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A CURRENT ONLINE ADDRESS BOOK

An online address book that keeps itself current.

Collect the mailing addresses you’re missing, import the ones you already have, and let friends and family keep their own address current when they move.

Create your free address bookSee how OnceAsk works
Addresses change.A good address book should tell you where someone can receive mail now, not where they lived years ago.

A free online address book for mailing addresses

Add the people you already know, see who is missing a mailing address, and ask them directly instead of hunting through old texts and spreadsheets.

  • Import existing contacts
  • See who is missing an address
  • Send simple address requests

Let people keep themselves current

Traditional address books save a snapshot. OnceAsk lets the person behind the address confirm it and keep it current when they move.

  • Recipient-confirmed information
  • Updates from the address owner
  • Less stale contact data

Use the same list again

Keep one useful mailing-address book for holiday cards, invitations, gifts, announcements, and the next time you need to send something.

  • Holiday cards
  • Weddings and invitations
  • Gifts and physical mail

HOW IT WORKS

Ask once. Keep the result useful.

1

Bring your people

Import contacts or add the people you already know instead of rebuilding another list from scratch.

2

Ask for the gaps

Request missing or outdated mailing addresses directly from the people who know them best.

3

Keep the relationship current

When someone moves, they can update their OnceAsk address so you are not starting over next time.

BUILT FOR PEOPLE + AI

Addresses should be live data, not a stale field in a contact card.

OnceAsk gives people one current address to maintain and gives compatible assistants a permissioned way to resolve or request the delivery information they need.

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QUESTIONS

What to know

Is OnceAsk a free online address book?

Yes. OnceAsk is free for consumers and is designed to organize mailing-address relationships, collect missing addresses, and keep them current over time.

How is OnceAsk different from a traditional address book?

A traditional address book stores the last address you entered. OnceAsk is designed so the person who owns the address can confirm and maintain their current mailing address instead of leaving you with a stale copy.

Can I import contacts I already have?

Yes. You can bring in existing contacts, then focus on the people whose mailing addresses are missing or need to be confirmed.

Can I export my addresses?

Yes. OnceAsk supports contact export so you can use your mailing list for cards, invitations, gifts, and other mailings.

What can I use a OnceAsk address book for?

Common uses include holiday cards, weddings, invitations, gifts, announcements, family mailing lists, and any recurring situation where current mailing addresses matter.

RELATED

More ways to use OnceAsk

Online address book guideA complete guide to collecting, organizing, exporting, and keeping mailing addresses current.How to make an address bookBuild a useful friends-and-family mailing list from the contacts you already have.Address book vs spreadsheetSee when a maintained address book is more useful than a static file.Postable alternativesCompare address-book and address-collection workflows.Collect mailing addressesGather missing addresses with a simple request flow.Family address bookKeep relatives and close friends organized around current mailing addresses.Self-updating address bookSee how recipient-maintained updates improve a traditional address book.Holiday-card addressesBuild this year’s list without rebuilding it next year.

Collect it once. Keep it current.

Build an address book that is still useful the next time you need it.

Create your OnceAsk