[cmNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Ven 1 Fév 18:03:18 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 02 Feb, 2019

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

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

BGP routing table entries examined:                              735331
    Prefixes after maximum aggregation (per Origin AS):          283580
    Deaggregation factor:                                          2.59
    Unique aggregates announced (without unneeded subnets):      354621
Total ASes present in the Internet Routing Table:                 63092
    Prefixes per ASN:                                             11.65
Origin-only ASes present in the Internet Routing Table:           54357
Origin ASes announcing only one prefix:                           23579
Transit ASes present in the Internet Routing Table:                8735
Transit-only ASes present in the Internet Routing Table:            268
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:                21
    Number of instances of unregistered ASNs:                        23
Number of 32-bit ASNs allocated by the RIRs:                      25627
Number of 32-bit ASNs visible in the Routing Table:               20862
Prefixes from 32-bit ASNs in the Routing Table:                   90590
Number of bogon 32-bit ASNs visible in the Routing Table:            16
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            271
Number of addresses announced to Internet:                   2842533251
    Equivalent to 169 /8s, 109 /16s and 157 /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:      246362

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

Prefixes being announced by APNIC Region ASes:                   200035
    Total APNIC prefixes after maximum aggregation:               57413
    APNIC Deaggregation factor:                                    3.48
Prefixes being announced from the APNIC address blocks:          197150
    Unique aggregates announced from the APNIC address blocks:    81608
APNIC Region origin ASes present in the Internet Routing Table:    9414
    APNIC Prefixes per ASN:                                       20.94
APNIC Region origin ASes announcing only one prefix:               2663
APNIC Region transit ASes present in the Internet Routing Table:   1397
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:   4417
Number of APNIC addresses announced to Internet:              769642274
    Equivalent to 45 /8s, 223 /16s and 207 /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:                    217799
    Total ARIN prefixes after maximum aggregation:               103376
    ARIN Deaggregation factor:                                     2.11
Prefixes being announced from the ARIN address blocks:           217128
    Unique aggregates announced from the ARIN address blocks:    104009
ARIN Region origin ASes present in the Internet Routing Table:    18341
    ARIN Prefixes per ASN:                                        11.84
ARIN Region origin ASes announcing only one prefix:                6829
ARIN Region transit ASes present in the Internet Routing Table:    1851
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          23
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2562
Number of ARIN addresses announced to Internet:              1079669920
    Equivalent to 64 /8s, 90 /16s and 116 /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:                    202096
    Total RIPE prefixes after maximum aggregation:                96285
    RIPE Deaggregation factor:                                     2.10
Prefixes being announced from the RIPE address blocks:           198251
    Unique aggregates announced from the RIPE address blocks:    117420
RIPE Region origin ASes present in the Internet Routing Table:    25787
    RIPE Prefixes per ASN:                                         7.69
RIPE Region origin ASes announcing only one prefix:               11488
RIPE Region transit ASes present in the Internet Routing Table:    3631
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:    7793
Number of RIPE addresses announced to Internet:               716711872
    Equivalent to 42 /8s, 184 /16s and 39 /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:                   95098
    Total LACNIC prefixes after maximum aggregation:              22279
    LACNIC Deaggregation factor:                                   4.27
Prefixes being announced from the LACNIC address blocks:          96501
    Unique aggregates announced from the LACNIC address blocks:   42173
LACNIC Region origin ASes present in the Internet Routing Table:   8027
    LACNIC Prefixes per ASN:                                      12.02
LACNIC Region origin ASes announcing only one prefix:              2174
LACNIC Region transit ASes present in the Internet Routing Table:  1505
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:  5577
Number of LACNIC addresses announced to Internet:             173075968
    Equivalent to 10 /8s, 80 /16s and 238 /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:                  20281
    Total AfriNIC prefixes after maximum aggregation:              4209
    AfriNIC Deaggregation factor:                                  4.82
Prefixes being announced from the AfriNIC address blocks:         26030
    Unique aggregates announced from the AfriNIC address blocks:   9167
AfriNIC Region origin ASes present in the Internet Routing Table:  1239
