Recent prefix assignments
375 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/30/2026
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 |
|---|---|---|---|---|---|---|
| — | 601-973 | 4XXX which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | JACKSON | MS |
| — | 601-974 | 0XXX3XXX9XXX · 3 holders which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | JACKSON | MS |
| — | 601-976 | not yet reported which blocks → | MS | |||
| — | 601-977 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | JACKSON | MS |
| — | 601-978 | 0XXX7XXX · 2 holders which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | JACKSON | MS |
| — | 601-979 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | JACKSON | MS |
| — | 601-981 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | JACKSON | MS |
| — | 601-982 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | JACKSON | MS |
| — | 601-983 | 0–9 XXXall 10 · 5 holders which blocks → | METROPCS, INC. | 5562 | JACKSON | MS |
| — | 601-984 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | JACKSON | MS |
| — | 601-985 | 7XXX8XXX9XXX which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | JACKSON | MS |
| — | 601-986 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | DUFFEE | MS |
| — | 601-987 | 2XXX7XXX which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | JACKSON | MS |
| — | 601-989 | 9XXX which blocks → | SOUTHEAST MISSISSIPPI TEL. CO. | 3301 | SAND HILL | MS |
| — | 601-991 | 4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | JACKSON | MS |
| — | 601-992 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | JACKSON | MS |
| — | 601-994 | 0XXX1XXX2XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS | 6396 | VICKSBURG | MS |
| — | 601-995 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | JACKSON | MS |
| — | 601-997 | none assigned yet which blocks → | BANDWIDTH.COM CLEC, LLC - MS | 992E | HEIDELBERG | MS |
| — | 601-998 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | XXXXXXXXXX | MS |
| — | 601-999 | not yet reported which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | XXXXXXXXXX | MS |
| — | 602-200 | 4XXX which blocks → | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| — | 602-201 | not yet reported which blocks → | SPOK, INC. | 6630 | PHOENIX | AZ |
| — | 602-202 | not yet reported which blocks → | SPOK, INC. | 6630 | PHOENIX | AZ |
| — | 602-204 | not yet reported which blocks → | SPOK, INC. | 6630 | PHOENIX | AZ |
| — | 602-205 | not yet reported which blocks → | SPOK, INC. | 6630 | PHOENIX | AZ |
| — | 602-206 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| — | 602-207 | 8XXX which blocks → | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| — | 602-208 | not yet reported which blocks → | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| — | 602-211 | not yet reported which blocks → | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | AZ |
| — | 602-212 | not yet reported which blocks → | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| — | 602-213 | not yet reported which blocks → | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| — | 602-214 | 0XXX2XXX which blocks → | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| — | 602-215 | not yet reported which blocks → | SPOK, INC. | 6630 | PHOENIX | AZ |
| — | 602-216 | not yet reported which blocks → | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| — | 602-217 | 0XXX3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| — | 602-218 | 0–9 XXXall 10 · 3 holders which blocks → | COMCAST IP PHONE, LLC | 318J | PHOENIX | AZ |
| — | 602-219 | not yet reported which blocks → | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| — | 602-220 | not yet reported which blocks → | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| — | 602-221 | not yet reported which blocks → | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| — | 602-222 | not yet reported which blocks → | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| — | 602-223 | 1XXX which blocks → | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| — | 602-224 | not yet reported which blocks → | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| — | 602-225 | not yet reported which blocks → | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| — | 602-226 | not yet reported which blocks → | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| — | 602-227 | not yet reported which blocks → | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| — | 602-228 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| — | 602-229 | not yet reported which blocks → | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| — | 602-230 | not yet reported which blocks → | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| — | 602-231 | not yet reported which blocks → | QWEST CORPORATION | 9636 | PHOENIX | AZ |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.