NumberResearchRecent prefix assignments
334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026
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, last 30 days
New assignments by month
Sep 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 |
|---|---|---|---|---|---|---|
| 2005-06-22 | 239-738 | 0–9 XXXall 10 · 3 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | FORT MYERS | FL |
| 2005-06-22 | 307-774 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | JACKSON | WY |
| 2005-06-22 | 307-880 | not yet reported which blocks → | GOLD STAR COMMUNICATIONS, LLC | 340D | FREEDOM | WY |
| 2005-06-22 | 307-887 | not yet reported which blocks → | GOLD STAR COMMUNICATIONS, LLC | 340D | AFTON | WY |
| 2005-06-22 | 321-987 | 0–9 XXXwhole prefix which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | COCOA | FL |
| 2005-06-22 | 347-325 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN07 | NY |
| 2005-06-22 | 407-803 | 0–9 XXXall 10 · 3 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | ORLANDO | FL |
| 2005-06-22 | 561-531 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | WPALMBEACH | FL |
| 2005-06-22 | 561-633 | 0–9 XXXall 10 · 3 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | WPALMBEACH | FL |
| 2005-06-22 | 716-720 | 0–9 XXXall 10 · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | JAMESTOWN | NY |
| 2005-06-22 | 727-254 | 0–9 XXXall 10 · 4 holders which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | CLEARWATER | FL |
| 2005-06-22 | 813-325 | 0–9 XXXall 10 · 2 holders which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | TAMPA | FL |
| 2005-06-22 | 819-892 | not yet reported which blocks → | Videotron Ltd. | 8306 | Maniwaki | — |
| 2005-06-22 | 902-264 | not yet reported which blocks → | Aliant Telecom (NS) | 8089 | Cheticamp | — |
| 2005-06-22 | 902-280 | not yet reported which blocks → | Aliant Telecom (NS) | 8089 | Inverness | — |
| 2005-06-22 | 902-296 | not yet reported which blocks → | Aliant Telecom (NS) | 8089 | Baddeck | — |
| 2005-06-22 | 902-524 | not yet reported which blocks → | Aliant Telecom (NS) | 8089 | Annapolis Royal | — |
| 2005-06-22 | 902-618 | not yet reported which blocks → | Aliant Telecom (NS) | 8089 | Tusket | — |
| 2005-06-22 | 902-619 | not yet reported which blocks → | Aliant Telecom (NS) | 8089 | Barrington | — |
| 2005-06-22 | 902-699 | not yet reported which blocks → | Aliant Telecom (NS) | 8089 | Amherst | — |
| 2005-06-22 | 902-767 | not yet reported which blocks → | Aliant Telecom (NS) | 8089 | Shubenacadie | — |
| 2005-06-22 | 902-770 | not yet reported which blocks → | Aliant Telecom (NS) | 8089 | Saulnierville | — |
| 2005-06-22 | 902-819 | not yet reported which blocks → | Aliant Telecom (NS) | 8089 | Weymouth | — |
| 2005-06-22 | 910-505 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | ABERDEEN | NC |
| 2005-06-22 | 941-301 | 0–9 XXXall 10 · 5 holders which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | BRADENTON | FL |
| 2005-06-22 | 941-822 | 0–9 XXXall 10 · 4 holders which blocks → | COMCAST IP PHONE, LLC | 318J | SARASOTA | FL |
| 2005-06-21 | 208-399 | 3XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | DRIGGS | ID |
| 2005-06-21 | 208-499 | 0XXX2XXX4XXX9XXX · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | 6565 | IRWIN | ID |
| 2005-06-21 | 218-818 | 0XXX7XXX which blocks → | ONVOY, LLC - MN | 184D | BRAINERD | MN |
| 2005-06-21 | 423-939 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 8 holders which blocks → | PAETEC ITEL, LLC | 829J | JASPER | TN |
| 2005-06-21 | 519-290 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Woodstock | — |
| 2005-06-21 | 519-295 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Thamesford | — |
| 2005-06-21 | 519-302 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Paris | — |
| 2005-06-21 | 519-303 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Ingersoll | — |
| 2005-06-21 | 519-304 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Brantford | — |
| 2005-06-21 | 709-429 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Clarenville | — |
| 2005-06-21 | 709-529 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Baie Verte | — |
| 2005-06-21 | 709-633 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Deer Lake | — |
| 2005-06-20 | 347-604 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN05 | NY |
| 2005-06-20 | 434-382 | 0–9 XXXall 10 · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | LYNCHBURG | VA |
| 2005-06-20 | 501-802 | 8XXX9XXX which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | JONESMILLS | AR |
| 2005-06-20 | 541-792 | 7XXX8XXX9XXX · 2 holders which blocks → | UNITED STATES CELLULAR - OR | 6349 | JOHN DAY | OR |
| 2005-06-20 | 845-751 | 0–9 XXXall 10 · 6 holders which blocks → | PAETEC ITEL, LLC | 829J | MONROE | NY |
| 2005-06-19 | 646-510 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY |
| 2005-06-19 | 646-512 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY |
| 2005-06-19 | 951-880 | 0–9 XXXall 10 · 4 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | RIVERSIDE | CA |
| 2005-06-17 | 313-221 | 0–9 XXXall 10 · 5 holders which blocks → | MICHIGAN BELL TEL CO | 9323 | DETROITZN1 | MI |
| 2005-06-17 | 601-851 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MS | 5178 | TOOMSUBA | MS |
| 2005-06-17 | 601-869 | 5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MS | 5178 | MAGNOLIA | MS |
| 2005-06-17 | 601-873 | 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MS | 5178 | OSYKA | MS |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.