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InternetData
65,536 routable28 ASes
/16 subnet

203.15.0.0/16

Where this subnet is, who announces it, and what our databases hold in it. Below, every /24 inside it; open one for its addresses.

65,536
routable addresses
65,536
geolocated
8
countries
28
announcing ASes
43
announced prefixes
228
anonymous addresses

Where it is

Addresses IP Geolocation places in each country, as a share of those it places.

  1. Australia49,664 · 75.78%
  2. China12,544 · 19.14%
  3. India1,024 · 1.56%
  4. United States1,024 · 1.56%
  5. Singapore512 · 0.78%
  6. Canada256 · 0.39%
  7. Hong Kong256 · 0.39%
  8. Taiwan256 · 0.39%

Who announces it

Each /24 counted for the AS announcing most of it, as a share of the routable addresses.

top 25 of 28
  1. AS24436University of Queensland8,192 · 12.50%
  2. AS133774Fuzhou4,096 · 6.25%
  3. AS703Verizon Business2,048 · 3.13%
  4. AS7550ASN for SBS2,048 · 3.13%
  5. AS9650QLD Government Business (IT)1,536 · 2.34%
  6. AS18361ASX Operations Pty Ltd1,024 · 1.56%
  7. AS23764CTGNet1,024 · 1.56%
  8. AS1221Telstra Limited512 · 0.78%
  9. AS9313Network Technology (AUST) P/L512 · 0.78%
  10. AS134320Heritage Computers Pvt. Ltd.512 · 0.78%

What the databases see

Addresses each address-keyed database holds in this block, as a share of its routable addresses. Counts overlap: one address can be in several.

Announced prefixes

Every prefix inside this block that BGP Route saw announced, with its origin and RPKI status.

43 prefixes
PREFIXORIGINCOUNTRYRPKIPEERSFIRST SEEN
203.15.0.0/20AS133774FuzhouChinaValid172026-10-02
203.15.16.0/24AS134320Heritage Computers Pvt. Ltd.IndiaValid172026-10-02
203.15.17.0/24AS134320Heritage Computers Pvt. Ltd.IndiaValid172026-11-03
203.15.18.0/23AS151626INDIAN CYBERCRIME COORDINATION CENTREIndiaValid12026-10-02
203.15.32.0/19AS24436University of QueenslandAustraliaNot found192026-10-02
203.15.42.0/23AS24436University of QueenslandAustraliaNot found192026-10-02
203.15.64.0/24AS18165ResMed Dual Internet GatewayAustraliaNot found172026-10-02
203.15.65.0/24AS13335Cloudflare, Inc.AustraliaValid182026-10-02
203.15.68.0/24AS1221Telstra LimitedAustraliaValid172026-10-02
203.15.70.0/24AS4826Vocus Connect International BackboneAustraliaNot found12026-10-02
203.15.96.0/21AS7550ASN for SBSAustraliaNot found172026-10-02
203.15.107.0/24AS154625Hans MullerAustraliaValid172026-10-02
203.15.109.0/24AS7575Australian Academic and Research Network (AARNet)AustraliaNot found192026-10-02
203.15.111.0/24AS7545TPG Telecom LimitedUnited StatesNot found172026-10-02
203.15.113.0/24AS23764CTGNetChinaValid172026-10-02
203.15.114.0/24AS4809China Telecom Next Generation Carrier NetworkHong KongValid172026-10-02
203.15.116.0/24AS23764CTGNetChinaValid172026-10-02
203.15.117.0/24AS23764CTGNetSingaporeValid172026-10-02
203.15.118.0/24AS23764CTGNetSingaporeValid172026-10-02
203.15.120.0/23AS137409GSL Networks Pty LTDUnited StatesNot found172026-10-02
203.15.120.0/24AS137409GSL Networks Pty LTDUnited StatesNot found172026-10-02
203.15.121.0/24AS137409GSL Networks Pty LTDUnited StatesNot found172026-10-02
203.15.122.0/24AS24433Central Queensland UniversityAustraliaValid192026-10-02
203.15.124.0/22AS9650QLD Government Business (IT)AustraliaValid172026-10-02
203.15.134.0/23AS9313Network Technology (AUST) P/LAustraliaNot found172026-10-02
203.15.141.0/24AS139207ServerworldAustraliaValid172026-10-02
203.15.142.0/24AS139890TRANSACTION SOLUTIONS LIMITEDAustraliaNot found172026-10-02
203.15.144.0/22AS18361ASX Operations Pty LtdAustraliaNot found172026-10-02
203.15.144.0/23AS18361ASX Operations Pty LtdAustraliaNot found172026-10-02
203.15.145.0/24AS18361ASX Operations Pty LtdAustraliaNot found172026-10-02
203.15.146.0/23AS18361ASX Operations Pty LtdAustraliaNot found172026-10-02
203.15.146.0/24AS18361ASX Operations Pty LtdAustraliaNot found172026-10-02
203.15.147.0/24AS18361ASX Operations Pty LtdAustraliaNot found172026-10-02
203.15.150.0/24AS134094Serverfield Co., Ltd.TaiwanValid172026-10-02
203.15.155.0/24AS400371PUEBLO OF LAGUNA UTILITY AUTHORITYUnited StatesNot found172026-10-02
203.15.160.0/21AS703Verizon BusinessAustraliaNot found172026-10-02
203.15.168.0/24AS9650QLD Government Business (IT)AustraliaNot found172026-10-02
203.15.169.0/24AS9650QLD Government Business (IT)AustraliaNot found172026-10-02
203.15.172.0/23AS397468Think On, Inc.AustraliaValid172026-10-02
203.15.226.0/24AS4822National Library of AustraliaAustraliaNot found192026-10-02
203.15.242.0/24AS4739Internode Pty LtdAustraliaNot found12026-10-02
203.15.244.0/24AS38170AAPT LimitedAustraliaNot found172026-10-02
203.15.254.0/24AS1221Telstra LimitedAustraliaNot found172026-10-02

