[menog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri May 3 18:03:30 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 04 May, 2019

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

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

BGP routing table entries examined:                              749324
    Prefixes after maximum aggregation (per Origin AS):          287369
    Deaggregation factor:                                          2.61
    Unique aggregates announced (without unneeded subnets):      360025
Total ASes present in the Internet Routing Table:                 64054
    Prefixes per ASN:                                             11.70
Origin-only ASes present in the Internet Routing Table:           55085
Origin ASes announcing only one prefix:                           23745
Transit ASes present in the Internet Routing Table:                8969
Transit-only ASes present in the Internet Routing Table:            278
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      41
    Max AS path prepend of ASN ( 22394)                              38
Prefixes from unregistered ASNs in the Routing Table:                25
    Number of instances of unregistered ASNs:                        29
Number of 32-bit ASNs allocated by the RIRs:                      26816
Number of 32-bit ASNs visible in the Routing Table:               21880
Prefixes from 32-bit ASNs in the Routing Table:                   96358
Number of bogon 32-bit ASNs visible in the Routing Table:            22
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            247
Number of addresses announced to Internet:                   2849998464
    Equivalent to 169 /8s, 223 /16s and 134 /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:               99.2
Total number of prefixes smaller than registry allocations:      251361

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

Prefixes being announced by APNIC Region ASes:                   201228
    Total APNIC prefixes after maximum aggregation:               58486
    APNIC Deaggregation factor:                                    3.44
Prefixes being announced from the APNIC address blocks:          197671
    Unique aggregates announced from the APNIC address blocks:    82489
APNIC Region origin ASes present in the Internet Routing Table:    9671
    APNIC Prefixes per ASN:                                       20.44
APNIC Region origin ASes announcing only one prefix:               2706
APNIC Region transit ASes present in the Internet Routing Table:   1448
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         29
Number of APNIC region 32-bit ASNs visible in the Routing Table:   4684
Number of APNIC addresses announced to Internet:              773599104
    Equivalent to 46 /8s, 28 /16s and 47 /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:                    223479
    Total ARIN prefixes after maximum aggregation:               104656
    ARIN Deaggregation factor:                                     2.14
Prefixes being announced from the ARIN address blocks:           222695
    Unique aggregates announced from the ARIN address blocks:    105382
ARIN Region origin ASes present in the Internet Routing Table:    18450
    ARIN Prefixes per ASN:                                        12.07
ARIN Region origin ASes announcing only one prefix:                6855
ARIN Region transit ASes present in the Internet Routing Table:    1900
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          41
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2686
Number of ARIN addresses announced to Internet:              1078406272
    Equivalent to 64 /8s, 71 /16s and 44 /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:                    206596
    Total RIPE prefixes after maximum aggregation:                98079
    RIPE Deaggregation factor:                                     2.11
Prefixes being announced from the RIPE address blocks:           202985
    Unique aggregates announced from the RIPE address blocks:    120427
RIPE Region origin ASes present in the Internet Routing Table:    26018
    RIPE Prefixes per ASN:                                         7.80
RIPE Region origin ASes announcing only one prefix:               11553
RIPE Region transit ASes present in the Internet Routing Table:    3722
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:    8065
Number of RIPE addresses announced to Internet:               719061632
    Equivalent to 42 /8s, 220 /16s and 2 /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:                   96624
    Total LACNIC prefixes after maximum aggregation:              21831
    LACNIC Deaggregation factor:                                   4.43
Prefixes being announced from the LACNIC address blocks:          97999
    Unique aggregates announced from the LACNIC address blocks:   42441
LACNIC Region origin ASes present in the Internet Routing Table:   8350
    LACNIC Prefixes per ASN:                                      11.74
LACNIC Region origin ASes announcing only one prefix:              2198
LACNIC Region transit ASes present in the Internet Routing Table:  1539
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:  5896
Number of LACNIC addresses announced to Internet:             173846016
    Equivalent to 10 /8s, 92 /16s and 174 /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:                  21371
    Total AfriNIC prefixes after maximum aggregation:              4297
