Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri May 26 18:02:40 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, 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 27 May, 2017

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

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

BGP routing table entries examined:                              648754
    Prefixes after maximum aggregation (per Origin AS):          253024
    Deaggregation factor:                                          2.56
    Unique aggregates announced (without unneeded subnets):      313436
Total ASes present in the Internet Routing Table:                 57333
    Prefixes per ASN:                                             11.32
Origin-only ASes present in the Internet Routing Table:           49627
Origin ASes announcing only one prefix:                           21973
Transit ASes present in the Internet Routing Table:                7706
Transit-only ASes present in the Internet Routing Table:            219
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      41
    Max AS path prepend of ASN ( 55644)                              36
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:                      18760
Number of 32-bit ASNs visible in the Routing Table:               14576
Prefixes from 32-bit ASNs in the Routing Table:                   58938
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:            358
Number of addresses announced to Internet:                   2847714468
    Equivalent to 169 /8s, 188 /16s and 172 /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:      216335

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

Prefixes being announced by APNIC Region ASes:                   178024
    Total APNIC prefixes after maximum aggregation:               51257
    APNIC Deaggregation factor:                                    3.47
Prefixes being announced from the APNIC address blocks:          177223
    Unique aggregates announced from the APNIC address blocks:    73267
APNIC Region origin ASes present in the Internet Routing Table:    8135
    APNIC Prefixes per ASN:                                       21.79
APNIC Region origin ASes announcing only one prefix:               2280
APNIC Region transit ASes present in the Internet Routing Table:   1140
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         41
Number of APNIC region 32-bit ASNs visible in the Routing Table:   2959
Number of APNIC addresses announced to Internet:              763318372
    Equivalent to 45 /8s, 127 /16s and 80 /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:                    197715
    Total ARIN prefixes after maximum aggregation:                94329
    ARIN Deaggregation factor:                                     2.10
Prefixes being announced from the ARIN address blocks:           199790
    Unique aggregates announced from the ARIN address blocks:     91726
ARIN Region origin ASes present in the Internet Routing Table:    17910
    ARIN Prefixes per ASN:                                        11.16
ARIN Region origin ASes announcing only one prefix:                6628
ARIN Region transit ASes present in the Internet Routing Table:    1780
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:    1992
Number of ARIN addresses announced to Internet:              1110674400
    Equivalent to 66 /8s, 51 /16s and 139 /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:                    174659
    Total RIPE prefixes after maximum aggregation:                85397
    RIPE Deaggregation factor:                                     2.05
Prefixes being announced from the RIPE address blocks:           170272
    Unique aggregates announced from the RIPE address blocks:    102587
RIPE Region origin ASes present in the Internet Routing Table:    24057
    RIPE Prefixes per ASN:                                         7.08
RIPE Region origin ASes announcing only one prefix:               11101
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:    5858
Number of RIPE addresses announced to Internet:               711906176
    Equivalent to 42 /8s, 110 /16s and 211 /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:                   81034
    Total LACNIC prefixes after maximum aggregation:              18186
    LACNIC Deaggregation factor:                                   4.46
Prefixes being announced from the LACNIC address blocks:          82282
    Unique aggregates announced from the LACNIC address blocks:   38694
LACNIC Region origin ASes present in the Internet Routing Table:   5939
    LACNIC Prefixes per ASN:                                      13.85
LACNIC Region origin ASes announcing only one prefix:              1640
LACNIC Region transit ASes present in the Internet Routing Table:  1096
Average LACNIC Region AS path length visible:                       5.4
    Max LACNIC Region AS path length visible:                        31
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  3454
Number of LACNIC addresses announced to Internet:             170647520
    Equivalent to 10 /8s, 43 /16s and 223 /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:                  17205
    Total AfriNIC prefixes after maximum aggregation:              3805
    AfriNIC Deaggregation factor:                                  4.52
Prefixes being announced from the AfriNIC address blocks:         18829
    Unique aggregates announced from the AfriNIC address blocks:   6841
AfriNIC Region origin ASes present in the Internet Routing Table:  1045
    AfriNIC Prefixes per ASN:                                     18.02
