[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jan 11 18:03:20 UTC 2019


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 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 12 Jan, 2019

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

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

BGP routing table entries examined:                              733674
    Prefixes after maximum aggregation (per Origin AS):          282062
    Deaggregation factor:                                          2.60
    Unique aggregates announced (without unneeded subnets):      353352
Total ASes present in the Internet Routing Table:                 62885
    Prefixes per ASN:                                             11.67
Origin-only ASes present in the Internet Routing Table:           54196
Origin ASes announcing only one prefix:                           23519
Transit ASes present in the Internet Routing Table:                8689
Transit-only ASes present in the Internet Routing Table:            266
Average AS path length visible in the Internet Routing Table:       4.2
    Max AS path length visible:                                      31
    Max AS path prepend of ASN ( 16327)                              25
Prefixes from unregistered ASNs in the Routing Table:                23
    Number of instances of unregistered ASNs:                        25
Number of 32-bit ASNs allocated by the RIRs:                      25439
Number of 32-bit ASNs visible in the Routing Table:               20634
Prefixes from 32-bit ASNs in the Routing Table:                   89143
Number of bogon 32-bit ASNs visible in the Routing Table:            18
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            288
Number of addresses announced to Internet:                   2841162851
    Equivalent to 169 /8s, 88 /16s and 180 /24s
    Percentage of available address space announced:               76.7
    Percentage of allocated address space announced:               76.7
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.1
Total number of prefixes smaller than registry allocations:      245674

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

Prefixes being announced by APNIC Region ASes:                   199728
    Total APNIC prefixes after maximum aggregation:               57048
    APNIC Deaggregation factor:                                    3.50
Prefixes being announced from the APNIC address blocks:          196822
    Unique aggregates announced from the APNIC address blocks:    81412
APNIC Region origin ASes present in the Internet Routing Table:    9352
    APNIC Prefixes per ASN:                                       21.05
APNIC Region origin ASes announcing only one prefix:               2635
APNIC Region transit ASes present in the Internet Routing Table:   1395
Average APNIC Region AS path length visible:                        4.1
    Max APNIC Region AS path length visible:                         26
Number of APNIC region 32-bit ASNs visible in the Routing Table:   4356
Number of APNIC addresses announced to Internet:              769082882
    Equivalent to 45 /8s, 215 /16s and 70 /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, 131072-139577
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:                    217169
    Total ARIN prefixes after maximum aggregation:               103060
    ARIN Deaggregation factor:                                     2.11
Prefixes being announced from the ARIN address blocks:           216418
    Unique aggregates announced from the ARIN address blocks:    103683
ARIN Region origin ASes present in the Internet Routing Table:    18314
    ARIN Prefixes per ASN:                                        11.82
ARIN Region origin ASes announcing only one prefix:                6811
ARIN Region transit ASes present in the Internet Routing Table:    1845
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          23
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2538
Number of ARIN addresses announced to Internet:              1079462304
    Equivalent to 64 /8s, 87 /16s and 73 /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, 393216-399260
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:                    201112
    Total RIPE prefixes after maximum aggregation:                95726
    RIPE Deaggregation factor:                                     2.10
Prefixes being announced from the RIPE address blocks:           197454
    Unique aggregates announced from the RIPE address blocks:    116555
RIPE Region origin ASes present in the Internet Routing Table:    25737
    RIPE Prefixes per ASN:                                         7.67
RIPE Region origin ASes announcing only one prefix:               11482
RIPE Region transit ASes present in the Internet Routing Table:    3615
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          28
Number of RIPE region 32-bit ASNs visible in the Routing Table:    7720
Number of RIPE addresses announced to Internet:               716067520
    Equivalent to 42 /8s, 174 /16s and 82 /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
                       196608-210331
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:                   95416
    Total LACNIC prefixes after maximum aggregation:              22002
    LACNIC Deaggregation factor:                                   4.34
Prefixes being announced from the LACNIC address blocks:          96820
    Unique aggregates announced from the LACNIC address blocks:   42306
LACNIC Region origin ASes present in the Internet Routing Table:   7964
    LACNIC Prefixes per ASN:                                      12.16
LACNIC Region origin ASes announcing only one prefix:              2166
LACNIC Region transit ASes present in the Internet Routing Table:  1486
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        31
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  5513
Number of LACNIC addresses announced to Internet:             173145344
    Equivalent to 10 /8s, 81 /16s and 253 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-270748 + 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:                  20225
    Total AfriNIC prefixes after maximum aggregation:              4208
    AfriNIC Deaggregation factor:                                  4.81
Prefixes being announced from the AfriNIC address blocks:         25872
    Unique aggregates announced from the AfriNIC address blocks:   9135
AfriNIC Region origin ASes present in the Internet Routing Table:  1236
    AfriNIC Prefixes per ASN:                                     20.93
AfriNIC Region origin ASes announcing only one prefix:              425
AfriNIC Region transit ASes present in the Internet Routing Table:  245
Average AfriNIC Region AS path length visible:                      4.4
    Max AfriNIC Region AS path length visible:                       20
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  507
Number of AfriNIC addresses announced to Internet:            102989312
    Equivalent to 6 /8s, 35 /16s and 126 /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         4645       4192      74  ERX-CERNET-BKB China Education and Rese
  7545         4622        519     520  TPG-INTERNET-AP TPG Telecom Limited, AU
  7552         3044       1160      91  VIETEL-AS-AP Viettel Group, VN
 45899         2990       1721     112  VNPT-AS-VN VNPT Corp, VN
  4766         2810      11129     767  KIXS-AS-KR Korea Telecom, KR
  9829         2749       1496     551  BSNL-NIB National Internet Backbone, IN
  9808         2465       8699      26  CMNET-GD Guangdong Mobile Communication
  9394         2405       4906      29  CTTNET China TieTong Telecommunications
  4755         2143        437     181  TATACOMM-AS TATA Communications formerl
 17974         2088        968      50  TELKOMNET-AS2-AP PT Telekomunikasi Indo

