Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 2 18:02:45 CST 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, AusNOG, SANOG, PacNOG,
MENOG, SAFNOG, SdNOG, BJNOG, CaribNOG 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 03 Jun, 2017

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

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

BGP routing table entries examined:                              650075
    Prefixes after maximum aggregation (per Origin AS):          253371
    Deaggregation factor:                                          2.57
    Unique aggregates announced (without unneeded subnets):      313766
Total ASes present in the Internet Routing Table:                 57397
    Prefixes per ASN:                                             11.33
Origin-only ASes present in the Internet Routing Table:           49676
Origin ASes announcing only one prefix:                           21966
Transit ASes present in the Internet Routing Table:                7721
Transit-only ASes present in the Internet Routing Table:            223
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      45
    Max AS path prepend of ASN ( 55644)                              41
Prefixes from unregistered ASNs in the Routing Table:                75
    Numnber of instances of unregistered ASNs:                       79
Number of 32-bit ASNs allocated by the RIRs:                      18845
Number of 32-bit ASNs visible in the Routing Table:               14651
Prefixes from 32-bit ASNs in the Routing Table:                   59470
Number of bogon 32-bit ASNs visible in the Routing Table:            62
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            371
Number of addresses announced to Internet:                   2848498020
    Equivalent to 169 /8s, 200 /16s and 161 /24s
    Percentage of available address space announced:               76.9
    Percentage of allocated address space announced:               76.9
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               98.6
Total number of prefixes smaller than registry allocations:      216741

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

Prefixes being announced by APNIC Region ASes:                   178319
    Total APNIC prefixes after maximum aggregation:               51254
    APNIC Deaggregation factor:                                    3.48
Prefixes being announced from the APNIC address blocks:          177534
    Unique aggregates announced from the APNIC address blocks:    73377
APNIC Region origin ASes present in the Internet Routing Table:    8157
    APNIC Prefixes per ASN:                                       21.76
APNIC Region origin ASes announcing only one prefix:               2280
APNIC Region transit ASes present in the Internet Routing Table:   1158
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         45
Number of APNIC region 32-bit ASNs visible in the Routing Table:   2982
Number of APNIC addresses announced to Internet:              763338596
    Equivalent to 45 /8s, 127 /16s and 159 /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:                    197726
    Total ARIN prefixes after maximum aggregation:                94486
    ARIN Deaggregation factor:                                     2.09
Prefixes being announced from the ARIN address blocks:           199729
    Unique aggregates announced from the ARIN address blocks:     91822
ARIN Region origin ASes present in the Internet Routing Table:    17896
    ARIN Prefixes per ASN:                                        11.16
ARIN Region origin ASes announcing only one prefix:                6624
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:    1998
Number of ARIN addresses announced to Internet:              1110645408
    Equivalent to 66 /8s, 51 /16s and 26 /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:                    175068
    Total RIPE prefixes after maximum aggregation:                85454
    RIPE Deaggregation factor:                                     2.05
Prefixes being announced from the RIPE address blocks:           170673
    Unique aggregates announced from the RIPE address blocks:    102684
RIPE Region origin ASes present in the Internet Routing Table:    24083
    RIPE Prefixes per ASN:                                         7.09
RIPE Region origin ASes announcing only one prefix:               11105
RIPE Region transit ASes present in the Internet Routing Table:    3395
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:    5875
Number of RIPE addresses announced to Internet:               711601280
    Equivalent to 42 /8s, 106 /16s and 44 /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:                   81723
    Total LACNIC prefixes after maximum aggregation:              18302
    LACNIC Deaggregation factor:                                   4.47
Prefixes being announced from the LACNIC address blocks:          82998
    Unique aggregates announced from the LACNIC address blocks:   38686
LACNIC Region origin ASes present in the Internet Routing Table:   5963
    LACNIC Prefixes per ASN:                                      13.92
LACNIC Region origin ASes announcing only one prefix:              1636
LACNIC Region transit ASes present in the Internet Routing Table:  1096
Average LACNIC Region AS path length visible:                       5.3
    Max LACNIC Region AS path length visible:                        32
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  3481
Number of LACNIC addresses announced to Internet:             170738656
    Equivalent to 10 /8s, 45 /16s and 67 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-266652 + 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:                  17121
    Total AfriNIC prefixes after maximum aggregation:              3825
    AfriNIC Deaggregation factor:                                  4.48
Prefixes being announced from the AfriNIC address blocks:         18770
    Unique aggregates announced from the AfriNIC address blocks:   6865
AfriNIC Region origin ASes present in the Internet Routing Table:  1047
    AfriNIC Prefixes per ASN:                                     17.93
AfriNIC Region origin ASes announcing only one prefix:              320
AfriNIC Region transit ASes present in the Internet Routing Table:  205
Average AfriNIC Region AS path length visible:                      4.8
    Max AfriNIC Region AS path length visible:                       18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  315
Number of AfriNIC addresses announced to Internet:             91747328
    Equivalent to 5 /8s, 119 /16s and 244 /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         5566       4190      74  ERX-CERNET-BKB China Education and Rese
  7545         3935        402     370  TPG-INTERNET-AP TPG Telecom Limited, AU
 17974         2999        903      72  TELKOMNET-AS2-AP PT Telekomunikasi Indo
  4766         2781      11137     759  KIXS-AS-KR Korea Telecom, KR
  9829         2733       1499     540  BSNL-NIB National Internet Backbone, IN
  9808         2215       8699      34  CMNET-GD Guangdong Mobile Communication
  4755         2089        422     222  TATACOMM-AS TATA Communications formerl
 45899         1987       1392     108  VNPT-AS-VN VNPT Corp, VN
  7552         1616       1100      66  VIETEL-AS-AP Viettel Corporation, VN
  9498         1579        361     138  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         3726       2968     153  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  6327         3410       1333      80  SHAW - Shaw Communications Inc., CA
 18566         2181        405     109  MEGAPATH5-US - MegaPath Corporation, US
  6389         2066       3671      39  BELLSOUTH-NET-BLK - BellSouth.net Inc.,
 20115         2006       2166     417  CHARTER-NET-HKY-NC - Charter Communicat
   209         1815       5069     638  CENTURYLINK-US-LEGACY-QWEST - Qwest Com
 16509         1805       3440     585  AMAZON-02 - Amazon.com, Inc., US
 30036         1778        324     316  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
  6983         1696        854     232  ITCDELTA - Earthlink, Inc., US
   701         1559      10578     636  UUNET - MCI Communications Services, In

