NumberResearchThousands-blocks in 253-881
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026
The ten 1,000-number thousand-blocks inside prefix 253-881 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 253 blocks
Most active assignees, all time — NPA 253
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
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 253-881-0XXX | 0000–0999 | Reserved | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA | 7274 | PUYALLUP | WA |
| 2006-12-28 | 253-881-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | PUYALLUP | WA |
| 2020-06-23 | 253-881-2XXX | 2000–2999 | Assigned | ELTOPIA COMMUNICATIONS, LLC - WA | 663D | PUYALLUP | WA |
| 2006-11-16 | 253-881-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA | 7274 | PUYALLUP | WA |
| — | 253-881-4XXX | 4000–4999 | Reserved | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA | 7274 | PUYALLUP | WA |
| 2016-01-14 | 253-881-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - WA | 006F | PUYALLUP | WA |
| 2016-03-08 | 253-881-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - WA | 006F | PUYALLUP | WA |
| 2016-03-08 | 253-881-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - WA | 006F | PUYALLUP | WA |
| 2020-10-20 | 253-881-8XXX | 8000–8999 | Assigned | ONVOY, LLC - WA | 483E | PUYALLUP | WA |
| 2016-11-01 | 253-881-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PUYALLUP | 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.