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         3511       1326      92  SHAW - Shaw Communications Inc., CA
 11492         3486        225     599  CABLEONE - CABLE ONE, INC., US
 22773         3310       2979     174  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 16509         2608       5389     982  AMAZON-02 - Amazon.com, Inc., US
 16625         2210       1233    1699  AKAMAI-AS - Akamai Technologies, Inc., 
 20115         2150       2754     533  CHARTER-20115 - Charter Communications,
 18566         2136        405     108  MEGAPATH5-US - MegaPath Corporation, US
 30036         2101        350     134  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
  5650         2087       3074    1462  FRONTIER-FRTR - Frontier Communications
   209         2074       5077     589  CENTURYLINK-US-LEGACY-QWEST - CenturyLi

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         5277       1628     138  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  8551         3290        378      43  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2635        575    1936  AKAMAI-ASN1, US
 12389         2228       2221     626  ROSTELECOM-AS, RU
 34984         2055        338     523  TELLCOM-AS, TR
  9121         1736       1691      17  TTNET, TR
 13188         1604        100      46  TRIOLAN, UA
  8402         1301        545      15  CORBINA-AS OJSC "Vimpelcom", RU
  9009         1242        135     695  M247, GB

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         5494       3319     592  Uninet S.A. de C.V., MX
 10620         3150        475     905  Telmex Colombia S.A., CO
 11830         2679        371      71  Instituto Costarricense de Electricidad
  6503         1631        449      54  Axtel, S.A.B. de C.V., MX
  7303         1441        961     226  Telecom Argentina S.A., AR
 28573         1184       2239     183  CLARO S.A., BR
  6147         1084        377      29  Telefonica del Peru S.A.A., PE
  3816         1026        511     112  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11172          935        143      66  Alestra, S. de R.L. de C.V., MX
 13999          928        535     250  Mega Cable, S.A. de C.V., MX