    AfriNIC Deaggregation factor:                                  4.97
Prefixes being announced from the AfriNIC address blocks:         27727
    Unique aggregates announced from the AfriNIC address blocks:   9058
AfriNIC Region origin ASes present in the Internet Routing Table:  1270
    AfriNIC Prefixes per ASN:                                     21.83
AfriNIC Region origin ASes announcing only one prefix:              433
AfriNIC Region transit ASes present in the Internet Routing Table:  240
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  549
Number of AfriNIC addresses announced to Internet:            104825856
    Equivalent to 6 /8s, 63 /16s and 132 /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
  7545         4735        546     552  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538         4569       4192      74  ERX-CERNET-BKB China Education and Rese
  7552         3150       1307      56  VIETEL-AS-AP Viettel Group, VN
 45899         3027       1737     111  VNPT-AS-VN VNPT Corp, VN
  9829         2733       1496     551  BSNL-NIB National Internet Backbone, IN
  4766         2545      11120     761  KIXS-AS-KR Korea Telecom, KR
  9808         2448       8699      27  CMNET-GD Guangdong Mobile Communication
  9394         2175       4898      27  CTTNET China TieTong Telecommunications
  4755         2132        429     185  TATACOMM-AS TATA Communications formerl
  9498         2054        427     171  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
 11492         3649        238     584  CABLEONE - CABLE ONE, INC., US
  6327         3636       1325      93  SHAW - Shaw Communications Inc., CA
 22773         3398       2974     157  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  7155         3236        280      25  VIASAT-SP-BACKBONE - ViaSat,Inc., US
 16509         2596       5494    1130  AMAZON-02 - Amazon.com, Inc., US
 16625         2442       1337    1842  AKAMAI-AS - Akamai Technologies, Inc., 
 30036         2155        349     205  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
 20115         2147       2749     525  CHARTER-20115 - Charter Communications,
 18566         2107        405     108  MEGAPATH5-US - MegaPath Corporation, US
  5650         2086       3074    1462  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         5430       1629     140  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  8551         3225        378      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2640        520    1908  AKAMAI-ASN1, US
 12389         2242       2222     642  ROSTELECOM-AS, RU
 34984         2079        343     541  TELLCOM-AS, TR
  9121         1668       1692      18  TTNET, TR
 13188         1605        100      47  TRIOLAN, UA
  9009         1448        151     787  M247, GB
  8402         1233        545      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
  8151         5732       3354     602  Uninet S.A. de C.V., MX
 10620         3434        535     419  Telmex Colombia S.A., CO
 11830         2708        384      34  Instituto Costarricense de Electricidad
  7303         1474       1012     253  Telecom Argentina S.A., AR
 28573         1361       2234     200  CLARO S.A., BR
  6503         1261        433      53  Axtel, S.A.B. de C.V., MX
  6147         1199        377      30  Telefonica del Peru S.A.A., PE
  3816         1086        523     143  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 13999          964        512     241  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         1179        393      21  LINKdotNET-AS, EG
 37611          906        107       9  Afrihost, ZA
 24835          888        648      21  RAYA-AS, EG
 36992          852       1531      68  ETISALAT-MISR, EG
 36903          827        416     126  MT-MPLS, MA
  8452          696       1731      19  TE-AS TE-AS, EG
 29571          512         68      12  ORANGE-COTE-IVOIRE, CI
 37492          470        470      57  ORANGE-, TN
 15706          421         32       6  Sudatel, SD
 37342          420         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         5732       3354     602  Uninet S.A. de C.V., MX
 12479         5430       1629     140  UNI2-AS, ES
  7545         4735        546     552  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538         4569       4192      74  ERX-CERNET-BKB China Education and Rese
 39891         3778        203      20  ALJAWWALSTC-AS, SA
 11492         3649        238     584  CABLEONE - CABLE ONE, INC., US
  6327         3636       1325      93  SHAW - Shaw Communications Inc., CA
 10620         3434        535     419  Telmex Colombia S.A., CO
 22773         3398       2974     157  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  7155         3236        280      25  VIASAT-SP-BACKBONE - ViaSat,Inc., US

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       5430         5290   UNI2-AS, ES
  4538       4569         4495   ERX-CERNET-BKB China Education and Research Net
  7545       4735         4183   TPG-INTERNET-AP TPG Telecom Limited, AU
 39891       3778         3758   ALJAWWALSTC-AS, SA
  6327       3636         3543   SHAW - Shaw Communications Inc., CA
 22773       3398         3241   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  7155       3236         3211   VIASAT-SP-BACKBONE - ViaSat,Inc., US
  8551       3225         3180   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  7552       3150         3094   VIETEL-AS-AP Viettel Group, VN
 11492       3649         3065   CABLEONE - CABLE ONE, INC., US

