NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · 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, all time — NPA 620
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-08-02 | 620-677-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PLAINS | KS |
| 2024-08-02 | 620-679-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TREECE | KS |
| 2024-08-02 | 620-720-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PAWNEEROCK | KS |
| 2024-08-02 | 620-733-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PROTECTION | KS |
| 2024-08-02 | 620-788-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MOLINE | KS |
| 2024-08-02 | 620-828-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PEABODY | KS |
| 2024-08-02 | 620-977-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MINNEOLA | KS |
| 2024-08-02 | 620-997-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SEVERY | KS |
| 2024-08-02 | 620-998-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NICKERSON | KS |
| 2024-07-30 | 620-303-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HARTFORD | KS |
| 2024-07-30 | 620-529-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ST PAUL | KS |
| 2024-07-30 | 620-540-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOWARD | KS |
| 2024-07-30 | 620-571-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MEADE | KS |
| 2024-07-30 | 620-740-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HARPER | KS |
| 2024-07-30 | 620-844-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HAMILTON | KS |
| 2024-07-25 | 620-250-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CANTON | KS |
| 2024-07-25 | 620-403-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CANEY | KS |
| 2024-07-25 | 620-494-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BURNS | KS |
| 2024-07-25 | 620-552-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CHASE | KS |
| 2024-07-25 | 620-722-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FLORENCE | KS |
| 2024-07-25 | 620-758-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CEDAR VALE | KS |
| 2024-07-25 | 620-882-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | COLDWATER | KS |
| 2024-07-25 | 620-932-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ERIE | KS |
| 2024-07-25 | 620-944-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FOWLER | KS |
| 2024-07-18 | 620-900-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BUCKLIN | KS |
| 2013-10-10 | 620-236-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CHETOPA | KS |
| 2013-10-10 | 620-414-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CHERRYVALE | KS |
| 2013-10-10 | 620-473-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HUMBOLDT | KS |
| 2013-10-10 | 620-625-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | YATES CTR | KS |
| 2013-10-10 | 620-710-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SEDAN | KS |
| 2013-01-28 | 620-510-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SUBLETTE | KS |
| 2012-12-12 | 620-213-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MEDICNLODG | KS |
| 2012-12-12 | 620-233-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | KINSLEY | KS |
| 2012-12-12 | 620-264-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LARNED | KS |
| 2012-12-12 | 620-268-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | STAFFORD | KS |
| 2012-12-12 | 620-363-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | IOLA | KS |
| 2012-12-12 | 620-402-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WINFIELD | KS |
| 2012-12-12 | 620-440-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WELLINGTON | KS |
| 2012-12-12 | 620-508-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PRATT | KS |
| 2012-12-12 | 620-553-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | KINGMAN | KS |
| 2012-12-12 | 620-894-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LYONS | KS |
| 2012-12-12 | 620-909-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SCOTT CITY | KS |
| 2012-12-12 | 620-920-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NEODESHA | KS |
| 2012-12-11 | 620-404-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PITTSBURG | KS |
| 2012-12-11 | 620-506-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ARKANSASCY | KS |
| 2012-12-11 | 620-604-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LIBERAL | KS |
| 2012-12-11 | 620-714-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | INDEPNDNCE | KS |
| 2012-12-11 | 620-797-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GREAT BEND | KS |
| 2012-12-11 | 620-860-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HUTCHINSON | KS |
| 2011-10-28 | 620-273-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | COTONWDFLS | KS |
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.