[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri May 31 18:02:50 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 01 Jun, 2019

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

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

BGP routing table entries examined:                              757484
    Prefixes after maximum aggregation (per Origin AS):          290744
    Deaggregation factor:                                          2.61
    Unique aggregates announced (without unneeded subnets):      361416
Total ASes present in the Internet Routing Table:                 64395
    Prefixes per ASN:                                             11.76
Origin-only ASes present in the Internet Routing Table:           55392
Origin ASes announcing only one prefix:                           23824
Transit ASes present in the Internet Routing Table:                9003
Transit-only ASes present in the Internet Routing Table:            277
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      34
    Max AS path prepend of ASN (206156)                              26
Prefixes from unregistered ASNs in the Routing Table:                26
    Number of instances of unregistered ASNs:                        29
Number of 32-bit ASNs allocated by the RIRs:                      27191
Number of 32-bit ASNs visible in the Routing Table:               22216
Prefixes from 32-bit ASNs in the Routing Table:                   99727
Number of bogon 32-bit ASNs visible in the Routing Table:            21
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            256
Number of addresses announced to Internet:                   2845014656
    Equivalent to 169 /8s, 147 /16s and 122 /24s
    Percentage of available address space announced:               76.8
    Percentage of allocated address space announced:               76.8
    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:      253034

