[menog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri May 17 18:02:38 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 18 May, 2019

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

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

BGP routing table entries examined:                              754540
    Prefixes after maximum aggregation (per Origin AS):          289575
    Deaggregation factor:                                          2.61
    Unique aggregates announced (without unneeded subnets):      360661
Total ASes present in the Internet Routing Table:                 64226
    Prefixes per ASN:                                             11.75
Origin-only ASes present in the Internet Routing Table:           55252
Origin ASes announcing only one prefix:                           23799
Transit ASes present in the Internet Routing Table:                8974
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:                                      34
    Max AS path prepend of ASN (  8697)                              27
Prefixes from unregistered ASNs in the Routing Table:                26
    Number of instances of unregistered ASNs:                        30
Number of 32-bit ASNs allocated by the RIRs:                      27012
Number of 32-bit ASNs visible in the Routing Table:               22035
Prefixes from 32-bit ASNs in the Routing Table:                   98302
Number of bogon 32-bit ASNs visible in the Routing Table:            23
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            243
Number of addresses announced to Internet:                   2850395904
    Equivalent to 169 /8s, 229 /16s and 151 /24s
    Percentage of available address space announced:               77.0
    Percentage of allocated address space announced:               77.0
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.2
Total number of prefixes smaller than registry allocations:      252512

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

Prefixes being announced by APNIC Region ASes:                   203617
    Total APNIC prefixes after maximum aggregation:               60182
    APNIC Deaggregation factor:                                    3.38
Prefixes being announced from the APNIC address blocks:          199801
    Unique aggregates announced from the APNIC address blocks:    82445
APNIC Region origin ASes present in the Internet Routing Table:    9758
    APNIC Prefixes per ASN:                                       20.48
APNIC Region origin ASes announcing only one prefix:               2719
APNIC Region transit ASes present in the Internet Routing Table:   1455
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:   4745
Number of APNIC addresses announced to Internet:              773674496
    Equivalent to 46 /8s, 29 /16s and 86 /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:                    225014
    Total ARIN prefixes after maximum aggregation:               104849
    ARIN Deaggregation factor:                                     2.15
Prefixes being announced from the ARIN address blocks:           224054
    Unique aggregates announced from the ARIN address blocks:    105452
ARIN Region origin ASes present in the Internet Routing Table:    18470
    ARIN Prefixes per ASN:                                        12.13
ARIN Region origin ASes announcing only one prefix:                6858
ARIN Region transit ASes present in the Internet Routing Table:    1891
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2701
Number of ARIN addresses announced to Internet:              1077818496
    Equivalent to 64 /8s, 62 /16s and 52 /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:                    207489
    Total RIPE prefixes after maximum aggregation:                98322
    RIPE Deaggregation factor:                                     2.11
Prefixes being announced from the RIPE address blocks:           203854
    Unique aggregates announced from the RIPE address blocks:    120864
RIPE Region origin ASes present in the Internet Routing Table:    26062
    RIPE Prefixes per ASN:                                         7.82
RIPE Region origin ASes announcing only one prefix:               11568
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:    8106
Number of RIPE addresses announced to Internet:               719355520
    Equivalent to 42 /8s, 224 /16s and 126 /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:                   96989
    Total LACNIC prefixes after maximum aggregation:              21912
    LACNIC Deaggregation factor:                                   4.43
Prefixes being announced from the LACNIC address blocks:          98392
    Unique aggregates announced from the LACNIC address blocks:   42564
LACNIC Region origin ASes present in the Internet Routing Table:   8376
    LACNIC Prefixes per ASN:                                      11.75
LACNIC Region origin ASes announcing only one prefix:              2218
LACNIC Region transit ASes present in the Internet Routing Table:  1543
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        29
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  5929
Number of LACNIC addresses announced to Internet:             174042368
    Equivalent to 10 /8s, 95 /16s and 173 /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:                  21404
    Total AfriNIC prefixes after maximum aggregation:              4289
    AfriNIC Deaggregation factor:                                  4.99
Prefixes being announced from the AfriNIC address blocks:         28196
    Unique aggregates announced from the AfriNIC address blocks:   9119
AfriNIC Region origin ASes present in the Internet Routing Table:  1276
    AfriNIC Prefixes per ASN:                                     22.10
AfriNIC Region origin ASes announcing only one prefix:              436
AfriNIC Region transit ASes present in the Internet Routing Table:  244
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:  554
Number of AfriNIC addresses announced to Internet:            105021696
    Equivalent to 6 /8s, 66 /16s and 129 /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         4741        546     555  TPG-INTERNET-AP TPG Telecom Limited, AU
  7552         3167       1443      27  VIETEL-AS-AP Viettel Group, VN
 45899         3038       1745     112  VNPT-AS-VN VNPT Corp, VN
  9808         2846       9043      62  CMNET-GD Guangdong Mobile Communication
  9829         2734       1496     551  BSNL-NIB National Internet Backbone, IN
  4766         2543      11120     760  KIXS-AS-KR Korea Telecom, KR
  9394         2154       4882      26  CTTNET China TieTong Telecommunications
  4755         2136        428     182  TATACOMM-AS TATA Communications formerl
  9498         2050        427     170  BBIL-AP BHARTI Airtel Ltd., IN
 23969         1765        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         4065        280      25  VIASAT-SP-BACKBONE - ViaSat,Inc., US
 11492         3654        238     582  CABLEONE - CABLE ONE, INC., US
  6327         3634       1325      93  SHAW - Shaw Communications Inc., CA
 22773         3401       2974     155  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 16509         2785       6041    1202  AMAZON-02 - Amazon.com, Inc., US
 16625         2443       1337    1851  AKAMAI-AS - Akamai Technologies, Inc., 
 30036         2169        350     159  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
 20115         2150       2758     525  CHARTER-20115 - Charter Communications,
 18566         2100        405     108  MEGAPATH5-US - MegaPath Corporation, US
  5650         2086       3074    1462  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         5432       1629     140  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  8551         3211        378      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2670        524    1924  AKAMAI-ASN1, US
 12389         2244       2223     636  ROSTELECOM-AS, RU
 34984         2080        343     543  TELLCOM-AS, TR
  9121         1668       1692      18  TTNET, TR
 13188         1601        100      47  TRIOLAN, UA
  9009         1455        151     793  M247, GB
  8402         1222        545      15  CORBINA-AS OJSC "Vimpelcom", RU

