From the Inner Loop to Sugar Land, Houston runs on five area codes. Pick a Houston number and Allo gives it an AI receptionist, smart routing and AI call summaries that sync to your CRM.
713 is the original Inner Loop code, 281 covers the outer suburbs such as Sugar Land and Pasadena, and 832, 346 and 621 are overlays across the wider Houston metro.
Areas are approximate. Codes that overlay each other share the same area.
Get (713) XXX-XXXX when you join Allo
Allo answers, routes and writes up every call on it, from day one.
You pick your exact number from the ones available when you sign up.
Houston is big, busy and built on relationships.
Energy firms downtown, medical practices near the Texas Medical Center and contractors out in Katy all expect a quick answer from someone local. A Houston number puts you on their list of calls worth taking. It also makes it easier to hire, sell and follow up across a metro that stretches in every direction.
Houston's codes tell callers roughly where you are.
713 is tied to the Inner Loop and still carries a downtown feel. 281 serves the outer suburbs, including Sugar Land and Pasadena. 832, 346 and the newest code, 621, overlay the metro and suburbs, so they read as Houston wherever your customers live, and new numbers are usually issued on these newer codes.
Allo makes sure a missed call does not become a lost job.
The AI receptionist answers 24/7, takes the details and hands them to your team. Calls ring whoever is available, recordings and AI summaries are saved automatically, and contacts sync to your CRM. Your crew can text customers from the same number on the mobile app.
The number gets you picked up. Allo handles everything after that.
A local area code your prospects recognize means more calls get answered and more callbacks come through.
The AI receptionist picks up when your team can't, answers questions, qualifies the lead and books the meeting.
Ring your team together or one after another, with business texting built in, so no call slips through.
Recording, summary and next steps land in your CRM automatically, so follow-up is done before you hang up.
Tell us the number you have in mind. If it is available, we will set it aside for you. If it is already yours, we will move it to Allo for you.
Ask for a number713 covers the Inner Loop, 281 covers the outer suburbs including Sugar Land and Pasadena, and 832, 346 and 621 are overlays for the Houston metro and suburbs. Houston is on Central Time.
You pick from the Houston numbers available when you sign up. If you have your heart set on a code like 713, ask the Allo team and they will look for a specific number.
No. A Houston number on Allo does not require a Houston office. You can run it from the desktop and mobile apps anywhere.
621 is Houston's newest area code, added in 2025 as an overlay for the Houston metro and suburbs. It serves the same area as 832 and 346.
