Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Sep 28 18:03:12 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 29 Sep, 2018

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

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

BGP routing table entries examined:                              718431
    Prefixes after maximum aggregation (per Origin AS):          276135
    Deaggregation factor:                                          2.60
    Unique aggregates announced (without unneeded subnets):      344920
Total ASes present in the Internet Routing Table:                 61949
    Prefixes per ASN:                                             11.60
Origin-only ASes present in the Internet Routing Table:           53479
Origin ASes announcing only one prefix:                           23303
Transit ASes present in the Internet Routing Table:                8470
Transit-only ASes present in the Internet Routing Table:            258
Average AS path length visible in the Internet Routing Table:       4.0
    Max AS path length visible:                                      36
    Max AS path prepend of ASN ( 30873)                              34
Prefixes from unregistered ASNs in the Routing Table:                47
    Number of instances of unregistered ASNs:                        47
Number of 32-bit ASNs allocated by the RIRs:                      24227
Number of 32-bit ASNs visible in the Routing Table:               19553
Prefixes from 32-bit ASNs in the Routing Table:                   82433
Number of bogon 32-bit ASNs visible in the Routing Table:            13
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            297
Number of addresses announced to Internet:                   2854737091
    Equivalent to 170 /8s, 39 /16s and 212 /24s
    Percentage of available address space announced:               77.1
    Percentage of allocated address space announced:               77.1
    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:      240210

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

Prefixes being announced by APNIC Region ASes:                   195396
    Total APNIC prefixes after maximum aggregation:               55713
    APNIC Deaggregation factor:                                    3.51
Prefixes being announced from the APNIC address blocks:          193250
    Unique aggregates announced from the APNIC address blocks:    79704
APNIC Region origin ASes present in the Internet Routing Table:    9114
    APNIC Prefixes per ASN:                                       21.20
APNIC Region origin ASes announcing only one prefix:               2559
APNIC Region transit ASes present in the Internet Routing Table:   1363
Average APNIC Region AS path length visible:                        4.0
    Max APNIC Region AS path length visible:                         30
Number of APNIC region 32-bit ASNs visible in the Routing Table:   4078
Number of APNIC addresses announced to Internet:              767593602
    Equivalent to 45 /8s, 192 /16s and 140 /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, 131072-139577
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:                    214048
    Total ARIN prefixes after maximum aggregation:               101265
    ARIN Deaggregation factor:                                     2.11
Prefixes being announced from the ARIN address blocks:           213746
    Unique aggregates announced from the ARIN address blocks:    101660
ARIN Region origin ASes present in the Internet Routing Table:    18250
    ARIN Prefixes per ASN:                                        11.71
ARIN Region origin ASes announcing only one prefix:                6772
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:    2441
Number of ARIN addresses announced to Internet:              1098335136
    Equivalent to 65 /8s, 119 /16s and 67 /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, 393216-399260
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:                    196161
    Total RIPE prefixes after maximum aggregation:                93683
    RIPE Deaggregation factor:                                     2.09
Prefixes being announced from the RIPE address blocks:           192448
    Unique aggregates announced from the RIPE address blocks:    113867
RIPE Region origin ASes present in the Internet Routing Table:    25510
    RIPE Prefixes per ASN:                                         7.54
RIPE Region origin ASes announcing only one prefix:               11484
RIPE Region transit ASes present in the Internet Routing Table:    3525
Average RIPE Region AS path length visible:                         4.1
    Max RIPE Region AS path length visible:                          36
Number of RIPE region 32-bit ASNs visible in the Routing Table:    7425
Number of RIPE addresses announced to Internet:               714730112
    Equivalent to 42 /8s, 153 /16s and 234 /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
                       196608-210331
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:                   93175
    Total LACNIC prefixes after maximum aggregation:              21264
    LACNIC Deaggregation factor:                                   4.38
Prefixes being announced from the LACNIC address blocks:          94556
    Unique aggregates announced from the LACNIC address blocks:   41268
LACNIC Region origin ASes present in the Internet Routing Table:   7590
    LACNIC Prefixes per ASN:                                      12.46
LACNIC Region origin ASes announcing only one prefix:              2081
LACNIC Region transit ASes present in the Internet Routing Table:  1430
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:  5136
Number of LACNIC addresses announced to Internet:             172160544
    Equivalent to 10 /8s, 66 /16s and 246 /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:                  19603
    Total AfriNIC prefixes after maximum aggregation:              4168
    AfriNIC Deaggregation factor:                                  4.70
Prefixes being announced from the AfriNIC address blocks:         24134
    Unique aggregates announced from the AfriNIC address blocks:   8164
AfriNIC Region origin ASes present in the Internet Routing Table:  1202
    AfriNIC Prefixes per ASN:                                     20.08
AfriNIC Region origin ASes announcing only one prefix:              407
AfriNIC Region transit ASes present in the Internet Routing Table:  244
Average AfriNIC Region AS path length visible:                      4.4
    Max AfriNIC Region AS path length visible:                       29
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  473
Number of AfriNIC addresses announced to Internet:            101476864
    Equivalent to 6 /8s, 12 /16s and 106 /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         4632       4192      74  ERX-CERNET-BKB China Education and Rese
  7545         4448        485     476  TPG-INTERNET-AP TPG Telecom Limited, AU
  7552         2981       1153      92  VIETEL-AS-AP Viettel Group, VN
  4766         2822      11130     764  KIXS-AS-KR Korea Telecom, KR
  9829         2807       1495     540  BSNL-NIB National Internet Backbone, IN
 45899         2755       1666     158  VNPT-AS-VN VNPT Corp, VN
  9394         2589       4907      31  CTTNET China TieTong Telecommunications
  9808         2269       8699      26  CMNET-GD Guangdong Mobile Communication
 17974         2251        972      73  TELKOMNET-AS2-AP PT Telekomunikasi Indo
  4755         2126        417     203  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
 11492         3554        233     463  CABLEONE - CABLE ONE, INC., US
  6327         3466       1324      83  SHAW - Shaw Communications Inc., CA
 22773         3239       2971     156  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 16509         2303       5003     804  AMAZON-02 - Amazon.com, Inc., US
 18566         2160        405     109  MEGAPATH5-US - MegaPath Corporation, US
 20115         2155       2741     519  CHARTER-NET-HKY-NC - Charter Communicat
  5650         2082       3074    1461  FRONTIER-FRTR - Frontier Communications
 16625         2056       1094    1530  AKAMAI-AS - Akamai Technologies, Inc., 
 30036         2051        347     130  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
   209         2038       5081     598  CENTURYLINK-US-LEGACY-QWEST - Qwest Com

