[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri May 18 18:03:11 UTC 2018


This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.

The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG, 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 May, 2018

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

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

BGP routing table entries examined:                              700789
    Prefixes after maximum aggregation (per Origin AS):          269276
    Deaggregation factor:                                          2.60
    Unique aggregates announced (without unneeded subnets):      336765
Total ASes present in the Internet Routing Table:                 60726
    Prefixes per ASN:                                             11.54
Origin-only ASes present in the Internet Routing Table:           52444
Origin ASes announcing only one prefix:                           22914
Transit ASes present in the Internet Routing Table:                8282
Transit-only ASes present in the Internet Routing Table:            270
Average AS path length visible in the Internet Routing Table:       4.0
    Max AS path length visible:                                      30
    Max AS path prepend of ASN ( 30873)                              28
Prefixes from unregistered ASNs in the Routing Table:                53
    Number of instances of unregistered ASNs:                        53
Number of 32-bit ASNs allocated by the RIRs:                      22616
Number of 32-bit ASNs visible in the Routing Table:               18220
Prefixes from 32-bit ASNs in the Routing Table:                   75897
Number of bogon 32-bit ASNs visible in the Routing Table:            15
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            304
Number of addresses announced to Internet:                   2859596354
    Equivalent to 170 /8s, 113 /16s and 250 /24s
    Percentage of available address space announced:               77.2
    Percentage of allocated address space announced:               77.2
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               98.9
Total number of prefixes smaller than registry allocations:      233976

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

Prefixes being announced by APNIC Region ASes:                   191663
    Total APNIC prefixes after maximum aggregation:               54291
    APNIC Deaggregation factor:                                    3.53
Prefixes being announced from the APNIC address blocks:          190476
    Unique aggregates announced from the APNIC address blocks:    77546
APNIC Region origin ASes present in the Internet Routing Table:    8813
    APNIC Prefixes per ASN:                                       21.61
APNIC Region origin ASes announcing only one prefix:               2460
APNIC Region transit ASes present in the Internet Routing Table:   1316
Average APNIC Region AS path length visible:                        4.0
    Max APNIC Region AS path length visible:                         23
Number of APNIC region 32-bit ASNs visible in the Routing Table:   3775
Number of APNIC addresses announced to Internet:              767033858
    Equivalent to 45 /8s, 184 /16s and 2 /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:                    208375
    Total ARIN prefixes after maximum aggregation:                99076
    ARIN Deaggregation factor:                                     2.10
Prefixes being announced from the ARIN address blocks:           209145
    Unique aggregates announced from the ARIN address blocks:     98869
ARIN Region origin ASes present in the Internet Routing Table:    18163
    ARIN Prefixes per ASN:                                        11.51
ARIN Region origin ASes announcing only one prefix:                6711
ARIN Region transit ASes present in the Internet Routing Table:    1793
Average ARIN Region AS path length visible:                         3.6
    Max ARIN Region AS path length visible:                          20
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2349
Number of ARIN addresses announced to Internet:              1105502240
    Equivalent to 65 /8s, 228 /16s and 160 /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:                    191469
    Total RIPE prefixes after maximum aggregation:                92029
    RIPE Deaggregation factor:                                     2.08
Prefixes being announced from the RIPE address blocks:           187444
    Unique aggregates announced from the RIPE address blocks:    111353
RIPE Region origin ASes present in the Internet Routing Table:    25153
    RIPE Prefixes per ASN:                                         7.45
RIPE Region origin ASes announcing only one prefix:               11385
RIPE Region transit ASes present in the Internet Routing Table:    3505
Average RIPE Region AS path length visible:                         4.1
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    6987
Number of RIPE addresses announced to Internet:               716083840
    Equivalent to 42 /8s, 174 /16s and 146 /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:                   90587
    Total LACNIC prefixes after maximum aggregation:              19869
    LACNIC Deaggregation factor:                                   4.56
Prefixes being announced from the LACNIC address blocks:          92016
    Unique aggregates announced from the LACNIC address blocks:   41067
LACNIC Region origin ASes present in the Internet Routing Table:   7156
    LACNIC Prefixes per ASN:                                      12.86
LACNIC Region origin ASes announcing only one prefix:              1979
LACNIC Region transit ASes present in the Internet Routing Table:  1334
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        27
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  4692
Number of LACNIC addresses announced to Internet:             172671904
    Equivalent to 10 /8s, 74 /16s and 195 /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:                  18640
    Total AfriNIC prefixes after maximum aggregation:              3963
    AfriNIC Deaggregation factor:                                  4.70
Prefixes being announced from the AfriNIC address blocks:         21404
    Unique aggregates announced from the AfriNIC address blocks:   7662
AfriNIC Region origin ASes present in the Internet Routing Table:  1142
    AfriNIC Prefixes per ASN:                                     18.74
AfriNIC Region origin ASes announcing only one prefix:              378
AfriNIC Region transit ASes present in the Internet Routing Table:  232
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       21
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  417
Number of AfriNIC addresses announced to Internet:             97854720
    Equivalent to 5 /8s, 213 /16s and 37 /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         5415       4192      74  ERX-CERNET-BKB China Education and Rese
  7545         4403        419     431  TPG-INTERNET-AP TPG Telecom Limited, AU
  4766         2908      11137     790  KIXS-AS-KR Korea Telecom, KR
  7552         2862       1155      74  VIETEL-AS-AP Viettel Group, VN
  9829         2812       1498     543  BSNL-NIB National Internet Backbone, IN
  9394         2537       4922      25  CTTNET China TieTong Telecommunications
 45899         2526       1574     160  VNPT-AS-VN VNPT Corp, VN
 17974         2216        928      79  TELKOMNET-AS2-AP PT Telekomunikasi Indo
  9808         2195       8699      26  CMNET-GD Guangdong Mobile Communication
  4755         2104        417     207  TATACOMM-AS TATA Communications formerl

