719
Area code
Statusin service
Introduced1988-03-05
JurisdictionCO, US
Local dialing10D
Time zoneMountain
Last verified2026-09-17
Utilization 85.9% of assignable prefixes assigned
As of 09/17/2026
0%680 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 2001-01-03, most recent 2026-09-11.
Area codes serve rate-center geographies, not municipal boundaries. “CO” identifies the jurisdiction, not an exact city footprint.
Top assignees
Ranked by assigned prefixes · initial assignee ≠ current carrier| Rank | Assignee | Prefixes | Share |
|---|---|---|---|
| 01 | QWEST CORPORATION | 166 | 24.4% |
| 02 | ONVOY, LLC - CO | 77 | 11.3% |
| 03 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 62 | 9.1% |
| 04 | NEW CINGULAR WIRELESS PCS, LLC | 59 | 8.7% |
| 05 | T-MOBILE USA, INC. | 49 | 7.2% |
| 06 | LEVEL 3 COMMUNICATIONS, LLC - CO | 34 | 5% |
| 07 | CENTURYTEL OF EAGLE, INC. DBA CENTURYLINK | 34 | 5% |
| 08 | TON80 COMMUNICATIONS, LLC | 23 | 3.4% |
| 09 | BANDWIDTH.COM CLEC, LLC - CO | 22 | 3.2% |
| 10 | TELEPORT COMMUNICATIONS AMERICA, LLC - CO | 15 | 2.2% |
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- 1988-03-05Area code 719 entered service (created from 303).
Planning letters & orders
Primary documents| Date | Document | Subject |
|---|---|---|
| 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 |
| 1987-03-27 | IL-87-03-045 ↗ | NANP - SPLIT OF THE 303 NUMBERING PLAN AREA |