Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Aug 10 18:03:12 UTC 2018


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, IRNOG 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 11 Aug, 2018

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

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

BGP routing table entries examined:                              710351
    Prefixes after maximum aggregation (per Origin AS):          272851
    Deaggregation factor:                                          2.60
    Unique aggregates announced (without unneeded subnets):      341377
Total ASes present in the Internet Routing Table:                 61486
    Prefixes per ASN:                                             11.55
Origin-only ASes present in the Internet Routing Table:           53097
Origin ASes announcing only one prefix:                           23134
Transit ASes present in the Internet Routing Table:                8389
Transit-only ASes present in the Internet Routing Table:            266
Average AS path length visible in the Internet Routing Table:       4.0
    Max AS path length visible:                                      34
    Max AS path prepend of ASN ( 30873)                              32
Prefixes from unregistered ASNs in the Routing Table:                71
    Number of instances of unregistered ASNs:                        71
Number of 32-bit ASNs allocated by the RIRs:                      23624
Number of 32-bit ASNs visible in the Routing Table:               19037
Prefixes from 32-bit ASNs in the Routing Table:                   79679
Number of bogon 32-bit ASNs visible in the Routing Table:           107
Special use prefixes present in the Routing Table:                    2
Prefixes being announced from unallocated address space:            275
Number of addresses announced to Internet:                   2857141828
    Equivalent to 170 /8s, 76 /16s and 134 /24s
    Percentage of available address space announced:               77.2
    Percentage of allocated address space announced:               77.2
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.0
Total number of prefixes smaller than registry allocations:      237154

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

Prefixes being announced by APNIC Region ASes:                   193620
    Total APNIC prefixes after maximum aggregation:               55167
    APNIC Deaggregation factor:                                    3.51
Prefixes being announced from the APNIC address blocks:          191870
    Unique aggregates announced from the APNIC address blocks:    79105
APNIC Region origin ASes present in the Internet Routing Table:    8995
    APNIC Prefixes per ASN:                                       21.33
APNIC Region origin ASes announcing only one prefix:               2537
APNIC Region transit ASes present in the Internet Routing Table:   1341
Average APNIC Region AS path length visible:                        4.0
    Max APNIC Region AS path length visible:                         29
Number of APNIC region 32-bit ASNs visible in the Routing Table:   3958
Number of APNIC addresses announced to Internet:              767223811
    Equivalent to 45 /8s, 186 /16s and 232 /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:                    210910
    Total ARIN prefixes after maximum aggregation:               100181
    ARIN Deaggregation factor:                                     2.11
Prefixes being announced from the ARIN address blocks:           210886
    Unique aggregates announced from the ARIN address blocks:     99818
ARIN Region origin ASes present in the Internet Routing Table:    18212
    ARIN Prefixes per ASN:                                        11.58
ARIN Region origin ASes announcing only one prefix:                6737
ARIN Region transit ASes present in the Internet Routing Table:    1812
Average ARIN Region AS path length visible:                         3.6
    Max ARIN Region AS path length visible:                          23
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2396
Number of ARIN addresses announced to Internet:              1103025824
    Equivalent to 65 /8s, 190 /16s and 214 /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:                    194304
    Total RIPE prefixes after maximum aggregation:                92790
    RIPE Deaggregation factor:                                     2.09
Prefixes being announced from the RIPE address blocks:           190611
    Unique aggregates announced from the RIPE address blocks:    113115
RIPE Region origin ASes present in the Internet Routing Table:    25398
    RIPE Prefixes per ASN:                                         7.50
RIPE Region origin ASes announcing only one prefix:               11460
RIPE Region transit ASes present in the Internet Routing Table:    3514
Average RIPE Region AS path length visible:                         4.1
    Max RIPE Region AS path length visible:                          34
Number of RIPE region 32-bit ASNs visible in the Routing Table:    7284
Number of RIPE addresses announced to Internet:               714048896
    Equivalent to 42 /8s, 143 /16s and 133 /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
                       196608-207259
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:                   92228
    Total LACNIC prefixes after maximum aggregation:              20546
    LACNIC Deaggregation factor:                                   4.49
Prefixes being announced from the LACNIC address blocks:          93649
    Unique aggregates announced from the LACNIC address blocks:   41078
LACNIC Region origin ASes present in the Internet Routing Table:   7399
    LACNIC Prefixes per ASN:                                      12.66
LACNIC Region origin ASes announcing only one prefix:              2008
LACNIC Region transit ASes present in the Internet Routing Table:  1387
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        26
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  4944
Number of LACNIC addresses announced to Internet:             172309792
    Equivalent to 10 /8s, 69 /16s and 61 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-268700 + 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:                  19217
    Total AfriNIC prefixes after maximum aggregation:              4104
    AfriNIC Deaggregation factor:                                  4.68
Prefixes being announced from the AfriNIC address blocks:         23060
    Unique aggregates announced from the AfriNIC address blocks:   8018
AfriNIC Region origin ASes present in the Internet Routing Table:  1185
    AfriNIC Prefixes per ASN:                                     19.46
AfriNIC Region origin ASes announcing only one prefix:              392
AfriNIC Region transit ASes present in the Internet Routing Table:  237
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  455
Number of AfriNIC addresses announced to Internet:            100085248
    Equivalent to 5 /8s, 247 /16s and 46 /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         4689       4192      74  ERX-CERNET-BKB China Education and Rese
  7545         4405        477     468  TPG-INTERNET-AP TPG Telecom Limited, AU
  7552         2969       1153      83  VIETEL-AS-AP Viettel Group, VN
  4766         2830      11132     759  KIXS-AS-KR Korea Telecom, KR
  9829         2816       1497     543  BSNL-NIB National Internet Backbone, IN
 45899         2573       1634     157  VNPT-AS-VN VNPT Corp, VN
  9394         2543       4907      32  CTTNET China TieTong Telecommunications
 17974         2261        962      71  TELKOMNET-AS2-AP PT Telekomunikasi Indo
  9808         2249       8699      26  CMNET-GD Guangdong Mobile Communication
  4755         2115        417     203  TATACOMM-AS TATA Communications formerl

