[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Aug 18 18:02:39 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 19 Aug, 2017

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

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

BGP routing table entries examined:                              657966
    Prefixes after maximum aggregation (per Origin AS):          256321
    Deaggregation factor:                                          2.57
    Unique aggregates announced (without unneeded subnets):      318644
Total ASes present in the Internet Routing Table:                 58117
    Prefixes per ASN:                                             11.32
Origin-only ASes present in the Internet Routing Table:           50261
Origin ASes announcing only one prefix:                           22199
Transit ASes present in the Internet Routing Table:                7856
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:                                      56
    Max AS path prepend of ASN ( 55644)                              51
Prefixes from unregistered ASNs in the Routing Table:                65
    Number of instances of unregistered ASNs:                        69
Number of 32-bit ASNs allocated by the RIRs:                      19739
Number of 32-bit ASNs visible in the Routing Table:               15504
Prefixes from 32-bit ASNs in the Routing Table:                   63312
Number of bogon 32-bit ASNs visible in the Routing Table:            26
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            329
Number of addresses announced to Internet:                   2852057444
    Equivalent to 169 /8s, 254 /16s and 241 /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:      219103

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

Prefixes being announced by APNIC Region ASes:                   179034
    Total APNIC prefixes after maximum aggregation:               51785
    APNIC Deaggregation factor:                                    3.46
Prefixes being announced from the APNIC address blocks:          178012
    Unique aggregates announced from the APNIC address blocks:    74353
APNIC Region origin ASes present in the Internet Routing Table:    8286
    APNIC Prefixes per ASN:                                       21.48
APNIC Region origin ASes announcing only one prefix:               2302
APNIC Region transit ASes present in the Internet Routing Table:   1174
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         56
Number of APNIC region 32-bit ASNs visible in the Routing Table:   3139
Number of APNIC addresses announced to Internet:              764417508
    Equivalent to 45 /8s, 144 /16s and 21 /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:                    200851
    Total ARIN prefixes after maximum aggregation:                95479
    ARIN Deaggregation factor:                                     2.10
Prefixes being announced from the ARIN address blocks:           202628
    Unique aggregates announced from the ARIN address blocks:     93514
ARIN Region origin ASes present in the Internet Routing Table:    17958
    ARIN Prefixes per ASN:                                        11.28
ARIN Region origin ASes announcing only one prefix:                6646
ARIN Region transit ASes present in the Internet Routing Table:    1775
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:    2155
Number of ARIN addresses announced to Internet:              1109948448
    Equivalent to 66 /8s, 40 /16s and 120 /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:                    176258
    Total RIPE prefixes after maximum aggregation:                86469
    RIPE Deaggregation factor:                                     2.04
Prefixes being announced from the RIPE address blocks:           172136
    Unique aggregates announced from the RIPE address blocks:    104075
RIPE Region origin ASes present in the Internet Routing Table:    24295
    RIPE Prefixes per ASN:                                         7.09
RIPE Region origin ASes announcing only one prefix:               11175
RIPE Region transit ASes present in the Internet Routing Table:    3439
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:    6095
Number of RIPE addresses announced to Internet:               712878720
    Equivalent to 42 /8s, 125 /16s and 170 /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:                   84593
    Total LACNIC prefixes after maximum aggregation:              18725
    LACNIC Deaggregation factor:                                   4.52
Prefixes being announced from the LACNIC address blocks:          85858
    Unique aggregates announced from the LACNIC address blocks:   39440
LACNIC Region origin ASes present in the Internet Routing Table:   6264
    LACNIC Prefixes per ASN:                                      13.71
LACNIC Region origin ASes announcing only one prefix:              1742
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:                        24
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  3780
Number of LACNIC addresses announced to Internet:             171061472
    Equivalent to 10 /8s, 50 /16s and 48 /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:                  17163
    Total AfriNIC prefixes after maximum aggregation:              3807
    AfriNIC Deaggregation factor:                                  4.51
Prefixes being announced from the AfriNIC address blocks:         19003
