Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Sep 14 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 15 Sep, 2018

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

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

BGP routing table entries examined:                              715632
    Prefixes after maximum aggregation (per Origin AS):          274995
    Deaggregation factor:                                          2.60
    Unique aggregates announced (without unneeded subnets):      343809
Total ASes present in the Internet Routing Table:                 61843
    Prefixes per ASN:                                             11.57
Origin-only ASes present in the Internet Routing Table:           53396
Origin ASes announcing only one prefix:                           23286
Transit ASes present in the Internet Routing Table:                8447
Transit-only ASes present in the Internet Routing Table:            259
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:                69
    Number of instances of unregistered ASNs:                        69
Number of 32-bit ASNs allocated by the RIRs:                      24086
Number of 32-bit ASNs visible in the Routing Table:               19447
Prefixes from 32-bit ASNs in the Routing Table:                   81493
Number of bogon 32-bit ASNs visible in the Routing Table:            25
Special use prefixes present in the Routing Table:                    2
Prefixes being announced from unallocated address space:            324
Number of addresses announced to Internet:                   2853242180
    Equivalent to 170 /8s, 17 /16s and 5 /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:      239222

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

Prefixes being announced by APNIC Region ASes:                   195042
    Total APNIC prefixes after maximum aggregation:               55503
    APNIC Deaggregation factor:                                    3.51
Prefixes being announced from the APNIC address blocks:          193100
    Unique aggregates announced from the APNIC address blocks:    79556
APNIC Region origin ASes present in the Internet Routing Table:    9093
    APNIC Prefixes per ASN:                                       21.24
APNIC Region origin ASes announcing only one prefix:               2555
APNIC Region transit ASes present in the Internet Routing Table:   1365
Average APNIC Region AS path length visible:                        4.0
    Max APNIC Region AS path length visible:                         31
Number of APNIC region 32-bit ASNs visible in the Routing Table:   4053
Number of APNIC addresses announced to Internet:              768098051
    Equivalent to 45 /8s, 200 /16s and 63 /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:                    212696
    Total ARIN prefixes after maximum aggregation:               100695
    ARIN Deaggregation factor:                                     2.11
Prefixes being announced from the ARIN address blocks:           212454
    Unique aggregates announced from the ARIN address blocks:    100997
ARIN Region origin ASes present in the Internet Routing Table:    18246
    ARIN Prefixes per ASN:                                        11.64
ARIN Region origin ASes announcing only one prefix:                6772
ARIN Region transit ASes present in the Internet Routing Table:    1809
Average ARIN Region AS path length visible:                         3.6
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2431
Number of ARIN addresses announced to Internet:              1097187744
    Equivalent to 65 /8s, 101 /16s and 193 /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:                    195831
    Total RIPE prefixes after maximum aggregation:                93419
    RIPE Deaggregation factor:                                     2.10
Prefixes being announced from the RIPE address blocks:           192076
    Unique aggregates announced from the RIPE address blocks:    113790
RIPE Region origin ASes present in the Internet Routing Table:    25466
    RIPE Prefixes per ASN:                                         7.54
RIPE Region origin ASes announcing only one prefix:               11474
RIPE Region transit ASes present in the Internet Routing Table:    3521
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:    7397
Number of RIPE addresses announced to Internet:               714375296
    Equivalent to 42 /8s, 148 /16s and 128 /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:                   92435
    Total LACNIC prefixes after maximum aggregation:              21188
    LACNIC Deaggregation factor:                                   4.36
Prefixes being announced from the LACNIC address blocks:          93843
    Unique aggregates announced from the LACNIC address blocks:   41083
LACNIC Region origin ASes present in the Internet Routing Table:   7551
    LACNIC Prefixes per ASN:                                      12.43
LACNIC Region origin ASes announcing only one prefix:              2079
LACNIC Region transit ASes present in the Internet Routing Table:  1421
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        26
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  5095
Number of LACNIC addresses announced to Internet:             172151840
    Equivalent to 10 /8s, 66 /16s and 212 /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:                  19558
    Total AfriNIC prefixes after maximum aggregation:              4129
    AfriNIC Deaggregation factor:                                  4.74
Prefixes being announced from the AfriNIC address blocks:         23835
    Unique aggregates announced from the AfriNIC address blocks:   8111
AfriNIC Region origin ASes present in the Internet Routing Table:  1201
    AfriNIC Prefixes per ASN:                                     19.85
AfriNIC Region origin ASes announcing only one prefix:              406
AfriNIC Region transit ASes present in the Internet Routing Table:  240
Average AfriNIC Region AS path length visible:                      4.4
    Max AfriNIC Region AS path length visible:                       26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  471
Number of AfriNIC addresses announced to Internet:            100971520
    Equivalent to 6 /8s, 4 /16s and 180 /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         4435        483     475  TPG-INTERNET-AP TPG Telecom Limited, AU
  7552         2988       1154      90  VIETEL-AS-AP Viettel Group, VN
  9829         2811       1495     540  BSNL-NIB National Internet Backbone, IN
  4766         2804      11135     772  KIXS-AS-KR Korea Telecom, KR
 45899         2746       1658     158  VNPT-AS-VN VNPT Corp, VN
  9394         2610       4907      31  CTTNET China TieTong Telecommunications
  9808         2264       8699      26  CMNET-GD Guangdong Mobile Communication
 17974         2256        962      71  TELKOMNET-AS2-AP PT Telekomunikasi Indo
  4755         2121        417     204  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         3467       1324      84  SHAW - Shaw Communications Inc., CA
 11492         3404        236     494  CABLEONE - CABLE ONE, INC., US
 22773         3237       2971     155  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 16509         2285       4938     793  AMAZON-02 - Amazon.com, Inc., US
 18566         2165        405     109  MEGAPATH5-US - MegaPath Corporation, US
 20115         2157       2741     512  CHARTER-NET-HKY-NC - Charter Communicat
 30036         2043        347     135  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
   209         2040       5084     603  CENTURYLINK-US-LEGACY-QWEST - Qwest Com
 16625         1980       1056    1472  AKAMAI-AS - Akamai Technologies, Inc., 
  5650         1887       3224    1320  FRONTIER-FRTR - Frontier Communications

