Recent prefix assignments

1 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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 — NPA 806

8X8, INC. 1

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
—	806-375	0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	SOUTHWESTERN BELL	9533	ALLISON	TX
—	806-376	0XXX3XXX which blocks →	SOUTHWESTERN BELL	9533	AMARILLO	TX
—	806-377	not yet reported which blocks →	XIT RURAL TEL. COOP., INC.	2170	BUNKERHILL	TX
—	806-378	not yet reported which blocks →	SOUTHWESTERN BELL	9533	AMARILLO	TX
—	806-379	not yet reported which blocks →	SOUTHWESTERN BELL	9533	AMARILLO	TX
—	806-381	3XXX which blocks →	SOUTHWESTERN BELL	9533	AMARILLO	TX
—	806-382	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7148	AMARILLO	TX
—	806-383	5XXX which blocks →	SOUTHWESTERN BELL	9533	AMARILLO	TX
—	806-384	not yet reported which blocks →	XIT RURAL TEL. COOP., INC.	2170	COLDWATER	TX
—	806-385	not yet reported which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	LITTLEFLD	TX
—	806-387	not yet reported which blocks →	POKA LAMBRO TELEPHONE COMPANY	8661	SEAGRAVES	TX
—	806-389	not yet reported which blocks →	E.N.M.R. TEL COOP	2262	PLEASANTHL	TX
—	806-390	0XXX6XXX8XXX9XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	STRATFORD	TX
—	806-392	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7148	LUBBOCK	TX
—	806-396	1XXX6XXX · 2 holders which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	STRATFORD	TX
—	806-402	0–9 XXXall 10 · 5 holders which blocks →	CEBRIDGE TELECOM TX , L.P. - TX	318C	FLOYDADA	TX
—	806-403	0–9 XXXall 10 · 4 holders which blocks →	COMCAST IP PHONE, LLC	318J	LUBBOCK	TX
—	806-404	0XXX1XXX2XXX3XXX4XXX6XXX8XXX9XXX · 4 holders which blocks →	CEBRIDGE TELECOM TX , L.P. - TX	318C	SHALLOWTR	TX
—	806-408	none assigned yet which blocks →	CEBRIDGE TELECOM TX , L.P. - TX	318C	WOODROW	TX
—	806-411	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	TX
—	806-413	4XXX which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	FARWELL	TX
—	806-418	0–9 XXXall 10 · 4 holders which blocks →	CEBRIDGE TELECOM TX , L.P. - TX	318C	AMARILLO	TX
—	806-423	not yet reported which blocks →	CAP ROCK TELEPHONE COOPERATIVE	2046	TURKEY	TX
—	806-426	none assigned yet which blocks →	VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW	1181	WILDORADO	TX
—	806-428	not yet reported which blocks →	POKA-LAMBRO TEL. COOP., INC.	2131	ODONNELL	TX
—	806-433	none assigned yet which blocks →	METROPCS, INC.	5562	AMARILLO	TX
—	806-434	not yet reported which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	PERRYTON	TX
—	806-435	not yet reported which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	PERRYTON	TX
—	806-438	none assigned yet which blocks →	T-MOBILE USA, INC.	6529	LUBBOCK	TX
—	806-439	not yet reported which blocks →	POKA-LAMBRO TEL. COOP., INC.	2131	ATEN	TX
—	806-441	none assigned yet which blocks →	METROPCS, INC.	5562	LUBBOCK	TX
—	806-443	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	AMARILLO	TX
—	806-447	none assigned yet which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	WELLINGTON	TX
—	806-450	not yet reported which blocks →	ONVOY, LLC - TX	903C	ALLISON	TX
—	806-451	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	LUBBOCK	TX
—	806-454	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	CROSBYTON	TX
—	806-455	not yet reported which blocks →	CAP ROCK TELEPHONE COOPERATIVE	2046	QUITAQUE	TX
—	806-456	not yet reported which blocks →	TEXAS WINDSTREAM, LLC	2153	PLAINS	TX
—	806-457	1XXX8XXX9XXX · 3 holders which blocks →	SOUTHWESTERN BELL	9533	AMARILLO	TX
—	806-459	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FRIONA	TX
—	806-462	not yet reported which blocks →	POKA-LAMBRO TEL. COOP., INC.	2131	PATRICIA	TX
—	806-463	0XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks →	SOUTHWESTERN BELL	9533	AMARILLO	TX
—	806-465	not yet reported which blocks →	POKA-LAMBRO TEL. COOP., INC.	2131	WEST LAKES	TX
—	806-467	not yet reported which blocks →	SOUTHWESTERN BELL	9533	AMARILLO	TX
—	806-468	not yet reported which blocks →	SOUTHWESTERN BELL	9533	AMARILLO	TX
—	806-469	not yet reported which blocks →	CAP ROCK TELEPHONE COOPERATIVE	2046	FLOMOT	TX
—	806-470	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	LUBBOCK	TX
—	806-472	4XXX8XXX · 2 holders which blocks →	SOUTHWESTERN BELL	9533	LUBBOCK	TX
—	806-473	5XXX7XXX8XXX9XXX · 2 holders which blocks →	SOUTHWESTERN BELL	9533	LUBBOCK	TX
—	806-474	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks →	SOUTHWESTERN BELL	9533	LUBBOCK	TX

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.