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

LACNIC Region per AS prefix count summary
-----------------------------------------

   ASN   No of nets  /20 equiv  MaxAgg  Description
  8151         5751       3368     573  Uninet S.A. de C.V., MX
 10620         3432        535     405  Telmex Colombia S.A., CO
 11830         2708        384      34  Instituto Costarricense de Electricidad
  3816         1530        579     213  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  7303         1479       1020     258  Telecom Argentina S.A., AR
 28573         1390       2236     203  CLARO S.A., BR
  6503         1263        433      53  Axtel, S.A.B. de C.V., MX
  6147         1200        377      30  Telefonica del Peru S.A.A., PE
 13999          983        513     247  Mega Cable, S.A. de C.V., MX
 11172          936        143      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         1158        393      21  LINKdotNET-AS, EG
 37611          906        107       9  Afrihost, ZA
 24835          888        648      21  RAYA-AS, EG
 36992          829       1536      69  ETISALAT-MISR, EG
 36903          827        416     126  MT-MPLS, MA
  8452          685       1731      19  TE-AS TE-AS, EG
 29571          512         68      12  ORANGE-COTE-IVOIRE, CI
 37492          470        470      57  ORANGE-, TN
 15706          421         32       6  Sudatel, SD
 23889          414        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         5751       3368     573  Uninet S.A. de C.V., MX
 12479         5432       1629     140  UNI2-AS, ES
  7545         4741        546     555  TPG-INTERNET-AP TPG Telecom Limited, AU
  7155         4065        280      25  VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891         3778        203      20  ALJAWWALSTC-AS, SA
 11492         3654        238     582  CABLEONE - CABLE ONE, INC., US
  6327         3634       1325      93  SHAW - Shaw Communications Inc., CA
 10620         3432        535     405  Telmex Colombia S.A., CO
 22773         3401       2974     155  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  8551         3211        378      45  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       5432         5292   UNI2-AS, ES
  7545       4741         4186   TPG-INTERNET-AP TPG Telecom Limited, AU
  7155       4065         4040   VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891       3778         3758   ALJAWWALSTC-AS, SA
  6327       3634         3541   SHAW - Shaw Communications Inc., CA
 22773       3401         3246   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  8551       3211         3166   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  7552       3167         3140   VIETEL-AS-AP Viettel Group, VN
 11492       3654         3072   CABLEONE - CABLE ONE, INC., US
 10620       3432         3027   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
 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
  65544   DOCUMENT     103.75.239.0/24     135000       ONS-BD OPEN NETWORK SOLUTIONS 
  65549   DOCUMENT     117.239.163.0/24     65544       UNKNOWN
  64339   UNALLOCATED  143.0.108.0/22       18747       IFX18747 - IFX Corporation, US
  65551   DOCUMENT     149.165.246.0/24     19782       INDIANAGIGAPOP - Indiana Unive
  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&

