566
Area code
Non geographic
Non geographic code, in service since 2012-04-17. Part of the 500/533/544/566/577/588/521/522/523/524/525/526/527/528/529/532/538/542 overlay complex — ten-digit dialing required.
Split from 500. Overlaid with 500, 521, 522, 523, 524, 525, 526, 527, 528, 529, 532, 533, 538, 542, 544, 577, 588 .
Statusin service
Introduced2012-04-17
Local dialingNA
Time zoneEastern
Last verified2026-09-17
Change history
Recorded events for this NPA- 2012-04-17 Assignment of NPA 566 for Personal Communications Services (PCS) new npa
- 2012-04-17Area code 566 entered service (created from 500).
Planning letters & orders
Primary documents| Date | Document | Subject |
|---|---|---|
| 2012-04-17 | PL-436 ↗ | Assignment of NPA 566 for Personal Communications Services (PCS) |
| 2011-12-09 | PL-432 ↗ | Assignment of NPA 566 for Personal Communications Services (PCS) |
| 2011-08-08 | PL-424 ↗ | Assignment of NPA 566 for Personal Communications Services (PCS) |