Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 14 18:03:56 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 15 Jun, 2019

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

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

BGP routing table entries examined:                              758444
    Prefixes after maximum aggregation (per Origin AS):          291554
    Deaggregation factor:                                          2.60
    Unique aggregates announced (without unneeded subnets):      363187
Total ASes present in the Internet Routing Table:                 64519
    Prefixes per ASN:                                             11.76
Origin-only ASes present in the Internet Routing Table:           55510
Origin ASes announcing only one prefix:                           23876
Transit ASes present in the Internet Routing Table:                9009
Transit-only ASes present in the Internet Routing Table:            275
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:                30
    Number of instances of unregistered ASNs:                        33
Number of 32-bit ASNs allocated by the RIRs:                      27377
Number of 32-bit ASNs visible in the Routing Table:               22361
Prefixes from 32-bit ASNs in the Routing Table:                  100529
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:            304
Number of addresses announced to Internet:                   2838120576
    Equivalent to 169 /8s, 42 /16s and 72 /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:      252304

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

Prefixes being announced by APNIC Region ASes:                   205191
    Total APNIC prefixes after maximum aggregation:               61042
    APNIC Deaggregation factor:                                    3.36
Prefixes being announced from the APNIC address blocks:          201129
    Unique aggregates announced from the APNIC address blocks:    83479
APNIC Region origin ASes present in the Internet Routing Table:    9812
    APNIC Prefixes per ASN:                                       20.50
APNIC Region origin ASes announcing only one prefix:               2730
APNIC Region transit ASes present in the Internet Routing Table:   1468
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:   4816
Number of APNIC addresses announced to Internet:              770826880
    Equivalent to 45 /8s, 241 /16s and 226 /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:                    225787
    Total ARIN prefixes after maximum aggregation:               105159
    ARIN Deaggregation factor:                                     2.15
Prefixes being announced from the ARIN address blocks:           224800
    Unique aggregates announced from the ARIN address blocks:    106036
ARIN Region origin ASes present in the Internet Routing Table:    18492
    ARIN Prefixes per ASN:                                        12.16
ARIN Region origin ASes announcing only one prefix:                6846
ARIN Region transit ASes present in the Internet Routing Table:    1900
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:    2744
Number of ARIN addresses announced to Internet:              1067901568
    Equivalent to 63 /8s, 166 /16s and 226 /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:                    208681
    Total RIPE prefixes after maximum aggregation:                98856
    RIPE Deaggregation factor:                                     2.11
Prefixes being announced from the RIPE address blocks:           204813
    Unique aggregates announced from the RIPE address blocks:    121383
RIPE Region origin ASes present in the Internet Routing Table:    26135
    RIPE Prefixes per ASN:                                         7.84
RIPE Region origin ASes announcing only one prefix:               11587
RIPE Region transit ASes present in the Internet Routing Table:    3719
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:    8181
Number of RIPE addresses announced to Internet:               719856512
    Equivalent to 42 /8s, 232 /16s and 35 /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:                   97416
    Total LACNIC prefixes after maximum aggregation:              22149
    LACNIC Deaggregation factor:                                   4.40
Prefixes being announced from the LACNIC address blocks:          98762
    Unique aggregates announced from the LACNIC address blocks:   42865
LACNIC Region origin ASes present in the Internet Routing Table:   8500
    LACNIC Prefixes per ASN:                                      11.62
LACNIC Region origin ASes announcing only one prefix:              2265
LACNIC Region transit ASes present in the Internet Routing Table:  1551
Average LACNIC Region AS path length visible:                       5.4
    Max LACNIC Region AS path length visible:                        39
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  6053
Number of LACNIC addresses announced to Internet:             174023168
    Equivalent to 10 /8s, 95 /16s and 98 /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:                  21338
    Total AfriNIC prefixes after maximum aggregation:              4328
    AfriNIC Deaggregation factor:                                  4.93
Prefixes being announced from the AfriNIC address blocks:         28636
    Unique aggregates announced from the AfriNIC address blocks:   9192
AfriNIC Region origin ASes present in the Internet Routing Table:  1288
    AfriNIC Prefixes per ASN:                                     22.23
AfriNIC Region origin ASes announcing only one prefix:              448
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:                       23
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  567
Number of AfriNIC addresses announced to Internet:            105251840
    Equivalent to 6 /8s, 70 /16s and 4 /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         4757        549     543  TPG-INTERNET-AP TPG Telecom Limited, AU
  7552         3203       1451      30  VIETEL-AS-AP Viettel Group, VN
 45899         3044       1757     114  VNPT-AS-VN VNPT Corp, VN
  9808         2800       9043      62  CMNET-GD Guangdong Mobile Communication
  9829         2736       1496     552  BSNL-NIB National Internet Backbone, IN
  4766         2529      11119     759  KIXS-AS-KR Korea Telecom, KR
  4755         2141        428     182  TATACOMM-AS TATA Communications formerl
  9394         2088       4882      26  CTTNET China TieTong Telecommunications
  9498         2069        427     170  BBIL-AP BHARTI Airtel Ltd., IN
 23969         1780        314      16  TOT-NET TOT Public Company Limited, TH

