Resporgs.com

The Pool

Every toll-free number in North America lives somewhere on a spectrum from working (in active use) to spare (waiting to be assigned). This is the inventory side of the industry — what's left, what's churning, and how fast the pool is filling up.

86.97%
of all toll-free numbers in use
week ending 2026-04-25
48,484,273
numbers in use
7,265,814
spare pool
182,653
numbers retired last week
104,271
numbers reserved last week
0
weeks since spare pool last grew

Per-NPA fill levels — today

The 800 prefix has been fully assigned since 1996. 833, the newest, is the only NPA with meaningful headroom left. Click any card for the full status decomposition over time.

800
100.0%
7,870,087 in use
0 spare
888
99.0%
7,898,042 in use
81,958 spare
877
86.0%
6,861,744 in use
1,118,256 spare
866
92.5%
7,380,314 in use
599,686 spare
855
80.2%
6,401,744 in use
1,578,256 spare
844
67.1%
5,356,092 in use
2,623,908 spare
833
84.2%
6,716,250 in use
1,263,750 spare

Spare pool by NPA, over time

A 9-year view of the world's toll-free spare pool, split by NPA. Watch 833 (the newest prefix) shrink from a giant green wedge of unused inventory in 2017 down to almost nothing today. The spare pool is what you're drawing from when you ask for a new toll-free number.

5.0M10.0M800 (spare)888 (spare)877 (spare)866 (spare)855 (spare)844 (spare)833 (spare)2017-10-282023-07-152026-04-25Total spare: 7.3M
  • 800 (spare)0
  • 888 (spare)82K
  • 877 (spare)1.1M
  • 866 (spare)600K
  • 855 (spare)1.6M
  • 844 (spare)2.6M
  • 833 (spare)1.3M

Weekly net pool growth — last 2 years

Each bar = one week. Green up = the spare pool grew that week (more numbers got freed than assigned). Red down = the spare pool shrank (more numbers were assigned than freed). The pool's been losing ground steadily — the disconnect tide hasn't been keeping up with new assignments.

-600K-400K-200K0+200K2024-05-04: +29K2024-05-11: +24K2024-05-18: -4K2024-05-25: -58K2024-06-01: -14K2024-06-08: +92K2024-06-15: +4K2024-06-22: +107K2024-06-29: -33K2024-07-06: +150K2024-07-13: +39K2024-07-20: -7K2024-07-27: +3K2024-08-03: +47K2024-08-10: +172K2024-08-17: +85K2024-08-24: -140K2024-08-31: -14K2024-09-07: +37K2024-09-14: +95K2024-09-21: +105K2024-09-28: -2K2024-10-05: +1K2024-10-12: -92K2024-10-19: +119K2024-10-26: +18K2024-11-02: +45K2024-11-09: +50K2024-11-16: +133K2024-11-23: +8K2024-11-30: +7K2024-12-07: -122K2024-12-14: +21K2024-12-21: +98K2024-12-28: -117K2025-01-04: +19K2025-01-11: +25K2025-01-18: +22K2025-01-25: +40K2025-02-01: +53K2025-02-08: +45K2025-02-15: +55K2025-02-22: +11K2025-03-01: -109K2025-03-08: +6K2025-03-15: -416K2025-03-22: -145K2025-03-29: +58K2025-04-05: +60K2025-04-12: +60K2025-04-19: +103K2025-04-26: -23K2025-05-03: +79K2025-05-10: +66K2025-05-17: +85K2025-05-24: -42K2025-05-31: +28K2025-06-07: +169K2025-06-14: +35K2025-06-21: -5K2025-06-28: -58K2025-07-05: +88K2025-07-12: +9K2025-07-19: +51K2025-07-26: +37K2025-08-02: +83K2025-08-09: +101K2025-08-16: +19K2025-08-23: -24K2025-08-30: +23K2025-09-06: -108K2025-09-13: +66K2025-09-20: +62K2025-09-27: +48K2025-10-04: -176K2025-10-11: +95K2025-10-18: +233K2025-10-25: +208K2025-11-01: +167K2025-11-08: +239K2025-11-15: +87K2025-11-22: -227K2025-11-29: -108K2025-12-06: +173K2025-12-13: +119K2025-12-20: +189K2025-12-27: +95K2026-01-03: +27K2026-01-10: +65K2026-01-17: +98K2026-01-24: +189K2026-01-31: +194K2026-02-07: +83K2026-02-14: +79K2026-02-21: +194K2026-02-28: +203K2026-03-07: +14K2026-03-14: +237K2026-03-21: -75K2026-03-28: +277K2026-04-04: -5052026-04-11: +27K2026-04-18: +96K2026-04-25: -78K2024-05-042025-05-032026-04-25
  • Spare pool grew that week
  • Spare pool shrank that week

How long until we run out?

Somos publishes six different exhaust-date forecasts every week, each based on a different historical window (1, 2, 3, 5, 7, and 9 years). They wildly disagree. The 12-month forecast says we have 2 years left. The 9-year forecast says decades. See how predictions have evolved →

Where this data comes from

Somos publishes a weekly Number Administration Summary every Monday morning, covering the previous Saturday's inventory. We've been archiving these reports since 2017. This section is rebuilt from the parsed PDFs every time a new report arrives. More on how the data is sourced →