NumberResearch Membership · Data 2026-04

Recent prefix assignments

380 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 2026-04

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

Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.

Most active assignees, last 30 days
8X8, INC. 38
ONVOY, LLC - CA 37
NEW CINGULAR WIRELESS PCS, LLC - IL 33
NEW CINGULAR WIRELESS PCS, LLC - DC 30
ONVOY, LLC - TX 18
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 NPA-NXX prefix assignments
AssignedNPA-NXXAssigneeOCNRate centerState
206-930 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
206-931 T-MOBILE USA, INC. 6529 SEATTLE WA
206-932 QWEST CORPORATION 9638 SEATTLE WA
206-933 QWEST CORPORATION 9638 SEATTLE WA
206-934 LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
206-935 QWEST CORPORATION 9638 SEATTLE WA
206-937 QWEST CORPORATION 9638 SEATTLE WA
206-938 QWEST CORPORATION 9638 SEATTLE WA
206-940 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
206-941 T-MOBILE USA, INC. 6529 SEATTLE WA
206-947 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
206-948 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
206-949 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
206-950 WA
206-953 NEW CINGULAR WIRELESS PCS, LLC 6010 SEATTLE WA
206-954 NEW CINGULAR WIRELESS PCS, LLC 6010 SEATTLE WA
206-955 SPOK, INC. 6630 SEATTLE WA
206-956 QWEST CORPORATION 9638 SEATTLE WA
206-957 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
206-958 WA
206-959 WA
206-962 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
206-963 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
206-965 QWEST CORPORATION 9638 SEATTLE WA
206-969 QWEST CORPORATION 9638 SEATTLE WA
206-971 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
206-972 NEW CINGULAR WIRELESS PCS, LLC 6010 SEATTLE WA
206-973 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
206-976 WA
206-977 SPOK, INC. 6630 SEATTLE WA
206-978 SPOK, INC. 6630 SEATTLE WA
206-979 NEW CINGULAR WIRELESS PCS, LLC 6010 SEATTLE WA
206-980 SPOK, INC. 6630 SEATTLE WA
206-982 QWEST CORPORATION 9638 SEATTLE WA
206-984 ONVOY, LLC - WA 483E RICHMNDBCH WA
206-985 QWEST CORPORATION 9638 SEATTLE WA
206-986 SPOK, INC. 6630 SEATTLE WA
206-988 QWEST CORPORATION 9638 SEATTLE WA
206-989 SPOK, INC. 6630 SEATTLE WA
206-991 QWEST CORPORATION 9638 SEATTLE WA
206-992 NEW CINGULAR WIRELESS PCS, LLC 6010 SEATTLE WA
206-993 QWEST CORPORATION 9638 SEATTLE WA
206-994 SPOK, INC. 6630 SEATTLE WA
206-995 QWEST CORPORATION 9638 SEATTLE WA
206-996 SPOK, INC. 6630 SEATTLE WA
206-997 QWEST CORPORATION 9638 SEATTLE WA
206-998 QWEST CORPORATION 9638 SEATTLE WA
206-999 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
207-201 CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 XXXXXXXXXX ME
207-202 CONSOLIDATED COMM OF NO. NEW ENGLAND-ME 5111 XXXXXXXXXX ME

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.