ASN database

You may find these sub-pages interesting as well:

Related tools

DNS lookup / nslookup / DIG of DNS records. An online tool for DNS lookups. By default recursive lookups querying the authoritative name servers. Lookups on specific DNS resolvers are also possible. Additionally, it will look up secondary records and output a full log of what was done on a technical level.

WHOIS / RDAP lookup

Perform WHOIS and/or RDAP lookups on domains, IP addresses, and ASNs. Will output all available technical info, contact info, etc.

Perform reverse DNS (rDNS/PTR) lookups of any IP.

CIDR calculator

IP to CIDR calculation tool with subnet info. The reverse, CIDR ranges to IP addresses, is also possible. Last but not least, it includes a tool for refactoring groups of IPs, domain names, and/or other CIDR ranges.

What is my IPv4 and IPv6?

Check your own IP - both IPv4 and IPv6. Works as a connectivity test as well.

Online tool GeoIP location of any IP and/or domain.

World map, day/night + local time

Beautiful day/night map of the world, with markup of all major cities including local date and time.

Result

AS206747, UK Ministry of Defence

Last update of data:
06-04-2024 15:33 UTC

ASN:

AS206747 (NCSC)

Country:

GB - Britain (UK) (Europe)

Org.:

UK Ministry of Defence

Stats:

Peers

5

IX'es

-

Prefixes

18

IPv4

2.816

IPv6

1,3E+25

Contact:

UK Ministry of Defence
Whitehall
SW1A 2HB
London
UNITED KINGDOM
GB

+44(0)3001512351

Peers

Country

Relationship

ASN

Organization

Peers

Prefix'es

Sweden

Upstream

Arelion Sweden AB

2.462

95

United States

Upstream

GTT Communications Inc.

1.608

-

United States

Upstream

Cogent Communications

6.790

1.449

United States

Upstream

NTT America, Inc.

1.539

343

United States

Upstream

GTT Communications Inc.

2.711

869

Announced (uniq) prefixes

Country

ASN

Announced prefix

Description

Size

Britain (UK)

NCSC

256

Britain (UK)

NCSC

256

Britain (UK)

25.129.196.0/23

UK Ministry of Defence

512

Britain (UK)

25.129.198.0/23

UK Ministry of Defence

512

Britain (UK)

195.130.28.0/24

UK Ministry of Defence

256

Britain (UK)

195.130.29.0/24

UK Ministry of Defence

256

Britain (UK)

195.130.30.0/24

UK Ministry of Defence

256

Britain (UK)

195.130.31.0/24

UK Ministry of Defence

256

Britain (UK)

213.248.192.0/24

Nominet UK

256

Country

ASN

Announced prefix

Description

Size

Britain (UK)

UK Ministry of Defence

1,2E+24

Britain (UK)

2a08:600:1::/48

UK Ministry of Defence

1,2E+24

Britain (UK)

2a08:600:2::/48

UK Ministry of Defence

1,2E+24

Britain (UK)

2a08:600:3::/48

UK Ministry of Defence

1,2E+24

Britain (UK)

2a08:600:4::/48

UK Ministry of Defence

1,2E+24

Britain (UK)

2a08:600:99::/48

UK Ministry of Defence

1,2E+24

Britain (UK)

2a08:600:e0::/47

UK Ministry of Defence

2,4E+24

Britain (UK)

2a08:600:ee::/47

UK Ministry of Defence

2,4E+24

Britain (UK)

2a08:600:ff::/48

UK Ministry of Defence

1,2E+24

Log

000	+000	Parse input (ASN)
000	+000	Search database for 'AS206747'
002	+002	1 ASN's found
002	+000	Done
002	+000	Load details of AS206747
041	+039	18 prefixes found
055	+014	5 peers found
057	+002	No matching IX connections found!
062	+004	1 historical items loaded
062	+000	Done

Changelog

Newsletter

Bi-weekly (at most) with updates, changelog and info from the website. Just straight to the point info - no BS! Sign up right here, or read more about the iamroot.tech newsletter.

Signup using Google

Signup using Github

Other options: Signup using Microsoft or Signup using Facebook.

OR

No personal information gathered anywhere. E-mail may be used for login and/or newsletter - will not be sold or used by anyone else but iamroot.tech. Cookies are in use for statistical and useability purposes. Trademarks property of their respective owners. A privacy policy and terms and conditions is availible if you like.

iamrootdottech@gmail.com
Bundgaard - Løvenørnsgade 56, 2tv - DK-8700 Horsens - Denmark

Shoutouts and credits to: Bootstrap, jQuery, Bootstrap live customizer by Virtuosoft, DnsClient.NET by MichaCo, LazyLoad by Mika Tuupola, the Olson tz database by IANA, Visible earth by NASA, GeoLite2 by MaxMind, Barcoder by Wouter Huysentruit, ICONS8.
json-viewer by alenaksu.

iamrootdottech@gmail.com
Bundgaard - Løvenørnsgade 56, 2tv - DK-8700 Horsens - Denmark

No personal information gathered anywhere. E-mail may be used for login and/or newsletter - will not be sold or used by anyone else but iamroot.tech. Cookies are in use for statistical and useability purposes. Trademarks property of their respective owners. A privacy policy and terms and conditions is availible if you like.