NumberResearchRecent prefix assignments
371 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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
New assignments by month
Sep 2026
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 214-952 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | GRANDPRARI | TX | |
| 214-953 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-954 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-955 | SOUTHWESTERN BELL | 9533 | XXXXXXXXXX | TX | |
| 214-956 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-957 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANDPRARI | TX | |
| 214-958 | TX | ||||
| 214-959 | TX | ||||
| 214-961 | AMERICAN MESSAGING SERVICES, LLC | 9748 | GRANDPRARI | TX | |
| 214-962 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-963 | AMERICAN MESSAGING SERVICES, LLC | 9748 | GRANDPRARI | TX | |
| 214-964 | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7516 | DALLAS | TX | |
| 214-965 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-967 | TELETOUCH COMMUNICATIONS, INC. | 6591 | GRANDPRARI | TX | |
| 214-969 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-976 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | TX | |
| 214-977 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-978 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-979 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-980 | ONVOY, LLC - TX | 903C | WAXAHACHIE | TX | |
| 214-981 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-986 | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX | |
| 214-987 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-989 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 214-990 | SOUTHWESTERN BELL | 9533 | XXXXXXXXXX | TX | |
| 214-992 | SPOK, INC. | 6630 | GRANDPRARI | TX | |
| 214-993 | SPOK, INC. | 6630 | GRANDPRARI | TX | |
| 214-999 | SOUTHWESTERN BELL | 9533 | DALLAS | TX | |
| 215-202 | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN41 | PA | |
| 215-203 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-204 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-205 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHLDLPHZN2 | PA | |
| 215-206 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN33 | PA | |
| 215-208 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN43 | PA | |
| 215-209 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-210 | VERIZON PENNSYLVANIA, INC. | 9208 | XXXXXXXXXX | PA | |
| 215-211 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | PA | |
| 215-212 | SPOK, INC. | 6630 | PHLDLPHZN1 | PA | |
| 215-213 | SPOK, INC. | 6630 | PHLDLPHZN1 | PA | |
| 215-214 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN4 | PA | |
| 215-216 | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7309 | PHLDLPHZN1 | PA | |
| 215-218 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-219 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHLDLPHZN2 | PA | |
| 215-220 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHLDLPHZN2 | PA | |
| 215-221 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-222 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA | |
| 215-223 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-224 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN3 | PA | |
| 215-225 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-226 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
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.