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         3652        238     607  CABLEONE - CABLE ONE, INC., US
  6327         3614       1324      89  SHAW - Shaw Communications Inc., CA
 22773         3415       2974     156  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 16509         2871       6294    1257  AMAZON-02 - Amazon.com, Inc., US
 16625         2488       1359    1868  AKAMAI-AS - Akamai Technologies, Inc., 
 30036         2167        348     173  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
 20115         2150       2760     525  CHARTER-20115 - Charter Communications,
 18566         2094        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         5436       1629     141  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  8551         3170        379      46  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2674        511    1928  AKAMAI-ASN1, US
 12389         2247       2225     635  ROSTELECOM-AS, RU
 34984         2099        346     548  TELLCOM-AS, TR
  9121         1653       1692      18  TTNET, TR
 13188         1604        100      47  TRIOLAN, UA
  9009         1539        164     843  M247, GB
 61317         1488        147     422  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         5999       3395     578  Uninet S.A. de C.V., MX
 10620         3415        534     434  Telmex Colombia S.A., CO
 11830         2704        370      56  Instituto Costarricense de Electricidad
  7303         1482       1024     266  Telecom Argentina S.A., AR
 28573         1456       2240     204  CLARO S.A., BR
  6503         1252        441      54  Axtel, S.A.B. de C.V., MX
  6147         1085        377      31  Telefonica del Peru S.A.A., PE
  3816         1035        521     115  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 13999          999        514     235  Mega Cable, S.A. de C.V., MX
 11172          937        128      61  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         1165        393      21  LINKdotNET-AS, EG
 37611          968        107       9  Afrihost, ZA
 24835          882        624      21  RAYA-AS, EG
 36992          859       1536      70  ETISALAT-MISR, EG
 36903          827        416     126  MT-MPLS, MA
  8452          671       1731      19  TE-AS TE-AS, EG
 29571          516         68      11  ORANGE-COTE-IVOIRE, CI
 37492          471        470      57  ORANGE-, TN
 37342          414         32       1  MOVITEL, MZ
 15399          404         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         5999       3395     578  Uninet S.A. de C.V., MX
 12479         5436       1629     141  UNI2-AS, ES
  7545         4757        549     543  TPG-INTERNET-AP TPG Telecom Limited, AU
  7155         4064        280      25  VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891         3778        203      20  ALJAWWALSTC-AS, SA
 11492         3652        238     607  CABLEONE - CABLE ONE, INC., US
  6327         3614       1324      89  SHAW - Shaw Communications Inc., CA
 10620         3415        534     434  Telmex Colombia S.A., CO
 22773         3415       2974     156  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  7552         3203       1451      30  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       5436         5295   UNI2-AS, ES
  7545       4757         4214   TPG-INTERNET-AP TPG Telecom Limited, AU
  7155       4064         4039   VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891       3778         3758   ALJAWWALSTC-AS, SA
  6327       3614         3525   SHAW - Shaw Communications Inc., CA
 22773       3415         3259   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  7552       3203         3173   VIETEL-AS-AP Viettel Group, VN
  8551       3170         3124   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11492       3652         3045   CABLEONE - CABLE ONE, INC., US
 10620       3415         2981   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
 269037   UNALLOCATED  45.178.112.0/22     268224       UNKNOWN
 269037   UNALLOCATED  45.178.112.0/23     268224       UNKNOWN
 269037   UNALLOCATED  45.178.112.0/24     268224       UNKNOWN
 269037   UNALLOCATED  45.178.113.0/24     268224       UNKNOWN
 269037   UNALLOCATED  45.178.114.0/23     268224       UNKNOWN
 269037   UNALLOCATED  45.178.114.0/24     268224       UNKNOWN
 269037   UNALLOCATED  45.178.115.0/24     268224       UNKNOWN
 266842   UNALLOCATED  45.238.156.0/22     265680       HNTELCO S.A, HN

