[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Feb 8 18:03:52 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 09 Feb, 2019

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

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

BGP routing table entries examined:                              735782
    Prefixes after maximum aggregation (per Origin AS):          283896
    Deaggregation factor:                                          2.59
    Unique aggregates announced (without unneeded subnets):      354692
Total ASes present in the Internet Routing Table:                 63154
    Prefixes per ASN:                                             11.65
Origin-only ASes present in the Internet Routing Table:           54395
Origin ASes announcing only one prefix:                           23628
Transit ASes present in the Internet Routing Table:                8759
Transit-only ASes present in the Internet Routing Table:            269
Average AS path length visible in the Internet Routing Table:       4.2
    Max AS path length visible:                                      31
    Max AS path prepend of ASN ( 16327)                              25
Prefixes from unregistered ASNs in the Routing Table:                23
    Number of instances of unregistered ASNs:                        25
Number of 32-bit ASNs allocated by the RIRs:                      25701
Number of 32-bit ASNs visible in the Routing Table:               20922
Prefixes from 32-bit ASNs in the Routing Table:                   90815
Number of bogon 32-bit ASNs visible in the Routing Table:            18
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            272
Number of addresses announced to Internet:                   2840238979
    Equivalent to 169 /8s, 74 /16s and 155 /24s
    Percentage of available address space announced:               76.7
    Percentage of allocated address space announced:               76.7
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.2
Total number of prefixes smaller than registry allocations:      246466

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

Prefixes being announced by APNIC Region ASes:                   200254
    Total APNIC prefixes after maximum aggregation:               57486
    APNIC Deaggregation factor:                                    3.48
Prefixes being announced from the APNIC address blocks:          197290
    Unique aggregates announced from the APNIC address blocks:    81759
APNIC Region origin ASes present in the Internet Routing Table:    9439
    APNIC Prefixes per ASN:                                       20.90
APNIC Region origin ASes announcing only one prefix:               2672
APNIC Region transit ASes present in the Internet Routing Table:   1405
Average APNIC Region AS path length visible:                        4.1
    Max APNIC Region AS path length visible:                         26
Number of APNIC region 32-bit ASNs visible in the Routing Table:   4441
Number of APNIC addresses announced to Internet:              769736994
    Equivalent to 45 /8s, 225 /16s and 65 /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:                    217826
    Total ARIN prefixes after maximum aggregation:               103457
    ARIN Deaggregation factor:                                     2.11
Prefixes being announced from the ARIN address blocks:           217127
    Unique aggregates announced from the ARIN address blocks:    104021
ARIN Region origin ASes present in the Internet Routing Table:    18351
    ARIN Prefixes per ASN:                                        11.83
ARIN Region origin ASes announcing only one prefix:                6829
ARIN Region transit ASes present in the Internet Routing Table:    1860
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2573
Number of ARIN addresses announced to Internet:              1077270688
    Equivalent to 64 /8s, 53 /16s and 216 /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:                    202475
    Total RIPE prefixes after maximum aggregation:                96393
    RIPE Deaggregation factor:                                     2.10
Prefixes being announced from the RIPE address blocks:           198575
    Unique aggregates announced from the RIPE address blocks:    117680
RIPE Region origin ASes present in the Internet Routing Table:    25807
    RIPE Prefixes per ASN:                                         7.69
RIPE Region origin ASes announcing only one prefix:               11507
RIPE Region transit ASes present in the Internet Routing Table:    3628
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          28
Number of RIPE region 32-bit ASNs visible in the Routing Table:    7813
Number of RIPE addresses announced to Internet:               716757184
    Equivalent to 42 /8s, 184 /16s and 216 /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:                   94825
    Total LACNIC prefixes after maximum aggregation:              22319
    LACNIC Deaggregation factor:                                   4.25
Prefixes being announced from the LACNIC address blocks:          96267
    Unique aggregates announced from the LACNIC address blocks:   41816
LACNIC Region origin ASes present in the Internet Routing Table:   8029
    LACNIC Prefixes per ASN:                                      11.99
LACNIC Region origin ASes announcing only one prefix:              2194
LACNIC Region transit ASes present in the Internet Routing Table:  1508
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        31
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  5580
Number of LACNIC addresses announced to Internet:             173070848
    Equivalent to 10 /8s, 80 /16s and 218 /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:                  20378
    Total AfriNIC prefixes after maximum aggregation:              4221
    AfriNIC Deaggregation factor:                                  4.83
Prefixes being announced from the AfriNIC address blocks:         26251
    Unique aggregates announced from the AfriNIC address blocks:   9173
AfriNIC Region origin ASes present in the Internet Routing Table:  1241
    AfriNIC Prefixes per ASN:                                     21.15
AfriNIC Region origin ASes announcing only one prefix:              426
AfriNIC Region transit ASes present in the Internet Routing Table:  245
Average AfriNIC Region AS path length visible:                      4.4
    Max AfriNIC Region AS path length visible:                       21
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  515
Number of AfriNIC addresses announced to Internet:            102993920
    Equivalent to 6 /8s, 35 /16s and 144 /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
  7545         4658        540     538  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538         4653       4192      74  ERX-CERNET-BKB China Education and Rese
  7552         3057       1241      49  VIETEL-AS-AP Viettel Group, VN
 45899         3006       1725     112  VNPT-AS-VN VNPT Corp, VN
  4766         2811      11127     767  KIXS-AS-KR Korea Telecom, KR
  9829         2751       1496     551  BSNL-NIB National Internet Backbone, IN
  9808         2437       8699      26  CMNET-GD Guangdong Mobile Communication
  9394         2394       4906      29  CTTNET China TieTong Telecommunications
  4755         2140        422     180  TATACOMM-AS TATA Communications formerl
 17974         2004        968      50  TELKOMNET-AS2-AP PT Telekomunikasi Indo

