Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Apr 27 18:03:00 UTC 2018


This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.

The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG, IRNOG and the RIPE Routing WG.

Daily listings are sent to bgp-stats at lists.apnic.net

For historical data, please see http://thyme.rand.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.

Routing Table Report   04:00 +10GMT Sat 28 Apr, 2018

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

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

BGP routing table entries examined:                              696622
    Prefixes after maximum aggregation (per Origin AS):          268740
    Deaggregation factor:                                          2.59
    Unique aggregates announced (without unneeded subnets):      335828
Total ASes present in the Internet Routing Table:                 60573
    Prefixes per ASN:                                             11.50
Origin-only ASes present in the Internet Routing Table:           52334
Origin ASes announcing only one prefix:                           22916
Transit ASes present in the Internet Routing Table:                8239
Transit-only ASes present in the Internet Routing Table:            272
Average AS path length visible in the Internet Routing Table:       4.0
    Max AS path length visible:                                      32
    Max AS path prepend of ASN ( 30873)                              28
Prefixes from unregistered ASNs in the Routing Table:                52
    Number of instances of unregistered ASNs:                        52
Number of 32-bit ASNs allocated by the RIRs:                      22370
Number of 32-bit ASNs visible in the Routing Table:               18029
Prefixes from 32-bit ASNs in the Routing Table:                   74974
Number of bogon 32-bit ASNs visible in the Routing Table:            16
Special use prefixes present in the Routing Table:                    3
Prefixes being announced from unallocated address space:            274
Number of addresses announced to Internet:                   2858007298
    Equivalent to 170 /8s, 89 /16s and 187 /24s
    Percentage of available address space announced:               77.2
    Percentage of allocated address space announced:               77.2
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               98.9
Total number of prefixes smaller than registry allocations:      231989

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

Prefixes being announced by APNIC Region ASes:                   190773
    Total APNIC prefixes after maximum aggregation:               54174
    APNIC Deaggregation factor:                                    3.52
Prefixes being announced from the APNIC address blocks:          189607
    Unique aggregates announced from the APNIC address blocks:    77418
APNIC Region origin ASes present in the Internet Routing Table:    8760
    APNIC Prefixes per ASN:                                       21.64
APNIC Region origin ASes announcing only one prefix:               2447
APNIC Region transit ASes present in the Internet Routing Table:   1312
Average APNIC Region AS path length visible:                        4.0
    Max APNIC Region AS path length visible:                         23
Number of APNIC region 32-bit ASNs visible in the Routing Table:   3723
Number of APNIC addresses announced to Internet:              767006722
    Equivalent to 45 /8s, 183 /16s and 152 /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, 131072-137529
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:                    207204
    Total ARIN prefixes after maximum aggregation:                99040
    ARIN Deaggregation factor:                                     2.09
Prefixes being announced from the ARIN address blocks:           208175
    Unique aggregates announced from the ARIN address blocks:     98531
ARIN Region origin ASes present in the Internet Routing Table:    18158
    ARIN Prefixes per ASN:                                        11.46
ARIN Region origin ASes announcing only one prefix:                6718
ARIN Region transit ASes present in the Internet Routing Table:    1795
Average ARIN Region AS path length visible:                         3.6
    Max ARIN Region AS path length visible:                          20
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2345
Number of ARIN addresses announced to Internet:              1104075680
    Equivalent to 65 /8s, 206 /16s and 219 /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, 393216-397212
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  23/8,  24/8,  26/8,  28/8,
                        29/8,  30/8,  32/8,  33/8,  34/8,  35/8,  38/8,
                        40/8,  44/8,  45/8,  47/8,  48/8,  50/8,  52/8,
                        53/8,  54/8,  55/8,  56/8,  57/8,  63/8,  64/8,
                        65/8,  66/8,  67/8,  68/8,  69/8,  70/8,  71/8,
                        72/8,  73/8,  74/8,  75/8,  76/8,  96/8,  97/8,
                        98/8,  99/8, 100/8, 104/8, 107/8, 108/8, 128/8,
                       129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
                       137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
                       146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
                       157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
                       165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
                       173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8,
                       205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8,
                       216/8,

