NumberResearch Membership · Data 2026-04

Recent prefix assignments

352 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 2026-04

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.

Most active assignees, last 30 days
8X8, INC. 38
NEW CINGULAR WIRELESS PCS, LLC - IL 31
NEW CINGULAR WIRELESS PCS, LLC - DC 30
ONVOY, LLC - CA 28
ONVOY, LLC - NJ 18
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXAssigneeOCNRate centerState
970-347 QWEST CORPORATION 9636 GREELEY CO
970-348 QWEST CORPORATION 9636 GREELEY CO
970-349 QWEST CORPORATION 9636 CRESTEDBTE CO
970-350 QWEST CORPORATION 9636 GREELEY CO
970-351 QWEST CORPORATION 9636 GREELEY CO
970-352 QWEST CORPORATION 9636 GREELEY CO
970-353 QWEST CORPORATION 9636 GREELEY CO
970-354 PLAINS COOP. TEL. ASSN., INC. 2199 IDALIA CO
970-356 QWEST CORPORATION 9636 GREELEY CO
970-357 PLAINS COOP. TEL. ASSN., INC. 2199 COPE CO
970-358 PLAINS COOP. TEL. ASSN., INC. 2199 JOES CO
970-359 PLAINS COOP. TEL. ASSN., INC. 2199 ECKLEY CO
970-361 T-MOBILE USA, INC. 6529 GRAND JCT CO
970-362 PLAINS COOP. TEL. ASSN., INC. 2199 KIRK CO
970-365 UNION TEL. CO. 2297 LODORE CO
970-369 QWEST CORPORATION 9636 TELLURIDE CO
970-370 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 FORTMORGAN CO
970-371 NEW CINGULAR WIRELESS PCS, LLC 6010 GREELEY CO
970-372 LEVEL 3 COMMUNICATIONS, LLC - CO 6118 FT COLLINS CO
970-373 LEVEL 3 COMMUNICATIONS, LLC - CO 6118 GREELEY CO
970-374 CENTURYTEL OF EAGLE, INC. DBA CENTURYLINK 2185 DINOSAUR CO
970-375 QWEST CORPORATION 9636 DURANGO CO
970-376 NEW CINGULAR WIRELESS PCS, LLC 6010 VAIL CO
970-377 QWEST CORPORATION 9636 FT COLLINS CO
970-378 QWEST CORPORATION 9636 GREELEY CO
970-379 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GLENWD SPG CO
970-380 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 FORTMORGAN CO
970-381 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GREELEY CO
970-382 QWEST CORPORATION 9636 DURANGO CO
970-383 PLAINS COOP. TEL. ASSN., INC. 2199 ANTON CO
970-384 QWEST CORPORATION 9636 GLENWD SPG CO
970-385 QWEST CORPORATION 9636 DURANGO CO
970-386 EASTERN SLOPE RURAL TEL. ASSN., INC. 2186 WOODROW CO
970-387 QWEST CORPORATION 9636 SILVERTON CO
970-389 NEW CINGULAR WIRELESS PCS, LLC 6010 DILLON CO
970-390 NEW CINGULAR WIRELESS PCS, LLC 6010 VAIL CO
970-391 T-MOBILE USA, INC. 6529 FT COLLINS CO
970-392 QWEST CORPORATION 9636 GREELEY CO
970-395 QWEST CORPORATION 9636 GREELEY CO
970-396 NEW CINGULAR WIRELESS PCS, LLC 6010 GREELEY CO
970-397 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 GREELEY CO
970-399 FASTTRACK COMMUNICATIONS, INC. - CO 330B DELTA CO
970-401 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 VAIL CO
970-402 T-MOBILE USA, INC. 6529 FT COLLINS CO
970-406 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 DILLON CO
970-407 QWEST CORPORATION 9636 FT COLLINS CO
970-409 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 DILLON CO
970-411 MULTIPLE OCN LISTING MULT XXXXXXXXXX CO
970-412 T-MOBILE USA, INC. 6529 FT COLLINS CO
970-416 QWEST CORPORATION 9636 FT COLLINS CO

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.