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         4853       1616     127  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  8551         3062        378      44  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2567        618    1912  AKAMAI-ASN1, US
 12389         2049       1919     729  ROSTELECOM-AS, RU
 34984         2036        336     508  TELLCOM-AS, TR
  9121         1866       1691      17  TTNET, TR
 13188         1604        100      43  TRIOLAN, UA
  8402         1255        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         5275       3339     600  Uninet S.A. de C.V., MX
 10620         3221        493     777  Telmex Colombia S.A., CO
 11830         2654        370      81  Instituto Costarricense de Electricidad
  6503         1654        444      66  Axtel, S.A.B. de C.V., MX
  7303         1431        954     205  Telecom Argentina S.A., AR
 28573         1094       2231     192  CLARO S.A., BR
  3816         1016        509     121  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147          937        377      31  Telefonica del Peru S.A.A., PE
 11172          933        128      70  Alestra, S. de R.L. de C.V., MX
 18881          917       1098      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         1195        396      48  LINKdotNET-AS, EG
 37611          901        107       9  Afrihost, ZA
 36903          778        391     137  MT-MPLS, MA
 36992          750       1411      41  ETISALAT-MISR, EG
 24835          643        818      18  RAYA-AS, EG
  8452          602       1728      14  TE-AS TE-AS, EG
 37492          473        470      57  ORANGE-, TN
 29571          463         70      11  ORANGE-COTE-IVOIRE, CI
 37342          386         32       1  MOVITEL, MZ
 23889          376        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         5275       3339     600  Uninet S.A. de C.V., MX
 12479         4853       1616     127  UNI2-AS, ES
  4538         4632       4192      74  ERX-CERNET-BKB China Education and Rese
  7545         4435        483     475  TPG-INTERNET-AP TPG Telecom Limited, AU
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  6327         3467       1324      84  SHAW - Shaw Communications Inc., CA
 11492         3404        236     494  CABLEONE - CABLE ONE, INC., US
 22773         3237       2971     155  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 10620         3221        493     777  Telmex Colombia S.A., CO
  8551         3062        378      44  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       4853         4726   UNI2-AS, ES
  4538       4632         4558   ERX-CERNET-BKB China Education and Research Net
  7545       4435         3960   TPG-INTERNET-AP TPG Telecom Limited, AU
 39891       3778         3758   ALJAWWALSTC-AS, SA
  6327       3467         3383   SHAW - Shaw Communications Inc., CA
 22773       3237         3082   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  8551       3062         3018   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11492       3404         2910   CABLEONE - CABLE ONE, INC., US
  7552       2988         2898   VIETEL-AS-AP Viettel Group, VN
 45899       2746         2588   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
 266842   UNALLOCATED  45.238.156.0/22     265680       HNTELCO S.A, HN
  65001   PRIVATE      46.237.40.0/21       13118       ASN-YARTELECOM PJSC Rostelecom
4200003000   PRIVATE      47.89.98.0/24        45102       CNNIC-ALIBABA-CN-NET-AP Alibab
  64513   PRIVATE      62.150.101.0/24       9155       QNET Kuwait, KW
  65537   DOCUMENT     62.162.120.0/24       6821       MT-AS-OWN bul. Orce Nikolov bb
 419333   UNALLOCATED  84.17.91.0/24        41933       IPRAGAZ-AS Istanbul/ TURKEY, T
  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