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        /8:12       /9:11      /10:38      /11:100     /12:295     
/13:571     /14:1131    /15:1911    /16:13323   /17:8001    /18:13957   
/19:25827   /20:40305   /21:46996   /22:93871   /23:76625   /24:430648  
/25:918     /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     4363          5432    UNI2-AS, ES
  6327     3409          3634    SHAW - Shaw Communications Inc., CA
  7155     3156          4065    VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891     2946          3778    ALJAWWALSTC-AS, SA
 11492     2860          3654    CABLEONE - CABLE ONE, INC., US
  8551     2665          3211    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773     2641          3401    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 11830     2053          2708    Instituto Costarricense de Electricidad y Telec
 18566     1995          2100    MEGAPATH5-US - MegaPath Corporation, US
 30036     1919          2169    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)
----------------------------------------------

   1:1600      2:1022      3:6         4:21        5:3151      6:47     
   7:1         8:1308      9:1        12:1801     13:342      14:2014   
  15:36       16:4        17:262      18:58       20:52       23:2701   
  24:2505     25:2        27:2459     31:1984     32:100      35:35     
  36:865      37:3023     38:1737     39:293      40:122      41:3288   
  42:781      43:2035     44:150      45:7842     46:3292     47:258    
  49:1363     50:1107     51:322      52:1010     54:281      55:708    
  56:6        57:45       58:1753     59:1057     60:506      61:2181   
  62:2148     63:1826     64:4971     65:2203     66:4828     67:2780   
  68:1162     69:3541     70:1370     71:632      72:2629     74:2740   
  75:1289     76:557      77:1824     78:1838     79:2288     80:1806   
  81:1492     82:1128     83:949      84:1132     85:2283     86:540    
  87:1555     88:1053     89:2640     90:218      91:6564     92:1404   
  93:2487     94:2497     95:3288     96:946      97:342      98:964    
  99:757     100:88      101:1160    102:580     103:21225   104:3546   
 105:253     106:776     107:1765    108:694     109:3751    110:1666   
 111:2066    112:1507    113:1403    114:1233    115:1708    116:1754   
 117:1920    118:2091    119:1634    120:1042    121:1043    122:2361   
 123:1720    124:1492    125:1960    128:1251    129:839     130:531    
 131:1820    132:806     133:222     134:1095    135:242     136:575    
 137:768     138:2037    139:887     140:647     141:882     142:801    
 143:1049    144:878     145:497     146:1275    147:837     148:1681   
 149:942     150:807     151:1020    152:1064    153:334     154:3180   
 155:920     156:1641    157:1006    158:654     159:1950    160:1609   
 161:927     162:2957    163:816     164:1206    165:1593    166:430    
 167:1407    168:3332    169:869     170:4130    171:578     172:1647   
 173:2224    174:1045    175:930     176:2323    177:4221    178:2540   
 179:1397    180:2092    181:2425    182:2692    183:1074    184:2250   
 185:15132   186:3684    187:2492    188:2922    189:1992    190:8249   
 191:1547    192:10056   193:6681    194:5437    195:4137    196:3113   
 197:1790    198:5949    199:5978    200:7131    201:5092    202:10426  
 203:10138   204:4545    205:3049    206:3238    207:3251    208:3939   
 209:4243    210:3926    211:2016    212:3096    213:2925    214:1110   
 215:55      216:5933    217:2226    218:876     219:593     220:1862   
 221:968     222:983     223:1370   

End of report


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