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                    190185
    Total RIPE prefixes after maximum aggregation:                91664
    RIPE Deaggregation factor:                                     2.07
Prefixes being announced from the RIPE address blocks:           186106
    Unique aggregates announced from the RIPE address blocks:    110990
RIPE Region origin ASes present in the Internet Routing Table:    25134
    RIPE Prefixes per ASN:                                         7.40
RIPE Region origin ASes announcing only one prefix:               11403
RIPE Region transit ASes present in the Internet Routing Table:    3498
Average RIPE Region AS path length visible:                         4.1
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    6928
Number of RIPE addresses announced to Internet:               715764352
    Equivalent to 42 /8s, 169 /16s and 178 /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
                       196608-207259
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:                   89824
    Total LACNIC prefixes after maximum aggregation:              19834
    LACNIC Deaggregation factor:                                   4.53
Prefixes being announced from the LACNIC address blocks:          91232
    Unique aggregates announced from the LACNIC address blocks:   40975
LACNIC Region origin ASes present in the Internet Routing Table:   7081
    LACNIC Prefixes per ASN:                                      12.88
LACNIC Region origin ASes announcing only one prefix:              1968
LACNIC Region transit ASes present in the Internet Routing Table:  1310
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        32
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  4618
Number of LACNIC addresses announced to Internet:             172822240
    Equivalent to 10 /8s, 77 /16s and 14 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-268700 + ERX transfers
LACNIC Address Blocks  177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
                       191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes:                  18582
    Total AfriNIC prefixes after maximum aggregation:              3981
    AfriNIC Deaggregation factor:                                  4.67
Prefixes being announced from the AfriNIC address blocks:         21228
    Unique aggregates announced from the AfriNIC address blocks:   7681
AfriNIC Region origin ASes present in the Internet Routing Table:  1140
    AfriNIC Prefixes per ASN:                                     18.62
AfriNIC Region origin ASes announcing only one prefix:              379
AfriNIC Region transit ASes present in the Internet Routing Table:  229
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       23
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  415
Number of AfriNIC addresses announced to Internet:             97958400
    Equivalent to 5 /8s, 214 /16s and 186 /24s
AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

   ASN   No of nets  /20 equiv  MaxAgg  Description
  4538         5404       4192      74  ERX-CERNET-BKB China Education and Rese
  7545         4389        415     431  TPG-INTERNET-AP TPG Telecom Limited, AU
  4766         2899      11134     790  KIXS-AS-KR Korea Telecom, KR
  9829         2810       1499     545  BSNL-NIB National Internet Backbone, IN
  7552         2766       1155      71  VIETEL-AS-AP Viettel Group, VN
  9394         2626       4922      26  CTTNET China TieTong Telecommunications
 45899         2517       1574     160  VNPT-AS-VN VNPT Corp, VN
 17974         2284        928      79  TELKOMNET-AS2-AP PT Telekomunikasi Indo
  9808         2190       8699      32  CMNET-GD Guangdong Mobile Communication
  4755         2098        417     206  TATACOMM-AS TATA Communications formerl

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

ARIN Region per AS prefix count summary
---------------------------------------

   ASN   No of nets  /20 equiv  MaxAgg  Description
  6327         3379       1323      84  SHAW - Shaw Communications Inc., CA
 22773         3289       2988     149  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 18566         2168        405     109  MEGAPATH5-US - MegaPath Corporation, US
 20115         2097       2499     453  CHARTER-NET-HKY-NC - Charter Communicat
 16509         2075       4446     643  AMAZON-02 - Amazon.com, Inc., US
   209         1969       5070     607  CENTURYLINK-US-LEGACY-QWEST - Qwest Com
 30036         1962        338     176  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
 11492         1872        232     540  CABLEONE - CABLE ONE, INC., US
 16625         1746        852    1253  AKAMAI-AS - Akamai Technologies, Inc., 
  7018         1703      20213    1257  ATT-INTERNET4 - AT&T Services, Inc., US

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         4088       1516     505  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
 20940         2672        726    1962  AKAMAI-ASN1, US
  8551         2073        378      43  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389         2036       1876     707  ROSTELECOM-AS, RU
 34984         2019        334     485  TELLCOM-AS, TR
  9121         1979       1692      19  TTNET, TR
 13188         1609        100      43  TRIOLAN, UA
  8402         1245        544      14  CORBINA-AS OJSC "Vimpelcom", RU
  6849         1241        355      21  UKRTELNET, UA

