Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Sep 21 18:03:02 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 22 Sep, 2018

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

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

BGP routing table entries examined:                              717186
    Prefixes after maximum aggregation (per Origin AS):          275396
    Deaggregation factor:                                          2.60
    Unique aggregates announced (without unneeded subnets):      344253
Total ASes present in the Internet Routing Table:                 61918
    Prefixes per ASN:                                             11.58
Origin-only ASes present in the Internet Routing Table:           53461
Origin ASes announcing only one prefix:                           23313
Transit ASes present in the Internet Routing Table:                8457
Transit-only ASes present in the Internet Routing Table:            263
Average AS path length visible in the Internet Routing Table:       4.0
    Max AS path length visible:                                      36
    Max AS path prepend of ASN ( 30873)                              34
Prefixes from unregistered ASNs in the Routing Table:                66
    Number of instances of unregistered ASNs:                        66
Number of 32-bit ASNs allocated by the RIRs:                      24155
Number of 32-bit ASNs visible in the Routing Table:               19503
Prefixes from 32-bit ASNs in the Routing Table:                   81974
Number of bogon 32-bit ASNs visible in the Routing Table:            27
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            312
Number of addresses announced to Internet:                   2852765379
    Equivalent to 170 /8s, 9 /16s and 190 /24s
    Percentage of available address space announced:               77.1
    Percentage of allocated address space announced:               77.1
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.0
Total number of prefixes smaller than registry allocations:      239906