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         4902       1616     127  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  8551         3056        378      51  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2560        592    1911  AKAMAI-ASN1, US
 12389         2093       2039     676  ROSTELECOM-AS, RU
 34984         2044        337     507  TELLCOM-AS, TR
  9121         1978       1691      17  TTNET, TR
 13188         1602        100      46  TRIOLAN, UA
  8402         1245        544      14  CORBINA-AS OJSC "Vimpelcom", RU
  6849         1241        355      21  UKRTELNET, UA

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         5438       3307     605  Uninet S.A. de C.V., MX
 10620         3195        489     804  Telmex Colombia S.A., CO
 11830         2655        370      81  Instituto Costarricense de Electricidad
  6503         1654        444      66  Axtel, S.A.B. de C.V., MX
  7303         1432        955     206  Telecom Argentina S.A., AR
 28573         1102       2231     193  CLARO S.A., BR
  3816         1014        509     121  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147          963        377      31  Telefonica del Peru S.A.A., PE
 11172          934        144      71  Alestra, S. de R.L. de C.V., MX
 18881          919       1114      28  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         1207        396      48  LINKdotNET-AS, EG
 37611          904        107       9  Afrihost, ZA
 36903          797        400     139  MT-MPLS, MA
 36992          747       1411      41  ETISALAT-MISR, EG
 24835          653        802      18  RAYA-AS, EG
  8452          594       1728      15  TE-AS TE-AS, EG
 37492          464        470      55  ORANGE-, TN
 29571          463         70      11  ORANGE-COTE-IVOIRE, CI
 37342          394         32       1  MOVITEL, MZ
 23889          381        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         5438       3307     605  Uninet S.A. de C.V., MX
 12479         4902       1616     127  UNI2-AS, ES
  4538         4632       4192      74  ERX-CERNET-BKB China Education and Rese
  7545         4448        485     476  TPG-INTERNET-AP TPG Telecom Limited, AU
 39891         3778        203      20  ALJAWWALSTC-AS, SA
 11492         3554        233     463  CABLEONE - CABLE ONE, INC., US
  6327         3466       1324      83  SHAW - Shaw Communications Inc., CA
 22773         3239       2971     156  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 10620         3195        489     804  Telmex Colombia S.A., CO
  8551         3056        378      51  BEZEQ-INTERNATIONAL-AS Bezeqint Interne

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

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

  ASN   No of nets  Net Savings  Description
 12479       4902         4775   UNI2-AS, ES
  4538       4632         4558   ERX-CERNET-BKB China Education and Research Net
  7545       4448         3972   TPG-INTERNET-AP TPG Telecom Limited, AU
 39891       3778         3758   ALJAWWALSTC-AS, SA
  6327       3466         3383   SHAW - Shaw Communications Inc., CA
 11492       3554         3091   CABLEONE - CABLE ONE, INC., US
 22773       3239         3083   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  8551       3056         3005   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  7552       2981         2889   VIETEL-AS-AP Viettel Group, VN
 45899       2755         2597   VNPT-AS-VN VNPT Corp, VN

