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1Anon BlackHat Board / Residential & 4G/5G Mobile Rotate APIs / 📱 [AT COMMANDS] Sub-2-Second 4G/5G IP Rotation via `AT+CFUN=0/1` & PDP Context Reset (Huawei / Quectel)
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Residential & 4G/5G Mobile Rotate APIs PINNED STICKY VERIFIED METHOD Posted on Oct 04, 2026 at 12:10 PM
2 replies 4,138 views

📱 [AT COMMANDS] Sub-2-Second 4G/5G IP Rotation via `AT+CFUN=0/1` & PDP Context Reset (Huawei / Quectel)

PI
pi_cluster_op OP / ELITE MEMBER
Rebooting a USB 4G modem takes 35–45 seconds, which kills scraping throughput. Instead of rebooting the dongle, toggle the PDP context or radio state via serial AT commands or HiLink API to get a brand-new CGNAT carrier IP in **1.8 seconds**: ```bash # Detach and re-attach Packet Domain service on Quectel RM500Q / EC25 echo -e "AT+CGACT=0,1\r" > /dev/ttyUSB2 sleep 0.8 echo -e "AT+CGACT=1,1\r" > /dev/ttyUSB2 ``` Every time `CGACT` re-activates context #1, T-Mobile/Vodafone/AT&T assigns a fresh public IPv4 from the carrier tower pool!
Community Replies & Benchmarks (2) ✓ Peer-Reviewed Configurations
IN
insta_botter ✓ TOP VERIFIED REPLY
12:55 PM

`AT+CGACT=0,1` -> `AT+CGACT=1,1` cut our rotation downtime from 28 seconds down to 1.6 seconds on our 40-modem Quectel EC25 rack. Absolute game-changer!

01:40 PM

Pair this with our Golang backconnect balancer so in-flight requests pause in a 2-second buffer queue during the AT reset instead of throwing `502 Bad Gateway`!

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