NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · 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, all time — NPA 620
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2021-08-27 | 620-281-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | OSWEGO | KS |
| 2021-03-18 | 620-882-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | COLDWATER | KS |
| 2020-08-10 | 620-670-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | PITTSBURG | KS |
| 2017-04-17 | 620-531-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | DURHAM | KS |
| 2017-02-15 | 620-670-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | PITTSBURG | KS |
| 2016-11-01 | 620-888-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | HUTCHINSON | KS |
| 2016-08-01 | 620-304-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | BAXTER SPG | KS |
| 2015-10-01 | 620-860-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | HUTCHINSON | KS |
| 2015-07-22 | 620-305-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | CHANUTE | KS |
| 2015-02-11 | 620-504-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | MCPHERSON | KS |
| 2014-07-25 | 620-682-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | DODGE CITY | KS |
| 2014-05-09 | 620-563-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | PLAINS | KS |
| 2014-05-09 | 620-566-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | ELLINWOOD | KS |
| 2014-05-09 | 620-646-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | FOWLER | KS |
| 2014-05-09 | 620-723-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | GREENSBURG | KS |
| 2014-05-09 | 620-873-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | MEADE | KS |
| 2014-05-09 | 620-885-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | MINNEOLA | KS |
| 2014-04-10 | 620-291-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | BENEDICT | KS |
| 2014-04-10 | 620-302-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | BUFFALO | KS |
| 2014-04-10 | 620-445-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | LAFONTAINE | KS |
| 2014-04-10 | 620-522-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | THAYER | KS |
| 2014-04-02 | 620-256-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | LEBO | KS |
| 2014-04-02 | 620-455-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | OXFORD | KS |
| 2014-04-02 | 620-466-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | HAVEN | KS |
| 2014-04-02 | 620-678-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | HAMILTON | KS |
| 2014-04-02 | 620-726-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | BURNS | KS |
| 2014-04-02 | 620-784-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | ALTAMONT | KS |
| 2014-04-02 | 620-837-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | WALTON | KS |
| 2014-03-13 | 620-458-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | HUDSON | KS |
| 2014-03-07 | 620-483-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | LEHIGH | KS |
| 2014-03-03 | 620-489-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | WINDOM | KS |
| 2014-03-03 | 620-834-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | CONWAY | KS |
| 2014-02-25 | 620-568-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | ALTOONA | KS |
| 2014-02-25 | 620-596-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | LANGDON | KS |
| 2014-02-24 | 620-670-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | PITTSBURG | KS |
| 2014-02-20 | 620-468-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | PIQUA | KS |
| 2014-02-20 | 620-658-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | FALL RIVER | KS |
| 2014-02-20 | 620-995-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | BELPRE | KS |
| 2014-02-18 | 620-237-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | MORAN | KS |
| 2014-02-18 | 620-286-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | ABBYVLPLVN | KS |
| 2014-02-18 | 620-328-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | MOUND VLY | KS |
| 2014-02-18 | 620-439-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | KINCAID | KS |
| 2014-02-18 | 620-479-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | SCAMMON | KS |
| 2014-02-18 | 620-637-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | TORONTO | KS |
| 2014-02-18 | 620-656-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | PRESTON | KS |
| 2014-02-18 | 620-692-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | COYVILLE | KS |
| 2014-02-18 | 620-836-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | GRIDLEY | KS |
| 2014-02-18 | 620-964-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | LEROY | KS |
| 2014-02-13 | 620-233-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | KINSLEY | KS |
| 2014-02-13 | 620-622-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KS | 2240 | PROTECTION | KS |
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.