[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 21 18:03:43 UTC 2019


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 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 22 Jun, 2019

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

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

BGP routing table entries examined:                              758445
    Prefixes after maximum aggregation (per Origin AS):          292145
    Deaggregation factor:                                          2.60
    Unique aggregates announced (without unneeded subnets):      363811
Total ASes present in the Internet Routing Table:                 64587
    Prefixes per ASN:                                             11.74
Origin-only ASes present in the Internet Routing Table:           55576
Origin ASes announcing only one prefix:                           23900
Transit ASes present in the Internet Routing Table:                9011
Transit-only ASes present in the Internet Routing Table:            266
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      42
    Max AS path prepend of ASN ( 27978)                              31
Prefixes from unregistered ASNs in the Routing Table:                22
    Number of instances of unregistered ASNs:                        25
Number of 32-bit ASNs allocated by the RIRs:                      27493
Number of 32-bit ASNs visible in the Routing Table:               22425
Prefixes from 32-bit ASNs in the Routing Table:                  101104
Number of bogon 32-bit ASNs visible in the Routing Table:            18
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            242
Number of addresses announced to Internet:                   2838596992
    Equivalent to 169 /8s, 49 /16s and 141 /24s
    Percentage of available address space announced:               76.7
    Percentage of allocated address space announced:               76.7
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.3
Total number of prefixes smaller than registry allocations:      251945

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

Prefixes being announced by APNIC Region ASes:                   205491
    Total APNIC prefixes after maximum aggregation:               61201
    APNIC Deaggregation factor:                                    3.36
Prefixes being announced from the APNIC address blocks:          201205
    Unique aggregates announced from the APNIC address blocks:    83664
APNIC Region origin ASes present in the Internet Routing Table:    9827
    APNIC Prefixes per ASN:                                       20.47
APNIC Region origin ASes announcing only one prefix:               2737
APNIC Region transit ASes present in the Internet Routing Table:   1462
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         26
Number of APNIC region 32-bit ASNs visible in the Routing Table:   4828
Number of APNIC addresses announced to Internet:              770999424
    Equivalent to 45 /8s, 244 /16s and 132 /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, 131072-141625
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:                    225662
    Total ARIN prefixes after maximum aggregation:               105372
    ARIN Deaggregation factor:                                     2.14
Prefixes being announced from the ARIN address blocks:           224886
    Unique aggregates announced from the ARIN address blocks:    106070
ARIN Region origin ASes present in the Internet Routing Table:    18506
    ARIN Prefixes per ASN:                                        12.15
ARIN Region origin ASes announcing only one prefix:                6856
ARIN Region transit ASes present in the Internet Routing Table:    1898
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          42
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2765
Number of ARIN addresses announced to Internet:              1068113536
    Equivalent to 63 /8s, 170 /16s and 30 /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,  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:                    208786
    Total RIPE prefixes after maximum aggregation:                98974
    RIPE Deaggregation factor:                                     2.11
Prefixes being announced from the RIPE address blocks:           204774
    Unique aggregates announced from the RIPE address blocks:    121776
RIPE Region origin ASes present in the Internet Routing Table:    26164
    RIPE Prefixes per ASN:                                         7.83
RIPE Region origin ASes announcing only one prefix:               11575
RIPE Region transit ASes present in the Internet Routing Table:    3723
Average RIPE Region AS path length visible:                         4.6
    Max RIPE Region AS path length visible:                          34
Number of RIPE region 32-bit ASNs visible in the Routing Table:    8194
Number of RIPE addresses announced to Internet:               719883904
    Equivalent to 42 /8s, 232 /16s and 142 /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:                   97229
    Total LACNIC prefixes after maximum aggregation:              22245
    LACNIC Deaggregation factor:                                   4.37
Prefixes being announced from the LACNIC address blocks:          98563
    Unique aggregates announced from the LACNIC address blocks:   42861
LACNIC Region origin ASes present in the Internet Routing Table:   8529
    LACNIC Prefixes per ASN:                                      11.56
LACNIC Region origin ASes announcing only one prefix:              2286
LACNIC Region transit ASes present in the Internet Routing Table:  1555
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        39
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  6078
Number of LACNIC addresses announced to Internet:             174020608
    Equivalent to 10 /8s, 95 /16s and 88 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-270748 + 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:                  21254
    Total AfriNIC prefixes after maximum aggregation:              4335
    AfriNIC Deaggregation factor:                                  4.90
Prefixes being announced from the AfriNIC address blocks:         28775
    Unique aggregates announced from the AfriNIC address blocks:   9227
AfriNIC Region origin ASes present in the Internet Routing Table:  1280
    AfriNIC Prefixes per ASN:                                     22.48
AfriNIC Region origin ASes announcing only one prefix:              446
AfriNIC Region transit ASes present in the Internet Routing Table:  253
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  560
Number of AfriNIC addresses announced to Internet:            105327104
    Equivalent to 6 /8s, 71 /16s and 42 /24s
AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8,  45/8, 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
  7545         4773        549     540  TPG-INTERNET-AP TPG Telecom Limited, AU
  7552         3209       1467      29  VIETEL-AS-AP Viettel Group, VN
 45899         3045       1757     114  VNPT-AS-VN VNPT Corp, VN
  9808         2813       9043      62  CMNET-GD Guangdong Mobile Communication
  9829         2693       1490     563  BSNL-NIB National Internet Backbone, IN
  4766         2526      11119     760  KIXS-AS-KR Korea Telecom, KR
  4755         2137        428     181  TATACOMM-AS TATA Communications formerl
  9394         2100       4882      26  CTTNET China TieTong Telecommunications
  9498         2074        427     171  BBIL-AP BHARTI Airtel Ltd., IN
  7713         1872        560     663  TELKOMNET-AS-AP PT Telekomunikasi Indon