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         3338        187      22  ALJAWWALSTC-AS, SA
  8551         3187        377      40  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2866        985    2058  AKAMAI-ASN1, US
 34984         2014        328     387  TELLCOM-AS, TR
  9121         1981       1691      17  TTNET, TR
 12479         1612       1044      52  UNI2-AS, ES
 13188         1595         99      62  TRIOLAN, UA
 12389         1507       1398     620  ROSTELECOM-AS, RU
  9198         1324        352      25  KAZTELECOM-AS, KZ
  6849         1225        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
 10620         3538        544     173  Telmex Colombia S.A., CO
  8151         2516       3400     573  Uninet S.A. de C.V., MX
 11830         2084        369      57  Instituto Costarricense de Electricidad
  7303         1566       1009     249  Telecom Argentina S.A., AR
  6503         1540        437      53  Axtel, S.A.B. de C.V., MX
  6147         1293        377      27  Telefonica del Peru S.A.A., PE
  3816         1012        494     186  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 28573         1010       2300     176  CLARO S.A., BR
 11172          906        126      81  Alestra, S. de R.L. de C.V., MX
 18881          895       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         1260        398      48  LINKdotNET-AS, EG
 36903          713        358     123  MT-MPLS, MA
 37611          713         67       7  Afrihost, ZA
 36992          627       1375      26  ETISALAT-MISR, EG
 24835          495        850      15  RAYA-AS, EG
 29571          419         36      10  CITelecom-AS, CI
 37492          407        320      75  ORANGE-, TN
  8452          402       1730      17  TE-AS TE-AS, EG
 15399          353         35       7  WANANCHI-, KE
  2018          297        327      74  TENET-1, ZA

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         5566       4190      74  ERX-CERNET-BKB China Education and Rese
  7545         3935        402     370  TPG-INTERNET-AP TPG Telecom Limited, AU
 22773         3726       2968     153  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 10620         3538        544     173  Telmex Colombia S.A., CO
  6327         3410       1333      80  SHAW - Shaw Communications Inc., CA
 39891         3338        187      22  ALJAWWALSTC-AS, SA
  8551         3187        377      40  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 17974         2999        903      72  TELKOMNET-AS2-AP PT Telekomunikasi Indo
 20940         2866        985    2058  AKAMAI-ASN1, US
  4766         2781      11137     759  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       3726         3573   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  7545       3935         3565   TPG-INTERNET-AP TPG Telecom Limited, AU
 10620       3538         3365   Telmex Colombia S.A., CO
  6327       3410         3330   SHAW - Shaw Communications Inc., CA
 39891       3338         3316   ALJAWWALSTC-AS, SA
  8551       3187         3147   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 17974       2999         2927   TELKOMNET-AS2-AP PT Telekomunikasi Indonesia, I
  9829       2733         2193   BSNL-NIB National Internet Backbone, IN
  9808       2215         2181   CMNET-GD Guangdong Mobile Communication Co.Ltd.
 18566       2181         2072   MEGAPATH5-US - MegaPath Corporation, US