    AfriNIC Prefixes per ASN:                                     21.01
AfriNIC Region origin ASes announcing only one prefix:              425
AfriNIC Region transit ASes present in the Internet Routing Table:  246
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:  513
Number of AfriNIC addresses announced to Internet:            103031296
    Equivalent to 6 /8s, 36 /16s and 34 /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         4653       4192      74  ERX-CERNET-BKB China Education and Rese
  7545         4579        531     527  TPG-INTERNET-AP TPG Telecom Limited, AU
  7552         3056       1241      49  VIETEL-AS-AP Viettel Group, VN
 45899         3006       1725     112  VNPT-AS-VN VNPT Corp, VN
  4766         2811      11127     767  KIXS-AS-KR Korea Telecom, KR
  9829         2752       1496     551  BSNL-NIB National Internet Backbone, IN
  9808         2437       8699      26  CMNET-GD Guangdong Mobile Communication
  9394         2395       4906      29  CTTNET China TieTong Telecommunications
  4755         2142        438     183  TATACOMM-AS TATA Communications formerl
 17974         2034        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         3578       1326      92  SHAW - Shaw Communications Inc., CA
 11492         3495        226     595  CABLEONE - CABLE ONE, INC., US
 22773         3310       2979     174  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 16509         2598       5391    1021  AMAZON-02 - Amazon.com, Inc., US
 16625         2275       1250    1715  AKAMAI-AS - Akamai Technologies, Inc., 
 20115         2152       2759     536  CHARTER-20115 - Charter Communications,
 18566         2136        405     108  MEGAPATH5-US - MegaPath Corporation, US
  5650         2089       3074    1462  FRONTIER-FRTR - Frontier Communications
 30036         2078        345     292  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
   209         2068       5076     577  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         5329       1628     138  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  8551         3273        378      43  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2631        560    1915  AKAMAI-ASN1, US
 12389         2205       2209     657  ROSTELECOM-AS, RU
 34984         2066        339     527  TELLCOM-AS, TR
  9121         1682       1691      17  TTNET, TR
 13188         1605        100      46  TRIOLAN, UA
  9009         1327        145     741  M247, GB
  8402         1316        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         5546       3325     589  Uninet S.A. de C.V., MX
 10620         2959        448     993  Telmex Colombia S.A., CO
 11830         2683        371      60  Instituto Costarricense de Electricidad
  6503         1565        449      55  Axtel, S.A.B. de C.V., MX
  7303         1409        934     221  Telecom Argentina S.A., AR
  6147         1286        377      29  Telefonica del Peru S.A.A., PE
 28573         1173       2240     183  CLARO S.A., BR
  3816         1029        511     115  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11172          931        143      66  Alestra, S. de R.L. de C.V., MX
 13999          911        528     243  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         1152        393      21  LINKdotNET-AS, EG
 37611          907        107       9  Afrihost, ZA
 36903          797        401     142  MT-MPLS, MA
 36992          789       1411      44  ETISALAT-MISR, EG
 24835          685        636      22  RAYA-AS, EG
  8452          640       1731      20  TE-AS TE-AS, EG
 29571          485         70      13  ORANGE-COTE-IVOIRE, CI
 37492          468        470      57  ORANGE-, TN
 15399          425         45      11  WANANCHI-, KE
 37342          419         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         5546       3325     589  Uninet S.A. de C.V., MX
 12479         5329       1628     138  UNI2-AS, ES
  4538         4653       4192      74  ERX-CERNET-BKB China Education and Rese
  7545         4579        531     527  TPG-INTERNET-AP TPG Telecom Limited, AU
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  6327         3578       1326      92  SHAW - Shaw Communications Inc., CA
 11492         3495        226     595  CABLEONE - CABLE ONE, INC., US
 22773         3310       2979     174  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  8551         3273        378      43  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
  7552         3056       1241      49  VIETEL-AS-AP Viettel Group, 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       5329         5191   UNI2-AS, ES
  4538       4653         4579   ERX-CERNET-BKB China Education and Research Net
  7545       4579         4052   TPG-INTERNET-AP TPG Telecom Limited, AU
 39891       3778         3758   ALJAWWALSTC-AS, SA
  6327       3578         3486   SHAW - Shaw Communications Inc., CA
  8551       3273         3230   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773       3310         3136   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  7552       3056         3007   VIETEL-AS-AP Viettel Group, VN
 11492       3495         2900   CABLEONE - CABLE ONE, INC., US
 45899       3006         2894   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
  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&
  64011   UNALLOCATED  166.220.96.0/19      20057       ATT-MOBILITY-LLC-AS20057 - AT&
  64141   UNALLOCATED  181.119.152.0/24    264619       Wireless Provider, AR