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
  7155         4064        280      25  VIASAT-SP-BACKBONE - ViaSat,Inc., US
 11492         3674        240     624  CABLEONE - CABLE ONE, INC., US
  6327         3603       1324      89  SHAW - Shaw Communications Inc., CA
 22773         3421       2974     156  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 16509         2927       6366    1296  AMAZON-02 - Amazon.com, Inc., US
 16625         2497       1364    1874  AKAMAI-AS - Akamai Technologies, Inc., 
 30036         2175        349     160  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
 20115         2151       2760     526  CHARTER-20115 - Charter Communications,
 18566         2095        405     107  MEGAPATH5-US - MegaPath Corporation, US
  5650         2085       3074    1461  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         5439       1629     141  UNI2-AS, ES
 39891         3517        186      20  ALJAWWALSTC-AS, SA
  8551         3175        379      46  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2688        513    1933  AKAMAI-ASN1, US
 12389         2248       2225     636  ROSTELECOM-AS, RU
 34984         2094        344     545  TELLCOM-AS, TR
  9121         1647       1692      18  TTNET, TR
 13188         1604        100      47  TRIOLAN, UA
  9009         1556        169     857  M247, GB
 61317         1489        147     429  ASDETUK http://www.heficed.com, GB

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         6143       3367     570  Uninet S.A. de C.V., MX
 10620         3416        534     431  Telmex Colombia S.A., CO
 11830         2706        370      54  Instituto Costarricense de Electricidad
  7303         1476       1022     275  Telecom Argentina S.A., AR
  6503         1216        441      54  Axtel, S.A.B. de C.V., MX
 28573         1135       2242     204  CLARO S.A., BR
  6147         1079        377      31  Telefonica del Peru S.A.A., PE
  3816         1038        523     117  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 13999         1005        516     241  Mega Cable, S.A. de C.V., MX
 11172          938        128      62  Alestra, S. de R.L. de C.V., MX

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         1166        393      22  LINKdotNET-AS, EG
 37611          969        107       9  Afrihost, ZA
 24835          881        624      21  RAYA-AS, EG
 36992          855       1536      70  ETISALAT-MISR, EG
 36903          833        419     127  MT-MPLS, MA
  8452          674       1731      19  TE-AS TE-AS, EG
 29571          515         68      11  ORANGE-COTE-IVOIRE, CI
 37492          471        470      57  ORANGE-, TN
 37342          414         32       1  MOVITEL, MZ
 15399          387         45      11  WANANCHI-, KE

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         6143       3367     570  Uninet S.A. de C.V., MX
 12479         5439       1629     141  UNI2-AS, ES
  7545         4773        549     540  TPG-INTERNET-AP TPG Telecom Limited, AU
  7155         4064        280      25  VIASAT-SP-BACKBONE - ViaSat,Inc., US
 11492         3674        240     624  CABLEONE - CABLE ONE, INC., US
  6327         3603       1324      89  SHAW - Shaw Communications Inc., CA
 39891         3517        186      20  ALJAWWALSTC-AS, SA
 22773         3421       2974     156  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 10620         3416        534     431  Telmex Colombia S.A., CO
  7552         3209       1467      29  VIETEL-AS-AP Viettel Group, VN

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       5439         5298   UNI2-AS, ES
  7545       4773         4233   TPG-INTERNET-AP TPG Telecom Limited, AU
  7155       4064         4039   VIASAT-SP-BACKBONE - ViaSat,Inc., US
  6327       3603         3514   SHAW - Shaw Communications Inc., CA
 39891       3517         3497   ALJAWWALSTC-AS, SA
 22773       3421         3265   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  7552       3209         3180   VIETEL-AS-AP Viettel Group, VN
  8551       3175         3129   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11492       3674         3050   CABLEONE - CABLE ONE, INC., US
 10620       3416         2985   Telmex Colombia S.A., CO

