NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2004-11-04 | 347-776 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN08 | NY |
| 2004-11-04 | 347-813 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN08 | NY |
| 2004-08-30 | 347-789 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN06 | NY |
| 2002-10-28 | 347-244 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN06 | NY |
| 2002-08-08 | 347-446 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN06 | NY |
| 2002-05-20 | 347-254 | 3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN07 | NY |
| 2002-05-20 | 347-255 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY |
| 2002-03-13 | 347-224 | 3XXX5XXX6XXX8XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN05 | NY |
| 2001-10-15 | 347-439 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN06 | NY |
| 2001-10-11 | 347-453 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY |
| 2001-10-11 | 347-454 | 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY |
| 2001-09-15 | 347-276 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN06 | NY |
| 2001-09-15 | 347-277 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN06 | NY |
| 2001-08-14 | 347-267 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN06 | NY |
| 2001-07-18 | 347-268 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN06 | NY |
| — | 347-205 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN05 | NY |
| — | 347-366 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN03 | NY |
| — | 347-463 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN06 | NY |
| — | 347-726 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN03 | NY |
| — | 347-735 | 0–9 XXXall 10 · 5 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN03 | NY |
| — | 347-753 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY |
| — | 347-819 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN03 | NY |
| — | 347-820 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN03 | NY |
| — | 347-821 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN03 | NY |
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.