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
23.171.96.0/24      394378    NMICA-01 - NMICA, LLC, US
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
43.255.80.0/24       36351    SOFTLAYER - SoftLayer Technologies Inc., US

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    /15:1918    /16:13373   /17:7882    /18:13853   
/19:25609   /20:39703   /21:46133   /22:91481   /23:74783   /24:415615  
/25:924     /26:820     /27:864     /28:20      /29:6       /30:7       
/31:0       /32:194     

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

   ASN   No of nets  Total ann.  Description
 12479     4179          5329    UNI2-AS, ES
  6327     3340          3578    SHAW - Shaw Communications Inc., CA
 39891     2946          3778    ALJAWWALSTC-AS, SA
 11492     2757          3495    CABLEONE - CABLE ONE, INC., US
  8551     2729          3273    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     2029          2683    Instituto Costarricense de Electricidad y Telec
 30036     1826          2078    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)
----------------------------------------------

   1:1612      2:896       4:23        5:2786      6:47        7:1      
   8:1176     12:1867     13:315      14:1867     15:37       16:2      
  17:219      18:57       20:50       23:2604     24:2481     25:2      
  27:2544     31:2043     32:94       35:35       36:831      37:3016   
  38:1616     39:294      40:122      41:3127     42:726      43:2003   
  44:141      45:6567     46:3223     47:248      49:1344     50:1080   
  51:319      52:1078     54:347      55:1        56:6        57:41     
  58:1705     59:1054     60:481      61:2056     62:2075     63:1794   
  64:5076     65:2195     66:4826     67:2693     68:1172     69:3485   
  70:1150     71:603      72:2288     74:2758     75:418      76:544    
  77:1730     78:1762     79:2314     80:1641     81:1423     82:1103   
  83:897      84:1084     85:2140     86:560      87:1554     88:990    
  89:2414     90:215      91:6569     92:1239     93:2434     94:2482   
  95:3232     96:919      97:349      98:944      99:169     100:87     
 101:1160    102:373     103:19926   104:3562    105:249     106:867    
 107:1812    108:693     109:3672    110:1611    111:1865    112:1389   
 113:1409    114:1148    115:1722    116:1671    117:1919    118:2190   
 119:1621    120:1046    121:1030    122:2366    123:1644    124:1454   
 125:1950    128:1206    129:675     130:523     131:1646    132:713    
 133:218     134:1046    135:238     136:550     137:681     138:1959   
 139:835     140:570     141:803     142:801     143:1008    144:891    
 145:505     146:1248    147:802     148:1713    149:794     150:782    
 151:1005    152:1005    153:324     154:2446    155:966     156:1650   
 157:892     158:657     159:1919    160:1512    161:910     162:2671   
 163:780     164:1135    165:1573    166:438     167:1384    168:3263   
 169:869     170:4013    171:526     172:1090    173:2157    174:999    
 175:883     176:2301    177:3997    178:2559    179:1292    180:2090   
 181:2440    182:2680    183:1049    184:1149    185:14683   186:3707   
 187:2452    188:2894    189:2008    190:8343    191:1454    192:10068  
 193:6538    194:5335    195:4044    196:2973    197:1736    198:5789   
 199:5973    200:7273    201:5104    202:10104   203:10152   204:4619   
 205:3005    206:3318    207:3274    208:3959    209:4228    210:3939   
 211:1986    212:3063    213:2837    214:1082    215:52      216:5978   
 217:2199    218:919     219:574     220:1845    221:995     222:994    
 223:1427   

End of report


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