[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 7 18:03:38 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 08 Jun, 2019

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

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

BGP routing table entries examined:                              757473
    Prefixes after maximum aggregation (per Origin AS):          291275
    Deaggregation factor:                                          2.60
    Unique aggregates announced (without unneeded subnets):      362403
Total ASes present in the Internet Routing Table:                 64457
    Prefixes per ASN:                                             11.75
Origin-only ASes present in the Internet Routing Table:           55455
Origin ASes announcing only one prefix:                           23832
Transit ASes present in the Internet Routing Table:                9002
Transit-only ASes present in the Internet Routing Table:            275
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      42
    Max AS path prepend of ASN ( 27978)                              31
Prefixes from unregistered ASNs in the Routing Table:                25
    Number of instances of unregistered ASNs:                        28
Number of 32-bit ASNs allocated by the RIRs:                      27264
Number of 32-bit ASNs visible in the Routing Table:               22288
Prefixes from 32-bit ASNs in the Routing Table:                  100069
Number of bogon 32-bit ASNs visible in the Routing Table:            20
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            246
Number of addresses announced to Internet:                   2839509120
    Equivalent to 169 /8s, 63 /16s and 120 /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:               99.3
Total number of prefixes smaller than registry allocations:      252705

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

Prefixes being announced by APNIC Region ASes:                   204836
    Total APNIC prefixes after maximum aggregation:               60878
    APNIC Deaggregation factor:                                    3.36
Prefixes being announced from the APNIC address blocks:          200984
    Unique aggregates announced from the APNIC address blocks:    83016
APNIC Region origin ASes present in the Internet Routing Table:    9790
    APNIC Prefixes per ASN:                                       20.53
APNIC Region origin ASes announcing only one prefix:               2717
APNIC Region transit ASes present in the Internet Routing Table:   1468
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         26
Number of APNIC region 32-bit ASNs visible in the Routing Table:   4794
Number of APNIC addresses announced to Internet:              772705920
    Equivalent to 46 /8s, 14 /16s and 142 /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:                    225582
    Total ARIN prefixes after maximum aggregation:               105116
    ARIN Deaggregation factor:                                     2.15
Prefixes being announced from the ARIN address blocks:           224535
    Unique aggregates announced from the ARIN address blocks:    105850
ARIN Region origin ASes present in the Internet Routing Table:    18490
    ARIN Prefixes per ASN:                                        12.14
ARIN Region origin ASes announcing only one prefix:                6849
ARIN Region transit ASes present in the Internet Routing Table:    1898
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          42
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2734
Number of ARIN addresses announced to Internet:              1067608192
    Equivalent to 63 /8s, 162 /16s and 104 /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,  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:                    208753
    Total RIPE prefixes after maximum aggregation:                98717
    RIPE Deaggregation factor:                                     2.11
Prefixes being announced from the RIPE address blocks:           204996
    Unique aggregates announced from the RIPE address blocks:    121288
RIPE Region origin ASes present in the Internet Routing Table:    26131
    RIPE Prefixes per ASN:                                         7.84
RIPE Region origin ASes announcing only one prefix:               11576
RIPE Region transit ASes present in the Internet Routing Table:    3724
Average RIPE Region AS path length visible:                         4.6
    Max RIPE Region AS path length visible:                          34
Number of RIPE region 32-bit ASNs visible in the Routing Table:    8179
Number of RIPE addresses announced to Internet:               719857280
    Equivalent to 42 /8s, 232 /16s and 38 /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:                   97031
    Total LACNIC prefixes after maximum aggregation:              22219
    LACNIC Deaggregation factor:                                   4.37
Prefixes being announced from the LACNIC address blocks:          98446
    Unique aggregates announced from the LACNIC address blocks:   42838
LACNIC Region origin ASes present in the Internet Routing Table:   8469
    LACNIC Prefixes per ASN:                                      11.62
LACNIC Region origin ASes announcing only one prefix:              2249
LACNIC Region transit ASes present in the Internet Routing Table:  1540
Average LACNIC Region AS path length visible:                       5.4
    Max LACNIC Region AS path length visible:                        39
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  6018
Number of LACNIC addresses announced to Internet:             173985792
    Equivalent to 10 /8s, 94 /16s and 208 /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:                  21245
    Total AfriNIC prefixes after maximum aggregation:              4324
    AfriNIC Deaggregation factor:                                  4.91
Prefixes being announced from the AfriNIC address blocks:         28266
    Unique aggregates announced from the AfriNIC address blocks:   9196
AfriNIC Region origin ASes present in the Internet Routing Table:  1284
    AfriNIC Prefixes per ASN:                                     22.01
AfriNIC Region origin ASes announcing only one prefix:              441
AfriNIC Region transit ASes present in the Internet Routing Table:  248
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       23
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  563
Number of AfriNIC addresses announced to Internet:            105102848
    Equivalent to 6 /8s, 67 /16s and 190 /24s
AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8,  45/8, 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
  7545         4750        548     537  TPG-INTERNET-AP TPG Telecom Limited, AU
  7552         3164       1443      32  VIETEL-AS-AP Viettel Group, VN
 45899         3036       1753     114  VNPT-AS-VN VNPT Corp, VN
  9808         2833       9043      62  CMNET-GD Guangdong Mobile Communication
  9829         2736       1496     552  BSNL-NIB National Internet Backbone, IN
  4766         2529      11119     759  KIXS-AS-KR Korea Telecom, KR
  4755         2139        428     182  TATACOMM-AS TATA Communications formerl
  9394         2094       4882      26  CTTNET China TieTong Telecommunications
  9498         2066        427     173  BBIL-AP BHARTI Airtel Ltd., IN
 23969         1775        314      16  TOT-NET TOT Public Company Limited, TH