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     
/13:569     /14:1129    /15:1913    /16:13268   /17:8007    /18:13967   
/19:25845   /20:40353   /21:47462   /22:94847   /23:76783   /24:432913  
/25:936     /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     4390          5436    UNI2-AS, ES
  6327     3404          3614    SHAW - Shaw Communications Inc., CA
  7155     3156          4064    VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891     2946          3778    ALJAWWALSTC-AS, SA
 11492     2859          3652    CABLEONE - CABLE ONE, INC., US
 22773     2652          3415    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  8551     2623          3170    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11830     2049          2704    Instituto Costarricense de Electricidad y Telec
 18566     1989          2094    MEGAPATH5-US - MegaPath Corporation, US
 30036     1918          2167    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)
----------------------------------------------

   1:1689      2:1033      3:6         4:21        5:3164      6:47     
   7:1         8:1328      9:1        11:1        12:1795     13:350    
  14:2047     15:37       16:6        17:255      18:74       20:52     
  23:2737     24:2561     25:4        27:2444     31:2011     32:98     
  35:36       36:866      37:3033     38:1757     39:279      40:123    
  41:3168     42:816      43:2052     44:149      45:8314     46:3316   
  47:263      49:1356     50:1105     51:331      52:1015     54:283    
  55:710      56:6        57:47       58:1763     59:1075     60:524    
  61:2188     62:1964     63:1834     64:4985     65:2197     66:4838   
  67:2775     68:1164     69:3546     70:1368     71:642      72:2628   
  74:2727     75:1293     76:557      77:1785     78:1831     79:2307   
  80:1799     81:1495     82:1132     83:922      84:1132     85:2279   
  86:555      87:1544     88:1045     89:2531     90:215      91:6588   
  92:1423     93:2469     94:2462     95:3304     96:950      97:343    
  98:959      99:774     100:86      101:1173    102:626     103:21432  
 104:3550    105:265     106:777     107:1758    108:694     109:3682   
 110:1703    111:2038    112:1532    113:1369    114:1233    115:1738   
 116:1754    117:1913    118:2140    119:1647    120:1050    121:1049   
 122:2282    123:1764    124:1497    125:2014    128:1309    129:827    
 130:536     131:1822    132:824     133:222     134:1098    135:245    
 136:582     137:776     138:2068    139:888     140:600     141:884    
 142:804     143:1077    144:900     145:491     146:1286    147:825    
 148:1689    149:1093    150:792     151:1009    152:1087    153:333    
 154:3883    155:916     156:1673    157:1022    158:659     159:1954   
 160:1600    161:939     162:2958    163:831     164:1238    165:1606   
 166:476     167:1412    168:3292    169:896     170:4188    171:600    
 172:1654    173:2235    174:1047    175:975     176:2367    177:4095   
 178:2549    179:1398    180:2158    181:2396    182:2716    183:1087   
 184:2259    185:15202   186:3642    187:2500    188:2979    189:2006   
 190:8212    191:1500    192:10061   193:6701    194:5467    195:4147   
 196:3125    197:1610    198:5931    199:5970    200:7150    201:5127   
 202:10465   203:10213   204:4541    205:3070    206:3230    207:3237   
 208:3949    209:4284    210:3931    211:2017    212:3107    213:2938   
 214:1112    215:55      216:5895    217:2238    218:873     219:605    
 220:1882    221:975     222:979     223:1376   

End of report



More information about the NANOG mailing list