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

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

   ASN   No of nets  /20 equiv  MaxAgg  Description
  8151         4442       3385     585  Uninet S.A. de C.V., MX
 10620         3591        542     244  Telmex Colombia S.A., CO
 11830         2645        369      86  Instituto Costarricense de Electricidad
  6503         1612        437      53  Axtel, S.A.B. de C.V., MX
  7303         1519       1026     193  Telecom Argentina S.A., AR
 28573         1034       2251     184  CLARO S.A., BR
  6147         1010        377      31  Telefonica del Peru S.A.A., PE
  3816         1009        505     123  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11172          927        126      85  Alestra, S. de R.L. de C.V., MX
 18881          909       1074      29  TELEFÔNICA BRASIL S.A, BR

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

AfriNIC Region per AS prefix count summary
------------------------------------------

   ASN   No of nets  /20 equiv  MaxAgg  Description
 24863         1171        396      45  LINKdotNET-AS, EG
 37611          830        107       9  Afrihost, ZA
 36903          739        371     141  MT-MPLS, MA
  8452          669       1730      18  TE-AS TE-AS, EG
 36992          665       1412      41  ETISALAT-MISR, EG
 24835          598        850      15  RAYA-AS, EG
 29571          474         68      12  ORANGE-COTE-IVOIRE, CI
 37492          452        376      81  ORANGE-, TN
 23889          362        103      14  MauritiusTelecom, MU
 37342          361         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
  4538         5404       4192      74  ERX-CERNET-BKB China Education and Rese
  8151         4442       3385     585  Uninet S.A. de C.V., MX
  7545         4389        415     431  TPG-INTERNET-AP TPG Telecom Limited, AU
 12479         4088       1516     505  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
 10620         3591        542     244  Telmex Colombia S.A., CO
  6327         3379       1323      84  SHAW - Shaw Communications Inc., CA
 22773         3289       2988     149  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  4766         2899      11134     790  KIXS-AS-KR Korea Telecom, KR
  9829         2810       1499     545  BSNL-NIB National Internet Backbone, IN

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

Global Per AS Maximum Aggr summary
----------------------------------

  ASN   No of nets  Net Savings  Description
  7545       4389         3958   TPG-INTERNET-AP TPG Telecom Limited, AU
  8151       4442         3857   Uninet S.A. de C.V., MX
 39891       3778         3758   ALJAWWALSTC-AS, SA
 12479       4088         3583   UNI2-AS, ES
 10620       3591         3347   Telmex Colombia S.A., CO
  6327       3379         3295   SHAW - Shaw Communications Inc., CA
 22773       3289         3140   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  7552       2766         2695   VIETEL-AS-AP Viettel Group, VN
  9394       2626         2600   CTTNET China TieTong Telecommunications Corpora
 11830       2645         2559   Instituto Costarricense de Electricidad y Telec

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
  65001   PRIVATE      46.237.40.0/21       13118       ASN-YARTELECOM PJSC Rostelecom
  64513   PRIVATE      62.150.101.0/24       9155       QNET Kuwait, KW
  65537   DOCUMENT     62.162.120.0/24       6821       MT-AS-OWN bul. Orce Nikolov bb
 419333   UNALLOCATED  84.17.91.0/24        41933       IPRAGAZ-AS Istanbul/ TURKEY, T
  65024   PRIVATE      87.103.232.0/24      39407       CHITATELECOM-AS, RU
  65024   PRIVATE      87.103.233.0/24      39407       CHITATELECOM-AS, RU
  65024   PRIVATE      87.103.234.0/24      39407       CHITATELECOM-AS, RU
  65024   PRIVATE      95.189.78.0/24       39407       CHITATELECOM-AS, RU
  65024   PRIVATE      95.189.80.0/22       39407       CHITATELECOM-AS, RU

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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
100.66.224.0/19        209     CENTURYLINK-US-LEGACY-QWEST - Qwest Communicati
100.127.16.0/23      28885     OMANTEL-NAP-AS OmanTel NAP, OM
100.127.18.0/23      28885     OMANTEL-NAP-AS OmanTel NAP, OM