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

ARIN Region per AS prefix count summary
---------------------------------------

   ASN   No of nets  /20 equiv  MaxAgg  Description
  6327         3416       1323      84  SHAW - Shaw Communications Inc., CA
 22773         3295       2968     147  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 18566         2167        405     109  MEGAPATH5-US - MegaPath Corporation, US
 16509         2107       4687     661  AMAZON-02 - Amazon.com, Inc., US
 11492         2102        243     436  CABLEONE - CABLE ONE, INC., US
 20115         2102       2510     452  CHARTER-NET-HKY-NC - Charter Communicat
   209         1987       5070     606  CENTURYLINK-US-LEGACY-QWEST - Qwest Com
 30036         1982        342     166  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
 16625         1803        891    1285  AKAMAI-AS - Akamai Technologies, Inc., 
  7018         1718      20215    1260  ATT-INTERNET4 - AT&T Services, 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
 12479         4151       1519     516  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  8551         2880        377      43  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2630        691    1932  AKAMAI-ASN1, US
 12389         2047       1876     709  ROSTELECOM-AS, RU
 34984         2015        334     487  TELLCOM-AS, TR
  9121         1885       1692      19  TTNET, TR
 13188         1609        100      43  TRIOLAN, UA
  8402         1243        544      14  CORBINA-AS OJSC "Vimpelcom", RU
  6849         1241        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
  8151         4812       3358     591  Uninet S.A. de C.V., MX
 10620         3594        542     244  Telmex Colombia S.A., CO
 11830         2648        369      77  Instituto Costarricense de Electricidad
  6503         1611        437      53  Axtel, S.A.B. de C.V., MX
  7303         1514       1026     188  Telecom Argentina S.A., AR
 28573         1026       2249     191  CLARO S.A., BR
  3816         1008        505     123  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147          982        377      31  Telefonica del Peru S.A.A., PE
 11172          929        126      85  Alestra, S. de R.L. de C.V., MX
 18881          910       1076      29  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         1183        396      45  LINKdotNET-AS, EG
 37611          851        107       9  Afrihost, ZA
 36903          740        372     140  MT-MPLS, MA
 36992          703       1412      42  ETISALAT-MISR, EG
  8452          693       1730      18  TE-AS TE-AS, EG
 24835          567        818      18  RAYA-AS, EG
 37492          452        376      82  ORANGE-, TN
 29571          439         68      10  ORANGE-COTE-IVOIRE, CI
 15399          363         35       7  WANANCHI-, KE
 23889          363        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         5415       4192      74  ERX-CERNET-BKB China Education and Rese
  8151         4812       3358     591  Uninet S.A. de C.V., MX
  7545         4403        419     431  TPG-INTERNET-AP TPG Telecom Limited, AU
 12479         4151       1519     516  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
 10620         3594        542     244  Telmex Colombia S.A., CO
  6327         3416       1323      84  SHAW - Shaw Communications Inc., CA
 22773         3295       2968     147  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  4766         2908      11137     790  KIXS-AS-KR Korea Telecom, KR
  8551         2880        377      43  BEZEQ-INTERNATIONAL-AS Bezeqint Interne

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

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

  ASN   No of nets  Net Savings  Description
  8151       4812         4221   Uninet S.A. de C.V., MX
  7545       4403         3972   TPG-INTERNET-AP TPG Telecom Limited, AU
 39891       3778         3758   ALJAWWALSTC-AS, SA
 12479       4151         3635   UNI2-AS, ES
 10620       3594         3350   Telmex Colombia S.A., CO
  6327       3416         3332   SHAW - Shaw Communications Inc., CA
 22773       3295         3148   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  8551       2880         2837   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  7552       2862         2788   VIETEL-AS-AP Viettel Group, VN
 11830       2648         2571   Instituto Costarricense de Electricidad y Telec

