[cmNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Ven 22 Fév 18:03:28 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 23 Feb, 2019

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

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

BGP routing table entries examined:                              738085
    Prefixes after maximum aggregation (per Origin AS):          285259
    Deaggregation factor:                                          2.59
    Unique aggregates announced (without unneeded subnets):      355452
Total ASes present in the Internet Routing Table:                 63351
    Prefixes per ASN:                                             11.65
Origin-only ASes present in the Internet Routing Table:           54573
Origin ASes announcing only one prefix:                           23640
Transit ASes present in the Internet Routing Table:                8778
Transit-only ASes present in the Internet Routing Table:            273
Average AS path length visible in the Internet Routing Table:       4.2
    Max AS path length visible:                                      28
    Max AS path prepend of ASN ( 16327)                              25
Prefixes from unregistered ASNs in the Routing Table:                33
    Number of instances of unregistered ASNs:                        36
Number of 32-bit ASNs allocated by the RIRs:                      25890
Number of 32-bit ASNs visible in the Routing Table:               21087
Prefixes from 32-bit ASNs in the Routing Table:                   91866
Number of bogon 32-bit ASNs visible in the Routing Table:            24
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            266
Number of addresses announced to Internet:                   2843064419
    Equivalent to 169 /8s, 117 /16s and 184 /24s
    Percentage of available address space announced:               76.8
    Percentage of allocated address space announced:               76.8
    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:      247477