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         1162        393      22  LINKdotNET-AS, EG
 37611          902        107       9  Afrihost, ZA
 36903          797        401     139  MT-MPLS, MA
 36992          780       1411      44  ETISALAT-MISR, EG
 24835          683        634      21  RAYA-AS, EG
  8452          635       1731      19  TE-AS TE-AS, EG
 29571          481         70      12  ORANGE-COTE-IVOIRE, CI
 37492          459        470      57  ORANGE-, TN
 15399          417         45      11  WANANCHI-, KE
 37342          410         32       1  MOVITEL, MZ

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
  8151         5494       3319     592  Uninet S.A. de C.V., MX
 12479         5277       1628     138  UNI2-AS, ES
  4538         4645       4192      74  ERX-CERNET-BKB China Education and Rese
  7545         4622        519     520  TPG-INTERNET-AP TPG Telecom Limited, AU
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  6327         3511       1326      92  SHAW - Shaw Communications Inc., CA
 11492         3486        225     599  CABLEONE - CABLE ONE, INC., US
 22773         3310       2979     174  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  8551         3290        378      43  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 10620         3150        475     905  Telmex Colombia S.A., CO

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

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

  ASN   No of nets  Net Savings  Description
 12479       5277         5139   UNI2-AS, ES
  4538       4645         4571   ERX-CERNET-BKB China Education and Research Net
  7545       4622         4102   TPG-INTERNET-AP TPG Telecom Limited, AU
 39891       3778         3758   ALJAWWALSTC-AS, SA
  6327       3511         3419   SHAW - Shaw Communications Inc., CA
  8551       3290         3247   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773       3310         3136   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  7552       3044         2953   VIETEL-AS-AP Viettel Group, VN
 11492       3486         2887   CABLEONE - CABLE ONE, INC., US
 45899       2990         2878   VNPT-AS-VN VNPT Corp, VN

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

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

Bad AS    Designation  Network              Transit AS  Description
 230105   UNALLOCATED  38.110.79.0/24       23015       CMC180-TOR-AS - Cambridge Merc
 266842   UNALLOCATED  45.238.156.0/22     265680       HNTELCO S.A, HN
4200058511   PRIVATE      103.111.177.0/24    137522       OERL-AS-AP Origin Energy Retai
4200058511   PRIVATE      103.111.178.0/24    137522       OERL-AS-AP Origin Energy Retai
  64339   UNALLOCATED  143.0.108.0/22       18747       IFX18747 - IFX Corporation, US
  64355   UNALLOCATED  156.40.196.0/24      30387       NIH-NET-NCCS - National Instit
  64011   UNALLOCATED  166.133.128.0/18     20057       ATT-MOBILITY-LLC-AS20057 - AT&
  64011   UNALLOCATED  166.133.192.0/18     20057       ATT-MOBILITY-LLC-AS20057 - AT&
  64011   UNALLOCATED  166.184.9.0/24       20057       ATT-MOBILITY-LLC-AS20057 - AT&
  64011   UNALLOCATED  166.220.64.0/19      20057       ATT-MOBILITY-LLC-AS20057 - AT&

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

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

Prefix             Origin AS  Description
198.18.1.19/32        7497     CSTNET-AS-AP Computer Network Information Cente

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
41.76.136.0/22       37500    -Reserved AS-, ZZ
41.76.140.0/22       37500    -Reserved AS-, ZZ
41.78.92.0/22        14988    BTC-GATE1, BW
41.78.180.0/23       37265    -Reserved AS-, ZZ
43.255.80.0/24       36351    SOFTLAYER - SoftLayer Technologies Inc., US
43.255.82.0/24       36351    SOFTLAYER - SoftLayer Technologies Inc., US
43.255.83.0/24       36351    SOFTLAYER - SoftLayer Technologies Inc., US
45.121.32.0/22      134356    UNKNOWN
45.124.164.0/22      38803    GTELECOM-AUSTRALIA Gtelecom-AUSTRALIA, AU