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

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

Bad AS    Designation  Network              Transit AS  Description
  64514   PRIVATE      5.42.231.0/24        35753       ITC ITC AS number, SA
 230105   UNALLOCATED  38.110.79.0/24       23015       CMC180-TOR-AS - Cambridge Merc
  65001   PRIVATE      46.237.40.0/21       13118       ASN-YARTELECOM PJSC Rostelecom
  64513   PRIVATE      62.150.101.0/24       9155       QNET Kuwait, KW
  65537   DOCUMENT     62.162.120.0/24       6821       MT-AS-OWN bul. Orce Nikolov bb
 419333   UNALLOCATED  84.17.91.0/24        41933       IPRAGAZ-AS Istanbul/ TURKEY, T
  65024   PRIVATE      87.103.232.0/24      39407       CHITATELECOM-AS, RU
  65024   PRIVATE      87.103.233.0/24      39407       CHITATELECOM-AS, RU
  65024   PRIVATE      87.103.234.0/24      39407       CHITATELECOM-AS, RU
  65024   PRIVATE      95.189.78.0/24       39407       CHITATELECOM-AS, RU

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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
100.66.224.0/19        209     CENTURYLINK-US-LEGACY-QWEST - Qwest Communicati

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

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

Network            Origin AS  Description
27.100.7.0/24        56096    UNKNOWN
36.50.254.0/23       48964    ENTERRA-AS, UA
41.76.136.0/22       37500    -Reserved AS-, ZZ
41.76.136.0/24       37500    -Reserved AS-, ZZ
41.76.138.0/24       37500    -Reserved AS-, ZZ
41.76.139.0/24       37500    -Reserved AS-, ZZ
41.76.140.0/22       37500    -Reserved AS-, ZZ
41.76.140.0/24       37500    -Reserved AS-, ZZ
41.76.141.0/24       37500    -Reserved AS-, ZZ
41.76.142.0/24       37500    -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        /8:14       /9:11      /10:37      /11:100     /12:288     
/13:566     /14:1093    /15:1908    /16:13390   /17:7879    /18:13632   
/19:25180   /20:39356   /21:45390   /22:87183   /23:70455   /24:392031  
/25:847     /26:651     /27:647     /28:36      /29:20      /30:18      
/31:4       /32:53      

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

   ASN   No of nets  Total ann.  Description
  6327     3204          3416    SHAW - Shaw Communications Inc., CA
 39891     2946          3778    ALJAWWALSTC-AS, SA
 12479     2931          4151    UNI2-AS, ES
 22773     2551          3295    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  8551     2342          2880    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 18566     2060          2167    MEGAPATH5-US - MegaPath Corporation, US
 11830     1996          2648    Instituto Costarricense de Electricidad y Telec
 11492     1845          2102    CABLEONE - CABLE ONE, INC., US
 30036     1733          1982    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
 10620     1609          3594    Telmex Colombia S.A., CO

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

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

   1:1583      2:847       4:19        5:2844      6:65        7:1      
   8:1124     12:1860     13:185      14:1749     15:28       16:3      
  17:206      18:65       20:49       21:8        23:2664     24:2221   
  25:2        27:2368     31:1977     32:88       35:27       36:507    
  37:2797     38:1463     39:262      40:121      41:3159     42:592    
  43:1926     44:116      45:4570     46:3042     47:204      49:1318   
  50:1052     51:311      52:1032     54:369      55:3        56:12     
  57:42       58:1606     59:991      60:431      61:2160     62:1824   
  63:1800     64:5044     65:2214     66:4690     67:2436     68:1134   
  69:3197     70:1144     71:565      72:2112     74:2729     75:414    
  76:451      77:1544     78:1693     79:1851     80:1510     81:1394   
  82:1075     83:779      84:1044     85:2031     86:575      87:1317   
  88:929      89:2332     90:211      91:6350     92:1197     93:2372   
  94:2393     95:2813     96:668      97:357      98:946      99:133    
 100:81      101:1282    102:61      103:17730   104:3636    105:239    
 106:656     107:1889    108:699     109:3484    110:1625    111:1778   
 112:1274    113:1266    114:1118    115:1631    116:1643    117:1741   
 118:2202    119:1655    120:978     121:1051    122:2444    123:1820   
 124:1430    125:1901    128:1026    129:649     130:455     131:1592   
 132:666     133:195     134:1024    135:226     136:471     137:555    
 138:1927    139:584     140:396     141:704     142:825     143:990    
 144:791     145:461     146:1177    147:716     148:1633    149:699    
 150:725     151:1057    152:763     153:312     154:1088    155:759    
 156:957     157:788     158:650     159:1743    160:939     161:762    
 162:2576    163:565     164:1056    165:1592    166:453     167:1406   
 168:3074    169:802     170:3716    171:435     172:1068    173:1998   
 174:906     175:773     176:1886    177:4049    178:2451    179:1200   
 180:2230    181:2204    182:2423    183:1166    184:1010    185:13491  
 186:3568    187:2376    188:2822    189:2028    190:8076    191:1448   
 192:9840    193:5944    194:4756    195:3971    196:2543    197:1468   
 198:5542    199:5894    200:7380    201:5015    202:10467   203:10200  
 204:4564    205:2897    206:3107    207:3176    208:3976    209:3948   
 210:4036    211:2109    212:3039    213:2743    214:958     215:61     
 216:5915    217:2128    218:905     219:629     220:1750    221:986    
 222:1025    223:1255   

End of report



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