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Local 641 numbers

Get a 641 phone number for Mason City, Marshalltown and Ottumwa.

Ask for 641 when you create a number on ExpressNumber, and the number you hand out reads as Mason City, Marshalltown, Ottumwa and the towns around them. It rings the phone you already carry, and you burn it in one tap.

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This is how you get a 641 number.

  1. Start your 7 days free and open Create a number.
  2. Type 641 as the area code and give the number a name.
  3. Hand it out. Calls ring the phone you already carry, and texts land in your inbox.
  4. Burn it in one tap when you are done. Calls and texts to it stop at once.
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People ask for 641 when the search is in Mason City, Marshalltown or Ottumwa.

A room for rent near a campus in Grinnell or Pella draws calls from many strangers.

List it with a 641 number, take the calls on your own phone and burn the number once the lease is signed.

A used truck, a tractor or a boat for sale near Mason City or Clear Lake draws buyers all season.

Post a 641 number with the photos, set it to Texts only and keep your own number off the ad.

A wedding or a catering order in Marshalltown or Newton ends in follow-up calls.

Give each vendor its own 641 number. Block the ones you did not choose.

This is where a 641 number is from.

Area code 641 took the rest of the old 515 area after Des Moines and Ames kept 515, and the numbering administrator names Mason City, Pella and Ottumwa among the communities that moved to 641.

Its rate center lists add Marshalltown, Newton, Oskaloosa, Grinnell, Fairfield, Clear Lake, Knoxville, Creston and Charles City.

  • Marshalltown
  • Mason City
  • Ottumwa
  • Newton
  • Oskaloosa
  • Pella
  • Grinnell
  • Fairfield
  • Clear Lake
  • Knoxville
  • Creston
  • Charles City

These are the facts about area code 641.

From the public records of the body that runs US phone numbering, read October 21, 2026.

Place
Mason City, Marshalltown and Ottumwa, Iowa
In service since
2000
Local calls are dialed with
Seven digits
Shares its area with
No other code
Split from
515 (1947)

On February 24, 2000, the Iowa Utilities Board approved a geographic split of 515, and an order of March 30, 2000 set the dates. 641 entered service on July 9, 2000, and its use became mandatory on December 3, 2000.

A local call inside 641 is still dialed with seven digits, while a local call to another area code, including 515, takes ten.

Try it free for 7 days.

Then pick the plan that fits how many numbers you hand out.

Basic

7 days free

$9.99/mo

  • 5 numbers, one for each site, store or dealer
  • 100 forwarded minutes a month
  • Burn a number in one tap
  • Extra numbers $1 a month each
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Pro

7 days free

$29.99/mo

  • 100 numbers
  • 1,000 forwarded minutes a month
  • A number per vendor, client or listing
  • Extra numbers 50¢ a month each
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$0 today. Monthly plans, cancel any time.

People ask these questions about getting a 641 number.

More in the full FAQ.

Create a number in your dashboard, type 641 as the area code and give it a name, such as Room for rent. It is live in about a minute. You do not need to live in Iowa: calls ring the phone you already carry.

Yes, for taking calls and texts. A mover, a tutor or a baker in Marshalltown can put a 641 number on the flyer and the website, take the calls on their own phone and burn the number when the job is done.

Yes. The 641 area takes in Mason City, Marshalltown, Ottumwa, Newton and Oskaloosa. Des Moines and Ames use 515.

No. Your numbers are receive-only: they take calls and texts, and they never make them. You answer calls on your own phone, and you cannot reply to a text from the inbox.

You get 7 days free and pay $0 today. After 7 days your plan starts: $9.99 a month for Basic or $29.99 a month for Pro. Cancel before then and you pay nothing.

More area codes

Every fact on this page comes from public numbering records.

The state, the dates and the related codes are rows of the North American Numbering Plan Administrator's area code database. The places are from its planning letters and the state’s own pages. Read October 21, 2026.

Put 641 on a number you can burn.

Hand out a number you can burn. Keep the one your family calls.

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