[cmNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Ven 15 Fév 18:03:54 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 16 Feb, 2019

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

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

BGP routing table entries examined:                              737069
    Prefixes after maximum aggregation (per Origin AS):          284406
    Deaggregation factor:                                          2.59
    Unique aggregates announced (without unneeded subnets):      355337
Total ASes present in the Internet Routing Table:                 63249
    Prefixes per ASN:                                             11.65
Origin-only ASes present in the Internet Routing Table:           54461
Origin ASes announcing only one prefix:                           23611
Transit ASes present in the Internet Routing Table:                8788
Transit-only ASes present in the Internet Routing Table:            270
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:                26
    Number of instances of unregistered ASNs:                        28
Number of 32-bit ASNs allocated by the RIRs:                      25797
Number of 32-bit ASNs visible in the Routing Table:               21025
Prefixes from 32-bit ASNs in the Routing Table:                   91435
Number of bogon 32-bit ASNs visible in the Routing Table:            23
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            265
Number of addresses announced to Internet:                   2840868547
    Equivalent to 169 /8s, 84 /16s and 54 /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:               99.2
Total number of prefixes smaller than registry allocations:      246891

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

Prefixes being announced by APNIC Region ASes:                   200469
    Total APNIC prefixes after maximum aggregation:               57566
    APNIC Deaggregation factor:                                    3.48
Prefixes being announced from the APNIC address blocks:          197448
    Unique aggregates announced from the APNIC address blocks:    81948
APNIC Region origin ASes present in the Internet Routing Table:    9451
    APNIC Prefixes per ASN:                                       20.89
APNIC Region origin ASes announcing only one prefix:               2657
APNIC Region transit ASes present in the Internet Routing Table:   1413
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:   4459
Number of APNIC addresses announced to Internet:              769815906
    Equivalent to 45 /8s, 226 /16s and 117 /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:                    217989
    Total ARIN prefixes after maximum aggregation:               103510
    ARIN Deaggregation factor:                                     2.11
Prefixes being announced from the ARIN address blocks:           217330
    Unique aggregates announced from the ARIN address blocks:    104080
ARIN Region origin ASes present in the Internet Routing Table:    18359
    ARIN Prefixes per ASN:                                        11.84
ARIN Region origin ASes announcing only one prefix:                6834
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:    2581
Number of ARIN addresses announced to Internet:              1077344416
    Equivalent to 64 /8s, 54 /16s and 248 /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:                    202728
    Total RIPE prefixes after maximum aggregation:                96543
    RIPE Deaggregation factor:                                     2.10
Prefixes being announced from the RIPE address blocks:           198781
    Unique aggregates announced from the RIPE address blocks:    117953
RIPE Region origin ASes present in the Internet Routing Table:    25827
    RIPE Prefixes per ASN:                                         7.70
RIPE Region origin ASes announcing only one prefix:               11496
RIPE Region transit ASes present in the Internet Routing Table:    3636
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:    7839
Number of RIPE addresses announced to Internet:               716829376
    Equivalent to 42 /8s, 185 /16s and 242 /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:                   95234
    Total LACNIC prefixes after maximum aggregation:              22511
    LACNIC Deaggregation factor:                                   4.23
Prefixes being announced from the LACNIC address blocks:          96677
    Unique aggregates announced from the LACNIC address blocks:   41867
LACNIC Region origin ASes present in the Internet Routing Table:   8074
    LACNIC Prefixes per ASN:                                      11.97
LACNIC Region origin ASes announcing only one prefix:              2195
LACNIC Region transit ASes present in the Internet Routing Table:  1526
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:  5624
Number of LACNIC addresses announced to Internet:             173195520
    Equivalent to 10 /8s, 82 /16s and 193 /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:                  20622
    Total AfriNIC prefixes after maximum aggregation:              4255
    AfriNIC Deaggregation factor:                                  4.85
Prefixes being announced from the AfriNIC address blocks:         26568
    Unique aggregates announced from the AfriNIC address blocks:   9252