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         3575       1326      92  SHAW - Shaw Communications Inc., CA
 11492         3498        226     588  CABLEONE - CABLE ONE, INC., US
 22773         3310       2979     174  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 16509         2607       5392    1017  AMAZON-02 - Amazon.com, Inc., US
 16625         2304       1263    1738  AKAMAI-AS - Akamai Technologies, Inc., 
 20115         2151       2743     535  CHARTER-20115 - Charter Communications,
 18566         2132        405     108  MEGAPATH5-US - MegaPath Corporation, US
 30036         2094        348     248  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
  5650         2086       3074    1462  FRONTIER-FRTR - Frontier Communications
   209         2074       5079     583  CENTURYLINK-US-LEGACY-QWEST - CenturyLi

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         5302       1628     138  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  8551         3269        378      43  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2619        551    1908  AKAMAI-ASN1, US
 12389         2230       2221     633  ROSTELECOM-AS, RU
 34984         2059        339     531  TELLCOM-AS, TR
  9121         1727       1692      18  TTNET, TR
 13188         1604        100      46  TRIOLAN, UA
  9009         1351        147     760  M247, GB
  8402         1312        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         5564       3325     588  Uninet S.A. de C.V., MX
 10620         2886        437    1014  Telmex Colombia S.A., CO
 11830         2694        386      39  Instituto Costarricense de Electricidad
  6503         1564        433      54  Axtel, S.A.B. de C.V., MX
  7303         1406        932     231  Telecom Argentina S.A., AR
  6147         1284        377      29  Telefonica del Peru S.A.A., PE
 28573         1243       2244     184  CLARO S.A., BR
  3816         1029        511     115  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11172          931        143      66  Alestra, S. de R.L. de C.V., MX
 13999          916        528     244  Mega Cable, S.A. 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         1212        393      21  LINKdotNET-AS, EG
 37611          923        107       9  Afrihost, ZA
 36903          810        407     147  MT-MPLS, MA
 36992          806       1475      48  ETISALAT-MISR, EG
 24835          685        636      22  RAYA-AS, EG
  8452          642       1731      20  TE-AS TE-AS, EG
 29571          487         70      13  ORANGE-COTE-IVOIRE, CI
 37492          468        470      57  ORANGE-, TN
 15399          427         45      11  WANANCHI-, KE
 37342          419         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         5564       3325     588  Uninet S.A. de C.V., MX
 12479         5302       1628     138  UNI2-AS, ES
  7545         4658        540     538  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538         4653       4192      74  ERX-CERNET-BKB China Education and Rese
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  6327         3575       1326      92  SHAW - Shaw Communications Inc., CA
 11492         3498        226     588  CABLEONE - CABLE ONE, INC., US
 22773         3310       2979     174  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  8551         3269        378      43  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
  7552         3057       1241      49  VIETEL-AS-AP Viettel Group, VN

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

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

  ASN   No of nets  Net Savings  Description
 12479       5302         5164   UNI2-AS, ES
  4538       4653         4579   ERX-CERNET-BKB China Education and Research Net
  7545       4658         4120   TPG-INTERNET-AP TPG Telecom Limited, AU
 39891       3778         3758   ALJAWWALSTC-AS, SA
  6327       3575         3483   SHAW - Shaw Communications Inc., CA
  8551       3269         3226   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773       3310         3136   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  7552       3057         3008   VIETEL-AS-AP Viettel Group, VN
 11492       3498         2910   CABLEONE - CABLE ONE, INC., US
 45899       3006         2894   VNPT-AS-VN VNPT Corp, VN