Every /24 inside it

203.15.0.0/24ChinaAS133774Fuzhou7256100.00%
203.15.1.0/24ChinaAS133774Fuzhou2256100.00%
203.15.2.0/24ChinaAS133774Fuzhou12256100.00%
203.15.3.0/24ChinaAS133774Fuzhou12256100.00%
203.15.4.0/24ChinaAS133774Fuzhou24256100.00%
203.15.5.0/24ChinaAS133774Fuzhou22256100.00%
203.15.6.0/24ChinaAS133774Fuzhou28256100.00%
203.15.7.0/24ChinaAS133774Fuzhou26256100.00%
203.15.8.0/24ChinaAS133774Fuzhou5256100.00%
203.15.9.0/24ChinaAS133774Fuzhou12256100.00%
203.15.10.0/24ChinaAS133774Fuzhou10256100.00%
203.15.11.0/24ChinaAS133774Fuzhou8256100.00%
203.15.12.0/24ChinaAS133774Fuzhou8256100.00%
203.15.13.0/24ChinaAS133774Fuzhou10256100.00%
203.15.14.0/24ChinaAS133774Fuzhou8256100.00%
203.15.15.0/24ChinaAS133774Fuzhou3256100.00%
203.15.16.0/24IndiaAS134320Heritage Computers Pvt. Ltd.000.00%
203.15.17.0/24IndiaAS134320Heritage Computers Pvt. Ltd.000.00%
203.15.18.0/24IndiaAS151626INDIAN CYBERCRIME COORDINATION CENTRE000.00%
203.15.19.0/24IndiaAS151626INDIAN CYBERCRIME COORDINATION CENTRE000.00%
203.15.20.0/24China—000.00%
203.15.21.0/24China—000.00%
203.15.22.0/24China—000.00%
203.15.23.0/24Australia—000.00%
203.15.24.0/24Australia—000.00%
203.15.25.0/24Australia—000.00%
203.15.26.0/24Australia—000.00%
203.15.27.0/24Australia—000.00%
203.15.28.0/24Australia—000.00%
203.15.29.0/24Australia—000.00%
203.15.30.0/24Australia—000.00%
203.15.31.0/24Australia—000.00%
203.15.32.0/24AustraliaAS24436University of Queensland100.39%
203.15.33.0/24AustraliaAS24436University of Queensland000.00%
203.15.34.0/24AustraliaAS24436University of Queensland000.00%
203.15.35.0/24AustraliaAS24436University of Queensland000.00%
203.15.36.0/24AustraliaAS24436University of Queensland000.00%
203.15.37.0/24AustraliaAS24436University of Queensland000.00%
203.15.38.0/24AustraliaAS24436University of Queensland000.00%
203.15.39.0/24AustraliaAS24436University of Queensland000.00%
203.15.40.0/24AustraliaAS24436University of Queensland000.00%
203.15.41.0/24AustraliaAS24436University of Queensland000.00%
203.15.42.0/24AustraliaAS24436University of Queensland000.00%
203.15.43.0/24AustraliaAS24436University of Queensland301.17%
203.15.44.0/24AustraliaAS24436University of Queensland000.00%
203.15.45.0/24AustraliaAS24436University of Queensland000.00%
203.15.46.0/24AustraliaAS24436University of Queensland000.00%
203.15.47.0/24AustraliaAS24436University of Queensland000.00%
203.15.48.0/24AustraliaAS24436University of Queensland000.00%
203.15.49.0/24AustraliaAS24436University of Queensland000.00%
203.15.50.0/24AustraliaAS24436University of Queensland000.00%
203.15.51.0/24AustraliaAS24436University of Queensland100.39%
203.15.52.0/24AustraliaAS24436University of Queensland000.00%
203.15.53.0/24AustraliaAS24436University of Queensland000.00%
203.15.54.0/24AustraliaAS24436University of Queensland000.00%
