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A phone number for selling on Facebook Marketplace

Sell the couch, keep your number.

Give buyers a number you can drop after pickup. Mute it when you want, retire it when you're done. Your real number never leaves the house, whether you're listing on Facebook Marketplace, Craigslist, OfferUp or eBay.

Get the app → See how it works

Real US or Canadian number Unlimited calls & texts No SIM card No ads

Side line · Incoming

Marketplace buyer

+1 (415) 555·0188

Why sellers use a side line

Every listing hands your number to strangers.

A listing lives on long after the sale. Put a side number on it and the buyers, the no-shows and the 3 a.m. "is this still available?" texts all land somewhere you can switch off.

Keep your real number off the listing

Listings get screenshotted, shared and saved. Post the side number instead and your personal line never ends up in a stranger's contacts.

Trade photos and confirm pickup

Buyers call or text from any phone, no app on their side. Send photos of the item, haggle on price and agree on a pickup time, all on the side line.

Shut out the lowballers

A buyer got pushy after the sale? Retire the number. Sold the thing and don't want twenty more messages about it? Mute the line.

Retire it after the garage sale

Clearing out the house for one weekend? Use a number for the sale, then retire it and pick a fresh one when you list again.

How it works

List it, sell it, drop it.

Set up a selling number in about a minute and keep every buyer conversation in one place, away from your personal texts.

Step 01

Pick a local number

Choose an area code near you so buyers see a local number. No SIM, no signup verification.

Step 02

Put it on the listing

Paste it into your Marketplace, Craigslist or OfferUp listing. Calls and texts land in SideNumber, not your personal inbox.

Step 03

Drop it after pickup

Mute the line, or retire the number once the item's gone.

FAQ

Selling with a side number, answered.

Can I use SideNumber for Facebook Marketplace?

Yes. It's a real ten-digit US or Canadian number, so you can share it with buyers anywhere you'd share a phone number: in the listing, in a chat, or at pickup.

Is a second number safer for selling on Craigslist?

It keeps your personal number out of Craigslist listings, where anyone can copy it and look you up. Use the side number as your Craigslist safety number, then mute it or retire it after the sale. It isn't a substitute for the basics: meet in a public place, and bring a friend for big-ticket items.

Will buyers know it's a second number?

It works like any other phone number. Buyers call and text it from their own phone, with no app required on their side.

Can I send and receive photos of the item?

Yes. Messaging is unlimited and includes photos, so buyers can ask for a closer look and you can send it from the side line.

Can I keep a separate number for each platform?

Yes. The 3-number plan is $24.99/mo, so you can run one number for Marketplace, one for eBay and one for garage sales. Each has its own messages and voicemail.

Do I need Wi-Fi when I meet a buyer?

No. SideNumber works over cellular data too, so you can take the buyer's "I'm outside" call from the curb. Standard carrier data rates apply when you're off Wi-Fi.

Get the app

The number on the listing,
not the one you keep.

Available on iOS and Android. No ads, no SIM card, no signup verification. About a minute from open to first ring.

Standard carrier data rates apply when not on Wi-Fi.

A phone number for selling on Facebook Marketplace