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

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

Bad AS    Designation  Network              Transit AS  Description
 230105   UNALLOCATED  38.110.79.0/24       23015       CMC180-TOR-AS - Cambridge Merc
  64500   DOCUMENT     45.43.56.0/24        45474       NEXUSGUARD-AS-AP Suite 2101~02
 266842   UNALLOCATED  45.238.156.0/22     265680       HNTELCO S.A, HN
  65001   PRIVATE      46.237.40.0/21       13118       ASN-YARTELECOM PJSC Rostelecom
  64513   PRIVATE      62.150.101.0/24       9155       QNET Kuwait, KW
  64121   UNALLOCATED  98.159.9.0/24        19555       KMI-NETWORK - Kinder Morgan, I
  64121   UNALLOCATED  98.159.12.0/24       19555       KMI-NETWORK - Kinder Morgan, I
  64140   UNALLOCATED  98.159.14.0/24       64121       UNKNOWN
  65001   PRIVATE      109.161.56.0/24      13118       ASN-YARTELECOM PJSC Rostelecom
  64643   PRIVATE      119.44.18.0/24        9394       CTTNET China TieTong Telecommu

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

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

Prefix             Origin AS  Description
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
41.78.92.0/22        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
45.121.32.0/22      134356    UNKNOWN
45.121.136.0/22      22552    ESITED - eSited Solutions, US
45.124.164.0/22      38803    GTELECOM-AUSTRALIA Gtelecom-AUSTRALIA, AU
45.252.236.0/22      38803    GTELECOM-AUSTRALIA Gtelecom-AUSTRALIA, AU
64.28.160.0/20       20475    AS20475 - Global Capacity, LLC, US
64.29.240.0/20       27279    -Reserved AS-, ZZ

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      /11:98      /12:289     
/13:566     /14:1102    /15:1885    /16:13329   /17:7897    /18:13795   
/19:25335   /20:39509   /21:45936   /22:89200   /23:73246   /24:403985  
/25:816     /26:618     /27:628     /28:38      /29:21      /30:21      
/31:4       /32:52      

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

   ASN   No of nets  Total ann.  Description
 12479     3667          4902    UNI2-AS, ES
  6327     3252          3466    SHAW - Shaw Communications Inc., CA
 39891     2946          3778    ALJAWWALSTC-AS, SA
 11492     2806          3554    CABLEONE - CABLE ONE, INC., US
  8551     2512          3056    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773     2501          3239    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 18566     2054          2160    MEGAPATH5-US - MegaPath Corporation, US
 11830     2005          2655    Instituto Costarricense de Electricidad y Telec
 30036     1799          2051    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
  5650     1762          2082    FRONTIER-FRTR - Frontier Communications of Amer

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

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

   1:1599      2:842       4:18        5:2628      6:42        7:1      
   8:1131     12:1867     13:211      14:1817     15:33       16:3      
  17:196      18:55       20:50       23:2495     24:2417     25:2      
  27:2501     31:1988     32:88       35:29       36:536      37:2847   
  38:1538     39:261      40:121      41:3168     42:709      43:1946   
  44:120      45:5631     46:3101     47:216      49:1347     50:1057   
  51:318      52:1086     54:367      55:2        56:12       57:41     
  58:1625     59:989      60:417      61:2087     62:1895     63:1797   
  64:5042     65:2210     66:4827     67:2668     68:1153     69:3365   
  70:1156     71:576      72:2262     74:2723     75:418      76:457    
  77:1640     78:1709     79:2235     80:1567     81:1403     82:1061   
  83:789      84:1046     85:2036     86:560      87:1446     88:954    
  89:2344     90:207      91:6443     92:1297     93:2395     94:2441   
  95:3050     96:931      97:353      98:927      99:140     100:86     
 101:1190    102:233     103:18697   104:3535    105:218     106:769    
 107:1806    108:707     109:3360    110:1656    111:1811    112:1333   
 113:1307    114:1129    115:1674    116:1666    117:1791    118:2208   
 119:1671    120:1081    121:1047    122:2377    123:1644    124:1440   
 125:1932    128:1178    129:690     130:498     131:1608    132:726    
 133:191     134:1032    135:236     136:514     137:663     138:1938   
 139:686     140:548     141:757     142:845     143:1015    144:823    
 145:496     146:1242    147:737     148:1680    149:769     150:764    
 151:988     152:862     153:323     154:1859    155:916     156:1472   
 157:809     158:658     159:1870    160:1470    161:843     162:2663   
 163:617     164:1089    165:1559    166:454     167:1258    168:3154   
 169:854     170:3975    171:497     172:1001    173:2089    174:1000   
 175:806     176:2089    177:4025    178:2517    179:1318    180:2145   
 181:2440    182:2371    183:1275    184:1135    185:14117   186:3590   
 187:2531    188:2910    189:2028    190:8182    191:1397    192:9861   
 193:6276    194:5065    195:4014    196:2778    197:1618    198:5665   
 199:5980    200:7359    201:4978    202:10231   203:10283   204:4608   
 205:3000    206:3219    207:3193    208:3935    209:4095    210:3861   
 211:1997    212:3026    213:2820    214:1044    215:54      216:6028   
 217:2156    218:864     219:569     220:1797    221:1000    222:983    
 223:1390   

End of report


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