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
  65544   DOCUMENT     117.239.163.0/24     65542       UNKNOWN
  64339   UNALLOCATED  143.0.108.0/22       18747       IFX18747 - IFX Corporation, US
  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&
  64011   UNALLOCATED  166.133.192.0/18     20057       ATT-MOBILITY-LLC-AS20057 - AT&
  64011   UNALLOCATED  166.184.9.0/24       20057       ATT-MOBILITY-LLC-AS20057 - AT&
  64011   UNALLOCATED  166.220.64.0/19      20057       ATT-MOBILITY-LLC-AS20057 - AT&
  64011   UNALLOCATED  166.220.96.0/19      20057       ATT-MOBILITY-LLC-AS20057 - AT&

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
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
43.255.80.0/24       36351    SOFTLAYER - SoftLayer Technologies Inc., US
43.255.82.0/24       36351    SOFTLAYER - SoftLayer Technologies Inc., US

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       /9:10      /10:36      /11:99      /12:291     
/13:567     /14:1132    /15:1906    /16:13361   /17:7896    /18:13869   
/19:25584   /20:39740   /21:46092   /22:91640   /23:74944   /24:415770  
/25:925     /26:820     /27:861     /28:20      /29:6       /30:7       
/31:0       /32:194     

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

   ASN   No of nets  Total ann.  Description
 12479     4185          5302    UNI2-AS, ES
  6327     3338          3575    SHAW - Shaw Communications Inc., CA
 39891     2946          3778    ALJAWWALSTC-AS, SA
 11492     2759          3498    CABLEONE - CABLE ONE, INC., US
  8551     2725          3269    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773     2550          3310    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 11830     2037          2694    Instituto Costarricense de Electricidad y Telec
 18566     2027          2132    MEGAPATH5-US - MegaPath Corporation, US
 30036     1841          2094    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
  5650     1758          2086    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)
----------------------------------------------

   1:1604      2:893       4:22        5:2801      6:47        7:1      
   8:1191     12:1868     13:313      14:1893     15:37       16:4      
  17:238      18:59       20:50       23:2602     24:2524     25:2      
  27:2546     31:2058     32:94       35:36       36:831      37:3026   
  38:1655     39:294      40:122      41:3125     42:725      43:1990   
  44:141      45:6574     46:3240     47:248      49:1337     50:1088   
  51:319      52:1085     54:350      55:1        56:6        57:41     
  58:1706     59:1056     60:492      61:2057     62:2083     63:1786   
  64:5074     65:2181     66:4809     67:2695     68:1172     69:3494   
  70:1153     71:600      72:2292     74:2748     75:420      76:543    
  77:1698     78:1758     79:2318     80:1636     81:1425     82:1111   
  83:905      84:1088     85:2150     86:552      87:1563     88:955    
  89:2433     90:205      91:6580     92:1234     93:2449     94:2505   
  95:3235     96:915      97:348      98:937      99:174     100:86     
 101:1225    102:386     103:19955   104:3563    105:249     106:867    
 107:1802    108:694     109:3668    110:1625    111:1876    112:1392   
 113:1411    114:1138    115:1726    116:1680    117:1917    118:2192   
 119:1621    120:1047    121:1029    122:2290    123:1641    124:1433   
 125:1956    128:1210    129:679     130:522     131:1643    132:715    
 133:218     134:1048    135:238     136:551     137:705     138:1946   
 139:836     140:571     141:810     142:801     143:1031    144:892    
 145:506     146:1248    147:811     148:1713    149:795     150:785    
 151:1005    152:1003    153:325     154:2554    155:972     156:1661   
 157:893     158:657     159:1909    160:1508    161:911     162:2672   
 163:781     164:1136    165:1572    166:438     167:1376    168:3268   
 169:869     170:3998    171:525     172:1094    173:2163    174:1005   
 175:885     176:2294    177:3947    178:2568    179:1285    180:2093   
 181:2430    182:2685    183:1050    184:1157    185:14722   186:3686   
 187:2412    188:2889    189:2008    190:8289    191:1453    192:10038  
 193:6552    194:5357    195:4049    196:2978    197:1738    198:5766   
 199:5988    200:7250    201:5063    202:10112   203:10155   204:4605   
 205:3008    206:3244    207:3258    208:3959    209:4223    210:3936   
 211:1984    212:3057    213:2888    214:1087    215:52      216:5955   
 217:2196    218:920     219:578     220:1846    221:995     222:994    
 223:1432   

End of report


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