ASN database

You may find these sub-pages interesting as well:

Related tools

Online tool for advanced DNS lookups (nslookup / DIG-style). By default, it performs recursive queries against authoritative name servers - but custom DNS resolvers are supported too. Includes secondary records for a complete overview and provides a full technical log for debugging and insight.

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 rDNS lookups on IPv4 or IPv6 addresses. Check PTR records to see the hostname behind 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 IPv4 and IPv6 address and analyze your network setup. Includes ISP/ASN lookup, DNS resolver detection, browser and device information, and connectivity diagnostics in a shareable report.

GeoIP lookup tool. Supports lookup of ip's in bulk - and lookups based on domainnames. Includes ASN/ISP data. Based upon the MaxMind database.

World map, day/night + local time

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

Ping / traceroute

Ping tool for testing connectivity to a host, measuring response times, jitter, and packet loss. Global ping works like regular ping - but from multiple sources worldwide, simultaneously. Traceroute maps the full path data takes, showing each hop’s response time, ASN, and geo-info to diagnose network issues.

AS4138, FAL Networks

ASN:

Last update 7 hours ago
at 2026-11-11 17:13 UTC
Corrections?

AS4138 (FN-205-4138)

Country:

US - United States (North America)

Type:

Network infrastructure provider

Org.:

FAL Networks

Stats:

Peers

1

IX'es

-

Prefixes

12

Sub
prefixes

2

IPv4

256

IPv6

4.5^28

Contact:

FAL Networks
6260 Hunting Country Rd.
28782
Tryon
US

+1-888-370-7026

FAL NETWORKS TECH
TECH@Fal-networks.com
+1-888-370-7026

History

Date

Peers

IX'es

Prefixes

Sub prefixes

IPv4

IPv6

2026-10-21

+1

-

-

-

-

-

2026-10-21

+2

-

-

-

-

-

2026-10-30

-1

-

-

-

-

-

2026-11-03

-1

-

-

-

-

-

2026-11-10

-1

-

-

-

-

-

Current

1

-

12

2

256

4.5^28

- - show more (+13 entries) - -

Peers

Country

Relationship

ASN

Organization

Peers

Prefixes

United States

Upstream

H4Y Technologies LLC

19

200

United States

Upstream

Core Transit LLC

21

24

Announced prefixes

Country

ASN

Announced prefix

Description

Count

United States

23.129.192.0/24

FAL Networks

256

Country

ASN

Announced prefix

Description

Count

United States

FAL Networks

5.0^27

United States

• 2604:55c0:1::/48

FAL Networks

* 1.2^24

United States

• 2604:55c0:100::/48

FAL Networks

* 1.2^24

United States

2604:55c0:8000::/36

FAL Networks

5.0^27

United States

2604:55c0:9000::/36

FAL Networks

5.0^27

United States

2604:55c0:a000::/36

FAL Networks

5.0^27

United States

2604:55c0:b000::/36

FAL Networks

5.0^27

United States

2604:55c0:c000::/36

FAL Networks

5.0^27

United States

2604:55c0:d000::/36

FAL Networks

5.0^27

United States

2604:55c0:e000::/36

FAL Networks

5.0^27

United States

2604:55c0:f000::/36

FAL Networks

5.0^27

Log

000	+000	Parse input (ASN)
000	+000	Search database for 'AS4138'
006	+006	1 ASN's found
006	+000	Done
006	+000	Load details of AS4138
011	+005	Last update of ASN: 2026-11-11 17:13 UTC
041	+030	12 prefixes found
047	+006	2 peers found
050	+003	No matching IX connections found!
166	+116	18 historical items loaded
169	+003	1 associated ASN's found
169	+000	Done

About

iamroot.tech is a toolbox for sysadmins, developers, and fellow nerds. It’s a personal pet project, coded and maintained alongside my day job as a full-stack developer and systems admin.

Everything is free, with no ads, signups, or credit cards required. The only exception is the monitoring platform, which needs a free account.

Feedback is always appreciated at iamrootdottech@gmail.com - otherwise, sign up for the newsletter, consider a donation, or read more on the About page.

Changelog

Newsletter

Bi-weekly (at most) with updates, changelog and info from the website. Subscribe right here, or read more about the iamroot.tech newsletter.

Subscribe using Google

Subscribe using Microsoft

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 usability purposes. Trademarks property of their respective owners. A privacy policy and terms and conditions is availible if you like.

iamrootdottech@gmail.com
Bundgaard - Løvenørnsgade 35 - 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, twelve.tools .

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 usability purposes. Trademarks property of their respective owners. A privacy policy and terms and conditions is availible if you like.

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, twelve.tools .

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 usability purposes. Trademarks property of their respective owners. A privacy policy and terms and conditions is availible if you like.

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