NumberResearchRecent thousands-block assignments
32 blocks assigned in March 2026 · from the daily NANPA thousands-block report, 09/19/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, March 2026 — NPA 464
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-03-31 | 464-277-4XXX | 4000–4999 | Assigned | AHOI LLC | 883K | SUMMIT | IL |
| 2026-03-31 | 464-777-1XXX | 1000–1999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | WILLOW SPG | IL |
| 2026-03-23 | 464-258-4XXX | 4000–4999 | Assigned | PEERLESS NETWORK OF ILLINOIS, LLC - IL | 063E | CICERO | IL |
| 2026-03-19 | 464-258-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | CICERO | IL |
| 2026-03-19 | 464-259-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | CICERO | IL |
| 2026-03-19 | 464-282-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OAK FOR SO | IL |
| 2026-03-19 | 464-282-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OAK FOR SO | IL |
| 2026-03-19 | 464-282-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OAK FOR SO | IL |
| 2026-03-19 | 464-282-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OAK FOR SO | IL |
| 2026-03-19 | 464-287-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OAK FOR SO | IL |
| 2026-03-19 | 464-287-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OAK FOR SO | IL |
| 2026-03-19 | 464-287-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OAK FOR SO | IL |
| 2026-03-19 | 464-287-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OAK FOR SO | IL |
| 2026-03-19 | 464-287-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OAK FOR SO | IL |
| 2026-03-19 | 464-287-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OAK FOR SO | IL |
| 2026-03-12 | 464-280-1XXX | 1000–1999 | Assigned | ONVOY, LLC | 224C | ORLAND | IL |
| 2026-03-12 | 464-284-1XXX | 1000–1999 | Assigned | ONVOY, LLC | 224C | CHICAGOHTS | IL |
| 2026-03-12 | 464-284-2XXX | 2000–2999 | Assigned | ONVOY, LLC | 224C | CHICAGOHTS | IL |
| 2026-03-06 | 464-283-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | BLUEISLAND | IL |
| 2026-03-04 | 464-280-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ORLAND | IL |
| 2026-03-03 | 464-270-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LA GRANGE | IL |
| 2026-03-02 | 464-283-1XXX | 1000–1999 | Assigned | ONVOY, LLC | 224C | BLUEISLAND | IL |
| 2026-03-02 | 464-286-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FOREST | IL |
| 2026-03-02 | 464-286-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FOREST | IL |
| 2026-03-02 | 464-286-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FOREST | IL |
| 2026-03-02 | 464-286-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FOREST | IL |
| 2026-03-02 | 464-286-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FOREST | IL |
| 2026-03-02 | 464-286-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FOREST | IL |
| 2026-03-02 | 464-286-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FOREST | IL |
| 2026-03-02 | 464-286-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FOREST | IL |
| 2026-03-02 | 464-286-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FOREST | IL |
| 2026-03-02 | 464-286-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FOREST | IL |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.