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

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

Bad AS    Designation  Network              Transit AS  Description
 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
  65550   DOCUMENT     81.8.34.0/24         15924       BORUSANTELEKOM-AS, TR
  65550   DOCUMENT     81.8.35.0/24         15924       BORUSANTELEKOM-AS, TR
  65549   DOCUMENT     117.239.163.0/24     65544       UNKNOWN
  64339   UNALLOCATED  143.0.108.0/22       18747       IFX18747 - IFX Corporation, US
  65551   DOCUMENT     149.165.246.0/24     19782       INDIANAGIGAPOP - Indiana Unive
  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&

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

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

Network            Origin AS  Description
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
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
41.220.48.0/20       36900    -Reserved AS-, ZZ
41.242.92.0/24       37643    -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        /8:12       /9:10      /10:37      /11:100     /12:294     
/13:570     /14:1131    /15:1907    /16:13322   /17:7970    /18:13900   
/19:25647   /20:40217   /21:46333   /22:93436   /23:76231   /24:427307  
/25:900     /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     4359          5430    UNI2-AS, ES
  6327     3411          3636    SHAW - Shaw Communications Inc., CA
 39891     2946          3778    ALJAWWALSTC-AS, SA
 11492     2857          3649    CABLEONE - CABLE ONE, INC., US
  8551     2679          3225    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773     2637          3398    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  7155     2602          3236    VIASAT-SP-BACKBONE - ViaSat,Inc., US
 11830     2053          2708    Instituto Costarricense de Electricidad y Telec
 18566     2002          2107    MEGAPATH5-US - MegaPath Corporation, US
 30036     1905          2155    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)
----------------------------------------------

   1:1602      2:993       3:6         4:21        5:3157      6:47     
   7:1         8:1294      9:1        12:1802     13:338      14:1989   
  15:37       16:4        17:258      18:58       20:51       23:2686   
  24:2500     25:2        27:2462     31:1973     32:100      35:36     
  36:853      37:3030     38:1734     39:297      40:121      41:3284   
  42:781      43:2007     44:148      45:7425     46:3260     47:257    
  49:1364     50:1107     51:322      52:1012     54:282      55:702    
  56:6        57:44       58:1711     59:1062     60:499      61:2126   
  62:2184     63:1831     64:4963     65:2228     66:4835     67:2776   
  68:1157     69:3524     70:1349     71:622      72:2627     74:2748   
  75:993      76:555      77:1773     78:1810     79:2276     80:1808   
  81:1493     82:1126     83:953      84:1135     85:2281     86:523    
  87:1551     88:1052     89:2629     90:216      91:6569     92:1384   
  93:2481     94:2485     95:3248     96:943      97:343      98:960    
  99:678     100:87      101:919     102:553     103:21044   104:3553   
 105:257     106:782     107:1785    108:699     109:3721    110:1658   
 111:1977    112:1490    113:1402    114:1139    115:1691    116:1749   
 117:1906    118:2077    119:1629    120:1020    121:1040    122:2350   
 123:1651    124:1472    125:1952    128:1246    129:826     130:536    
 131:1811    132:771     133:222     134:1092    135:241     136:574    
 137:753     138:2063    139:877     140:645     141:880     142:792    
 143:1041    144:893     145:492     146:1262    147:841     148:1709   
 149:924     150:788     151:1013    152:1061    153:335     154:2910   
 155:919     156:1633    157:975     158:658     159:1952    160:1607   
 161:929     162:2751    163:812     164:1194    165:1589    166:435    
 167:1410    168:3271    169:874     170:4105    171:583     172:1583   
 173:2200    174:1042    175:923     176:2330    177:4211    178:2540   
 179:1399    180:2059    181:2409    182:2694    183:1091    184:2054   
 185:15073   186:3674    187:2487    188:2957    189:1968    190:8223   
 191:1629    192:10066   193:6673    194:5433    195:4118    196:3090   
 197:1777    198:5888    199:5971    200:7074    201:5106    202:10414  
 203:10078   204:4553    205:3039    206:3237    207:3234    208:3947   
 209:4239    210:3915    211:2011    212:3116    213:2958    214:1109   
 215:55      216:5926    217:2235    218:878     219:587     220:1856   
 221:969     222:987     223:1363   

End of report


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