561
Area code
FL
United States geographic area code, in service since 1996-05-13. Part of the 561/728 overlay complex — ten-digit dialing required.
Split from 407. Created 772. Created 728. Overlaid with 728 .
Statusin service
Introduced1996-05-13
JurisdictionFL, US
Local dialing10D
Time zoneEastern
Last verified2026-09-17
Utilization 101% of assignable prefixes assigned
As of 09/17/2026
0%800 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 2001-03-23, most recent 2026-04-28.
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 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 198 | 24.8% |
| 02 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 101 | 12.6% |
| 03 | NEW CINGULAR WIRELESS PCS, LLC - GA | 84 | 10.5% |
| 04 | OMNIPOINT MIAMI E LICENSE, LLC | 71 | 8.9% |
| 05 | ONVOY, LLC - FL | 48 | 6% |
| 06 | METROPCS, INC. | 42 | 5.3% |
| 07 | PAETEC ITEL, LLC | 41 | 5.1% |
| 08 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | 28 | 3.5% |
| 09 | BANDWIDTH.COM CLEC, LLC - FL | 23 | 2.9% |
| 10 | LEVEL 3 COMMUNICATIONS, LLC - FL | 22 | 2.8% |
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)
- 1996-05-13Area code 561 entered service (created from 407).
Planning letters & orders
Primary documents| Date | Document | Subject |
|---|---|---|
| 2022-02-18 | PL-582 ↗ | NPA 728 to Overlay NPA 561 (Florida) |
| 2021-01-08 | PL-556 ↗ | Transition to 10-digit dialing (for 988 as 3-digit access to National Suicide Prevention Lifeline) – supersedes PL-544 |
| 2020-08-17 | PL-544 ↗ | Transition to 10-digit dialing (for 988 as 3-digit access to National Suicide Prevention Hotline |
| 2001-11-20 | PL-311 ↗ | 561 NPA Split, Creating 772 NPA (Florida) |
| 1999-04-22 | PL-171 ↗ | Extraordinary NPA-Specific Jeopardy Conservation Procedures Announced for 561 NPA (Florida) |
| 1996-02-08 | IL-96-02-004 ↗ | NANP-SPLIT OF 407 NUMBERING PLAN AREA (NPA) |