Argentina S.A., AR
 28573         1088       2245     185  CLARO S.A., BR
  3816         1020        508     129  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147          931        377      31  Telefonica del Peru S.A.A., PE
 11172          929        126      85  Alestra, S. de R.L. de C.V., MX
 18881          913       1078      30  TELEFÔNICA BRASIL S.A, BR

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
 24863         1170        396      48  LINKdotNET-AS, EG
 37611          888        107       9  Afrihost, ZA
 36903          778        391     137  MT-MPLS, MA
 36992          742       1411      40  ETISALAT-MISR, EG
 24835          635        818      18  RAYA-AS, EG
  8452          617       1730      18  TE-AS TE-AS, EG
 37492          473        470      57  ORANGE-, TN
 29571          458         68      12  ORANGE-COTE-IVOIRE, CI
 37342          386         32       1  MOVITEL, MZ
 23889          377        231      15  MauritiusTelecom, MU

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
  8151         5178       3349     606  Uninet S.A. de C.V., MX
  4538         4694       4192      74  ERX-CERNET-BKB China Education and Rese
 12479         4657       1611     123  UNI2-AS, ES
  7545         4383        467     464  TPG-INTERNET-AP TPG Telecom Limited, AU
 39891         3778        203      20  ALJAWWALSTC-AS, SA
 10620         3515        535     387  Telmex Colombia S.A., CO
  6327         3435       1324      82  SHAW - Shaw Communications Inc., CA
 22773         3261       2968     149  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  7552         2979       1153      84  VIETEL-AS-AP Viettel Group, VN
  4766         2855      11135     767  KIXS-AS-KR Korea Telecom, KR

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

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

  ASN   No of nets  Net Savings  Description
  4538       4694         4620   ERX-CERNET-BKB China Education and Research Net
 12479       4657         4534   UNI2-AS, ES
  7545       4383         3919   TPG-INTERNET-AP TPG Telecom Limited, AU
 39891       3778         3758   ALJAWWALSTC-AS, SA
  6327       3435         3353   SHAW - Shaw Communications Inc., CA
 10620       3515         3128   Telmex Colombia S.A., CO
 22773       3261         3112   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  7552       2979         2895   VIETEL-AS-AP Viettel Group, VN
  8551       2847         2803   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11830       2656         2578   Instituto Costarricense de Electricidad y Telec

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

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS    Designation  Network              Transit AS  Description
  64514   PRIVATE      5.42.231.0/24        35753       ITC ITC AS number, SA
 230105   UNALLOCATED  38.110.79.0/24       23015       CMC180-TOR-AS - Cambridge Merc
  64500   DOCUMENT     45.43.56.0/24       135391       AOFEI-HK AOFEI DATA INTERNATIO
 266842   UNALLOCATED  45.238.156.0/22     265680       HNTELCO S.A, HN
  65001   PRIVATE      46.237.40.0/21       13118       ASN-YARTELECOM PJSC Rostelecom
4200015017   PRIVATE      47.74.136.0/24       45102       CNNIC-ALIBABA-CN-NET-AP Alibab
4200015017   PRIVATE      47.74.161.0/24       45102       CNNIC-ALIBABA-CN-NET-AP Alibab
4200015017   PRIVATE      47.74.203.0/24       45102       CNNIC-ALIBABA-CN-NET-AP Alibab
4200015017   PRIVATE      47.88.147.0/24       45102       CNNIC-ALIBABA-CN-NET-AP Alibab
  64513   PRIVATE      62.150.101.0/24       9155       QNET Kuwait, KW

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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
100.66.224.0/19        209     CENTURYLINK-US-LEGACY-QWEST - Qwest Communicati
198.18.1.19/32        7497     CSTNET-AS-AP Computer Network Information Cente

