Postpaid Average Revenue per Account (ARPA): Telecom Monetization per Account

Postpaid average revenue per account (ARPA) measures average postpaid service revenue earned per customer account over a period.

A common formulation is:

1Postpaid ARPA
2= Postpaid Service Revenue
3÷ Average Postpaid Accounts
4÷ Months in Period

The metric is especially useful when one account can contain multiple phone lines or other connected products.

ARPA is not ARPU

Grizzly Bulls already has a generic Average Revenue per User page, so there is no separate telecom-specific ARPU duplicate here. ARPU already covers the per-user analytical job.

ARPA answers a different question: how much service revenue does the carrier earn per account rather than per individual user or connection?

That distinction matters when households or businesses add more connections to one account.

1Account with 4 phone lines
2+ 1 watch
3+ 1 broadband gateway
4= 1 account, multiple revenue-generating connections

ARPA can rise because the account adds products even if revenue per individual connection is flat.

The numerator is usually service revenue, not total billed revenue

Verizon defines wireless retail postpaid ARPA using postpaid service revenue divided by average postpaid accounts. It excludes recurring device-payment billings, insurance premiums, and regulatory fees from the service-revenue numerator.

T-Mobile likewise defines postpaid ARPA as average monthly postpaid service revenue per account.

That means ARPA should not be reconstructed mechanically from total segment revenue, which can include equipment sales and other items.

Connections per account can move ARPA

An account-level metric can improve even without a broad price increase.

Drivers can include:

• additional phone lines;
• wearables or connected devices;
• fixed wireless broadband;
• fiber products;
• premium rate plans;
• fees;
• discounts and promotions; and
• business versus consumer mix.

T-Mobile explicitly notes that growth in average postpaid phone customers per account and additional postpaid products can increase ARPA.

ARPA growth is not pure pricing power

Suppose monthly ARPA rises from $150 to $156. The increase could reflect price, but it could also reflect more connections per account or richer product mix.

1ARPA growth
2≈ Price / plan changes
3+ Connections per account
4+ Product mix
5+ Fees
6- Promotions / discounts
7± Customer mix

This is an analytical bridge, not a standardized accounting formula.

A carrier with growing Fiber Net Additions or Fixed Wireless Access Net Additions may also change account composition through convergence or bundling.

Account definitions can differ

A household account, a business account, and an issuer-defined retail postpaid account are not necessarily equivalent economic units.

Acquisitions and product expansion can also change average accounts or the number of connections attached to each account. Cross-company comparisons therefore require more than lining up two reported dollar figures.

ARPA and customer growth answer different questions

Postpaid Phone Net Additions measure net phone-base growth. ARPA measures monetization per account.

A carrier can have:

• strong net additions and flat ARPA;
• weak net additions and rising ARPA;
• falling phone counts but rising connections per remaining account; or
• growing ARPA while total service revenue falls if the account base contracts enough.

Filing examples

T-Mobile's 2025 Form 10-K defines postpaid ARPA as average monthly postpaid service revenue per account and discusses product mix, fee revenue, promotions, and customers per account as drivers. Verizon reports wireless retail postpaid ARPA and explicitly excludes device-payment billings, insurance premiums, and regulatory fees from wireless retail postpaid service revenue.

Sources:

• T-Mobile US 2025 Form 10-K
• Verizon 2025 Form 10-K

Bottom line

Postpaid ARPA is an account-level service-revenue metric, not ARPU, total revenue per customer, or pure pricing power. Preserve the account definition, service-revenue numerator, products per account, promotions, and customer mix before comparing carriers.

Explore more topics in the Financial Research Encyclopedia.