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

Prefixes being announced by APNIC Region ASes:                   195142
    Total APNIC prefixes after maximum aggregation:               55652
    APNIC Deaggregation factor:                                    3.51
Prefixes being announced from the APNIC address blocks:          193036
    Unique aggregates announced from the APNIC address blocks:    79550
APNIC Region origin ASes present in the Internet Routing Table:    9105
    APNIC Prefixes per ASN:                                       21.20
APNIC Region origin ASes announcing only one prefix:               2568
APNIC Region transit ASes present in the Internet Routing Table:   1353
Average APNIC Region AS path length visible:                        4.0
    Max APNIC Region AS path length visible:                         29
Number of APNIC region 32-bit ASNs visible in the Routing Table:   4066
Number of APNIC addresses announced to Internet:              767534722
    Equivalent to 45 /8s, 191 /16s and 166 /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:                    213254
    Total ARIN prefixes after maximum aggregation:               100728
    ARIN Deaggregation factor:                                     2.12
Prefixes being announced from the ARIN address blocks:           212954
    Unique aggregates announced from the ARIN address blocks:    101173
ARIN Region origin ASes present in the Internet Routing Table:    18240
    ARIN Prefixes per ASN:                                        11.68
ARIN Region origin ASes announcing only one prefix:                6761
ARIN Region transit ASes present in the Internet Routing Table:    1810
Average ARIN Region AS path length visible:                         3.6
    Max ARIN Region AS path length visible:                          23
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2433
Number of ARIN addresses announced to Internet:              1097175968
    Equivalent to 65 /8s, 101 /16s and 147 /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,  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:                    196125
    Total RIPE prefixes after maximum aggregation:                93529
    RIPE Deaggregation factor:                                     2.10
Prefixes being announced from the RIPE address blocks:           192440
    Unique aggregates announced from the RIPE address blocks:    113807
RIPE Region origin ASes present in the Internet Routing Table:    25510
    RIPE Prefixes per ASN:                                         7.54
RIPE Region origin ASes announcing only one prefix:               11495
RIPE Region transit ASes present in the Internet Routing Table:    3518
Average RIPE Region AS path length visible:                         4.1
    Max RIPE Region AS path length visible:                          36
Number of RIPE region 32-bit ASNs visible in the Routing Table:    7420
Number of RIPE addresses announced to Internet:               714498432
    Equivalent to 42 /8s, 150 /16s and 97 /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:                   93003
    Total LACNIC prefixes after maximum aggregation:              21234
    LACNIC Deaggregation factor:                                   4.38
Prefixes being announced from the LACNIC address blocks:          94383
    Unique aggregates announced from the LACNIC address blocks:   41228
LACNIC Region origin ASes present in the Internet Routing Table:   7575
    LACNIC Prefixes per ASN:                                      12.46
LACNIC Region origin ASes announcing only one prefix:              2085
LACNIC Region transit ASes present in the Internet Routing Table:  1433
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        26
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  5115
Number of LACNIC addresses announced to Internet:             172168992
    Equivalent to 10 /8s, 67 /16s and 23 /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:                  19595
    Total AfriNIC prefixes after maximum aggregation:              4194
    AfriNIC Deaggregation factor:                                  4.67
Prefixes being announced from the AfriNIC address blocks:         24061
    Unique aggregates announced from the AfriNIC address blocks:   8230
AfriNIC Region origin ASes present in the Internet Routing Table:  1200
    AfriNIC Prefixes per ASN:                                     20.05
AfriNIC Region origin ASes announcing only one prefix:              404
AfriNIC Region transit ASes present in the Internet Routing Table:  242
Average AfriNIC Region AS path length visible:                      4.4
    Max AfriNIC Region AS path length visible:                       26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  469
Number of AfriNIC addresses announced to Internet:            100942592
    Equivalent to 6 /8s, 4 /16s and 67 /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         4633       4192      74  ERX-CERNET-BKB China Education and Rese
  7545         4445        483     474  TPG-INTERNET-AP TPG Telecom Limited, AU
  7552         2996       1154      90  VIETEL-AS-AP Viettel Group, VN
  4766         2823      11130     765  KIXS-AS-KR Korea Telecom, KR
  9829         2811       1495     540  BSNL-NIB National Internet Backbone, IN
 45899         2751       1666     157  VNPT-AS-VN VNPT Corp, VN
  9394         2646       4907      31  CTTNET China TieTong Telecommunications
  9808         2266       8699      26  CMNET-GD Guangdong Mobile Communication
 17974         2247        956      76  TELKOMNET-AS2-AP PT Telekomunikasi Indo
  4755         2120        417     204  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
 11492         3580        241     447  CABLEONE - CABLE ONE, INC., US
  6327         3469       1324      82  SHAW - Shaw Communications Inc., CA
 22773         3238       2971     156  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 16509         2289       4938     794  AMAZON-02 - Amazon.com, Inc., US
 18566         2163        405     109  MEGAPATH5-US - MegaPath Corporation, US
 20115         2157       2741     520  CHARTER-NET-HKY-NC - Charter Communicat
 30036         2047        347     138  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
   209         2044       5082     606  CENTURYLINK-US-LEGACY-QWEST - Qwest Com
 16625         1998       1077    1505  AKAMAI-AS - Akamai Technologies, Inc., 
  5650         1887       3224    1320  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         4897       1614     126  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  8551         3061        378      51  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2579        606    1918  AKAMAI-ASN1, US
 12389         2058       1943     698  ROSTELECOM-AS, RU
 34984         2040        336     508  TELLCOM-AS, TR
  9121         1905       1691      16  TTNET, TR
 13188         1603        100      46  TRIOLAN, UA
  8402         1266        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         5439       3320     604  Uninet S.A. de C.V., MX
 10620         3225        493     777  Telmex Colombia S.A., CO
 11830         2653        370      81  Instituto Costarricense de Electricidad
  6503         1654        444      66  Axtel, S.A.B. de C.V., MX
  7303         1431        954     205  Telecom Argentina S.A., AR
 28573         1095       2231     196  CLARO S.A., BR
  3816         1016        509     121  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147          944        377      31  Telefonica del Peru S.A.A., PE
 11172          933        128      70  Alestra, S. de R.L. de C.V., MX
 18881          919       1114      28  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         1196        396      48  LINKdotNET-AS, EG
 37611          902        107       9  Afrihost, ZA
 36903          778        391     137  MT-MPLS, MA
 36992          749       1411      41  ETISALAT-MISR, EG
 24835          658        818      18  RAYA-AS, EG
  8452          604       1728      14  TE-AS TE-AS, EG
 37492          473        470      55  ORANGE-, TN
 29571          463         70      11  ORANGE-COTE-IVOIRE, CI
 37342          386         32       1  MOVITEL, MZ
 23889          376        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         5439       3320     604  Uninet S.A. de C.V., MX
 12479         4897       1614     126  UNI2-AS, ES
  4538         4633       4192      74  ERX-CERNET-BKB China Education and Rese
  7545         4445        483     474  TPG-INTERNET-AP TPG Telecom Limited, AU
 39891         3778        203      20  ALJAWWALSTC-AS, SA
 11492         3580        241     447  CABLEONE - CABLE ONE, INC., US
  6327         3469       1324      82  SHAW - Shaw Communications Inc., CA
 22773         3238       2971     156  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 10620         3225        493     777  Telmex Colombia S.A., CO
  8551         3061        378      51  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       4897         4771   UNI2-AS, ES
  4538       4633         4559   ERX-CERNET-BKB China Education and Research Net
  7545       4445         3971   TPG-INTERNET-AP TPG Telecom Limited, AU
 39891       3778         3758   ALJAWWALSTC-AS, SA
  6327       3469         3387   SHAW - Shaw Communications Inc., CA
 11492       3580         3133   CABLEONE - CABLE ONE, INC., US
 22773       3238         3082   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  8551       3061         3010   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  7552       2996         2906   VIETEL-AS-AP Viettel Group, VN
  9394       2646         2615   CTTNET China TieTong Telecommunications Corpora