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

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

Bad AS    Designation  Network              Transit AS  Description
  65001   PRIVATE      5.143.176.0/20       15468       KLGELECS-AS 38, Teatralnaya st
  65602   UNALLOCATED  8.225.192.0/24       30372       SUNESYS2 - Sunesys, LLC, US
  65001   PRIVATE      31.172.192.0/20      15468       KLGELECS-AS 38, Teatralnaya st
  65001   PRIVATE      31.172.192.0/21      15468       KLGELECS-AS 38, Teatralnaya st
  65001   PRIVATE      31.172.200.0/21      15468       KLGELECS-AS 38, Teatralnaya st
  65001   PRIVATE      31.172.208.0/21      15468       KLGELECS-AS 38, Teatralnaya st
  65001   PRIVATE      31.172.216.0/21      15468       KLGELECS-AS 38, Teatralnaya st
  65000   PRIVATE      31.219.177.0/25       8966       ETISALAT-AS P.O. Box 1150, Dub
  65000   PRIVATE      31.219.177.128/25     8966       ETISALAT-AS P.O. Box 1150, Dub
  66255   UNALLOCATED  45.6.244.0/22        16735       ALGAR TELECOM S/A, BR

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

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

Network            Origin AS  Description
14.128.15.0/24       55427    BROADLINK-AS-AP Broadlink Nepal, NP
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
27.100.7.0/24        56096    UNKNOWN
36.255.248.0/24      64091    UNKNOWN
36.255.250.0/24      64091    UNKNOWN
41.76.232.0/21       62878    XLITT - Xlitt, US
41.77.248.0/21       62878    XLITT - Xlitt, 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        /8:15       /9:13      /10:36      /11:104     /12:280     
/13:546     /14:1047    /15:1849    /16:13483   /17:7616    /18:13409   
/19:24727   /20:38578   /21:41118   /22:76987   /23:63986   /24:364065  
/25:832     /26:613     /27:639     /28:43      /29:32      /30:26      
/31:3       /32:28      

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

   ASN   No of nets  Total ann.  Description
  6327     3204          3410    SHAW - Shaw Communications Inc., CA
 39891     2898          3338    ALJAWWALSTC-AS, SA
 22773     2878          3726    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  8551     2652          3187    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 18566     2074          2181    MEGAPATH5-US - MegaPath Corporation, US
 30036     1574          1778    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
 11830     1474          2084    Instituto Costarricense de Electricidad y Telec
 10620     1468          3538    Telmex Colombia S.A., CO
  6389     1373          2066    BELLSOUTH-NET-BLK - BellSouth.net Inc., US
  9121     1373          1981    TTNET, TR

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

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

   1:1603      2:842       4:27        5:2426      6:34        8:1095   
  12:1826     13:122      14:1772     15:27       16:2        17:123    
  18:121      20:57       23:2295     24:1823     25:2        27:2445   
  31:1903     32:83       33:9        35:20       36:407      37:2594   
  38:1331     39:43       40:97       41:3007     42:468      43:1923   
  44:72       45:2696     46:2769     47:121      49:1207     50:985    
  51:19       52:819      54:361      55:3        56:4        57:42     
  58:1599     59:1043     60:390      61:1944     62:1552     63:1908   
  64:4578     65:2208     66:4529     67:2252     68:1217     69:3368   
  70:1147     71:582      72:2167     74:2683     75:387      76:430    
  77:1472     78:1441     79:2441     80:1390     81:1386     82:976    
  83:723      84:871      85:1754     86:481      87:1155     88:766    
  89:2063     90:176      91:6198     92:1022     93:2391     94:2371   
  95:2756     96:622      97:352      98:1031     99:90      100:155    
 101:1307    103:14912   104:2907    105:188     106:486     107:1646   
 108:816     109:3003    110:1411    111:1744    112:1185    113:1232   
 114:1036    115:1730    116:1787    117:1715    118:2156    119:1574   
 120:1029    121:1110    122:2278    123:1811    124:1523    125:1891   
 128:746     129:645     130:440     131:1386    132:518     133:191    
 134:643     135:226     136:455     137:439     138:1968    139:483    
 140:377     141:571     142:748     143:927     144:787     145:182    
 146:1031    147:676     148:1430    149:579     150:710     151:971    
 152:797     153:288     154:832     155:743     156:592     157:640    
 158:449     159:1460    160:663     161:746     162:2515    163:530    
 164:794     165:1211    166:385     167:1245    168:2653    169:779    
 170:3322    171:318     172:1018    173:1915    174:804     175:749    
 176:1845    177:4088    178:2498    179:1151    180:2204    181:1895   
 182:2362    183:996     184:860     185:9786    186:3117    187:2184   
 188:2705    189:1807    190:8202    191:1333    192:9422    193:5788   
 194:4655    195:3880    196:2125    197:1222    198:5510    199:5897   
 200:7458    201:4325    202:10406   203:9979    204:4481    205:2813   
 206:3016    207:3166    208:3977    209:4022    210:3963    211:2147   
 212:2842    213:2481    214:881     215:67      216:5736    217:2077   
 218:848     219:600     220:1653    221:912     222:757     223:1180   


End of report


More information about the NANOG mailing list