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
 267804   UNALLOCATED  45.172.108.0/22      52361       ARSAT - Empresa Argentina de S
 266842   UNALLOCATED  45.238.156.0/22     265680       HNTELCO S.A, HN
  65550   DOCUMENT     81.8.34.0/24         15924       BORUSANTELEKOM-AS, TR
  65550   DOCUMENT     81.8.35.0/24         15924       BORUSANTELEKOM-AS, TR
  65549   DOCUMENT     117.239.163.0/24     65544       UNKNOWN
  64339   UNALLOCATED  143.0.108.0/22       18747       IFX18747 - IFX Corporation, US
  64355   UNALLOCATED  156.40.196.0/24      30387       NIH-NET-NCCS - National Instit
  64011   UNALLOCATED  166.133.128.0/18     20057       ATT-MOBILITY-LLC-AS20057 - AT&
  64011   UNALLOCATED  166.133.192.0/18     20057       ATT-MOBILITY-LLC-AS20057 - AT&

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

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

Network            Origin AS  Description
27.100.7.0/24        56096    UNKNOWN
27.126.156.0/22      55827    UNKNOWN
27.126.156.0/23      55827    UNKNOWN
27.126.158.0/23      55827    UNKNOWN
41.76.136.0/22       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
41.220.48.0/20       36900    -Reserved AS-, ZZ
41.242.92.0/24       37643    -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        /8:10       /9:11      /10:37      /11:100     /12:294     
/13:568     /14:1129    /15:1912    /16:13278   /17:8015    /18:13960   
/19:25803   /20:40256   /21:47442   /22:94899   /23:76751   /24:433092  
/25:888     /26:0       /27:0       /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN   No of nets  Total ann.  Description
 12479     4392          5439    UNI2-AS, ES
  6327     3393          3603    SHAW - Shaw Communications Inc., CA
  7155     3156          4064    VIASAT-SP-BACKBONE - ViaSat,Inc., US
 11492     2878          3674    CABLEONE - CABLE ONE, INC., US
 39891     2689          3517    ALJAWWALSTC-AS, SA
 22773     2656          3421    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  8551     2628          3175    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11830     2051          2706    Instituto Costarricense de Electricidad y Telec
 18566     1990          2095    MEGAPATH5-US - MegaPath Corporation, US
 30036     1926          2175    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi

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

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

   1:1687      2:1041      3:6         4:21        5:2926      6:47     
   7:1         8:1346      9:1        11:1        12:1804     13:354    
  14:2047     15:38       16:6        17:257      18:74       20:55     
  23:2754     24:2554     25:4        27:2453     31:2024     32:100    
  35:36       36:874      37:3030     38:1767     39:279      40:122    
  41:3186     42:821      43:2059     44:149      45:8415     46:3311   
  47:260      49:1359     50:1112     51:330      52:1018     54:281    
  55:709      56:6        57:47       58:1764     59:1070     60:530    
  61:2196     62:1969     63:1845     64:5000     65:2202     66:4840   
  67:2775     68:1176     69:3555     70:1369     71:649      72:2623   
  74:2724     75:1294     76:558      77:1801     78:1826     79:2373   
  80:1826     81:1481     82:1134     83:914      84:1131     85:2284   
  86:557      87:1538     88:1046     89:2548     90:214      91:6585   
  92:1434     93:2472     94:2471     95:3294     96:946      97:343    
  98:959      99:780     100:86      101:1183    102:633     103:21476  
 104:3552    105:270     106:780     107:1762    108:695     109:3632   
 110:1719    111:2050    112:1533    113:1387    114:1238    115:1733   
 116:1761    117:1914    118:2140    119:1651    120:1050    121:1049   
 122:2242    123:1774    124:1493    125:2016    128:1328    129:833    
 130:539     131:1818    132:818     133:221     134:1099    135:252    
 136:592     137:781     138:2065    139:886     140:599     141:893    
 142:799     143:1079    144:896     145:276     146:1296    147:830    
 148:1691    149:1102    150:780     151:1013    152:1090    153:338    
 154:4084    155:910     156:1620    157:1019    158:658     159:1946   
 160:1601    161:938     162:2970    163:832     164:1249    165:1608   
 166:476     167:1418    168:3293    169:890     170:4202    171:607    
 172:1653    173:2234    174:1045    175:977     176:2367    177:4105   
 178:2549    179:1377    180:2164    181:2379    182:2721    183:1086   
 184:2250    185:15267   186:3636    187:2482    188:2957    189:2012   
 190:8206    191:1447    192:10053   193:6729    194:5480    195:4144   
 196:3117    197:1592    198:5955    199:5968    200:7119    201:5112   
 202:10427   203:10208   204:4547    205:3074    206:3247    207:3232   
 208:3932    209:4280    210:3942    211:2045    212:3120    213:2955   
 214:1116    215:55      216:5872    217:2223    218:890     219:602    
 220:1887    221:975     222:978     223:1380   

End of report


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