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
  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
  64121   UNALLOCATED  98.159.9.0/24        19555       KMI-NETWORK - Kinder Morgan, I
  64121   UNALLOCATED  98.159.12.0/24       19555       KMI-NETWORK - Kinder Morgan, I
  64140   UNALLOCATED  98.159.14.0/24       64121       UNKNOWN
  65001   PRIVATE      109.161.56.0/24      13118       ASN-YARTELECOM PJSC Rostelecom
  64643   PRIVATE      119.44.18.0/24        9394       CTTNET China TieTong Telecommu

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

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

Prefix             Origin AS  Description
198.18.1.19/32        7497     CSTNET-AS-AP Computer Network Information Cente

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      /10:36      /11:98      /12:289     
/13:564     /14:1099    /15:1883    /16:13329   /17:7899    /18:13801   
/19:25339   /20:39520   /21:45890   /22:89020   /23:72940   /24:403255  
/25:821     /26:620     /27:627     /28:36      /29:21      /30:19      
/31:4       /32:51      

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

   ASN   No of nets  Total ann.  Description
 12479     3649          4897    UNI2-AS, ES
  6327     3256          3469    SHAW - Shaw Communications Inc., CA
 39891     2946          3778    ALJAWWALSTC-AS, SA
 11492     2831          3580    CABLEONE - CABLE ONE, INC., US
  8551     2517          3061    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773     2500          3238    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 18566     2057          2163    MEGAPATH5-US - MegaPath Corporation, US
 11830     2003          2653    Instituto Costarricense de Electricidad y Telec
 30036     1795          2047    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
  5650     1554          1887    FRONTIER-FRTR - Frontier Communications of Amer

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

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

   1:1597      2:846       4:18        5:2826      6:44        7:1      
   8:1115     12:1866     13:211      14:1811     15:34       16:3      
  17:196      18:55       20:50       23:2478     24:2413     25:2      
  27:2498     31:1982     32:88       35:29       36:534      37:2840   
  38:1531     39:261      40:112      41:3221     42:708      43:1920   
  44:117      45:5558     46:3116     47:215      49:1349     50:1058   
  51:318      52:1087     54:367      55:3        56:12       57:38     
  58:1613     59:986      60:417      61:2089     62:1901     63:1799   
  64:5041     65:2205     66:4747     67:2676     68:1151     69:3362   
  70:1158     71:576      72:2228     74:2724     75:416      76:458    
  77:1616     78:1732     79:2240     80:1568     81:1399     82:1061   
  83:791      84:1042     85:2026     86:563      87:1427     88:938    
  89:2341     90:211      91:6437     92:1280     93:2371     94:2432   
  95:3031     96:933      97:354      98:927      99:142     100:87     
 101:1197    102:210     103:18648   104:3524    105:218     106:761    
 107:1799    108:706     109:3328    110:1645    111:1806    112:1335   
 113:1306    114:1141    115:1677    116:1672    117:1784    118:2201   
 119:1668    120:1081    121:1056    122:2372    123:1639    124:1428   
 125:1930    128:1166    129:682     130:499     131:1612    132:724    
 133:191     134:1033    135:236     136:513     137:661     138:1927   
 139:685     140:536     141:751     142:844     143:1033    144:807    
 145:482     146:1242    147:733     148:1679    149:771     150:759    
 151:1101    152:845     153:323     154:1813    155:916     156:1465   
 157:808     158:659     159:1856    160:1445    161:828     162:2657   
 163:620     164:1094    165:1558    166:455     167:1214    168:3156   
 169:849     170:3982    171:492     172:1000    173:2087    174:997    
 175:802     176:2084    177:3984    178:2522    179:1294    180:2152   
 181:2426    182:2368    183:1269    184:1133    185:14124   186:3584   
 187:2520    188:2909    189:2030    190:8215    191:1412    192:9858   
 193:6256    194:5053    195:4001    196:2761    197:1610    198:5601   
 199:5964    200:7373    201:4973    202:10221   203:10279   204:4606   
 205:2890    206:3209    207:3195    208:3935    209:4106    210:3869   
 211:1999    212:3030    213:2811    214:1042    215:54      216:6030   
 217:2138    218:867     219:567     220:1812    221:999     222:994    
 223:1382   

End of report


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