NumberResearchRecent prefix assignments
338 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/23/2026
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
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 708-950 | not yet reported which blocks → | IL | |||
| — | 708-951 | none assigned yet which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | NORTHBROOK | IL |
| — | 708-952 | 2XXX6XXX · 2 holders which blocks → | ILLINOIS BELL TEL CO | 9329 | OAK LAWN | IL |
| — | 708-954 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | BLUEISLAND | IL |
| — | 708-955 | none assigned yet which blocks → | T-MOBILE USA, INC. | 6529 | LA GRANGE | IL |
| — | 708-956 | 0–9 XXXall 10 · 7 holders which blocks → | ONVOY, LLC | 224C | BERWYN | IL |
| — | 708-957 | not yet reported which blocks → | ILLINOIS BELL TEL CO | 9329 | HOMEWOOD | IL |
| — | 708-958 | not yet reported which blocks → | IL | |||
| — | 708-959 | not yet reported which blocks → | IL | |||
| — | 708-960 | 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | COMCAST IP PHONE, LLC | 318J | HOMEWOOD | IL |
| — | 708-961 | 2XXX which blocks → | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | BEECHER | IL |
| — | 708-962 | not yet reported which blocks → | SPOK, INC. | 6630 | MONEE | IL |
| — | 708-970 | 0–9 XXXall 10 · 3 holders which blocks → | METROPCS, INC. | 5562 | BELLWOOD | IL |
| — | 708-974 | not yet reported which blocks → | ILLINOIS BELL TEL CO | 9329 | PALOS PARK | IL |
| — | 708-975 | none assigned yet which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | NORTHBROOK | IL |
| — | 708-976 | not yet reported which blocks → | IL | |||
| — | 708-977 | none assigned yet which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROSELLE | IL |
| — | 708-978 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | ONVOY, LLC | 224C | BELLWOOD | IL |
| — | 708-983 | 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | CHICAGOHTS | IL |
| — | 708-984 | not yet reported which blocks → | SPOK, INC. | 6630 | MONEE | IL |
| — | 708-985 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | HARVEY | IL |
| — | 708-987 | none assigned yet which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROSELLE | IL |
| — | 708-989 | none assigned yet which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | NORTHBROOK | IL |
| — | 708-990 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | LA GRANGE | IL |
| — | 708-991 | 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | HOMEWOOD | IL |
| — | 708-993 | not yet reported which blocks → | INDIANA PAGING NETWORK, INC. | 6795 | LA GRANGE | IL |
| — | 708-995 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | MOKENA | IL |
| — | 708-997 | none assigned yet which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROSELLE | IL |
| — | 708-999 | not yet reported which blocks → | SPOK, INC. | 6630 | MAYWOOD | IL |
| — | 709-224 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Westport | — |
| — | 709-225 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | River Of Ponds | — |
| — | 709-227 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Freshwater | — |
| — | 709-228 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Long Harbour | — |
| — | 709-229 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Harbour Main | — |
| — | 709-234 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Gander | — |
| — | 709-241 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Port Albert | — |
| — | 709-243 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Cow Head | — |
| — | 709-244 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Comfort Cove - Newstead | — |
| — | 709-245 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | English Harbour East | — |
| — | 709-247 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Brig Bay | — |
| — | 709-248 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Hawkes Bay | — |
| — | 709-249 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Cook's Harbour | — |
| — | 709-251 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Pacquet | — |
| — | 709-252 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Burlington | — |
| — | 709-253 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Fleur De Lys | — |
| — | 709-254 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Ming's Bight | — |
| — | 709-255 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Nipper's Harbour | — |
| — | 709-256 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Gander | — |
| — | 709-257 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Botwood | — |
| — | 709-258 | not yet reported which blocks → | Aliant Telecom (NF) | 8085 | Bishop's Falls | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/23/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.