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
41.76.140.0/24       37500    -Reserved AS-, ZZ
41.76.141.0/24       37500    -Reserved AS-, ZZ
41.76.142.0/24       37500    -Reserved AS-, ZZ
41.76.143.0/24       37500    -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     
/13:564     /14:1097    /15:1889    /16:13340   /17:7916    /18:13812   
/19:25359   /20:39533   /21:45768   /22:88785   /23:72679   /24:402263  
/25:802     /26:612     /27:633     /28:36      /29:21      /30:19      
/31:4       /32:52      

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

   ASN   No of nets  Total ann.  Description
 12479     3602          4853    UNI2-AS, ES
  6327     3255          3467    SHAW - Shaw Communications Inc., CA
 39891     2946          3778    ALJAWWALSTC-AS, SA
 11492     2714          3404    CABLEONE - CABLE ONE, INC., US
  8551     2524          3062    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773     2501          3237    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 18566     2059          2165    MEGAPATH5-US - MegaPath Corporation, US
 11830     2004          2654    Instituto Costarricense de Electricidad y Telec
 30036     1791          2043    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
  5650     1554          1887    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)
----------------------------------------------

   1:1594      2:844       4:18        5:2817      6:44        7:1      
   8:1134     12:1868     13:211      14:1813     15:34       16:3      
  17:196      18:55       20:50       23:2450     24:2357     25:2      
  27:2481     31:1978     32:88       35:29       36:535      37:2841   
  38:1533     39:261      40:112      41:3234     42:708      43:1940   
  44:115      45:5481     46:3116     47:211      49:1347     50:1053   
  51:318      52:1087     54:367      55:1        56:8        57:38     
  58:1622     59:992      60:410      61:2114     62:1899     63:1799   
  64:5050     65:2219     66:4698     67:2652     68:1153     69:3366   
  70:1157     71:576      72:2218     74:2727     75:417      76:457    
  77:1635     78:1715     79:2237     80:1572     81:1398     82:1061   
  83:787      84:1038     85:2015     86:569      87:1419     88:926    
  89:2343     90:211      91:6433     92:1263     93:2384     94:2449   
  95:3002     96:933      97:355      98:928      99:138     100:86     
 101:1189    102:203     103:18653   104:3533    105:218     106:762    
 107:1797    108:709     109:3323    110:1647    111:1793    112:1342   
 113:1305    114:1143    115:1674    116:1657    117:1777    118:2206   
 119:1662    120:1042    121:1046    122:2424    123:1645    124:1420   
 125:1927    128:1122    129:677     130:492     131:1622    132:728    
 133:191     134:1030    135:236     136:502     137:654     138:1941   
 139:680     140:484     141:746     142:842     143:1034    144:819    
 145:481     146:1249    147:740     148:1670    149:769     150:761    
 151:1099    152:841     153:324     154:1703    155:804     156:1447   
 157:804     158:660     159:1849    160:1389    161:830     162:2662   
 163:607     164:1084    165:1551    166:454     167:1215    168:3211   
 169:846     170:3988    171:494     172:1003    173:2098    174:992    
 175:803     176:2077    177:3924    178:2519    179:1259    180:2183   
 181:2417    182:2579    183:1253    184:1078    185:14086   186:3555   
 187:2502    188:2898    189:1999    190:8207    191:1386    192:9832   
 193:6163    194:5032    195:4001    196:2728    197:1606    198:5596   
 199:5948    200:7332    201:4973    202:10240   203:10288   204:4589   
 205:2872    206:3224    207:3195    208:3921    209:4085    210:3892   
 211:1998    212:3022    213:2821    214:1047    215:54      216:6025   
 217:2128    218:866     219:566     220:1797    221:999     222:988    
 223:1392   

End of report


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