Facts checked: 9 November 2026.

Short answer: 1955 Broadway, Suite 600, Oakland, CA 94612 is the official office address of Block, Inc., the payments company behind Cash App, Square and Afterpay. Block lists it as its principal executive office in its SEC filings, and Cash App uses the same address for customer-support mail. If it appears on your bank or card statement, the transaction almost certainly went through a Block product, most often Cash App.

The rest of this guide explains why an address shows up instead of a company name, the most common causes, how to confirm the charge in a few minutes, and what to do if you still don’t recognise it.

Quick facts

Who is at 1955 Broadway, Suite 600?

The building is known as Uptown Station, an eight-storey office building beside the 19th Street BART station in downtown Oakland. Block uses Suite 600 as its official corporate address. The same address appears in Cash App’s cardholder agreements, its app-store listing and US government correspondence with Cash App. In 2023, for example, members of the US Senate Banking Committee addressed a letter about scams on the platform to Cash App’s CEO at this address.

Block was founded as Square in 2009 by Jack Dorsey and Jim McKelvey. It renamed itself Block in 2021 to cover a wider group of businesses:

• Square: card readers, point-of-sale software and payment processing for small and mid-sized businesses.
• Cash App: a consumer app for sending money, a Cash App Card (Visa debit), direct deposit, investing and bitcoin.
• Afterpay: buy now, pay later instalments at online and in-store checkouts.
• TIDAL: music streaming.

Block is a large company with tens of millions of people using Cash App every month, so a lot of statements carry its name or address.

Why an address shows up instead of a company name

Every card transaction carries a short text label called the merchant descriptor, plus a city or address. The payment company decides what goes into it, and then your bank or card app reformats it. Descriptors have tight character limits, and many banking apps add “enriched” merchant details pulled from business databases. As a result, a transaction can end up showing the merchant’s registered address instead of a recognisable brand name.

So seeing “1955 Broadway Oakland” doesn’t mean you bought anything in Oakland. It’s simply the address on file for the company that processed the payment. The same thing happens with other big companies: a 702 SW 8th St charge, for example, is Walmart’s head office address.

Typical versions you may see:

The most common causes

1. Cash App sends paid with a credit card. Sending money from your Cash App balance or a linked debit card is free. Sending with a linked credit card carries a 3% fee, so a $100 send appears as $103. Some card issuers also treat these sends as cash advances, which can add the issuer’s own fee and a higher interest rate, so check your card terms if the total is bigger than you expected.

2. Cash App collecting money it’s owed. If a Cash App balance went negative, or a Cash App Borrow repayment was due, Cash App can charge your linked card to recover it. These charges often show the Block name and address rather than “Cash App”.

3. Cash App Card fees. The Cash App Card has no monthly fee, but its cardholder agreement lists fees for out-of-network ATM withdrawals ($2.50), foreign transactions (3%) and card replacement.

4. Afterpay instalments. Afterpay splits a purchase into instalments charged on a fixed schedule, so a charge can appear weeks after the original purchase. A missed instalment can lead to a late fee.

5. A purchase from a Square seller. Purchases from cafés, salons, market stalls and other small businesses using Square normally show “SQ *” followed by the seller’s name. Occasionally a bank’s app replaces this with the parent company’s details.

6. Someone else’s account using your card. A partner, teenager, roommate or ex may have linked your card to their own Cash App or Afterpay account. This is one of the most common reasons people don’t recognise the charge.

How to confirm the charge in five minutes

1. Match the date and amount in Cash App. Open the Activity tab and look for a payment on or a day before the statement date. Remember the 3% fee if a credit card was used.
2. Check Afterpay orders. Look at upcoming and past instalments in the Afterpay app or website.
3. Search your email for a Square receipt. Search for the exact amount. Square sellers often send digital receipts.
4. Read the words around the address. If another business name appears next to Block’s address, that business is usually the real merchant.
5. Ask anyone who shares the card. Check whether a family member has linked it to Cash App or Afterpay.
6. Still unknown? Contact your card issuer and ask for the full merchant details; banks can often see more than the app shows.

What to do if you don’t recognise it

• If it’s a Cash App payment you didn’t make: report it from the Support section inside the app, change your PIN and password, and remove the card from Cash App.
• If it’s an Afterpay charge you didn’t set up: contact Afterpay through its app or website and ask for the order details.
• If you can’t match it to anything: dispute it with your card issuer. US credit card holders have dispute rights under the Fair Credit Billing Act. Debit card protections under the Electronic Fund Transfer Act depend on how quickly you report the problem, so act fast.
• Watch out for fake support numbers. Scammers post fake “Cash App support” numbers on social media and in search ads. Use only the contact options inside the app or on cash.app. Cash App staff will never ask for your PIN or sign-in code.

Why this matters for businesses

For merchants, the 1955 Broadway confusion shows a costly problem: customers dispute charges they don’t recognise. Many people who see an unfamiliar descriptor call their bank instead of the seller, and each dispute can mean:

• losing the sale amount,
• paying a chargeback fee to the processor,
• staff time spent gathering evidence, and
• a higher dispute ratio, which can lead to higher processing costs or account reviews.

Disputes from customers who simply didn’t recognise a legitimate purchase are often called “friendly fraud”. The cheapest defence is a clear descriptor:

1. Use the name customers know. Square and most other processors let you set the business name that appears on statements. Use your trading name, not your legal entity name or an abbreviation.
2. Add contact details where allowed. A phone number or website in the descriptor gives customers a way to ask you before they ask their bank.
3. Send receipts by default. An emailed receipt with the same name as the statement makes matching easy.
4. Keep subscriptions obvious. For recurring billing, send a reminder before each charge and make cancelling easy. Surprise renewals are a leading cause of disputes.

Payment providers have their own reasons to keep descriptors clear, since disputes cost them money too. For merchants of any size, a clear descriptor is one of the simplest ways to protect revenue.

Frequently asked questions

Is a 1955 Broadway Oakland charge a scam?
Usually not. The address belongs to Block, Inc., a publicly listed payments company. But a fraudster using your card through Cash App would produce the same address, so always match it to your own activity.

Does this mean I bought something in Oakland?
No. It’s Block’s corporate address, not a store. The purchase could have happened anywhere.

Why was I charged by Block, Inc. when I don’t use Cash App?
Check whether you bought something from a small business that uses Square, or used Afterpay at a checkout. If neither applies, someone may have linked your card to their account. Contact your card issuer.

Why is the amount slightly more than I sent?
If you sent money with a credit card, Cash App adds a 3% fee. Your card issuer may also add a cash-advance fee.

How do I stop future charges?
Cancel at the source: remove the card from Cash App, pay off or close the Afterpay plan, or contact the Square seller about a subscription. If charges continue, ask your card issuer to block the merchant or issue a new card number.

How do I contact Cash App?
Use the Support section in the app or on cash.app, or call 1 (800) 969-1940. Its mailing address is Block, Inc., 1955 Broadway, Suite 600, Oakland, CA 94612.