203.15.55.0/24AustraliaAS24436University of Queensland000.00%
203.15.56.0/24AustraliaAS24436University of Queensland100.39%
203.15.57.0/24AustraliaAS24436University of Queensland000.00%
203.15.58.0/24AustraliaAS24436University of Queensland000.00%
203.15.59.0/24AustraliaAS24436University of Queensland000.00%
203.15.60.0/24AustraliaAS24436University of Queensland301.17%
203.15.61.0/24AustraliaAS24436University of Queensland000.00%
203.15.62.0/24AustraliaAS24436University of Queensland000.00%
203.15.63.0/24AustraliaAS24436University of Queensland000.00%
203.15.64.0/24AustraliaAS18165ResMed Dual Internet Gateway200.78%
203.15.65.0/24AustraliaAS13335Cloudflare, Inc.0256100.00%
203.15.66.0/24Australia—000.00%
203.15.67.0/24Australia—000.00%
203.15.68.0/24AustraliaAS1221Telstra Limited000.00%
203.15.69.0/24Australia—000.00%
203.15.70.0/24AustraliaAS4826Vocus Connect International Backbone000.00%
203.15.71.0/24Australia—000.00%
203.15.72.0/24Australia—000.00%
203.15.73.0/24Australia—000.00%
203.15.74.0/24Australia—000.00%
203.15.75.0/24Australia—000.00%
203.15.76.0/24Australia—000.00%
203.15.77.0/24Australia—000.00%
203.15.78.0/24Australia—000.00%
203.15.79.0/24Australia—000.00%
203.15.80.0/24Australia—000.00%
203.15.81.0/24Australia—000.00%
203.15.82.0/24Australia—000.00%
203.15.83.0/24Australia—000.00%
203.15.84.0/24Australia—000.00%
203.15.85.0/24Australia—000.00%
203.15.86.0/24Australia—000.00%
203.15.87.0/24China—000.00%
203.15.88.0/24China—000.00%
203.15.89.0/24China—000.00%
203.15.90.0/24Australia—000.00%
203.15.91.0/24Australia—000.00%
203.15.92.0/24Australia—000.00%
203.15.93.0/24Australia—000.00%
203.15.94.0/24Australia—000.00%
203.15.95.0/24Australia—000.00%
203.15.96.0/24AustraliaAS7550ASN for SBS000.00%
203.15.97.0/24AustraliaAS7550ASN for SBS000.00%
203.15.98.0/24AustraliaAS7550ASN for SBS000.00%
203.15.99.0/24AustraliaAS7550ASN for SBS000.00%
203.15.100.0/24AustraliaAS7550ASN for SBS000.00%
203.15.101.0/24AustraliaAS7550ASN for SBS000.00%
203.15.102.0/24AustraliaAS7550ASN for SBS000.00%
203.15.103.0/24AustraliaAS7550ASN for SBS000.00%
203.15.104.0/24Australia—000.00%
203.15.105.0/24China—000.00%
203.15.106.0/24Australia—000.00%
203.15.107.0/24AustraliaAS154625Hans Muller000.00%
203.15.108.0/24Australia—000.00%
203.15.109.0/24AustraliaAS7575Australian Academic and Research Network (AARNet)100.39%
203.15.110.0/24Australia—000.00%
203.15.111.0/24United StatesAS7545TPG Telecom Limited000.00%
203.15.112.0/24China—000.00%
203.15.113.0/24ChinaAS23764CTGNet000.00%
203.15.114.0/24Hong KongAS4809China Telecom Next Generation Carrier Network000.00%
203.15.115.0/24China—000.00%
203.15.116.0/24ChinaAS23764CTGNet000.00%
203.15.117.0/24SingaporeAS23764CTGNet000.00%
203.15.118.0/24SingaporeAS23764CTGNet000.00%
203.15.119.0/24China—000.00%
203.15.120.0/24United StatesAS137409GSL Networks Pty LTD0256100.00%
