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

AS21525, Seattle Public Library

Last update of data:
01-04-2024 11:05 UTC

ASN:

AS21525 (AS-SPL)

Country:

US - United States (North America)

Org.:

Seattle Public Library
https://www.spl.org
Social media: @facebook @twitter/X @instagram @linkedin @linkedin

Stats:

Peers

16

IX'es

1

Prefixes

2

IPv4

4.096

IPv6

1,2E+24

Contact:

Seattle Public Library
1000 4th Avenue
98104-1109
Seattle
US

+1-206-386-4170

Network Operations
netops@spl.org
+1-206-386-4170

History

Date

Peers

IX'es

Prefixes

IPv4

IPv6

Before 08-01-2024

15

1

2

4.096

1,2E+24

08-01-2024

-1

-

-

-

-

04-03-2024

+1

-

-

-

-

01-04-2024

+1

-

-

-

-

Current

16

1

2

4.096

1,2E+24

Peers

Country

Relationship

ASN

Organization

Peers

Prefix'es

Australia

Upstream

Australian Academic and Research Network

1.231

149

Britain (UK)

Upstream

ParadoxNetworks Limited

392

48

Britain (UK)

Peer

3.248

37

Canada

Upstream

Tech Futures Interactive Inc.

20

23

Canada

Peer

TELUS Communications Inc.

488

565

France

Upstream

F5 Networks SARL

5.648

35

Netherlands

Peer

6.668

134

New Zealand

Upstream

Mercury NZ Limited

720

22

Singapore

Upstream

8.400

17

Singapore

Peer

Viewqwest Pte Ltd

2.142

29

United States

Upstream

NTT America, Inc.

1.539

343

United States

Upstream

Hurricane Electric LLC

10.675

262

United States

Peer

Black Mesa Corporation

476

21

United States

Peer

Unitas Global LLC

5.688

251

United States

Peer

NetActuate, Inc

7.474

206

Peer

August Internet

1.261

74

Internet eXchange (IX) connections

Country

City

IX name

Port speed

Members

United States

Seattle

10 Gb

371

Announced (uniq) prefixes

Country

ASN

Announced prefix

Description

Size

United States

Seattle Public Library

4.096

Country

ASN

Announced prefix

Description

Size

United States

Seattle Public Library

1,2E+24

Log

000	+000	Parse input (ASN)
000	+000	Search database for 'AS21525'
013	+013	1 ASN's found
014	+000	Done
014	+000	Load details of AS21525
024	+010	2 prefixes found
043	+019	16 peers found
047	+004	1 IX members found (1 connections)
053	+006	13 links loaded, 6 verified
062	+009	4 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.