[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Aug 25 18:02:42 UTC 2017


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
MENOG, BJNOG, SDNOG, CMNOG, 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 26 Aug, 2017

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

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

BGP routing table entries examined:                              659134
    Prefixes after maximum aggregation (per Origin AS):          256684
    Deaggregation factor:                                          2.57
    Unique aggregates announced (without unneeded subnets):      319064
Total ASes present in the Internet Routing Table:                 58198
    Prefixes per ASN:                                             11.33
Origin-only ASes present in the Internet Routing Table:           50314
Origin ASes announcing only one prefix:                           22185
Transit ASes present in the Internet Routing Table:                7884
Transit-only ASes present in the Internet Routing Table:            228
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      56
    Max AS path prepend of ASN ( 55644)                              51
Prefixes from unregistered ASNs in the Routing Table:                62
    Number of instances of unregistered ASNs:                        65
Number of 32-bit ASNs allocated by the RIRs:                      19815
Number of 32-bit ASNs visible in the Routing Table:               15573
Prefixes from 32-bit ASNs in the Routing Table:                   63688
Number of bogon 32-bit ASNs visible in the Routing Table:            24
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            328
Number of addresses announced to Internet:                   2851451744
    Equivalent to 169 /8s, 245 /16s and 179 /24s
    Percentage of available address space announced:               77.0
    Percentage of allocated address space announced:               77.0
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               98.7
Total number of prefixes smaller than registry allocations:      219440

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

Prefixes being announced by APNIC Region ASes:                   179395
    Total APNIC prefixes after maximum aggregation:               51805
    APNIC Deaggregation factor:                                    3.46
Prefixes being announced from the APNIC address blocks:          178370
    Unique aggregates announced from the APNIC address blocks:    74369
APNIC Region origin ASes present in the Internet Routing Table:    8295
    APNIC Prefixes per ASN:                                       21.50
APNIC Region origin ASes announcing only one prefix:               2304
APNIC Region transit ASes present in the Internet Routing Table:   1176
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         56
Number of APNIC region 32-bit ASNs visible in the Routing Table:   3154
Number of APNIC addresses announced to Internet:              764692960
    Equivalent to 45 /8s, 148 /16s and 73 /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:                    201001
    Total ARIN prefixes after maximum aggregation:                95586
    ARIN Deaggregation factor:                                     2.10
Prefixes being announced from the ARIN address blocks:           202791
    Unique aggregates announced from the ARIN address blocks:     93664
ARIN Region origin ASes present in the Internet Routing Table:    17961
    ARIN Prefixes per ASN:                                        11.29
ARIN Region origin ASes announcing only one prefix:                6638
ARIN Region transit ASes present in the Internet Routing Table:    1776
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          23
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2161
Number of ARIN addresses announced to Internet:              1108661024
    Equivalent to 66 /8s, 20 /16s and 211 /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:                    176705
    Total RIPE prefixes after maximum aggregation:                86571
    RIPE Deaggregation factor:                                     2.04
Prefixes being announced from the RIPE address blocks:           172575
    Unique aggregates announced from the RIPE address blocks:    104278
RIPE Region origin ASes present in the Internet Routing Table:    24326
    RIPE Prefixes per ASN:                                         7.09
RIPE Region origin ASes announcing only one prefix:               11177
RIPE Region transit ASes present in the Internet Routing Table:    3456
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    6118
Number of RIPE addresses announced to Internet:               713008256
    Equivalent to 42 /8s, 127 /16s and 164 /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:                   84765
    Total LACNIC prefixes after maximum aggregation:              18849
    LACNIC Deaggregation factor:                                   4.50
Prefixes being announced from the LACNIC address blocks:          86023
    Unique aggregates announced from the LACNIC address blocks:   39482
LACNIC Region origin ASes present in the Internet Routing Table:   6288
    LACNIC Prefixes per ASN:                                      13.68
LACNIC Region origin ASes announcing only one prefix:              1726
LACNIC Region transit ASes present in the Internet Routing Table:  1161
Average LACNIC Region AS path length visible:                       5.4
    Max LACNIC Region AS path length visible:                        36
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  3801
Number of LACNIC addresses announced to Internet:             171152864
    Equivalent to 10 /8s, 51 /16s and 149 /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:                  17204
    Total AfriNIC prefixes after maximum aggregation:              3818
    AfriNIC Deaggregation factor:                                  4.51
Prefixes being announced from the AfriNIC address blocks:         19047
    Unique aggregates announced from the AfriNIC address blocks:   7005
AfriNIC Region origin ASes present in the Internet Routing Table:  1068
    AfriNIC Prefixes per ASN:                                     17.83
AfriNIC Region origin ASes announcing only one prefix:              339
AfriNIC Region transit ASes present in the Internet Routing Table:  210
Average AfriNIC Region AS path length visible:                      4.8
    Max AfriNIC Region AS path length visible:                       21
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  339
Number of AfriNIC addresses announced to Internet:             93467136
    Equivalent to 5 /8s, 146 /16s and 50 /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         5412       4192      87  ERX-CERNET-BKB China Education and Rese
  7545         3980        407     393  TPG-INTERNET-AP TPG Telecom Limited, AU
 17974         2962        902      73  TELKOMNET-AS2-AP PT Telekomunikasi Indo
  4766         2839      11126     752  KIXS-AS-KR Korea Telecom, KR
  9829         2754       1498     549  BSNL-NIB National Internet Backbone, IN
  9808         2353       8699      32  CMNET-GD Guangdong Mobile Communication
 45899         2292       1465     114  VNPT-AS-VN VNPT Corp, VN
  4755         2099        423     221  TATACOMM-AS TATA Communications formerl
  7552         1706       1105      70  VIETEL-AS-AP Viettel Corporation, VN
  9498         1623        361     144  BBIL-AP BHARTI Airtel Ltd., IN