AfriNIC Region origin ASes present in the Internet Routing Table:  1249
    AfriNIC Prefixes per ASN:                                     21.27
AfriNIC Region origin ASes announcing only one prefix:              429
AfriNIC Region transit ASes present in the Internet Routing Table:  244
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:            103345152
    Equivalent to 6 /8s, 40 /16s and 236 /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         4648        541     540  TPG-INTERNET-AP TPG Telecom Limited, AU
  7552         3085       1240      50  VIETEL-AS-AP Viettel Group, VN
 45899         3014       1729     113  VNPT-AS-VN VNPT Corp, VN
  4766         2808      11127     766  KIXS-AS-KR Korea Telecom, KR
  9829         2751       1496     551  BSNL-NIB National Internet Backbone, IN
  9808         2437       8699      26  CMNET-GD Guangdong Mobile Communication
  9394         2372       4906      29  CTTNET China TieTong Telecommunications
  4755         2144        422     180  TATACOMM-AS TATA Communications formerl
 17974         2006        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         3596       1326      92  SHAW - Shaw Communications Inc., CA
 11492         3505        226     592  CABLEONE - CABLE ONE, INC., US
 22773         3311       2978     172  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 16509         2545       5387    1025  AMAZON-02 - Amazon.com, Inc., US
 16625         2278       1249    1724  AKAMAI-AS - Akamai Technologies, Inc., 
 20115         2151       2744     535  CHARTER-20115 - Charter Communications,
 18566         2130        405     108  MEGAPATH5-US - MegaPath Corporation, US
 30036         2098        349     239  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
   209         2093       5095     585  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         5319       1628     138  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  8551         3260        378      43  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2614        552    1904  AKAMAI-ASN1, US
 12389         2226       2221     637  ROSTELECOM-AS, RU
 34984         2059        339     531  TELLCOM-AS, TR
  9121         1735       1692      18  TTNET, TR
 13188         1604        100      46  TRIOLAN, UA
  9009         1337        145     745  M247, GB
  8402         1310        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         5572       3329     590  Uninet S.A. de C.V., MX
 10620         2875        436    1014  Telmex Colombia S.A., CO
 11830         2697        386      36  Instituto Costarricense de Electricidad
  6503         1512        433      54  Axtel, S.A.B. de C.V., MX
  7303         1408        937     236  Telecom Argentina S.A., AR
  6147         1271        377      29  Telefonica del Peru S.A.A., PE
 28573         1268       2246     186  CLARO S.A., BR
  3816         1021        506     114  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11172          931        144      66  Alestra, S. de R.L. de C.V., MX
 13999          916        530     245  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         1217        393      21  LINKdotNET-AS, EG
 37611          932        107       9  Afrihost, ZA
 24835          847        636      22  RAYA-AS, EG
 36992          812       1538      43  ETISALAT-MISR, EG
 36903          810        407     147  MT-MPLS, MA
  8452          648       1731      20  TE-AS TE-AS, EG
 29571          486         70      13  ORANGE-COTE-IVOIRE, CI
 37492          468        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         5572       3329     590  Uninet S.A. de C.V., MX
 12479         5319       1628     138  UNI2-AS, ES
  4538         4653       4192      74  ERX-CERNET-BKB China Education and Rese
  7545         4648        541     540  TPG-INTERNET-AP TPG Telecom Limited, AU
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  6327         3596       1326      92  SHAW - Shaw Communications Inc., CA
 11492         3505        226     592  CABLEONE - CABLE ONE, INC., US
 22773         3311       2978     172  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  8551         3260        378      43  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
  7552         3085       1240      50  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       5319         5181   UNI2-AS, ES
  4538       4653         4579   ERX-CERNET-BKB China Education and Research Net
  7545       4648         4108   TPG-INTERNET-AP TPG Telecom Limited, AU
 39891       3778         3758   ALJAWWALSTC-AS, SA
  6327       3596         3504   SHAW - Shaw Communications Inc., CA
  8551       3260         3217   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773       3311         3139   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  7552       3085         3035   VIETEL-AS-AP Viettel Group, VN
 11492       3505         2913   CABLEONE - CABLE ONE, INC., US
 45899       3014         2901   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
1358592   UNALLOCATED  103.134.14.0/23      63956       COLO-AS-AP Colocation Australi
1358592   UNALLOCATED  103.134.15.0/24      63956       COLO-AS-AP Colocation Australi
  65549   DOCUMENT     117.239.163.0/24     65544       UNKNOWN
 224413   UNALLOCATED  131.221.136.0/22    264413       Conecta Telecom Ltda, BR
  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&