203.15.121.0/24United StatesAS137409GSL Networks Pty LTD0256100.00%
203.15.122.0/24AustraliaAS24433Central Queensland University000.00%
203.15.123.0/24Australia—000.00%
203.15.124.0/24AustraliaAS9650QLD Government Business (IT)000.00%
203.15.125.0/24AustraliaAS9650QLD Government Business (IT)000.00%
203.15.126.0/24AustraliaAS9650QLD Government Business (IT)000.00%
203.15.127.0/24AustraliaAS9650QLD Government Business (IT)000.00%
203.15.128.0/24Australia—000.00%
203.15.129.0/24Australia—000.00%
203.15.130.0/24China—000.00%
203.15.131.0/24China—000.00%
203.15.132.0/24Australia—000.00%
203.15.133.0/24Australia—000.00%
203.15.134.0/24AustraliaAS9313Network Technology (AUST) P/L000.00%
203.15.135.0/24AustraliaAS9313Network Technology (AUST) P/L000.00%
203.15.136.0/24Australia—000.00%
203.15.137.0/24Australia—000.00%
203.15.138.0/24Australia—000.00%
203.15.139.0/24Australia—000.00%
203.15.140.0/24Australia—000.00%
203.15.141.0/24AustraliaAS139207Serverworld000.00%
203.15.142.0/24AustraliaAS139890TRANSACTION SOLUTIONS LIMITED000.00%
203.15.143.0/24Australia—000.00%
203.15.144.0/24AustraliaAS18361ASX Operations Pty Ltd000.00%
203.15.145.0/24AustraliaAS18361ASX Operations Pty Ltd000.00%
203.15.146.0/24AustraliaAS18361ASX Operations Pty Ltd000.00%
203.15.147.0/24AustraliaAS18361ASX Operations Pty Ltd000.00%
203.15.148.0/24Australia—000.00%
203.15.149.0/24China—000.00%
203.15.150.0/24TaiwanAS134094Serverfield Co., Ltd.0256100.00%
203.15.151.0/24China—000.00%
203.15.152.0/24Australia—000.00%
203.15.153.0/24Australia—000.00%
203.15.154.0/24Australia—000.00%
203.15.155.0/24United StatesAS400371PUEBLO OF LAGUNA UTILITY AUTHORITY301.17%
203.15.156.0/24China—000.00%
203.15.157.0/24China—000.00%
203.15.158.0/24China—000.00%
203.15.159.0/24China—000.00%
203.15.160.0/24AustraliaAS703Verizon Business000.00%
203.15.161.0/24AustraliaAS703Verizon Business000.00%
203.15.162.0/24AustraliaAS703Verizon Business000.00%
203.15.163.0/24AustraliaAS703Verizon Business000.00%
203.15.164.0/24AustraliaAS703Verizon Business000.00%
203.15.165.0/24AustraliaAS703Verizon Business000.00%
203.15.166.0/24AustraliaAS703Verizon Business000.00%
203.15.167.0/24AustraliaAS703Verizon Business000.00%
203.15.168.0/24AustraliaAS9650QLD Government Business (IT)000.00%
203.15.169.0/24AustraliaAS9650QLD Government Business (IT)000.00%
203.15.170.0/24Australia—000.00%
203.15.171.0/24Australia—000.00%
203.15.172.0/24AustraliaAS397468Think On, Inc.1505.86%
203.15.173.0/24AustraliaAS397468Think On, Inc.100.39%
203.15.174.0/24China—000.00%
203.15.175.0/24Australia—000.00%
203.15.176.0/24Australia—000.00%
203.15.177.0/24Australia—000.00%
203.15.178.0/24Australia—000.00%
203.15.179.0/24Australia—000.00%
203.15.180.0/24Australia—000.00%
203.15.181.0/24Australia—000.00%
203.15.182.0/24Australia—000.00%
203.15.183.0/24Australia—000.00%