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
 22773         3808       2952     158  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  6327         3468       1341      87  SHAW - Shaw Communications Inc., CA
 18566         2205        405     109  MEGAPATH5-US - MegaPath Corporation, US
  6389         2047       3671      39  BELLSOUTH-NET-BLK - BellSouth.net Inc.,
 20115         2030       2233     429  CHARTER-NET-HKY-NC - Charter Communicat
   209         1887       5066     642  CENTURYLINK-US-LEGACY-QWEST - Qwest Com
 30036         1828        329     279  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
 16509         1822       3927     529  AMAZON-02 - Amazon.com, Inc., US
   701         1715      10557     629  UUNET - MCI Communications Services, In
  6983         1694        854     229  ITCDELTA - Earthlink, 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
 39891         3387        186      23  ALJAWWALSTC-AS, SA
 20940         2969        959    2134  AKAMAI-ASN1, US
  8551         2540        377      41  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 34984         2058        332     424  TELLCOM-AS, TR
  9121         1811       1691      17  TTNET, TR
 12389         1695       1604     670  ROSTELECOM-AS, RU
 12479         1652       1048      59  UNI2-AS, ES
 13188         1602        100      55  TRIOLAN, UA
  6849         1225        355      21  UKRTELNET, UA
  8402         1159        544      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
 10620         3549        542     217  Telmex Colombia S.A., CO
  8151         2982       3424     581  Uninet S.A. de C.V., MX
 11830         2109        370      65  Instituto Costarricense de Electricidad
  6503         1606        437      53  Axtel, S.A.B. de C.V., MX
  7303         1561       1019     245  Telecom Argentina S.A., AR
  6147         1218        377      27  Telefonica del Peru S.A.A., PE
  3816         1026        504      95  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 28573          954       2279     185  CLARO S.A., BR
 11172          917        126      86  Alestra, S. de R.L. de C.V., MX
 18881          898       1052      23  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         1185        398      48  LINKdotNET-AS, EG
 37611          750         91       8  Afrihost, ZA
 36903          711        357     130  MT-MPLS, MA
 36992          657       1383      29  ETISALAT-MISR, EG
 24835          499        850      15  RAYA-AS, EG
 29571          421         36      10  CITelecom-AS, CI
 37492          409        353      76  ORANGE-, TN
 15399          361         35       7  WANANCHI-, KE
  2018          304        327      74  TENET-1, ZA
 23889          283        103      14  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
  4538         5412       4192      87  ERX-CERNET-BKB China Education and Rese
  7545         3980        407     393  TPG-INTERNET-AP TPG Telecom Limited, AU
 22773         3808       2952     158  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 10620         3549        542     217  Telmex Colombia S.A., CO
  6327         3468       1341      87  SHAW - Shaw Communications Inc., CA
 39891         3387        186      23  ALJAWWALSTC-AS, SA
  8151         2982       3424     581  Uninet S.A. de C.V., MX
 20940         2969        959    2134  AKAMAI-ASN1, US
 17974         2962        902      73  TELKOMNET-AS2-AP PT Telekomunikasi Indo
  4766         2839      11126     752  KIXS-AS-KR Korea Telecom, KR

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

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

  ASN   No of nets  Net Savings  Description
 22773       3808         3650   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  7545       3980         3587   TPG-INTERNET-AP TPG Telecom Limited, AU
  6327       3468         3381   SHAW - Shaw Communications Inc., CA
 39891       3387         3364   ALJAWWALSTC-AS, SA
 10620       3549         3332   Telmex Colombia S.A., CO
 17974       2962         2889   TELKOMNET-AS2-AP PT Telekomunikasi Indonesia, I
  8551       2540         2499   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  8151       2982         2401   Uninet S.A. de C.V., MX
  9808       2353         2321   CMNET-GD Guangdong Mobile Communication Co.Ltd.
  9829       2754         2205   BSNL-NIB National Internet Backbone, IN