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        /8:12       /9:10      /10:36      /11:99      /12:292     
/13:568     /14:1129    /15:1916    /16:13354   /17:7872    /18:13845   
/19:25525   /20:39678   /21:46133   /22:91220   /23:74692   /24:414403  
/25:924     /26:822     /27:883     /28:32      /29:18      /30:9       
/31:2       /32:200     

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

   ASN   No of nets  Total ann.  Description
 12479     4127          5277    UNI2-AS, ES
  6327     3274          3511    SHAW - Shaw Communications Inc., CA
 39891     2946          3778    ALJAWWALSTC-AS, SA
 11492     2764          3486    CABLEONE - CABLE ONE, INC., US
  8551     2746          3290    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773     2550          3310    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 18566     2031          2136    MEGAPATH5-US - MegaPath Corporation, US
 11830     2024          2679    Instituto Costarricense de Electricidad y Telec
 30036     1849          2101    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
  5650     1761          2087    FRONTIER-FRTR - Frontier Communications of Amer

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

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

   1:1613      2:894       3:1         4:23        5:2776      6:43     
   7:1         8:1176     12:1874     13:306      14:1876     15:37     
  16:2        17:215      18:59       20:48       23:2566     24:2415   
  25:2        27:2551     31:2014     32:92       35:31       36:822    
  37:3006     38:1606     39:283      40:122      41:3153     42:726    
  43:2006     44:140      45:6525     46:3150     47:244      49:1332   
  50:1083     51:319      52:1081     54:363      55:1        56:6      
  57:41       58:1714     59:1071     60:456      61:2079     62:2206   
  63:1813     64:5101     65:2193     66:4817     67:2684     68:1170   
  69:3455     70:1145     71:601      72:2281     74:2750     75:415    
  76:543      77:1718     78:1747     79:2323     80:1647     81:1432   
  82:1068     83:878      84:1080     85:2139     86:562      87:1536   
  88:994      89:2398     90:213      91:6540     92:1224     93:2381   
  94:2401     95:3190     96:908      97:349      98:939      99:169    
 100:87      101:1157    102:339     103:19758   104:3573    105:243    
 106:895     107:1826    108:697     109:3634    110:1637    111:1867   
 112:1398    113:1379    114:1154    115:1709    116:1622    117:1915   
 118:2199    119:1684    120:1056    121:1030    122:2368    123:1640   
 124:1446    125:1953    128:1196    129:691     130:525     131:1622   
 132:716     133:213     134:1043    135:230     136:541     137:676    
 138:1977    139:796     140:566     141:762     142:802     143:1010   
 144:896     145:504     146:1246    147:774     148:1704    149:805    
 150:782     151:1000    152:975     153:325     154:2435    155:969    
 156:1640    157:859     158:656     159:1903    160:1492    161:898    
 162:2663    163:774     164:1118    165:1581    166:462     167:1364   
 168:3234    169:872     170:4039    171:497     172:1059    173:2146   
 174:1003    175:878     176:2290    177:4052    178:2567    179:1295   
 180:2089    181:2355    182:2678    183:1057    184:1136    185:14558  
 186:3714    187:2515    188:2976    189:2104    190:8270    191:1438   
 192:10038   193:6500    194:5334    195:4033    196:2913    197:1724   
 198:5696    199:5963    200:7395    201:5028    202:10188   203:10176  
 204:4635    205:3017    206:3301    207:3283    208:3945    209:4225   
 210:3917    211:1994    212:3081    213:2805    214:1067    215:52     
 216:5973    217:2188    218:889     219:575     220:1835    221:995    
 222:978     223:1427   

End of report


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