Insights

Market Growth Addrex operates a 24/7 IPv4 asset marketplace with a growing network of over 300 vetted buyers, indicating a robust, ongoing demand for IPv4 blocks and potential for expanded buyer onboarding and higher transaction volumes.

Strategic Position As a neutral broker with double-blind transactions and escrow protections, Addrex can differentiate in the IPv4 market by expanding partnerships with large buyers and sellers seeking secure, high-trust deals, driving premium pricing opportunities.

Revenue Levers With current revenue in the low to mid six-figure range and a funded operations base, there is room to grow through premium marketplace services, enhanced onboarding for corporate clients, and targeted enterprise sales to ISPs and cloud providers expanding IPv4 holdings.

Tech Enablement The tech stack and digital marketplace approach support scalable onboarding and transaction efficiencies; selling this efficiency to potential enterprise customers could yield faster deal cycles and higher conversion rates.

Competitive Edge Highlight the historic first legal sale of IPv4 blocks and the long-standing track record to attract buyers seeking provenance and compliance, while exploring outbound outreach to similar peers in the adjacent secondary IP assets market.

Addrex, Inc. Tech Stack

Addrex, Inc. uses 8 technology products and services including Cloudflare CDN, MySQL, Apple iCloud Mail, and more. Explore Addrex, Inc.'s tech stack below.

Cloudflare CDN

Content Delivery Network

MySQL

Database

Apple iCloud Mail

Modernizr

Javascript Libraries

Really Simple Discovery

Miscellaneous

PHP

Programming Languages

Yoast SEO

Search Engines

Ruby on Rails

Web Frameworks

Addrex, Inc. Email Formats	Example	Percentage
First.Last@addrex.net	John.Doe@addrex.net	79%
First@addrex.net	John@addrex.net	11%
Last@addrex.net	Doe@addrex.net	7%
LastF@addrex.net	DoeJ@addrex.net	3%

Addrex, Inc. Email Formats

Example

Percentage

First.Last@addrex.net

John.Doe@addrex.net

79%

First@addrex.net

John@addrex.net

11%

Last@addrex.net

Doe@addrex.net

LastF@addrex.net

DoeJ@addrex.net

Frequently Asked Questions

What is Addrex, Inc.'s phone number?

You can contact Addrex, Inc.'s main corporate office by phone at

+1-703-436-****

. For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Addrex, Inc.'s official website and social media links?

Addrex, Inc.'s official website is addrex.net and has social profiles on LinkedIn Crunchbase.

What is Addrex, Inc.'s SIC code NAICS code?

Addrex, Inc.'s SIC code is 7378 - Computer Maintenance and Repair NAICS code is 5415 - Computer Systems Design and Related Services.

How many employees does Addrex, Inc. have currently?

As of July 2026, Addrex, Inc. has approximately 8 employees across 1 continents, including North America. Key team members include Vice President, Data Intelligence: S. V.Technical Lead: E. K.Principal: J. K.. Explore Addrex, Inc.'s employee directory with LeadIQ.

What industry does Addrex, Inc. belong to?

Addrex, Inc. operates in the Technology, Information and Internet industry.

What technology does Addrex, Inc. use?

Addrex, Inc.'s tech stack includes Cloudflare CDNMySQLApple iCloud MailModernizrReally Simple DiscoveryPHPYoast SEORuby on Rails.

What is Addrex, Inc.'s email format?

Addrex, Inc.'s email format typically follows the pattern of First.Last@addrex.net. Find more Addrex, Inc. email formats with LeadIQ.

How much funding has Addrex, Inc. raised to date?

As of July 2026, Addrex, Inc. has raised $3.3M in funding. The last funding round occurred on Nov 01, 2011 for $3.3M.

When was Addrex, Inc. founded?

Addrex, Inc. was founded in 2009.

Addrex, Inc.

Q: What is Addrex, Inc.'s official website and social media links?

Addrex, Inc.'s official website is addrex.net. Addrex, Inc. has social profiles on LinkedIn.

Q: How many employees does Addrex, Inc. have currently?

Addrex, Inc. has approximately 8 employees.

Q: What technology does Addrex, Inc. use?

Addrex, Inc.'s tech stack includes HeadJS, Ruby on Rails, Contact Form 7, X-Content-Type-Options, Apple iCloud Mail.

Q: What is Addrex, Inc.'s NAICS code?

Addrex, Inc.'s NAICS code is 5415 (Computer Systems Design and Related Services).

Technology, Information and InternetVirginia, United States2-10 Employees

Addrex, Inc. operates in the technology, information, and internet sector with a focus on the secondary market for IPv4 number assets. The company positions itself as a neutral facilitator in a double-blind marketplace that connects qualified sellers with a broad base of vetted buyers, leveraging standardized legal agreements and escrow services to support secure transactions. Its primary offering, the Addrex Marketplace, enables around-the-clock online trading of IPv4 blocks, aiming to provide a safe and efficient channel for participants to complete transfers.

Headquartered in Herndon, Virginia, Addrex was founded in 2009 to foster this niche market and has its origins tied to brokering the first legal sale of IPv4 number blocks in a 2011 Microsoft–Nortel deal. The marketplace serves organizations seeking IPv4 assets and those looking to sell, with a focus on protecting buyer and seller identities through the closing process. The company operates within the broader technology, information, and internet industry and maintains a global reach through its online platform.

Insights

Similar companies to Addrex, Inc.

Bidpath

Bidsquare

Invaluable

LiveAuctioneers

IronPlanet

Public Surplus

Auction Mobility

GovDeals

Proxibid