203.15.184.0/24Australia—000.00%
203.15.185.0/24Australia—000.00%
203.15.186.0/24Australia—000.00%
203.15.187.0/24Australia—000.00%
203.15.188.0/24Australia—000.00%
203.15.189.0/24Australia—000.00%
203.15.190.0/24Australia—000.00%
203.15.191.0/24Australia—000.00%
203.15.192.0/24Australia—000.00%
203.15.193.0/24Australia—000.00%
203.15.194.0/24Australia—000.00%
203.15.195.0/24Australia—000.00%
203.15.196.0/24Australia—000.00%
203.15.197.0/24Australia—000.00%
203.15.198.0/24Australia—000.00%
203.15.199.0/24Australia—000.00%
203.15.200.0/24Australia—000.00%
203.15.201.0/24Australia—000.00%
203.15.202.0/24Australia—000.00%
203.15.203.0/24Australia—000.00%
203.15.204.0/24Australia—000.00%
203.15.205.0/24Australia—000.00%
203.15.206.0/24Australia—000.00%
203.15.207.0/24Australia—000.00%
203.15.208.0/24Australia—000.00%
203.15.209.0/24Australia—000.00%
203.15.210.0/24Australia—000.00%
203.15.211.0/24Australia—000.00%
203.15.212.0/24Australia—000.00%
203.15.213.0/24Australia—000.00%
203.15.214.0/24Australia—000.00%
203.15.215.0/24Australia—000.00%
203.15.216.0/24Australia—000.00%
203.15.217.0/24Australia—000.00%
203.15.218.0/24Australia—000.00%
203.15.219.0/24Australia—000.00%
203.15.220.0/24Australia—000.00%
203.15.221.0/24Australia—000.00%
203.15.222.0/24Australia—000.00%
203.15.223.0/24Australia—000.00%
203.15.224.0/24Australia—000.00%
203.15.225.0/24Australia—000.00%
203.15.226.0/24AustraliaAS4822National Library of Australia000.00%
203.15.227.0/24China—000.00%
203.15.228.0/24Australia—000.00%
203.15.229.0/24Australia—000.00%
203.15.230.0/24Australia—000.00%
203.15.231.0/24Australia—000.00%
203.15.232.0/24China—000.00%
203.15.233.0/24China—000.00%
203.15.234.0/24China—000.00%
203.15.235.0/24China—000.00%
203.15.236.0/24China—000.00%
203.15.237.0/24China—000.00%
203.15.238.0/24China—000.00%
203.15.239.0/24China—000.00%
203.15.240.0/24China—000.00%
203.15.241.0/24China—000.00%
203.15.242.0/24AustraliaAS4739Internode Pty Ltd000.00%
203.15.243.0/24Australia—000.00%
203.15.244.0/24AustraliaAS38170AAPT Limited000.00%
203.15.245.0/24Australia—000.00%
203.15.246.0/24China—000.00%
203.15.247.0/24Australia—000.00%
203.15.248.0/24Australia—000.00%
203.15.249.0/24Canada—000.00%
203.15.250.0/24Australia—000.00%
203.15.251.0/24Australia—000.00%
203.15.252.0/24Australia—000.00%
203.15.253.0/24Australia—000.00%
203.15.254.0/24AustraliaAS1221Telstra Limited0256100.00%
203.15.255.0/24Australia—000.00%
00 · Evaluate

Test the real build first.

An evaluation license puts a full current build in your hands, with no sampling, so you can measure it against your own traffic before anyone talks about terms.

01 · License

Then license what you use.

Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell, priced by scope rather than by seat.
Annual terms, a named contact, and monthly, quarterly or yearly payment.