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

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

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

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

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

Network            Origin AS  Description
27.100.7.0/24        56096    UNKNOWN
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
43.255.82.0/24       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      /12:291     
/13:566     /14:1132    /15:1908    /16:13352   /17:7902    /18:13887   
/19:25593   /20:39779   /21:46105   /22:91898   /23:75067   /24:416564  
/25:938     /26:826     /27:878     /28:20      /29:6       /30:7       
/31:0       /32:193     

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

   ASN   No of nets  Total ann.  Description
 12479     4199          5319    UNI2-AS, ES
  6327     3359          3596    SHAW - Shaw Communications Inc., CA
 39891     2946          3778    ALJAWWALSTC-AS, SA
 11492     2761          3505    CABLEONE - CABLE ONE, INC., US
  8551     2716          3260    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773     2552          3311    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 11830     2040          2697    Instituto Costarricense de Electricidad y Telec
 18566     2025          2130    MEGAPATH5-US - MegaPath Corporation, US
 30036     1845          2098    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)
----------------------------------------------

   1:1610      2:890       4:22        5:2845      6:47        7:1      
   8:1196     12:1868     13:313      14:1895     15:38       16:4      
  17:220      18:59       20:49       23:2604     24:2507     25:2      
  27:2547     31:2067     32:94       35:36       36:830      37:3035   
  38:1652     39:294      40:122      41:3132     42:723      43:2001   
  44:140      45:6663     46:3244     47:249      49:1342     50:1089   
  51:319      52:1046     54:329      55:1        56:6        57:41     
  58:1707     59:1061     60:495      61:2058     62:2040     63:1794   
  64:5078     65:2193     66:4806     67:2690     68:1173     69:3516   
  70:1154     71:600      72:2297     74:2757     75:421      76:544    
  77:1693     78:1763     79:2320     80:1612     81:1436     82:1111   
  83:867      84:1100     85:2143     86:552      87:1535     88:998    
  89:2422     90:217      91:6560     92:1233     93:2441     94:2481   
  95:3242     96:920      97:348      98:939      99:174     100:88     
 101:1163    102:407     103:20037   104:3569    105:247     106:866    
 107:1818    108:697     109:3684    110:1627    111:1870    112:1393   
 113:1413    114:1131    115:1721    116:1694    117:1916    118:2181   
 119:1625    120:1047    121:1032    122:2287    123:1640    124:1446   
 125:1960    128:1231    129:677     130:524     131:1626    132:712    
 133:218     134:1047    135:239     136:553     137:707     138:2030   
 139:840     140:572     141:814     142:797     143:1014    144:901    
 145:505     146:1251    147:792     148:1714    149:795     150:787    
 151:1006    152:1008    153:321     154:2627    155:977     156:1671   
 157:903     158:672     159:1921    160:1511    161:917     162:2676   
 163:778     164:1129    165:1567    166:439     167:1382    168:3285   
 169:871     170:4010    171:529     172:1093    173:2188    174:1012   
 175:879     176:2305    177:3994    178:2548    179:1334    180:2089   
 181:2436    182:2688    183:1049    184:1153    185:14732   186:3706   
 187:2397    188:2912    189:1949    190:8294    191:1449    192:10050  
 193:6556    194:5376    195:4053    196:2988    197:1744    198:5773   
 199:5986    200:7319    201:5111    202:10152   203:10185   204:4606   
 205:2991    206:3273    207:3273    208:3981    209:4230    210:3924   
 211:1987    212:3059    213:2895    214:1075    215:52      216:5978   
 217:2198    218:919     219:578     220:1850    221:996     222:991    
 223:1440   

End of report


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