NRNumberResearch Membership · Data 09/17/2026

North American Numbering Plan

The numbering plan, on the record.

Every area code, prefix assignment and relief decision — computed from official NANPA and CNA files, with a source date on every figure. When something can’t be verified, we say so.

Try 626 212 305 416

No record changes detected in the most recent import (2026-09-17) · Change log · Methodology

Number anatomylive record
  • NPA area code626
  • NXX prefix888
  • OCN assignee code649C
  • AssigneeONVOY, LLC - CA
  • Rate centerALHAMBRA

Initial assignment ≠ current routing — methodology

485Area codes in service1 → 204,961US prefix assignments → 738Planning letters, 1997–present → 9NPAs in relief planning →
Latest numbering events Open relief tracker →
Latest numbering events from NANPA planning letters
DateNPAEventType
2026-09-04 912 / 565 NPA 565 to Overlay NPA 912 (Georgia)NANPA planning letter overlay
2026-07-16 543 Assignment of NPA 543 for Non-Geographic ServicesNANPA planning letter new npa
2026-05-26 542 Assigning from NPA 542 for Non-Geographic ServicesNANPA planning letter other
2026-03-16 542 Assignment of NPA 542 for Non-Geographic ServicesNANPA planning letter new npa
2025-10-28 538 Assigning from NPA 538 for Non-Geographic ServicesNANPA planning letter other
2025-10-17 367 / 273 NPA 273 to Overlay NPA 367/418/581 (Eastern Québec)NANPA planning letter overlay
2025-07-02 538 Assignment of NPA 538 for Non-Geographic ServicesNANPA planning letter new npa
2025-03-26 347 / 465 NPA 465 to Overlay NPA 347/718/917/929 (New York)NANPA planning letter overlay
Relief watch 9 planning areas
  1. 502 KY · US · since 1947-01-01 Planning
  2. 509 WA · US · since 1957-01-01 Planning
  3. 580 OK · US · since 1997-11-01 Planning
  4. 626 CA · US · since 1997-06-14 Planning
  5. 657 CA · US · since 2008-09-23 Planning
  6. 714 CA · US · since 1951-01-01 Planning
  7. 828 NC · US · since 1998-03-22 Planning
  8. 912 GA · US · since 1954-01-01 Planning
  9. 956 TX · US · since 1997-07-07 Planning

Data library

Every dataset embeds its source file date so citations stay reproducible. Free under CC BY 4.0.

01

Area Code Registry

Every NPA with status, region, service date and parentage.

800 rows · CSV · JSON09/17/2026
02

Relief Planning Events

Relief decisions consolidated from NANPA planning letters since 1997.

245 rows · CSV · JSON09/17/2026
03

Prefix / OCN Reference

204,961 US NPA-NXX assignments with initial assignee and rate center.

Loaded — download planned09/17/2026
04

Numbering Change Log

Every import and record-level change, with review status.

Open log · RSSContinuous

Provenance

How records are classified. Every important fact keeps its source, file date and verification date.

Tier A / Primary

NANPA area-code database and CO-code files, NANPA planning letters, CNA records and FCC reports.

Tier C / Derived

Counts, utilization and event consolidation computed by NumberResearch from primary files, with method and file date attached.

Excluded

Unsourced lists, crowd-edited claims, caller-ID guesses and records that cannot be independently verified.

LERG™ data is proprietary to iconectiv. NumberResearch does not use, publish or redistribute the LERG or data derived from it; our records come exclusively from publicly available NANPA and CNA files.

1 Computed from the NANPA area code database, file date 09/17/2026; the in-service count includes one suspended NPA. Relief-planning flags are NANPA’s designations, not our forecasts. All counts are recalculated on every import.