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
  7155         4064        280      25  VIASAT-SP-BACKBONE - ViaSat,Inc., US
 11492         3646        238     611  CABLEONE - CABLE ONE, INC., US
  6327         3611       1324      89  SHAW - Shaw Communications Inc., CA
 22773         3413       2974     156  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 16509         2856       6276    1247  AMAZON-02 - Amazon.com, Inc., US
 16625         2497       1367    1875  AKAMAI-AS - Akamai Technologies, Inc., 
 30036         2163        347     189  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
 20115         2151       2760     526  CHARTER-20115 - Charter Communications,
 18566         2099        405     108  MEGAPATH5-US - MegaPath Corporation, US
  5650         2085       3074    1461  FRONTIER-FRTR - Frontier Communications

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         5451       1629     141  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  8551         3168        379      46  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2668        510    1920  AKAMAI-ASN1, US
 12389         2244       2225     633  ROSTELECOM-AS, RU
 34984         2100        346     548  TELLCOM-AS, TR
  9121         1663       1692      18  TTNET, TR
 13188         1604        100      47  TRIOLAN, UA
  9009         1512        161     827  M247, GB
 61317         1379        137     383  ASDETUK http://www.heficed.com, 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         5822       3373     566  Uninet S.A. de C.V., MX
 10620         3418        533     440  Telmex Colombia S.A., CO
 11830         2709        384      36  Instituto Costarricense de Electricidad
  7303         1485       1024     256  Telecom Argentina S.A., AR
 28573         1413       2240     205  CLARO S.A., BR
  6503         1236        441      54  Axtel, S.A.B. de C.V., MX
  3816         1101        535     145  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147         1084        377      31  Telefonica del Peru S.A.A., PE
 13999          994        514     242  Mega Cable, S.A. de C.V., MX
 11172          938        144      62  Alestra, S. de R.L. 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      21  LINKdotNET-AS, EG
 37611          967        107       9  Afrihost, ZA
 24835          888        624      21  RAYA-AS, EG
 36992          859       1536      69  ETISALAT-MISR, EG
 36903          827        416     126  MT-MPLS, MA
  8452          665       1731      19  TE-AS TE-AS, EG
 29571          514         68      11  ORANGE-COTE-IVOIRE, CI
 37492          474        470      57  ORANGE-, TN
 37342          414         32       1  MOVITEL, MZ
 15399          412         45      11  WANANCHI-, KE

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         5822       3373     566  Uninet S.A. de C.V., MX
 12479         5451       1629     141  UNI2-AS, ES
  7545         4750        548     537  TPG-INTERNET-AP TPG Telecom Limited, AU
  7155         4064        280      25  VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891         3778        203      20  ALJAWWALSTC-AS, SA
 11492         3646        238     611  CABLEONE - CABLE ONE, INC., US
  6327         3611       1324      89  SHAW - Shaw Communications Inc., CA
 10620         3418        533     440  Telmex Colombia S.A., CO
 22773         3413       2974     156  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  8551         3168        379      46  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
 12479       5451         5310   UNI2-AS, ES
  7545       4750         4213   TPG-INTERNET-AP TPG Telecom Limited, AU
  7155       4064         4039   VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891       3778         3758   ALJAWWALSTC-AS, SA
  6327       3611         3522   SHAW - Shaw Communications Inc., CA
 22773       3413         3257   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  7552       3164         3132   VIETEL-AS-AP Viettel Group, VN
  8551       3168         3122   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11492       3646         3035   CABLEONE - CABLE ONE, INC., US
 10620       3418         2978   Telmex Colombia S.A., CO