AfriNIC Region origin ASes announcing only one prefix:              323
AfriNIC Region transit ASes present in the Internet Routing Table:  203
Average AfriNIC Region AS path length visible:                      4.8
    Max AfriNIC Region AS path length visible:                       20
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  313
Number of AfriNIC addresses announced to Internet:             90746880
    Equivalent to 5 /8s, 104 /16s and 176 /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         5571       4190      74  ERX-CERNET-BKB China Education and Rese
  7545         3935        402     370  TPG-INTERNET-AP TPG Telecom Limited, AU
 17974         2987        903      72  TELKOMNET-AS2-AP PT Telekomunikasi Indo
  4766         2752      11136     758  KIXS-AS-KR Korea Telecom, KR
  9829         2736       1499     539  BSNL-NIB National Internet Backbone, IN
  9808         2214       8699      34  CMNET-GD Guangdong Mobile Communication
  4755         2088        422     224  TATACOMM-AS TATA Communications formerl
 45899         1990       1392     108  VNPT-AS-VN VNPT Corp, VN
  7552         1614       1100      66  VIETEL-AS-AP Viettel Corporation, VN
  9583         1575        121     542  SIFY-AS-IN Sify Limited, 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         4103       2969     154  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  6327         3409       1333      80  SHAW - Shaw Communications Inc., CA
 18566         2181        405     109  MEGAPATH5-US - MegaPath Corporation, US
  6389         2068       3671      39  BELLSOUTH-NET-BLK - BellSouth.net Inc.,
 20115         2006       2166     417  CHARTER-NET-HKY-NC - Charter Communicat
   209         1819       5068     639  CENTURYLINK-US-LEGACY-QWEST - Qwest Com
 16509         1803       3440     582  AMAZON-02 - Amazon.com, Inc., US
 30036         1772        324     317  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
  6983         1691        854     230  ITCDELTA - Earthlink, Inc., US
   701         1560      10578     638  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         3185        377      40  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2891       1001    2072  AKAMAI-ASN1, US
 34984         2013        328     386  TELLCOM-AS, TR
  9121         1979       1691      17  TTNET, TR
 13188         1596         99      56  TRIOLAN, UA
 12479         1594       1044      52  UNI2-AS, ES
 12389         1502       1398     620  ROSTELECOM-AS, RU
  9198         1323        352      25  KAZTELECOM-AS, KZ
  6849         1157        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         3542        545     156  Telmex Colombia S.A., CO
  8151         2520       3403     566  Uninet S.A. de C.V., MX
 11830         2085        369      57  Instituto Costarricense de Electricidad
  7303         1571       1009     248  Telecom Argentina S.A., AR
  6503         1540        437      53  Axtel, S.A.B. de C.V., MX
  6147         1175        377      27  Telefonica del Peru S.A.A., PE
  3816         1015        496     183  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 28573         1009       2284     175  CLARO S.A., BR
 11172          921        126      79  Alestra, S. de R.L. de C.V., MX
 18881          894       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         1256        398      48  LINKdotNET-AS, EG
 36903          713        358     123  MT-MPLS, MA
 37611          711         67       7  Afrihost, ZA
 36992          628       1375      26  ETISALAT-MISR, EG
 24835          496        850      15  RAYA-AS, EG
 29571          419         36      10  CITelecom-AS, CI
 37492          406        319      74  ORANGE-, TN
  8452          397       1730      17  TE-AS TE-AS, EG
 15399          352         35       7  WANANCHI-, KE
  2018          296        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         5571       4190      74  ERX-CERNET-BKB China Education and Rese
 22773         4103       2969     154  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  7545         3935        402     370  TPG-INTERNET-AP TPG Telecom Limited, AU
 10620         3542        545     156  Telmex Colombia S.A., CO
  6327         3409       1333      80  SHAW - Shaw Communications Inc., CA
 39891         3338        187      22  ALJAWWALSTC-AS, SA
  8551         3185        377      40  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 17974         2987        903      72  TELKOMNET-AS2-AP PT Telekomunikasi Indo
 20940         2891       1001    2072  AKAMAI-ASN1, US
  4766         2752      11136     758  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       4103         3949   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  7545       3935         3565   TPG-INTERNET-AP TPG Telecom Limited, AU
 10620       3542         3386   Telmex Colombia S.A., CO
  6327       3409         3329   SHAW - Shaw Communications Inc., CA
 39891       3338         3316   ALJAWWALSTC-AS, SA
  8551       3185         3145   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 17974       2987         2915   TELKOMNET-AS2-AP PT Telekomunikasi Indonesia, I
  9829       2736         2197   BSNL-NIB National Internet Backbone, IN
  9808       2214         2180   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
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      203496    AB-TELECOM, RU
41.77.248.0/21      203496    AB-TELECOM, RU
41.78.180.0/23       37265    -Reserved AS-, ZZ
41.242.132.0/23     203496    AB-TELECOM, RU
43.228.144.0/22       9829    BSNL-NIB National Internet Backbone, IN
43.241.246.0/24     132122    ANJNAY-IN Anjnay Information Technology India (P) L

