728
Area code
FL
United States geographic area code, in service since 2023-03-10. Part of the 561/728 overlay complex — ten-digit dialing required.
Statusin service
Introduced2023-03-10
JurisdictionFL, US
Local dialing10D
Time zoneEastern
Last verified2026-09-17
Utilization 10.2% of assignable prefixes assigned
As of 09/17/2026
0%81 of ~792 assignable NXX values (200–999 excl. N11)100%
Prefix-level assignment does not equal number-level exhaustion; thousands-block pooling extends capacity. First assignment on record 2023-10-20, most recent 2026-07-21.
Area codes serve rate-center geographies, not municipal boundaries. “FL” identifies the jurisdiction, not an exact city footprint.
Top assignees
Ranked by assigned prefixes · initial assignee ≠ current carrier| Rank | Assignee | Prefixes | Share |
|---|---|---|---|
| 01 | ONVOY, LLC - FL | 13 | 16% |
| 02 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 12 | 14.8% |
| 03 | NEW CINGULAR WIRELESS PCS, LLC - GA | 9 | 11.1% |
| 04 | MULTIPLE OCN LISTING | 9 | 11.1% |
| 05 | WIDE VOICE, LLC - FL | 8 | 9.9% |
| 06 | OMNIPOINT MIAMI E LICENSE, LLC | 8 | 9.9% |
| 07 | 5 | 6.2% | |
| 08 | LIVEWIRE TELECOM, LLC | 4 | 4.9% |
| 09 | BANDWIDTH.COM CLEC, LLC - FL | 3 | 3.7% |
| 10 | SHELCOMM | 2 | 2.5% |
Important: these are initial assignees from NANPA CO-code records — the carrier a prefix was originally assigned to. Because of number portability, the current serving carrier of any individual number may differ.
Change history
Recorded events for this NPA- 2022-02-18 NPA 728 to Overlay NPA 561 (Florida)
- 2023-03-10Area code 728 entered service (created from 561).
Planning letters & orders
Primary documents| Date | Document | Subject |
|---|---|---|
| 2022-02-18 | PL-582 ↗ | NPA 728 to Overlay NPA 561 (Florida) |