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1-to-1 Numbers vs Campaign Numbers:
The Infrastructure
Behind Your Messaging
TextingOnly separates phone numbers into two types — each serving a distinct purpose. Getting this right is the most important infrastructure decision in your account. Using the wrong number type for a use case will limit what you can do.
The number type you assign determines everything the number can and can’t do. Most accounts need at least one Campaign number to use the platform’s core features.
Side-by-Side Comparison
Which Number Do I Need?
→ Campaign number. Lead Collectors require a Campaign number. This is the most common use case.
→ Campaign number. Bulk sends are only available on Campaign numbers with 10DLC registration.
→ 1-to-1 number. Assign one per rep for direct conversations, follow-ups, and scheduled check-ins.
→ Campaign numbers, one per market. Local area codes improve open rates — manage all from a single dashboard.
10DLC Registration by Number Type
Campaign numbers require 10DLC registration before sending — this is a carrier mandate. 1-to-1 numbers operate differently and have separate carrier throughput allowances. Start 10DLC registration the moment you add a Campaign number — the 5–15 day approval window is fixed regardless of when you apply.
Each subgroup should have its own Campaign number assigned. Numbers assigned to one subgroup are not shared with or visible to other subgroups.
Why local area codes outperform toll-free and out-of-state numbers — and how to manage a multi-market number strategy from one dashboard.
Read the Insight →Step-by-step: how to add a 1-to-1 or Campaign number, select an area code, and start 10DLC registration.
Read the KB Article →How agencies provision Campaign numbers per client subgroup and manage local 1-to-1 numbers across multi-market clients.
Read the Use Case →