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

Prefixes being announced by APNIC Region ASes:                   204745
    Total APNIC prefixes after maximum aggregation:               60806
    APNIC Deaggregation factor:                                    3.37
Prefixes being announced from the APNIC address blocks:          200889
    Unique aggregates announced from the APNIC address blocks:    82494
APNIC Region origin ASes present in the Internet Routing Table:    9777
    APNIC Prefixes per ASN:                                       20.55
APNIC Region origin ASes announcing only one prefix:               2710
APNIC Region transit ASes present in the Internet Routing Table:   1458
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         26
Number of APNIC region 32-bit ASNs visible in the Routing Table:   4784
Number of APNIC addresses announced to Internet:              772744832
    Equivalent to 46 /8s, 15 /16s and 38 /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:                    225546
    Total ARIN prefixes after maximum aggregation:               105128
    ARIN Deaggregation factor:                                     2.15
Prefixes being announced from the ARIN address blocks:           224578
    Unique aggregates announced from the ARIN address blocks:    105785
ARIN Region origin ASes present in the Internet Routing Table:    18488
    ARIN Prefixes per ASN:                                        12.15
ARIN Region origin ASes announcing only one prefix:                6857
ARIN Region transit ASes present in the Internet Routing Table:    1902
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:    2721
Number of ARIN addresses announced to Internet:              1073736832
    Equivalent to 63 /8s, 255 /16s and 236 /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:                    208432
    Total RIPE prefixes after maximum aggregation:                98589
    RIPE Deaggregation factor:                                     2.11
Prefixes being announced from the RIPE address blocks:           204635
    Unique aggregates announced from the RIPE address blocks:    120973
RIPE Region origin ASes present in the Internet Routing Table:    26115
    RIPE Prefixes per ASN:                                         7.84
RIPE Region origin ASes announcing only one prefix:               11588
RIPE Region transit ASes present in the Internet Routing Table:    3729
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:    8158
Number of RIPE addresses announced to Internet:               719362176
    Equivalent to 42 /8s, 224 /16s and 152 /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:                   97168
    Total LACNIC prefixes after maximum aggregation:              21875
    LACNIC Deaggregation factor:                                   4.44
Prefixes being announced from the LACNIC address blocks:          98593
    Unique aggregates announced from the LACNIC address blocks:   42737
LACNIC Region origin ASes present in the Internet Routing Table:   8431
    LACNIC Prefixes per ASN:                                      11.69
LACNIC Region origin ASes announcing only one prefix:              2224
LACNIC Region transit ASes present in the Internet Routing Table:  1541
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        27
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  5988
Number of LACNIC addresses announced to Internet:             173838080
    Equivalent to 10 /8s, 92 /16s and 143 /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:                  21566
    Total AfriNIC prefixes after maximum aggregation:              4324
    AfriNIC Deaggregation factor:                                  4.99
Prefixes being announced from the AfriNIC address blocks:         28533
    Unique aggregates announced from the AfriNIC address blocks:   9201
AfriNIC Region origin ASes present in the Internet Routing Table:  1288
    AfriNIC Prefixes per ASN:                                     22.15
AfriNIC Region origin ASes announcing only one prefix:              445
AfriNIC Region transit ASes present in the Internet Routing Table:  247
Average AfriNIC Region AS path length visible:                      5.0
    Max AfriNIC Region AS path length visible:                       23
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  565
Number of AfriNIC addresses announced to Internet:            105079552
    Equivalent to 6 /8s, 67 /16s and 99 /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         4754        549     543  TPG-INTERNET-AP TPG Telecom Limited, AU
  7552         3164       1451      31  VIETEL-AS-AP Viettel Group, VN
 45899         3029       1741     112  VNPT-AS-VN VNPT Corp, VN
  9808         2830       9043      62  CMNET-GD Guangdong Mobile Communication
  9829         2736       1496     552  BSNL-NIB National Internet Backbone, IN
  4766         2530      11119     760  KIXS-AS-KR Korea Telecom, KR
  4755         2140        428     182  TATACOMM-AS TATA Communications formerl
  9394         2100       4882      26  CTTNET China TieTong Telecommunications
  9498         2058        427     171  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         4064        280      25  VIASAT-SP-BACKBONE - ViaSat,Inc., US
 11492         3645        238     610  CABLEONE - CABLE ONE, INC., US
  6327         3618       1324      89  SHAW - Shaw Communications Inc., CA
 22773         3405       2974     155  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 16509         2811       6141    1224  AMAZON-02 - Amazon.com, Inc., US
 16625         2498       1368    1877  AKAMAI-AS - Akamai Technologies, Inc., 
 30036         2159        347     201  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
 20115         2151       2760     526  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         5442       1629     141  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  8551         3216        378      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2658        511    1918  AKAMAI-ASN1, US
 12389         2243       2225     633  ROSTELECOM-AS, RU
 34984         2100        346     548  TELLCOM-AS, TR
  9121         1666       1692      18  TTNET, TR
 13188         1601        100      47  TRIOLAN, UA
  9009         1485        157     804  M247, GB
 61317         1300        136     376  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         5798       3369     569  Uninet S.A. de C.V., MX
 10620         3438        536     403  Telmex Colombia S.A., CO
 11830         2711        384      35  Instituto Costarricense de Electricidad
  7303         1483       1024     255  Telecom Argentina S.A., AR
 28573         1395       2239     200  CLARO S.A., BR
  6503         1253        441      54  Axtel, S.A.B. de C.V., MX
  6147         1105        377      30  Telefonica del Peru S.A.A., PE
  3816         1097        532     141  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 13999          993        514     242  Mega Cable, S.A. de C.V., MX
 11172          933        144      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         1167        393      21  LINKdotNET-AS, EG
 37611          964        107       9  Afrihost, ZA
 24835          888        624      21  RAYA-AS, EG
 36992          859       1536      69  ETISALAT-MISR, EG
 36903          827        416     126  MT-MPLS, MA
  8452          669       1731      19  TE-AS TE-AS, EG
 29571          512         68      11  ORANGE-COTE-IVOIRE, CI
 37492          474        470      57  ORANGE-, TN
 15706          421         32       6  Sudatel, SD
 37342          414         32       1  MOVITEL, MZ

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         5798       3369     569  Uninet S.A. de C.V., MX
 12479         5442       1629     141  UNI2-AS, ES
  7545         4754        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         3645        238     610  CABLEONE - CABLE ONE, INC., US
  6327         3618       1324      89  SHAW - Shaw Communications Inc., CA
 10620         3438        536     403  Telmex Colombia S.A., CO
 22773         3405       2974     155  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  8551         3216        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       5442         5301   UNI2-AS, ES
  7545       4754         4211   TPG-INTERNET-AP TPG Telecom Limited, AU
  7155       4064         4039   VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891       3778         3758   ALJAWWALSTC-AS, SA
  6327       3618         3529   SHAW - Shaw Communications Inc., CA
 22773       3405         3250   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  8551       3216         3171   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  7552       3164         3133   VIETEL-AS-AP Viettel Group, VN
 11492       3645         3035   CABLEONE - CABLE ONE, INC., US
 10620       3438         3035   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
 130974   UNALLOCATED  103.139.78.0/24     139074       TDL-AS-AP TECHNOLOGY DIRECTION
  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