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         3442       1324      82  SHAW - Shaw Communications Inc., CA
 22773         3253       2968     149  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 11492         2842        256     421  CABLEONE - CABLE ONE, INC., US
 16509         2259       4791     768  AMAZON-02 - Amazon.com, Inc., US
 18566         2166        405     109  MEGAPATH5-US - MegaPath Corporation, US
 20115         2124       2641     484  CHARTER-NET-HKY-NC - Charter Communicat
 30036         2018        344     142  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
 16625         2007       1031    1445  AKAMAI-AS - Akamai Technologies, Inc., 
   209         1994       5085     604  CENTURYLINK-US-LEGACY-QWEST - Qwest Com
  7018         1764      20206    1281  ATT-INTERNET4 - AT&T Services, Inc., US

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         4682       1613     128  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  8551         2819        378      44  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2552        624    1891  AKAMAI-ASN1, US
 12389         2042       1891     731  ROSTELECOM-AS, RU
 34984         2013        335     506  TELLCOM-AS, TR
  9121         1837       1692      19  TTNET, TR
 13188         1605        100      39  TRIOLAN, UA
  6849         1241        355      21  UKRTELNET, UA
  8402         1204        544      14  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         5191       3349     607  Uninet S.A. de C.V., MX
 10620         3483        531     456  Telmex Colombia S.A., CO
 11830         2657        369      78  Instituto Costarricense de Electricidad
  6503         1666        444      63  Axtel, S.A.B. de C.V., MX
  7303         1508       1027     189  Telecom Argentina S.A., AR
 28573         1087       2241     189  CLARO S.A., BR
  3816         1020        508     128  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147          933        377      31  Telefonica del Peru S.A.A., PE
 11172          929        126      85  Alestra, S. de R.L. de C.V., MX
 18881          913       1078      30  TELEFÔNICA BRASIL S.A, BR

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         1172        396      48  LINKdotNET-AS, EG
 37611          890        107       9  Afrihost, ZA
 36903          778        391     137  MT-MPLS, MA
 36992          744       1411      40  ETISALAT-MISR, EG
 24835          635        818      18  RAYA-AS, EG
  8452          602       1730      18  TE-AS TE-AS, EG
 37492          474        470      57  ORANGE-, TN
 29571          459         68      12  ORANGE-COTE-IVOIRE, CI
 37342          386         32       1  MOVITEL, MZ
 23889          373        231      15  MauritiusTelecom, MU

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         5191       3349     607  Uninet S.A. de C.V., MX
  4538         4689       4192      74  ERX-CERNET-BKB China Education and Rese
 12479         4682       1613     128  UNI2-AS, ES
  7545         4405        477     468  TPG-INTERNET-AP TPG Telecom Limited, AU
 39891         3778        203      20  ALJAWWALSTC-AS, SA
 10620         3483        531     456  Telmex Colombia S.A., CO
  6327         3442       1324      82  SHAW - Shaw Communications Inc., CA
 22773         3253       2968     149  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  7552         2969       1153      83  VIETEL-AS-AP Viettel Group, VN
 11492         2842        256     421  CABLEONE - CABLE ONE, 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
  4538       4689         4615   ERX-CERNET-BKB China Education and Research Net
 12479       4682         4554   UNI2-AS, ES
  7545       4405         3937   TPG-INTERNET-AP TPG Telecom Limited, AU
 39891       3778         3758   ALJAWWALSTC-AS, SA
  6327       3442         3360   SHAW - Shaw Communications Inc., CA
 22773       3253         3104   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 10620       3483         3027   Telmex Colombia S.A., CO
  7552       2969         2886   VIETEL-AS-AP Viettel Group, VN
  8551       2819         2775   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11830       2657         2579   Instituto Costarricense de Electricidad y Telec