    Unique aggregates announced from the AfriNIC address blocks:   6990
AfriNIC Region origin ASes present in the Internet Routing Table:  1063
    AfriNIC Prefixes per ASN:                                     17.88
AfriNIC Region origin ASes announcing only one prefix:              333
AfriNIC Region transit ASes present in the Internet Routing Table:  208
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:  335
Number of AfriNIC addresses announced to Internet:             93287936
    Equivalent to 5 /8s, 143 /16s and 118 /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         5438       4192      87  ERX-CERNET-BKB China Education and Rese
  7545         4004        408     395  TPG-INTERNET-AP TPG Telecom Limited, AU
 17974         2966        902      73  TELKOMNET-AS2-AP PT Telekomunikasi Indo
  4766         2840      11124     749  KIXS-AS-KR Korea Telecom, KR
  9829         2753       1498     549  BSNL-NIB National Internet Backbone, IN
  9808         2358       8699      32  CMNET-GD Guangdong Mobile Communication
 45899         2293       1453     111  VNPT-AS-VN VNPT Corp, VN
  4755         2095        422     220  TATACOMM-AS TATA Communications formerl
  7552         1686       1106      71  VIETEL-AS-AP Viettel Corporation, VN
  9498         1625        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         3816       2952     159  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  6327         3456       1341      88  SHAW - Shaw Communications Inc., CA
 18566         2205        405     109  MEGAPATH5-US - MegaPath Corporation, US
  6389         2063       3671      39  BELLSOUTH-NET-BLK - BellSouth.net Inc.,
 20115         2026       2214     434  CHARTER-NET-HKY-NC - Charter Communicat
   209         1859       5065     635  CENTURYLINK-US-LEGACY-QWEST - Qwest Com
 30036         1826        329     279  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
 16509         1819       3862     538  AMAZON-02 - Amazon.com, Inc., US
   701         1718      10559     628  UUNET - MCI Communications Services, In
  6983         1693        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         2971        968    2135  AKAMAI-ASN1, US
  8551         2546        377      41  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 34984         2057        332     424  TELLCOM-AS, TR
  9121         1909       1691      17  TTNET, TR
 12479         1653       1048      59  UNI2-AS, ES
 12389         1607       1536     668  ROSTELECOM-AS, RU
 13188         1602        100      55  TRIOLAN, UA
  6849         1225        355      21  UKRTELNET, UA
  8402         1169        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         3547        542     217  Telmex Colombia S.A., CO
  8151         2843       3410     583  Uninet S.A. de C.V., MX
 11830         2109        370      65  Instituto Costarricense de Electricidad
  7303         1560       1018     247  Telecom Argentina S.A., AR
  6503         1555        437      53  Axtel, S.A.B. de C.V., MX
  6147         1214        377      27  Telefonica del Peru S.A.A., PE
  3816         1026        504      95  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 28573          953       2278     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         1198        398      48  LINKdotNET-AS, EG
 37611          748         91       8  Afrihost, ZA
 36903          711        357     130  MT-MPLS, MA
 36992          679       1378      29  ETISALAT-MISR, EG
 24835          499        850      15  RAYA-AS, EG
 29571          421         36      10  CITelecom-AS, CI
 37492          407        321      75  ORANGE-, TN
 15399          357         35       7  WANANCHI-, KE
  2018          305        327      74  TENET-1, ZA
 23889          278        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         5438       4192      87  ERX-CERNET-BKB China Education and Rese
  7545         4004        408     395  TPG-INTERNET-AP TPG Telecom Limited, AU
 22773         3816       2952     159  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 10620         3547        542     217  Telmex Colombia S.A., CO
  6327         3456       1341      88  SHAW - Shaw Communications Inc., CA
 39891         3387        186      23  ALJAWWALSTC-AS, SA
 20940         2971        968    2135  AKAMAI-ASN1, US
 17974         2966        902      73  TELKOMNET-AS2-AP PT Telekomunikasi Indo
  8151         2843       3410     583  Uninet S.A. de C.V., MX
  4766         2840      11124     749  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       3816         3657   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  7545       4004         3609   TPG-INTERNET-AP TPG Telecom Limited, AU
  6327       3456         3368   SHAW - Shaw Communications Inc., CA
 39891       3387         3364   ALJAWWALSTC-AS, SA
 10620       3547         3330   Telmex Colombia S.A., CO
 17974       2966         2893   TELKOMNET-AS2-AP PT Telekomunikasi Indonesia, I
  8551       2546         2505   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  9808       2358         2326   CMNET-GD Guangdong Mobile Communication Co.Ltd.
  8151       2843         2260   Uninet S.A. de C.V., MX
  9829       2753         2204   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
  65532   PRIVATE      14.192.19.0/24      132717       NDCTPL-IN NxtGen Datacenter & 
  65001   PRIVATE      43.229.208.0/24     135334       NEO-AS-AP NetExpress Online, B
  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