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

Prefixes being announced by APNIC Region ASes:                   200761
    Total APNIC prefixes after maximum aggregation:               57719
    APNIC Deaggregation factor:                                    3.48
Prefixes being announced from the APNIC address blocks:          197814
    Unique aggregates announced from the APNIC address blocks:    81690
APNIC Region origin ASes present in the Internet Routing Table:    9461
    APNIC Prefixes per ASN:                                       20.91
APNIC Region origin ASes announcing only one prefix:               2664
APNIC Region transit ASes present in the Internet Routing Table:   1406
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:   4462
Number of APNIC addresses announced to Internet:              769878530
    Equivalent to 45 /8s, 227 /16s and 106 /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:                    218439
    Total ARIN prefixes after maximum aggregation:               103601
    ARIN Deaggregation factor:                                     2.11
Prefixes being announced from the ARIN address blocks:           217467
    Unique aggregates announced from the ARIN address blocks:    104185
ARIN Region origin ASes present in the Internet Routing Table:    18390
    ARIN Prefixes per ASN:                                        11.83
ARIN Region origin ASes announcing only one prefix:                6858
ARIN Region transit ASes present in the Internet Routing Table:    1855
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2587
Number of ARIN addresses announced to Internet:              1079283360
    Equivalent to 64 /8s, 84 /16s and 142 /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:                    202798
    Total RIPE prefixes after maximum aggregation:                96883
    RIPE Deaggregation factor:                                     2.09
Prefixes being announced from the RIPE address blocks:           199086
    Unique aggregates announced from the RIPE address blocks:    118225
RIPE Region origin ASes present in the Internet Routing Table:    25850
    RIPE Prefixes per ASN:                                         7.70
RIPE Region origin ASes announcing only one prefix:               11486
RIPE Region transit ASes present in the Internet Routing Table:    3635
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:    7860
Number of RIPE addresses announced to Internet:               716922304
    Equivalent to 42 /8s, 187 /16s and 93 /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:                   95402
    Total LACNIC prefixes after maximum aggregation:              22763
    LACNIC Deaggregation factor:                                   4.19
Prefixes being announced from the LACNIC address blocks:          96829
    Unique aggregates announced from the LACNIC address blocks:   41885
LACNIC Region origin ASes present in the Internet Routing Table:   8110
    LACNIC Prefixes per ASN:                                      11.94
LACNIC Region origin ASes announcing only one prefix:              2206
LACNIC Region transit ASes present in the Internet Routing Table:  1523
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  5656
Number of LACNIC addresses announced to Internet:             173272832
    Equivalent to 10 /8s, 83 /16s and 239 /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:                  20651
    Total AfriNIC prefixes after maximum aggregation:              4271
    AfriNIC Deaggregation factor:                                  4.84
Prefixes being announced from the AfriNIC address blocks:         26623
    Unique aggregates announced from the AfriNIC address blocks:   9235
AfriNIC Region origin ASes present in the Internet Routing Table:  1247
    AfriNIC Prefixes per ASN:                                     21.35
AfriNIC Region origin ASes announcing only one prefix:              426
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:                       21
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  522
Number of AfriNIC addresses announced to Internet:            103365888
    Equivalent to 6 /8s, 41 /16s and 61 /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         4654        542     544  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538         4653       4192      74  ERX-CERNET-BKB China Education and Rese
 45899         3244       1737     111  VNPT-AS-VN VNPT Corp, VN
  7552         3094       1240      49  VIETEL-AS-AP Viettel Group, VN
  4766         2805      11127     770  KIXS-AS-KR Korea Telecom, KR
  9829         2752       1496     552  BSNL-NIB National Internet Backbone, IN
  9808         2524       8699      26  CMNET-GD Guangdong Mobile Communication
  9394         2326       4906      29  CTTNET China TieTong Telecommunications
  4755         2143        422     180  TATACOMM-AS TATA Communications formerl
 17974         2005        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         3584       1326      92  SHAW - Shaw Communications Inc., CA
 11492         3517        227     602  CABLEONE - CABLE ONE, INC., US
 22773         3303       2977     165  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 16509         2491       5369    1051  AMAZON-02 - Amazon.com, Inc., US
 16625         2272       1261    1743  AKAMAI-AS - Akamai Technologies, Inc., 
 20115         2151       2744     535  CHARTER-20115 - Charter Communications,
 18566         2123        405     108  MEGAPATH5-US - MegaPath Corporation, US
 30036         2105        349     221  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
   209         2090       5094     584  CENTURYLINK-US-LEGACY-QWEST - CenturyLi
  5650         2089       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         5337       1626     137  UNI2-AS, ES
 39891         3649        195      21  ALJAWWALSTC-AS, SA
  8551         3249        378      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2635        550    1911  AKAMAI-ASN1, US
 12389         2224       2221     637  ROSTELECOM-AS, RU
 34984         2060        340     533  TELLCOM-AS, TR
  9121         1679       1692      18  TTNET, TR
 13188         1604        100      46  TRIOLAN, UA
  9009         1344        145     747  M247, GB
  8402         1298        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         5579       3330     591  Uninet S.A. de C.V., MX
 10620         2745        411    1053  Telmex Colombia S.A., CO
 11830         2699        384      34  Instituto Costarricense de Electricidad
  6503         1508        433      54  Axtel, S.A.B. de C.V., MX
  7303         1418        947     237  Telecom Argentina S.A., AR
 28573         1284       2246     195  CLARO S.A., BR
  6147         1269        377      28  Telefonica del Peru S.A.A., PE
  3816         1022        506     114  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11172          931        144      66  Alestra, S. de R.L. de C.V., MX
 13999          929        533     244  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         1226        393      21  LINKdotNET-AS, EG
 37611          926        107       9  Afrihost, ZA
 24835          847        636      22  RAYA-AS, EG
 36992          808       1534      57  ETISALAT-MISR, EG
 36903          807        406     151  MT-MPLS, MA
  8452          688       1731      20  TE-AS TE-AS, EG
 29571          486         70      13  ORANGE-COTE-IVOIRE, CI
 37492          470        470      57  ORANGE-, TN
 15399          428         45      11  WANANCHI-, KE
 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         5579       3330     591  Uninet S.A. de C.V., MX
 12479         5337       1626     137  UNI2-AS, ES
  7545         4654        542     544  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538         4653       4192      74  ERX-CERNET-BKB China Education and Rese
 39891         3649        195      21  ALJAWWALSTC-AS, SA
  6327         3584       1326      92  SHAW - Shaw Communications Inc., CA
 11492         3517        227     602  CABLEONE - CABLE ONE, INC., US
 22773         3303       2977     165  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  8551         3249        378      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 45899         3244       1737     111  VNPT-AS-VN VNPT Corp, VN

