NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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, all time — NPA 240
METROPCS, INC. 207
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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2022-12-01 240-973-9XXX 9000–9999Assigned METROPCS, INC. 5562 WSNGTNZN12 MD
2022-10-28 240-940-6XXX 6000–6999Assigned METROPCS, INC. 5562 WSHNGTNZN4 MD
2022-10-21 240-799-5XXX 5000–5999Assigned METROPCS, INC. 5562 BRANDYWINE MD
2022-10-19 240-807-6XXX 6000–6999Assigned METROPCS, INC. 5562 CUMBERLAND MD
2022-10-19 240-967-9XXX 9000–9999Assigned METROPCS, INC. 5562 CUMBERLAND MD
2022-10-03 240-910-7XXX 7000–7999Assigned METROPCS, INC. 5562 FREDERICK MD
2022-09-29 240-935-5XXX 5000–5999Assigned METROPCS, INC. 5562 LAUREL236 MD
2022-09-25 240-955-8XXX 8000–8999Assigned METROPCS, INC. 5562 LA PLATA MD
2022-01-11 240-909-9XXX 9000–9999Assigned METROPCS, INC. 5562 LAUREL236 MD
2022-01-10 240-905-9XXX 9000–9999Assigned METROPCS, INC. 5562 BRANDYWINE MD
2021-12-28 240-868-5XXX 5000–5999Assigned METROPCS, INC. 5562 WSNGTNZN12 MD
2021-11-23 240-689-7XXX 7000–7999Assigned METROPCS, INC. 5562 WSNG236Z15 MD
2021-11-23 240-879-0XXX 0000–0999Assigned METROPCS, INC. 5562 WSHNGTNZN4 MD
2021-11-23 240-886-0XXX 0000–0999Assigned METROPCS, INC. 5562 WSHNGTNZN4 MD
2021-11-23 240-897-1XXX 1000–1999Assigned METROPCS, INC. 5562 WSNGTNZN16 MD
2021-11-23 240-946-4XXX 4000–4999Assigned METROPCS, INC. 5562 WSNG236Z14 MD
2021-10-07 240-787-9XXX 9000–9999Assigned METROPCS, INC. 5562 BRANDYWINE MD
2021-10-07 240-789-1XXX 1000–1999Assigned METROPCS, INC. 5562 WSNGTNZN10 MD
2021-10-07 240-791-3XXX 3000–3999Assigned METROPCS, INC. 5562 WSHNGTNZN4 MD
2021-10-07 240-792-3XXX 3000–3999Assigned METROPCS, INC. 5562 FREDERICK MD
2021-10-07 240-868-2XXX 2000–2999Assigned METROPCS, INC. 5562 WSNGTNZN12 MD
2021-10-04 240-792-0XXX 0000–0999Assigned METROPCS, INC. 5562 FREDERICK MD
2021-10-04 240-799-3XXX 3000–3999Assigned METROPCS, INC. 5562 BRANDYWINE MD
2021-09-24 240-787-1XXX 1000–1999Assigned METROPCS, INC. 5562 BRANDYWINE MD
2021-09-24 240-798-0XXX 0000–0999Assigned METROPCS, INC. 5562 GAITHERSBG MD
2021-09-08 240-807-1XXX 1000–1999Assigned METROPCS, INC. 5562 CUMBERLAND MD
2021-05-04 240-349-8XXX 8000–8999Assigned METROPCS, INC. 5562 LA PLATA MD
2021-04-16 240-730-5XXX 5000–5999Assigned METROPCS, INC. 5562 HAGERSTOWN MD
2021-03-29 240-741-1XXX 1000–1999Assigned METROPCS, INC. 5562 FREDERICK MD
2021-02-16 240-730-0XXX 0000–0999Assigned METROPCS, INC. 5562 HAGERSTOWN MD
2020-12-07 240-295-8XXX 8000–8999Assigned METROPCS, INC. 5562 LAUREL236 MD
2020-12-07 240-473-8XXX 8000–8999Assigned METROPCS, INC. 5562 WSNG236Z13 MD
2020-12-07 240-739-4XXX 4000–4999Assigned METROPCS, INC. 5562 FREDERICK MD
2020-10-01 240-656-7XXX 7000–7999Assigned METROPCS, INC. 5562 FREDERICK MD
2020-08-13 240-709-7XXX 7000–7999Assigned METROPCS, INC. 5562 LAUREL236 MD
2020-06-16 240-656-4XXX 4000–4999Assigned METROPCS, INC. 5562 FREDERICK MD
2020-03-09 240-790-4XXX 4000–4999Assigned METROPCS, INC. 5562 WSNG236Z13 MD
2019-12-31 240-681-0XXX 0000–0999Assigned METROPCS, INC. 5562 BRANDYWINE MD
2019-12-31 240-709-0XXX 0000–0999Assigned METROPCS, INC. 5562 LAUREL236 MD
2019-11-05 240-658-5XXX 5000–5999Assigned METROPCS, INC. 5562 GAITHERSBG MD
2019-09-12 240-664-3XXX 3000–3999Assigned METROPCS, INC. 5562 CUMBERLAND MD
2019-07-10 240-590-4XXX 4000–4999Assigned METROPCS, INC. 5562 WSNGTNZN12 MD
2019-06-29 240-591-2XXX 2000–2999Assigned METROPCS, INC. 5562 HAGERSTOWN MD
2019-06-20 240-664-1XXX 1000–1999Assigned METROPCS, INC. 5562 CUMBERLAND MD
2019-06-17 240-840-7XXX 7000–7999Assigned METROPCS, INC. 5562 FREDERICK MD
2019-03-06 240-588-9XXX 9000–9999Assigned METROPCS, INC. 5562 GRANTSVL MD
2018-12-07 240-584-8XXX 8000–8999Assigned METROPCS, INC. 5562 LAUREL236 MD
2018-12-07 240-787-2XXX 2000–2999Assigned METROPCS, INC. 5562 BRANDYWINE MD
2018-09-19 240-860-5XXX 5000–5999Assigned METROPCS, INC. 5562 CUMBERLAND MD
2018-09-11 240-860-4XXX 4000–4999Assigned METROPCS, INC. 5562 CUMBERLAND MD

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.