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

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

Bad AS    Designation  Network              Transit AS  Description
  64514   PRIVATE      5.42.231.0/24        35753       ITC ITC AS number, SA
 230105   UNALLOCATED  38.110.79.0/24       23015       CMC180-TOR-AS - Cambridge Merc
  64500   DOCUMENT     45.43.56.0/24       135391       AOFEI-HK AOFEI DATA INTERNATIO
 268422   UNALLOCATED  45.160.208.0/24     263321       Ejmnet Tecnologia ltda, BR
 266842   UNALLOCATED  45.238.156.0/22     265680       HNTELCO S.A, HN
  65001   PRIVATE      46.237.40.0/21       13118       ASN-YARTELECOM PJSC Rostelecom
  64513   PRIVATE      62.150.101.0/24       9155       QNET Kuwait, KW
  65537   DOCUMENT     62.162.120.0/24       6821       MT-AS-OWN bul. Orce Nikolov bb
 419333   UNALLOCATED  84.17.91.0/24        41933       IPRAGAZ-AS Istanbul/ TURKEY, T
  64121   UNALLOCATED  98.159.9.0/24        19555       KMI-NETWORK - Kinder Morgan, I

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

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

Prefix             Origin AS  Description
100.66.224.0/19        209     CENTURYLINK-US-LEGACY-QWEST - Qwest Communicati
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
41.76.136.0/22       37500    -Reserved AS-, ZZ
41.76.136.0/24       37500    -Reserved AS-, ZZ
41.76.138.0/24       37500    -Reserved AS-, ZZ
41.76.139.0/24       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
43.251.20.0/22        9381    WTT-AS-AP WTT HK Limited, HK
45.121.32.0/22      134356    UNKNOWN

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        /8:14       /9:11      /10:36      /11:99      /12:291     
/13:570     /14:1096    /15:1896    /16:13372   /17:7913    /18:13792   
/19:25356   /20:39404   /21:45677   /22:88015   /23:71590   /24:399059  
/25:800     /26:602     /27:627     /28:35      /29:20      /30:19      
/31:4       /32:53      

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

   ASN   No of nets  Total ann.  Description
 12479     3427          4682    UNI2-AS, ES
  6327     3231          3442    SHAW - Shaw Communications Inc., CA
 39891     2946          3778    ALJAWWALSTC-AS, SA
 22773     2515          3253    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  8551     2281          2819    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11492     2214          2842    CABLEONE - CABLE ONE, INC., US
 18566     2060          2166    MEGAPATH5-US - MegaPath Corporation, US
 11830     2005          2657    Instituto Costarricense de Electricidad y Telec
 30036     1770          2018    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
 10620     1575          3483    Telmex Colombia S.A., CO

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

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

   1:1612      2:835       4:18        5:2827      6:43        7:1      
   8:1128     12:1877     13:210      14:1795     15:31       16:3      
  17:190      18:54       20:50       23:2464     24:2209     25:2      
  27:2476     31:2020     32:88       35:29       36:512      37:2883   
  38:1486     39:254      40:122      41:3154     42:652      43:1967   
  44:122      45:5309     46:3101     47:197      49:1333     50:1049   
  51:318      52:1078     54:370      55:1        56:12       57:39     
  58:1622     59:991      60:403      61:2118     62:1862     63:1793   
  64:5050     65:2216     66:4705     67:2552     68:1164     69:3290   
  70:1155     71:582      72:2155     74:2722     75:422      76:463    
  77:1643     78:1686     79:2133     80:1541     81:1381     82:1031   
  83:783      84:1034     85:1986     86:566      87:1357     88:918    
  89:2356     90:216      91:6444     92:1263     93:2368     94:2393   
  95:2919     96:793      97:357      98:934      99:133     100:85     
 101:1234    102:174     103:18328   104:3578    105:216     106:769    
 107:1775    108:714     109:3147    110:1639    111:1798    112:1334   
 113:1299    114:1136    115:1660    116:1645    117:1774    118:2217   
 119:1678    120:1009    121:1047    122:2435    123:1767    124:1446   
 125:1922    128:1109    129:690     130:492     131:1636    132:727    
 133:195     134:1023    135:232     136:499     137:645     138:1946   
 139:664     140:471     141:736     142:810     143:1027    144:809    
 145:484     146:1209    147:730     148:1646    149:748     150:741    
 151:1100    152:821     153:323     154:1488    155:804     156:1313   
 157:797     158:655     159:1821    160:1296    161:841     162:2592   
 163:602     164:1080    165:1528    166:460     167:1296    168:3135   
 169:828     170:3833    171:492     172:1002    173:2027    174:929    
 175:779     176:2005    177:4035    178:2505    179:1251    180:2170   
 181:2421    182:2392    183:1240    184:1041    185:13938   186:3644   
 187:2401    188:2914    189:2037    190:8357    191:1357    192:9812   
 193:6099    194:5002    195:3983    196:2660    197:1593    198:5572   
 199:5911    200:7394    201:5018    202:10247   203:10290   204:4590   
 205:2923    206:3163    207:3207    208:3962    209:4012    210:3866   
 211:1989    212:3042    213:2811    214:1043    215:56      216:6041   
 217:2118    218:859     219:578     220:1813    221:994     222:972    
 223:1373   

End of report


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