NumberResearchRecent thousands-block assignments
11 blocks assigned in May 2026 · from the daily NANPA thousands-block report, 09/20/2026
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, May 2026 — NPA 223
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-05-22 | 223-747-5XXX | 5000–5999 | Assigned | PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA | 967E | EASTBERLIN | PA |
| 2026-05-15 | 223-383-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7309 | HARISBGZN1 | PA |
| 2026-05-14 | 223-233-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SPRING GRV | PA |
| 2026-05-14 | 223-275-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WRIGHTSVL | PA |
| 2026-05-14 | 223-786-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | STEWARTSTN | PA |
| 2026-05-13 | 223-393-3XXX | 3000–3999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | LEBANON | PA |
| 2026-05-11 | 223-387-6XXX | 6000–6999 | Assigned | HD CARRIER LLC | 321J | LANCASTER | PA |
| 2026-05-11 | 223-387-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | LANCASTER | PA |
| 2026-05-06 | 223-230-4XXX | 4000–4999 | Assigned | ONVOY, LLC - PA | 547E | NEW OXFORD | PA |
| 2026-05-06 | 223-350-4XXX | 4000–4999 | Assigned | ONVOY, LLC - PA | 547E | GETTYSBURG | PA |
| 2026-05-06 | 223-391-1XXX | 1000–1999 | Assigned | ONVOY, LLC - PA | 547E | EPHRATA | PA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.