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

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS    Designation  Network              Transit AS  Description
  65602   UNALLOCATED  8.225.192.0/24       30372       SUNESYS2 - Sunesys, LLC, US
  64525   PRIVATE      45.119.143.0/24     133275       GIGANTIC-AS Gigantic Infotel P
  64525   PRIVATE      45.125.62.0/24      133275       GIGANTIC-AS Gigantic Infotel P
  65530   PRIVATE      45.249.40.0/24      133720       SOFTCALLCOC-AS SOFT CALL CUST-
  65001   PRIVATE      46.237.40.0/21       13118       ASN-YARTELECOM PJSC Rostelecom
  65534   PRIVATE      58.68.109.0/24       10201       DWL-AS-IN Dishnet Wireless Lim
  64513   PRIVATE      62.150.101.0/24       9155       QNET Kuwait, KW
290012147   UNALLOCATED  63.65.43.0/24         7046       RFC2270-UUNET-CUSTOMER - MCI C
  65538   DOCUMENT     64.27.253.0/24        1273       CW Vodafone Group PLC, GB
  65346   PRIVATE      94.50.36.0/22        31094       TTKNET Tyumen, Russia, RU

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

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

Network            Origin AS  Description
14.192.48.0/24      134833    LIHGL-HK LANLIAN INTERNATIONAL HOLDING GROUP LIMITE
14.192.49.0/24      134833    LIHGL-HK LANLIAN INTERNATIONAL HOLDING GROUP LIMITE
14.192.50.0/24      134833    LIHGL-HK LANLIAN INTERNATIONAL HOLDING GROUP LIMITE
14.192.51.0/24      134833    LIHGL-HK LANLIAN INTERNATIONAL HOLDING GROUP LIMITE
23.226.112.0/20      62788    UNKNOWN
27.100.7.0/24        56096    UNKNOWN
41.76.232.0/21       62878    XLITT - Xlitt, US
41.77.248.0/21       62878    XLITT - Xlitt, US
41.78.180.0/23       37265    -Reserved AS-, ZZ
41.79.12.0/22        37306    -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        /8:15       /9:13      /10:36      /11:104     /12:284     
/13:553     /14:1052    /15:1847    /16:13417   /17:7668    /18:13406   
/19:24731   /20:38877   /21:41696   /22:78797   /23:65148   /24:369251  
/25:850     /26:633     /27:650     /28:37      /29:23      /30:17      
/31:2       /32:27      

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

   ASN   No of nets  Total ann.  Description
  6327     3265          3468    SHAW - Shaw Communications Inc., CA
 22773     2996          3808    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 39891     2946          3387    ALJAWWALSTC-AS, SA
 18566     2089          2205    MEGAPATH5-US - MegaPath Corporation, US
  8551     2005          2540    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036     1610          1828    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
 11830     1499          2109    Instituto Costarricense de Electricidad y Telec
 10620     1495          3549    Telmex Colombia S.A., CO
 11492     1411          1591    CABLEONE - CABLE ONE, INC., US
  6389     1358          2047    BELLSOUTH-NET-BLK - BellSouth.net Inc., US

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

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

   1:1558      2:827       4:18        5:2447      6:31        7:1      
   8:1052     12:1855     13:142      14:1703     15:28       16:2      
  17:193      18:90       20:61       23:2438     24:1920     25:2      
  27:2378     29:1        31:1926     32:84       33:18       35:21     
  36:390      37:2354     38:1353     39:68       40:98       41:2957   
  42:464      43:1961     44:78       45:3021     46:2797     47:163    
  49:1257     50:989      51:19       52:815      54:364      55:6      
  56:4        57:44       58:1559     59:1009     60:325      61:1923   
  62:1702     63:1903     64:4647     65:2210     66:4567     67:2279   
  68:1231     69:3380     70:1179     71:616      72:2219     74:2712   
  75:388      76:428      77:1497     78:1443     79:1940     80:1406   
  81:1395     82:1001     83:728      84:964      85:1830     86:465    
  87:1198     88:763      89:2179     90:166      91:6205     92:1008   
  93:2399     94:2345     95:2663     96:655      97:354      98:1066   
  99:98      100:153     101:1469    102:1       103:15666   104:3026   
 105:187     106:550     107:1767    108:822     109:2910    110:1466   
 111:1748    112:1241    113:1247    114:1078    115:1585    116:1671   
 117:1768    118:2155    119:1658    120:734     121:1060    122:2330   
 123:1819    124:1480    125:1785    128:883     129:665     130:441    
 131:1472    132:572     133:190     134:682     135:218     136:452    
 137:480     138:1924    139:521     140:409     141:651     142:773    
 143:894     144:810     145:184     146:1097    147:705     148:1500   
 149:584     150:731     151:987     152:731     153:298     154:871    
 155:755     156:667     157:665     158:481     159:1559    160:750    
 161:747     162:2521    163:500     164:960     165:1404    166:381    
 167:1295    168:2987    169:843     170:3515    171:369     172:996    
 173:1994    174:813     175:749     176:1894    177:3947    178:2553   
 179:1145    180:2198    181:1978    182:2430    183:769     184:878    
 185:10588   186:3317    187:2187    188:2579    189:1809    190:8361   
 191:1329    192:9579    193:5823    194:4727    195:3924    196:2107   
 197:1360    198:5532    199:5890    200:7600    201:4347    202:10361  
 203:9990    204:4549    205:2840    206:3069    207:3157    208:3957   
 209:3996    210:3956    211:2056    212:2883    213:2524    214:853    
 215:66      216:5877    217:2132    218:899     219:601     220:1685   
 221:909     222:749     223:1196   

End of report


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