AT&T Internet speed test
Free AT&T speed test. Whether you're on AT&T Fiber or legacy DSL, see what fraction of your advertised plan is actually reaching your device.
Typical AT&T Internet delivery
~92% of advertised speed
AT&T Fiber typically delivers very close to advertised speeds; AT&T DSL/copper plans are often well below.
AT&T Internet plans & advertised speeds
| Plan | Down (Mbps) | Up (Mbps) |
|---|---|---|
| Internet 100 | 100 | 20 |
| Internet 300 (Fiber) | 300 | 300 |
| Internet 500 (Fiber) | 500 | 500 |
| Internet 1000 (Fiber) | 940 | 880 |
| Internet 5000 (Fiber) | 4700 | 4700 |
ISPs advertise “up to” speeds. Your real-world result depends on line type, congestion, modem and Wi-Fi. Use NetStartr to find out what fraction you\'re getting.
How to test your AT&T Internet connection accurately
- Plug a laptop or desktop into your router with Ethernet (avoid Wi-Fi for the headline number).
- Pause cloud syncs and downloads.
- Open NetStartr and click Start Test.
- Pick your AT&T Internet plan from the “Am I getting what I pay for?” selector and read off the percentage.
- Re-test at peak (8-10 PM) and off-peak (8 AM) to spot congestion.
What to do if AT&T Internet underdelivers
- Reboot your modem & router; many ISP modems re-provision on boot.
- If you\'re under 70% of plan three days running, contact support and reference the times you tested.
- Ask for a free modem swap (cable plans) or a tech visit.
- If unresolved after a few weeks, request a partial bill credit.