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     /14:1045    /15:1851    /16:13491   /17:7620    /18:13382   
/19:24721   /20:38519   /21:41070   /22:76799   /23:63885   /24:363158  
/25:827     /26:619     /27:641     /28:45      /29:32      /30:26      
/31:1       /32:28      

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

   ASN   No of nets  Total ann.  Description
 22773     3256          4103    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  6327     3203          3409    SHAW - Shaw Communications Inc., CA
 39891     2898          3338    ALJAWWALSTC-AS, SA
  8551     2650          3185    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 18566     2074          2181    MEGAPATH5-US - MegaPath Corporation, US
 30036     1569          1772    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
 11830     1474          2085    Instituto Costarricense de Electricidad y Telec
 10620     1468          3542    Telmex Colombia S.A., CO
  6389     1375          2068    BELLSOUTH-NET-BLK - BellSouth.net Inc., US
  9121     1374          1979    TTNET, TR

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

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

   1:1605      2:842       4:27        5:2424      6:34        8:1093   
  12:1825     13:119      14:1779     15:26       16:2        17:122    
  18:121      20:57       23:2286     24:1840     25:2        27:2407   
  31:1911     32:83       33:9        35:20       36:407      37:2582   
  38:1331     39:42       40:97       41:3016     42:471      43:1919   
  44:73       45:2681     46:2733     47:120      49:1201     50:985    
  51:19       52:816      54:363      55:4        56:4        57:42     
  58:1587     59:1039     60:391      61:1945     62:1541     63:1920   
  64:4575     65:2210     66:4530     67:2256     68:1230     69:3373   
  70:1321     71:584      72:2226     74:2676     75:385      76:433    
  77:1485     78:1447     79:2438     80:1394     81:1405     82:989    
  83:721      84:871      85:1748     86:483      87:1157     88:762    
  89:2065     90:172      91:6173     92:1019     93:2389     94:2330   
  95:2750     96:608      97:352      98:1033     99:90      100:158    
 101:1252    103:14811   104:2898    105:182     106:486     107:1645   
 108:815     109:3014    110:1416    111:1745    112:1177    113:1227   
 114:1031    115:1729    116:1786    117:1719    118:2154    119:1590   
 120:1024    121:1107    122:2307    123:1810    124:1529    125:1908   
 128:757     129:643     130:441     131:1357    132:526     133:192    
 134:639     135:222     136:455     137:434     138:1955    139:479    
 140:379     141:568     142:749     143:934     144:785     145:182    
 146:1028    147:670     148:1435    149:578     150:712     151:970    
 152:798     153:297     154:822     155:743     156:593     157:636    
 158:449     159:1457    160:637     161:754     162:2514    163:525    
 164:789     165:1204    166:382     167:1258    168:2609    169:781    
 170:3297    171:320     172:1017    173:1879    174:840     175:751    
 176:1842    177:4016    178:2487    179:1139    180:2199    181:1867   
 182:2353    183:998     184:866     185:9727    186:3073    187:2200   
 188:2701    189:1812    190:7910    191:1322    192:9409    193:5789   
 194:4657    195:3868    196:2130    197:1263    198:5524    199:5884   
 200:7362    201:4286    202:10370   203:9969    204:4475    205:2803   
 206:3015    207:3141    208:3983    209:4003    210:3955    211:2138   
 212:2828    213:2496    214:879     215:66      216:5725    217:2076   
 218:842     219:602     220:1655    221:911     222:758     223:1179   


End of report


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