Recent prefix assignments

341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

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

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, last 30 days

8X8, INC. 43

NEW CINGULAR WIRELESS PCS, LLC - DC 26

Rogers Communications Canada Inc. (Wireless) 23

NEW CINGULAR WIRELESS PCS, LLC - IL 22

ONVOY, LLC - CA 21

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

Recent NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
2021-03-30	380-895	0–9 XXXall 10 · 3 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	COLUMBUS	OH
2021-03-30	440-690	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - OH	464C	ELYRIA	OH
2021-03-30	561-648	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	BOCA RATON	FL
2021-03-30	585-559	0–9 XXXall 10 · 4 holders which blocks →	IP HORIZON LLC	515J	ROCHESTER	NY
2021-03-30	607-380	0–9 XXXall 10 · 6 holders which blocks →	HD CARRIER LLC	321J	CAMPBELL	NY
2021-03-30	623-270	0–9 XXXall 10 · 3 holders which blocks →	COMCAST IP PHONE, LLC	318J	PHOENIX	AZ
2021-03-30	680-655	0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	CONSTANTIA	NY
2021-03-30	680-681	0XXX1XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	ADAMS	NY
2021-03-30	680-770	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	CARTHAGE	NY
2021-03-30	689-232	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	EASTORANGE	FL
2021-03-30	712-637	0–9 XXXwhole prefix which blocks →	GREAT LAKES COMMUNICATION CORP. - IA	345D	LAKE PARK	IA
2021-03-30	762-363	0XXX1XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - GA	983E	GIBSON	GA
2021-03-30	769-465	0XXX3XXX8XXX · 3 holders which blocks →	FRACTEL, LLC	965H	MCLAIN	MS
2021-03-30	769-766	0XXX1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	BEAUMONT	MS
2021-03-30	779-410	0XXX1XXX4XXX8XXX · 4 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	STOCKTON	IL
2021-03-30	838-668	0XXX1XXX2XXX3XXX6XXX7XXX9XXX · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	CAMBRIDGE	NY
2021-03-30	838-733	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	JONESVILLE	NY
2021-03-30	838-848	0XXX2XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	FORT ANN	NY
2021-03-30	838-858	0XXX1XXX5XXX8XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	HAGUE	NY
2021-03-30	838-868	0XXX1XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	HAMPTON	NY
2021-03-30	845-543	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	CARMEL	NY
2021-03-30	872-283	0–9 XXXall 10 · 7 holders which blocks →	ONVOY SPECTRUM, LLC	624H	CHICGOZN07	IL
2021-03-30	901-599	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TN	124F	LAGRANGE	TN
2021-03-30	985-341	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	HOUMA	LA
2021-03-29	208-849	0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID	6565	MCCALL	ID
2021-03-29	229-895	0–9 XXXall 10 · 3 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	ALBANY	GA
2021-03-29	252-667	0XXX1XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	FOUNTAIN	NC
2021-03-29	252-688	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	FRACTEL, LLC	965H	LITTLETON	NC
2021-03-29	252-786	0XXX1XXX2XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	FRACTEL, LLC	965H	AHOSKIE	NC
2021-03-29	252-842	0XXX1XXX2XXX3XXX5XXX8XXX · 4 holders which blocks →	FRACTEL, LLC	965H	AULANDER	NC
2021-03-29	581-897	not yet reported which blocks →	Fibernetics Corporation	464D	Valcartier	—
2021-03-29	581-901	not yet reported which blocks →	Fibernetics Corporation	464D	Boischatel	—
2021-03-29	581-902	not yet reported which blocks →	Fibernetics Corporation	464D	Ste-Anne-de-Beaupre	—
2021-03-29	581-903	not yet reported which blocks →	Fibernetics Corporation	464D	Ste-Brigitte-de-Laval	—
2021-03-29	581-904	not yet reported which blocks →	Fibernetics Corporation	464D	Ste-Petronille	—
2021-03-29	581-905	not yet reported which blocks →	Fibernetics Corporation	464D	St-Fereol	—
2021-03-29	581-906	not yet reported which blocks →	Fibernetics Corporation	464D	St-Jean-ile-d'Orleans	—
2021-03-29	581-907	not yet reported which blocks →	Fibernetics Corporation	464D	St-Tite-des-Caps	—
2021-03-29	657-538	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	SILVERADO	CA
2021-03-29	743-740	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - NC	638E	MOUNT AIRY	NC
2021-03-29	743-895	0–9 XXXall 10 · 4 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	GREENSBORO	NC
2021-03-29	762-895	0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	AUGUSTA	GA
2021-03-29	828-810	0XXX1XXX9XXX · 3 holders which blocks →	ONVOY, LLC - NC	638E	CATAWBA	NC
2021-03-29	912-891	0–9 XXXall 10 · 2 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	SAVANNAH	GA
2021-03-29	980-367	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	METROPCS, INC.	5562	SALISBURY	NC
2021-03-29	980-895	0–9 XXXall 10 · 3 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	CHARLOTTE	NC
2021-03-29	984-895	0–9 XXXall 10 · 2 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	RALEIGH	NC
2021-03-26	208-831	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	BURLEY	ID
2021-03-26	208-973	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	IDAHOFALLS	ID
2021-03-26	217-990	0XXX2XXX3XXX4XXX which blocks →	ONVOY, LLC	224C	ARCOLA	IL

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.