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
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
43.228.144.0/22       9829    BSNL-NIB National Internet Backbone, IN

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     
/13:554     /14:1051    /15:1852    /16:13432   /17:7672    /18:13425   
/19:24703   /20:38890   /21:41705   /22:78620   /23:65002   /24:368360  
/25:856     /26:634     /27:650     /28:37      /29:25      /30:17      
/31:2       /32:27      

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

   ASN   No of nets  Total ann.  Description
  6327     3252          3456    SHAW - Shaw Communications Inc., CA
 22773     3002          3816    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 39891     2946          3387    ALJAWWALSTC-AS, SA
 18566     2089          2205    MEGAPATH5-US - MegaPath Corporation, US
  8551     2011          2546    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036     1608          1826    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
 11830     1499          2109    Instituto Costarricense de Electricidad y Telec
 10620     1493          3547    Telmex Colombia S.A., CO
 11492     1388          1567    CABLEONE - CABLE ONE, INC., US
  6389     1371          2063    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)
----------------------------------------------

   1:1572      2:832       4:18        5:2454      6:31        7:1      
   8:1052     12:1854     13:142      14:1709     15:27       16:2      
  17:193      18:90       20:61       23:2439     24:1914     25:2      
  27:2361     29:1        31:1920     32:84       33:18       35:21     
  36:393      37:2362     38:1330     39:65       40:97       41:2954   
  42:463      43:1966     44:78       45:3015     46:2793     47:163    
  49:1257     50:995      51:19       52:815      54:364      55:7      
  56:4        57:45       58:1569     59:1009     60:327      61:1922   
  62:1695     63:1907     64:4653     65:2208     66:4570     67:2282   
  68:1232     69:3360     70:1176     71:615      72:2226     74:2718   
  75:389      76:427      77:1469     78:1447     79:1944     80:1410   
  81:1393     82:1000     83:731      84:946      85:1823     86:467    
  87:1206     88:769      89:2181     90:166      91:6188     92:1005   
  93:2394     94:2343     95:2656     96:652      97:355      98:1067   
  99:98      100:153     101:1220    103:15646   104:3023    105:186    
 106:568     107:1753    108:820     109:2903    110:1457    111:1746   
 112:1252    113:1251    114:1059    115:1559    116:1660    117:1757   
 118:2163    119:1652    120:733     121:1060    122:2334    123:1824   
 124:1484    125:1785    128:886     129:665     130:440     131:1473   
 132:571     133:191     134:680     135:225     136:453     137:470    
 138:1924    139:505     140:399     141:642     142:778     143:878    
 144:809     145:184     146:1087    147:701     148:1482    149:570    
 150:722     151:981     152:727     153:297     154:883     155:758    
 156:660     157:663     158:479     159:1556    160:739     161:744    
 162:2520    163:503     164:950     165:1396    166:382     167:1291   
 168:2991    169:841     170:3481    171:335     172:1014    173:1992   
 174:813     175:747     176:1896    177:4002    178:2556    179:1128   
 180:2214    181:1962    182:2389    183:776     184:877     185:10473  
 186:3316    187:2199    188:2603    189:1798    190:8347    191:1342   
 192:9553    193:5802    194:4680    195:3919    196:2100    197:1325   
 198:5542    199:5900    200:7579    201:4299    202:10334   203:9994   
 204:4540    205:2850    206:3076    207:3156    208:3941    209:3995   
 210:3950    211:2061    212:2890    213:2520    214:860     215:66     
 216:5891    217:2130    218:897     219:601     220:1686    221:899    
 222:749     223:1193   

End of report


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