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

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

Network            Origin AS  Description
27.100.7.0/24        56096    UNKNOWN
41.76.136.0/22       37500    -Reserved AS-, ZZ
41.76.136.0/24       37500    -Reserved AS-, ZZ
41.76.138.0/24       37500    -Reserved AS-, ZZ
41.76.139.0/24       37500    -Reserved AS-, ZZ
41.76.140.0/22       37500    -Reserved AS-, ZZ
41.78.92.0/22        14988    BTC-GATE1, BW
41.78.180.0/23       37265    -Reserved AS-, ZZ
43.251.20.0/22        9381    WTT-AS-AP WTT HK Limited, HK
43.251.84.0/22      133676    PNPL-AS Precious netcom pvt ltd, IN

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        /8:14       /9:11      /10:36      /11:99      /12:291     
/13:570     /14:1096    /15:1897    /16:13374   /17:7928    /18:13775   
/19:25377   /20:39399   /21:45804   /22:87910   /23:71570   /24:398231  
/25:797     /26:605     /27:625     /28:35      /29:20      /30:19      
/31:4       /32:54      

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

   ASN   No of nets  Total ann.  Description
 12479     3399          4657    UNI2-AS, ES
  6327     3222          3435    SHAW - Shaw Communications Inc., CA
 39891     2946          3778    ALJAWWALSTC-AS, SA
 22773     2522          3261    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  8551     2309          2847    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11492     2110          2691    CABLEONE - CABLE ONE, INC., US
 18566     2061          2167    MEGAPATH5-US - MegaPath Corporation, US
 11830     2004          2656    Instituto Costarricense de Electricidad y Telec
 30036     1768          2016    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
 10620     1593          3515    Telmex Colombia S.A., CO

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

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

   1:1612      2:846       4:18        5:2825      6:41        7:1      
   8:1125     12:1872     13:208      14:1787     15:31       16:3      
  17:189      18:54       20:50       23:2465     24:2223     25:2      
  27:2473     31:2037     32:86       35:27       36:509      37:2777   
  38:1483     39:246      40:122      41:3155     42:695      43:1967   
  44:122      45:5227     46:3094     47:205      49:1331     50:1054   
  51:318      52:1076     54:365      55:1        56:12       57:39     
  58:1626     59:992      60:400      61:2118     62:1873     63:1788   
  64:5045     65:2199     66:4683     67:2471     68:1162     69:3288   
  70:1154     71:580      72:2135     74:2716     75:420      76:460    
  77:1635     78:1698     79:2149     80:1545     81:1381     82:1067   
  83:786      84:1069     85:1987     86:566      87:1358     88:920    
  89:2361     90:214      91:6435     92:1258     93:2382     94:2387   
  95:2918     96:778      97:355      98:936      99:133     100:86     
 101:1237    102:172     103:18311   104:3566    105:216     106:768    
 107:1796    108:696     109:3170    110:1626    111:1792    112:1332   
 113:1298    114:1135    115:1654    116:1644    117:1896    118:2211   
 119:1678    120:1009    121:1057    122:2472    123:1766    124:1448   
 125:1922    128:1101    129:684     130:492     131:1609    132:729    
 133:195     134:1023    135:232     136:503     137:651     138:1930   
 139:660     140:476     141:734     142:803     143:1007    144:809    
 145:484     146:1211    147:727     148:1643    149:754     150:743    
 151:1095    152:816     153:321     154:1463    155:799     156:1256   
 157:795     158:655     159:1784    160:1277    161:804     162:2593   
 163:597     164:1074    165:1525    166:462     167:1307    168:3126   
 169:827     170:3828    171:492     172:1022    173:2001    174:929    
 175:771     176:2000    177:4051    178:2552    179:1247    180:2176   
 181:2412    182:2399    183:1239    184:1053    185:13899   186:3601   
 187:2376    188:2922    189:2045    190:8173    191:1352    192:9810   
 193:6092    194:4973    195:3984    196:2617    197:1608    198:5554   
 199:5900    200:7335    201:5040    202:10248   203:10268   204:4561   
 205:2870    206:3176    207:3199    208:3969    209:4009    210:3867   
 211:1983    212:3051    213:2813    214:1025    215:56      216:6037   
 217:2123    218:853     219:578     220:1817    221:992     222:973    
 223:1375   

End of report


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