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
 267804   UNALLOCATED  45.172.108.0/22      52361       ARSAT - Empresa Argentina de S
 266842   UNALLOCATED  45.238.156.0/22     265680       HNTELCO S.A, HN
  65550   DOCUMENT     81.8.34.0/24         15924       BORUSANTELEKOM-AS, TR
  65550   DOCUMENT     81.8.35.0/24         15924       BORUSANTELEKOM-AS, TR
 130974   UNALLOCATED  103.139.78.0/24     139074       TDL-AS-AP TECHNOLOGY DIRECTION
  65549   DOCUMENT     117.239.163.0/24     65544       UNKNOWN
  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&

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

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

Network            Origin AS  Description
23.136.48.0/24       54009    ASN-01-HOSTINGESSENTIALS-MI1 - Hosting Essentials, 
27.100.7.0/24        56096    UNKNOWN
27.126.156.0/22      55827    UNKNOWN
27.126.156.0/23      55827    UNKNOWN
27.126.158.0/23      55827    UNKNOWN
36.255.72.0/22       13768    COGECO-PEER1 - Cogeco Peer 1, CA
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

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        /8:11       /9:11      /10:37      /11:100     /12:294     
/13:570     /14:1127    /15:1913    /16:13269   /17:8004    /18:13982   
/19:25870   /20:40322   /21:47421   /22:94564   /23:76907   /24:432149  
/25:922     /26:0       /27:0       /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN   No of nets  Total ann.  Description
 12479     4407          5451    UNI2-AS, ES
  6327     3401          3611    SHAW - Shaw Communications Inc., CA
  7155     3156          4064    VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891     2946          3778    ALJAWWALSTC-AS, SA
 11492     2856          3646    CABLEONE - CABLE ONE, INC., US
 22773     2650          3413    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  8551     2621          3168    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11830     2053          2709    Instituto Costarricense de Electricidad y Telec
 18566     1994          2099    MEGAPATH5-US - MegaPath Corporation, US
 30036     1914          2163    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi

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

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

   1:1692      2:1029      3:6         4:21        5:3164      6:47     
   7:1         8:1324      9:1        12:1803     13:346      14:2029   
  15:35       16:6        17:264      18:66       20:52       23:2718   
  24:2526     25:4        27:2444     31:1999     32:100      35:36     
  36:865      37:3038     38:1754     39:279      40:123      41:3190   
  42:819      43:2047     44:152      45:8191     46:3322     47:263    
  49:1365     50:1101     51:331      52:1016     54:281      55:710    
  56:6        57:47       58:1765     59:1071     60:516      61:2188   
  62:2124     63:1827     64:4992     65:2204     66:4844     67:2780   
  68:1164     69:3537     70:1367     71:639      72:2622     74:2733   
  75:1291     76:558      77:1807     78:1836     79:2311     80:1808   
  81:1494     82:1132     83:941      84:1146     85:2281     86:563    
  87:1562     88:1049     89:2656     90:215      91:6590     92:1415   
  93:2464     94:2456     95:3298     96:948      97:346      98:959    
  99:768     100:86      101:1162    102:625     103:21366   104:3536   
 105:262     106:778     107:1749    108:695     109:3696    110:1704   
 111:2044    112:1531    113:1372    114:1232    115:1738    116:1753   
 117:1913    118:2141    119:1645    120:1056    121:1045    122:2283   
 123:1750    124:1482    125:2014    128:1342    129:817     130:534    
 131:1807    132:829     133:222     134:1098    135:248     136:576    
 137:772     138:2075    139:884     140:600     141:883     142:811    
 143:1058    144:896     145:489     146:1282    147:825     148:1685   
 149:965     150:787     151:1014    152:1084    153:335     154:3493   
 155:917     156:1687    157:1006    158:661     159:1955    160:1587   
 161:939     162:2951    163:829     164:1194    165:1604    166:449    
 167:1409    168:3306    169:891     170:4119    171:595     172:1650   
 173:2230    174:1049    175:964     176:2348    177:4163    178:2540   
 179:1429    180:2158    181:2414    182:2709    183:1084    184:2260   
 185:15183   186:3651    187:2476    188:2949    189:1976    190:8208   
 191:1527    192:10062   193:6690    194:5460    195:4145    196:3117   
 197:1601    198:5932    199:5976    200:7098    201:5098    202:10423  
 203:10212   204:4544    205:3052    206:3242    207:3243    208:3953   
 209:4277    210:3926    211:2016    212:3097    213:2951    214:1107   
 215:55      216:5927    217:2241    218:877     219:605     220:1883   
 221:974     222:979     223:1370   

End of report



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