NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

371 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 31
NEW CINGULAR WIRELESS PCS, LLC - DC 30
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
930-611 MULTIPLE OCN LISTING MULT XXXXXXXXXX IN
930-700 IN
930-711 MULTIPLE OCN LISTING MULT XXXXXXXXXX IN
930-811 MULTIPLE OCN LISTING MULT XXXXXXXXXX IN
930-911 MULTIPLE OCN LISTING MULT XXXXXXXXXX IN
930-950 IN
930-958 IN
930-959 IN
930-976 IN
931-203 TELNYX LLC 073H SEWANEE TN
931-204 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 XXXXXXXXXX TN
931-205 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 SHELBYVL TN
931-206 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 CLARKSVL TN
931-207 PAETEC ITEL, LLC 829J PULASKI TN
931-209 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 WAVERLY TN
931-210 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CROSSVILLE TN
931-211 MULTIPLE OCN LISTING MULT XXXXXXXXXX TN
931-212 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 SHELBYVL TN
931-215 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA TN
931-216 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLARKSVL TN
931-217 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 CLARKSVL TN
931-219 PAETEC ITEL, LLC 829J CENTERVL TN
931-220 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLARKSVL TN
931-221 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 CLARKSVL TN
931-222 PAETEC ITEL, LLC 829J TULLAHOMA TN
931-223 PAETEC ITEL, LLC 829J COLUMBIA TN
931-224 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 SHELBYVL TN
931-225 PAETEC ITEL, LLC 829J SHELBYVL TN
931-226 LEVEL 3 COMMUNICATIONS, LLC - TN 4806 PULASKI TN
931-227 PAETEC ITEL, LLC 829J FAYETTEVL TN
931-228 PAETEC ITEL, LLC 829J MCEWEN TN
931-229 PAETEC ITEL, LLC 829J LYNCHBURG TN
931-230 PAETEC ITEL, LLC 829J HOHENWALD TN
931-231 PAETEC ITEL, LLC 829J LAWRENCEBG TN
931-232 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 DOVER TN
931-233 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN 7977 CLARKSVL TN
931-235 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MANCHESTER TN
931-237 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 CLARKSVL TN
931-241 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 CLARKSVL TN
931-242 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 LAWRENCEBG TN
931-243 TWIN LAKES TEL. COOP. CORP. 0579 CELINA TN
931-244 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAWRENCEBG TN
931-245 PAETEC ITEL, LLC 829J CLARKSVL TN
931-246 PAETEC ITEL, LLC 829J LEWISBURG TN
931-247 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 TULLAHOMA TN
931-248 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CROSSVILLE TN
931-249 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLARKSVL TN
931-252 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COOKEVILLE TN
931-258 TWIN LAKES TEL. COOP. CORP. 0579 MOSS TN
931-260 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 COOKEVILLE TN

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.