NumberResearchRecent prefix assignments
360 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026
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 |
|---|---|---|---|---|---|---|
| — | 708-947 | 6XXX which blocks → | ILLINOIS BELL TEL CO | 9329 | MAYWOOD | IL |
| — | 708-948 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | OAK PARK | IL |
| — | 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 | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.