585
Area code
Statusin service
Introduced2001-11-15
JurisdictionNY, US
Local dialing7D
Time zoneEastern
Last verified2026-09-17
Utilization 88.3% of assignable prefixes assigned
As of 09/17/2026
0%699 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 2001-04-11, most recent 2026-06-16.
Area codes serve rate-center geographies, not municipal boundaries. “NY” identifies the jurisdiction, not an exact city footprint.
Top assignees
Ranked by assigned prefixes · initial assignee ≠ current carrier| Rank | Assignee | Prefixes | Share |
|---|---|---|---|
| 01 | FRONTIER TELEPHONE OF ROCHESTER, INC. | 186 | 26.6% |
| 02 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 69 | 9.9% |
| 03 | ONVOY, LLC- NY | 56 | 8% |
| 04 | NEW CINGULAR WIRELESS PCS, LLC - DC | 47 | 6.7% |
| 05 | VERIZON NEW YORK, INC. | 40 | 5.7% |
| 06 | PAETEC ITEL, LLC | 34 | 4.9% |
| 07 | OMNIPOINT COMMUNICATIONS, INC. - NY | 33 | 4.7% |
| 08 | TWC IP ENABLED SERVICES, LLC | 22 | 3.1% |
| 09 | BANDWIDTH.COM CLEC, LLC - NY | 21 | 3% |
| 10 | ONVOY SPECTRUM, LLC | 17 | 2.4% |
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- 2001-11-15Area code 585 entered service (created from 716).
Planning letters & orders
Primary documents| Date | Document | Subject |
|---|---|---|
| 2001-05-07 | PL-278 ↗ | Correction to PL 270, 716-585 Split (New York) |
| 2001-04-17 | PL-270 ↗ | 716 NPA Split, Creating 585 NPA (New York) |