Methodology: Telecom Operating Metrics
What these figures are
The Operating Metrics card on a telecom carrier’s stock page shows the operating statistics a carrier reports in its own quarterly earnings release — the SEC Form 8-K exhibit filed alongside the results. These are the numbers wireless and broadband carriers use to describe how many customers they added, how many left, how much each pays, and how their subscription revenue is growing. Oxford Ledge reads them directly from the as-filed exhibit and normalizes the labels so you can compare a carrier to itself over time.
They are an Oxford Ledge Signal: our reading of a public filing, not a re-audit of the company’s books and not a licensed data-vendor feed. Every value on the card carries its filing as-of date and links back to the SEC source.
The metrics, in plain English
| Metric | What it measures |
|---|---|
| Postpaid net adds | The net change in postpaid subscribers — new lines added minus lines lost — in the period. Postpaid customers are billed monthly under a contract or device plan; they are the high-value base. The flagship cut is postpaid PHONE lines, the highest-revenue segment. |
| Postpaid churn | The percentage of postpaid subscribers who cancelled, per month. Because winning a customer costs far more than keeping one, small churn changes swing profits hard. It is the cleanest read on satisfaction and competitive pressure. |
| Postpaid ARPU | Average Revenue Per User — service revenue divided by subscribers, as a monthly dollar figure. “What is each customer worth per month?” Times the subscriber base, it drives service revenue. |
| ARPA (per account) | Average Revenue Per Account — revenue per billing account rather than per line. Because one account often holds several lines (a family plan), ARPA runs well above ARPU and captures the whole-household relationship. |
| Service revenue | The recurring revenue from providing wireless and broadband service — monthly fees — as distinct from one-time equipment (phone) sales. It is the durable, high-margin core of the business. |
| Broadband net adds | The net change in home broadband (internet) subscribers, increasingly via fixed wireless access (FWA). Watched as the next growth leg and a bundling lever — a household buying both services churns less. |
Why every value shows a base
The single biggest trap in telecom metrics is that the same word means different things. “Churn” can be postpaid phone churn, postpaid account churn, or prepaid churn — three different numbers, and a carrier will quote whichever flatters it. The same is true of net adds and ARPU. A bare number would hide that, so the card labels it:
- Base. A subscriber metric marked postpaid phone counts phone lines; one marked postpaid account counts billing accounts; one marked prepaid counts a wholly different, higher-churn customer type. We badge which base a value is on, and we treat postpaid PHONE as the flagship because it is the highest-value, most cross-carrier-comparable cut.
- Scope. The card shows the consolidated (company-wide) figure. Carriers also report segment slices (a Mobility or Consumer segment); we never let a segment total stand in for the company number. Service revenue is shown on its service scope, never a total-revenue figure that mixes in equipment sales.
These badges are the honesty contract of the card: they exist precisely because the same word can mean different things, and a reader deserves to know which one they are looking at.
Why the peer table leaves cells blank
On the industry peer table, each column pins one base — postpaid PHONE for net adds, churn, and ARPU; service scope for service revenue; per-account for ARPA. A carrier is shown in a column only if it reports that metric on exactly that base. A carrier that discloses, say, only a total-postpaid churn (phone + tablets + wearables blended) leaves an honest blank in the phone-churn column — never a value pooled in from a different base, and never a fabricated zero. A blank is a coverage gap, and the column footnotes how many carriers it covers.
How we read and normalize it
For each carrier we fetch the most recent quarterly earnings 8-K exhibit from SEC EDGAR, locate the operating-metrics table, and read each value verbatim from the reported column — never a prior-year or year-to-date column standing in for the quarter, and never a “% change” column mistaken for a level. We map the carrier’s label (“Postpaid phone net additions”, “Postpaid phone churn”, “Average revenue per account”) to a common metric name and record its base (postpaid phone / account / prepaid, service / total) alongside every figure.
The reading is checked against a hand-verified golden set for each carrier before any figure is allowed to publish; a value whose base the extractor cannot confidently determine is withheld rather than shown on a guessed default.
What we deliberately do not do
- We do not re-audit. The figures are as reported by the issuer under regulatory convention. We normalize labels; we do not restate the company’s numbers.
- We do not guess a base. A subscriber metric whose base we cannot pin from its own label is withheld, never assumed to be postpaid phone.
- We do not pool different bases. Postpaid phone churn and total postpaid churn are different numbers; the peer table compares only like with like and leaves the rest blank.
- We do not treat these as forecasts, ratings, or advice. They are historical operating results a company disclosed, presented for study.
Freshness
The stock page is cached at the edge, so a brand-new filing’s figures can lag up to a day on the cached page. Each value is stamped with the filing it came from, so the as-of date always tells you exactly how current the number is.