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

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

Network            Origin AS  Description
27.100.7.0/24        56096    UNKNOWN
41.76.136.0/22       37500    -Reserved AS-, ZZ
41.76.136.0/24       37500    -Reserved AS-, ZZ
41.76.138.0/24       37500    -Reserved AS-, ZZ
41.76.139.0/24       37500    -Reserved AS-, ZZ
41.76.140.0/22       37500    -Reserved AS-, ZZ
41.76.140.0/24       37500    -Reserved AS-, ZZ
41.76.141.0/24       37500    -Reserved AS-, ZZ
41.76.142.0/24       37500    -Reserved AS-, ZZ
41.76.143.0/24       37500    -Reserved AS-, ZZ

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

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:14       /9:11      /10:37      /11:100     /12:288     
/13:565     /14:1096    /15:1901    /16:13407   /17:7837    /18:13590   
/19:25171   /20:39380   /21:45168   /22:86697   /23:70128   /24:388993  
/25:847     /26:607     /27:654     /28:36      /29:21      /30:17      
/31:4       /32:53      

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

   ASN   No of nets  Total ann.  Description
  6327     3168          3379    SHAW - Shaw Communications Inc., CA
 39891     2946          3778    ALJAWWALSTC-AS, SA
 12479     2830          4088    UNI2-AS, ES
 22773     2543          3289    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 18566     2061          2168    MEGAPATH5-US - MegaPath Corporation, US
 11830     1993          2645    Instituto Costarricense de Electricidad y Telec
 30036     1714          1962    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
 11492     1615          1872    CABLEONE - CABLE ONE, INC., US
 10620     1601          3591    Telmex Colombia S.A., CO
  8551     1536          2073    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo

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

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

   1:1591      2:843       4:19        5:2802      6:65        7:1      
   8:1116     12:1870     13:185      14:1745     15:30       16:3      
  17:204      18:68       20:47       21:5        23:2579     24:2163   
  25:2        27:2277     31:1975     32:87       35:27       36:508    
  37:2769     38:1445     39:256      40:119      41:3093     42:574    
  43:1976     44:109      45:4304     46:3040     47:204      49:1312   
  50:1047     51:304      52:1020     54:372      55:4        56:12     
  57:42       58:1556     59:992      60:430      61:2154     62:1814   
  63:1788     64:4926     65:2199     66:4611     67:2367     68:1144   
  69:3191     70:1147     71:561      72:2101     74:2719     75:414    
  76:439      77:1549     78:1698     79:1847     80:1490     81:1409   
  82:1079     83:777      84:1043     85:2059     86:590      87:1302   
  88:938      89:2330     90:206      91:6340     92:1168     93:2370   
  94:2379     95:2825     96:663      97:358      98:946      99:133    
 100:81      101:1281    102:40      103:17600   104:3524    105:232    
 106:659     107:1770    108:710     109:2718    110:1604    111:1774   
 112:1267    113:1262    114:1123    115:1633    116:1643    117:1730   
 118:2167    119:1643    120:983     121:1053    122:2451    123:1815   
 124:1467    125:1891    128:1002    129:648     130:453     131:1597   
 132:666     133:196     134:1016    135:227     136:457     137:493    
 138:1924    139:601     140:426     141:694     142:803     143:975    
 144:799     145:461     146:1184    147:786     148:1593    149:700    
 150:732     151:1060    152:767     153:311     154:1025    155:763    
 156:929     157:781     158:642     159:1738    160:925     161:751    
 162:2584    163:546     164:1050    165:1569    166:431     167:1396   
 168:3066    169:800     170:3694    171:432     172:1060    173:1984   
 174:885     175:759     176:1943    177:4014    178:2433    179:1212   
 180:2247    181:2193    182:2386    183:1145    184:956     185:13421  
 186:3608    187:2370    188:2770    189:2032    190:8091    191:1468   
 192:9836    193:5885    194:4773    195:3955    196:2530    197:1457   
 198:5525    199:5882    200:7399    201:4997    202:10326   203:10185  
 204:4562    205:2879    206:3095    207:3204    208:3979    209:3948   
 210:4033    211:2116    212:3005    213:2730    214:957     215:61     
 216:5928    217:2126    218:912     219:622     220:1754    221:995    
 222:1038    223:1242   

End of report


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