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

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

Network            Origin AS  Description
23.135.144.0/24      14102    GTVR - Transvision Reseau Inc., CA
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

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      /10:37      /11:100     /12:294     
/13:570     /14:1132    /15:1915    /16:13325   /17:8031    /18:13987   
/19:25882   /20:40372   /21:47382   /22:94374   /23:76779   /24:432362  
/25:919     /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     4398          5442    UNI2-AS, ES
  6327     3408          3618    SHAW - Shaw Communications Inc., CA
  7155     3156          4064    VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891     2946          3778    ALJAWWALSTC-AS, SA
 11492     2856          3645    CABLEONE - CABLE ONE, INC., US
  8551     2670          3216    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773     2642          3405    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 11830     2055          2711    Instituto Costarricense de Electricidad y Telec
 18566     1995          2100    MEGAPATH5-US - MegaPath Corporation, US
 30036     1910          2159    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)
----------------------------------------------

   1:1699      2:1029      3:6         4:21        5:3143      6:47     
   7:1         8:1318      9:1        12:1801     13:345      14:2024   
  15:34       16:5        17:265      18:66       20:52       23:2719   
  24:2524     25:4        27:2452     31:2001     32:100      35:36     
  36:861      37:3028     38:1753     39:296      40:122      41:3262   
  42:834      43:2025     44:152      45:8132     46:3297     47:260    
  49:1366     50:1114     51:330      52:1013     54:281      55:704    
  56:6        57:45       58:1767     59:1063     60:513      61:2196   
  62:2156     63:1837     64:4983     65:2204     66:4837     67:2765   
  68:1163     69:3544     70:1366     71:637      72:2621     74:2740   
  75:1288     76:560      77:1824     78:1839     79:2419     80:1808   
  81:1497     82:1132     83:923      84:1136     85:2261     86:543    
  87:1564     88:1045     89:2653     90:219      91:6579     92:1416   
  93:2454     94:2463     95:3293     96:948      97:345      98:959    
  99:761     100:86      101:1165    102:624     103:21271   104:3550   
 105:259     106:778     107:1766    108:695     109:3636    110:1700   
 111:2046    112:1511    113:1372    114:1233    115:1715    116:1755   
 117:1925    118:2164    119:1627    120:1047    121:1043    122:2288   
 123:1745    124:1479    125:2013    128:1337    129:834     130:532    
 131:1818    132:809     133:222     134:1098    135:244     136:579    
 137:755     138:2055    139:882     140:644     141:882     142:810    
 143:1051    144:899     145:494     146:1272    147:839     148:1687   
 149:961     150:797     151:1019    152:1073    153:331     154:3398   
 155:917     156:1679    157:1003    158:662     159:1955    160:1603   
 161:940     162:2970    163:829     164:1200    165:1606    166:448    
 167:1412    168:3312    169:878     170:4125    171:574     172:1666   
 173:2230    174:1046    175:967     176:2346    177:4253    178:2541   
 179:1420    180:2127    181:2425    182:2699    183:1084    184:2255   
 185:15159   186:3684    187:2499    188:3000    189:2001    190:8227   
 191:1534    192:10071   193:6667    194:5437    195:4143    196:3132   
 197:1808    198:5941    199:5997    200:7100    201:5084    202:10450  
 203:10215   204:4543    205:3061    206:3243    207:3265    208:3954   
 209:4273    210:3931    211:2016    212:3079    213:2955    214:1116   
 215:55      216:5926    217:2231    218:878     219:604     220:1877   
 221:974     222:979     223:1371   

End of report


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