NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

355 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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
ONVOY, LLC - CA 31
NEW CINGULAR WIRELESS PCS, LLC - IL 28
NEW CINGULAR WIRELESS PCS, LLC - DC 26
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
225-932 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BATONROUGE LA
225-933 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
225-934 SPOK, INC. 6630 BATONROUGE LA
225-935 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BATONROUGE LA
225-936 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
225-937 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
225-938 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
225-939 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
225-950 LA
225-952 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BATONROUGE LA
225-953 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 BATONROUGE LA
225-954 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 BATONROUGE LA
225-955 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 BATONROUGE LA
225-958 LA
225-959 LA
225-963 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 BATONROUGE LA
225-964 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 BATONROUGE LA
225-975 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 BATONROUGE LA
225-976 LA
225-977 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BATONROUGE LA
225-978 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
225-979 SPOK, INC. 6630 BATONROUGE LA
225-985 LA
225-987 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BATONROUGE LA
225-988 LA
225-999 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
227-211 MULTIPLE OCN LISTING MULT XXXXXXXXXX MD
227-311 MULTIPLE OCN LISTING MULT XXXXXXXXXX MD
227-411 MULTIPLE OCN LISTING MULT XXXXXXXXXX MD
227-511 MULTIPLE OCN LISTING MULT XXXXXXXXXX MD
227-555 MULTIPLE OCN LISTING MULT DIR ASST MD
227-611 MULTIPLE OCN LISTING MULT XXXXXXXXXX MD
227-700 MD
227-711 MULTIPLE OCN LISTING MULT XXXXXXXXXX MD
227-811 MULTIPLE OCN LISTING MULT XXXXXXXXXX MD
227-911 MULTIPLE OCN LISTING MULT XXXXXXXXXX MD
227-950 MD
227-958 MD
227-959 MD
227-976 MD
228-202 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 PASCAGOULA MS
228-204 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 XXXXXXXXXX MS
228-205 LEVEL 3 COMMUNICATIONS, LLC - MS 5178 PASCAGOULA MS
228-206 LEVEL 3 COMMUNICATIONS, LLC - MS 5178 GULFPORT MS
228-207 LEVEL 3 COMMUNICATIONS, LLC - MS 5178 BILOXI MS
228-208 SPOK, INC. 6630 BILOXI MS
228-209 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 BILOXI MS
228-210 SPOK, INC. 6630 PASCAGOULA MS
228-211 MULTIPLE OCN LISTING MULT XXXXXXXXXX MS
228-213 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 GULFPORT MS

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.