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       5337         5200   UNI2-AS, ES
  4538       4653         4579   ERX-CERNET-BKB China Education and Research Net
  7545       4654         4110   TPG-INTERNET-AP TPG Telecom Limited, AU
 39891       3649         3628   ALJAWWALSTC-AS, SA
  6327       3584         3492   SHAW - Shaw Communications Inc., CA
  8551       3249         3204   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773       3303         3138   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 45899       3244         3133   VNPT-AS-VN VNPT Corp, VN
  7552       3094         3045   VIETEL-AS-AP Viettel Group, VN
 11492       3517         2915   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
 268721   UNALLOCATED  45.171.152.0/22     263877       rede banda larga, BR
 268721   UNALLOCATED  45.171.152.0/23     263877       rede banda larga, BR
 268721   UNALLOCATED  45.171.152.0/24     263877       rede banda larga, BR
 268721   UNALLOCATED  45.171.153.0/24     263877       rede banda larga, BR
 268721   UNALLOCATED  45.171.154.0/23     263877       rede banda larga, BR
 268721   UNALLOCATED  45.171.154.0/24     263877       rede banda larga, BR
 268721   UNALLOCATED  45.171.155.0/24     263877       rede banda larga, BR
 266842   UNALLOCATED  45.238.156.0/22     265680       HNTELCO S.A, HN
1358592   UNALLOCATED  103.134.14.0/23      63956       COLO-AS-AP Colocation Australi

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
23.175.32.0/24        4508    NEUSTYLE - NeuStyle, CA
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

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      /11:100     /12:291     
/13:567     /14:1134    /15:1906    /16:13369   /17:7906    /18:13896   
/19:25719   /20:39953   /21:46096   /22:92157   /23:75178   /24:416835  
/25:949     /26:833     /27:892     /28:27      /29:7       /30:15      
/31:0       /32:197     

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

   ASN   No of nets  Total ann.  Description
 12479     4216          5337    UNI2-AS, ES
  6327     3358          3584    SHAW - Shaw Communications Inc., CA
 39891     2946          3649    ALJAWWALSTC-AS, SA
 11492     2770          3517    CABLEONE - CABLE ONE, INC., US
  8551     2705          3249    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773     2543          3303    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 11830     2044          2699    Instituto Costarricense de Electricidad y Telec
 18566     2018          2123    MEGAPATH5-US - MegaPath Corporation, US
 30036     1852          2105    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
  5650     1761          2089    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)
----------------------------------------------

   1:1606      2:885       4:22        5:2755      6:47        7:1      
   8:1179     12:1859     13:313      14:1905     15:38       16:4      
  17:221      18:59       20:49       23:2583     24:2521     25:2      
  27:2560     31:2075     32:94       35:36       36:823      37:3033   
  38:1689     39:294      40:122      41:3139     42:739      43:2007   
  44:143      45:6726     46:3262     47:250      49:1343     50:1094   
  51:191      52:1024     54:289      55:1        56:6        57:41     
  58:1708     59:1064     60:494      61:2054     62:2040     63:1794   
  64:4986     65:2194     66:4821     67:2697     68:1161     69:3514   
  70:1326     71:600      72:2375     74:2755     75:512      76:547    
  77:1689     78:1764     79:2325     80:1710     81:1446     82:1115   
  83:867      84:1104     85:2164     86:553      87:1537     88:1014   
  89:2426     90:216      91:6573     92:1234     93:2473     94:2494   
  95:3246     96:921      97:346      98:940      99:206     100:86     
 101:1149    102:416     103:20069   104:3513    105:247     106:871    
 107:1761    108:697     109:3685    110:1629    111:1874    112:1395   
 113:1438    114:1132    115:1716    116:1697    117:1917    118:2140   
 119:1617    120:1048    121:1031    122:2286    123:1639    124:1448   
 125:1959    128:1245    129:680     130:526     131:1626    132:721    
 133:218     134:1050    135:240     136:555     137:707     138:2037   
 139:842     140:574     141:820     142:801     143:1042    144:838    
 145:505     146:1259    147:794     148:1690    149:782     150:779    
 151:1008    152:1013    153:321     154:2584    155:984     156:1689   
 157:907     158:670     159:1923    160:1517    161:916     162:2674   
 163:784     164:1133    165:1569    166:434     167:1393    168:3266   
 169:869     170:4010    171:557     172:1106    173:2182    174:1012   
 175:880     176:2314    177:4012    178:2542    179:1347    180:2104   
 181:2430    182:2674    183:1090    184:1164    185:14787   186:3741   
 187:2403    188:2890    189:1956    190:8346    191:1455    192:10044  
 193:6583    194:5376    195:4055    196:3001    197:1649    198:5786   
 199:5967    200:7174    201:5069    202:10185   203:10184   204:4612   
 205:2991    206:3237    207:3294    208:3967    209:4234    210:3931   
 211:1990    212:3055    213:2891    214:1076    215:52      216:5970   
 217:2195    218:916     219:579     220:1857    221:996     222:993    
 223:1444   

End of report


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