NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
Most active assignees, all time — NPA 365
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
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Dec 2025
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2021-09-24 | 365-547 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Kleinburg | — |
| 2021-09-24 | 365-548 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Maple | — |
| 2021-09-24 | 365-549 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Markham | — |
| 2021-09-24 | 365-554 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Newmarket | — |
| 2021-09-24 | 365-561 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Mount Albert | — |
| 2021-09-24 | 365-562 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Nobleton | — |
| 2021-09-24 | 365-563 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Oak Ridges | — |
| 2021-09-24 | 365-564 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Palgrave | — |
| 2021-09-24 | 365-568 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Queensville | — |
| 2021-09-24 | 365-569 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Richmond Hill | — |
| 2021-09-24 | 365-570 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Schomberg | — |
| 2021-09-24 | 365-571 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Stouffville | — |
| 2021-09-24 | 365-572 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Sutton | — |
| 2021-09-24 | 365-573 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Thornhill | — |
| 2021-09-24 | 365-574 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Unionville | — |
| 2021-09-24 | 365-587 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Uxbridge | — |
| 2021-09-24 | 365-596 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Woodbridge | — |
| 2021-09-23 | 365-537 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Aurora | — |
| 2021-09-23 | 365-538 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Bethesda | — |
| 2021-09-23 | 365-539 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Bolton | — |
| 2021-09-23 | 365-541 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Claremont | — |
| 2021-09-23 | 365-542 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Gormley | — |
| 2021-09-23 | 365-543 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Keswick | — |
| 2021-09-23 | 365-546 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | King City | — |
| 2021-06-25 | 365-845 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Oshawa | — |
| 2021-06-25 | 365-846 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Whitby | — |
| 2021-06-24 | 365-834 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Blackstock | — |
| 2021-06-24 | 365-835 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Ajax-Pickering | — |
| 2021-06-24 | 365-836 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Bowmanville | — |
| 2021-06-24 | 365-837 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Brooklin | — |
| 2021-06-24 | 365-839 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Hampton | — |
| 2021-06-24 | 365-840 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Newcastle | — |
| 2021-06-24 | 365-841 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Newtonville | — |
| 2021-06-24 | 365-842 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Orono | — |
| 2021-06-24 | 365-843 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Port Perry | — |
| 2021-06-24 | 365-844 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | South Pickering | — |
| 2021-06-21 | 365-590 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Campbellville | — |
| 2021-06-21 | 365-591 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Freelton | — |
| 2021-06-21 | 365-592 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Georgetown | — |
| 2021-06-21 | 365-593 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Milton | — |
| 2021-06-21 | 365-594 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Oakville | — |
| 2021-06-21 | 365-595 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Burlington | — |
| 2021-06-18 | 365-589 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Waterdown | — |
| 2020-08-21 | 365-935 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | St. Catharines-Thorold | — |
| 2020-08-21 | 365-948 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Selkirk | — |
| 2020-08-21 | 365-949 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Stevensville | — |
| 2020-08-21 | 365-951 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Vineland | — |
| 2020-08-21 | 365-952 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Wainfleet | — |
| 2020-08-21 | 365-953 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Welland | — |
| 2020-08-21 | 365-954 | not yet reported which blocks → | TekSavvy Solutions Inc | 548H | Wellandport | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.