NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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

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, last 30 days — NPA 253
EXIANT COMMUNICATIONS LLC 2
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 thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2020-10-30 253-780-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E GRAHAM WA
2020-10-30 253-780-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E GRAHAM WA
2020-10-26 253-317-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E TACOMA WA
2020-10-26 253-342-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E TACOMA WA
2020-10-26 253-342-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E TACOMA WA
2020-10-25 253-262-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F GRAHAM WA
2020-10-25 253-342-4XXX 4000–4999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F TACOMA WA
2020-10-22 253-523-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E TACOMAWVLY WA
2020-10-22 253-523-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E TACOMAWVLY WA
2020-10-22 253-553-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E AUBURN WA
2020-10-22 253-553-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E AUBURN WA
2020-10-21 253-480-0XXX 0000–0999Assigned METROPCS, INC. 5562 KENT WA
2020-10-21 253-480-1XXX 1000–1999Assigned METROPCS, INC. 5562 KENT WA
2020-10-20 253-361-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TACOMAWVLY WA
2020-10-20 253-361-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TACOMAWVLY WA
2020-10-20 253-368-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2020-10-20 253-368-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2020-10-20 253-382-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TACOMA WA
2020-10-20 253-478-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E KENT WA
2020-10-20 253-766-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E KENT WA
2020-10-20 253-881-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E PUYALLUP WA
2020-10-20 253-900-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E GIG HARBOR WA
2020-10-20 253-900-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E GIG HARBOR WA
2020-10-08 253-780-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F GRAHAM WA
2020-10-06 253-480-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J KENT WA
2020-10-06 253-480-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J KENT WA
2020-10-06 253-487-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J KENT WA
2020-10-05 253-338-5XXX 5000–5999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F AUBURN WA
2020-09-30 253-352-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J TACOMA WA
2020-09-30 253-352-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J TACOMA WA
2020-09-30 253-352-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J TACOMA WA
2020-09-30 253-352-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J TACOMA WA
2020-09-30 253-352-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J TACOMA WA
2020-09-30 253-352-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J TACOMA WA
2020-09-22 253-352-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E TACOMA WA
2020-09-22 253-352-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E TACOMA WA
2020-09-22 253-352-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E TACOMA WA
2020-09-22 253-352-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E TACOMA WA
2020-09-18 253-693-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F PUYALLUP WA
2020-09-14 253-251-9XXX 9000–9999Assigned VONAGE AMERICA LLC 197D PUYALLUP WA
2020-09-14 253-338-3XXX 3000–3999Assigned VONAGE AMERICA LLC 197D AUBURN WA
2020-09-14 253-338-4XXX 4000–4999Assigned VONAGE AMERICA LLC 197D AUBURN WA
2020-09-14 253-693-1XXX 1000–1999Assigned VONAGE AMERICA LLC 197D PUYALLUP WA
2020-09-14 253-785-5XXX 5000–5999Assigned VONAGE AMERICA LLC 197D DES MOINES WA
2020-09-14 253-785-7XXX 7000–7999Assigned VONAGE AMERICA LLC 197D DES MOINES WA
2020-09-03 253-319-7XXX 7000–7999Assigned VONAGE AMERICA LLC 197D TACOMA WA
2020-09-03 253-319-9XXX 9000–9999Assigned VONAGE AMERICA LLC 197D TACOMA WA
2020-09-03 253-487-1XXX 1000–1999Assigned VONAGE AMERICA LLC 197D KENT WA
2020-09-03 253-487-2XXX 2000–2999Assigned VONAGE AMERICA LLC 197D KENT WA
2020-08-27 253-338-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 AUBURN WA

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.