Fixed IP / Static Public IP Service — Fix IP Anywhere
Fixed IP (Static Public IP) is a public IP address that does not change when you reboot your router — ideal for remote desktop, CCTV, SIP servers, mail servers and port forwarding from outside.
Fix IP Anywhere by CORECASYS delivers a Static Public IP from a licensed ISP with its own Autonomous Network (AS), properly registered — the same IP follows you everywhere, even when you switch ISP or relocate.
CORECASYS is a licensed ISP with its own Autonomous Network (AS), offering Fix IP Anywhere — converting any internet line (Fiber, ADSL, VDSL, 3G/4G/5G) into a Public Static IP (Fixed IP) that is properly registered, standards-compliant and long-lasting. Most importantly, your IP follows you wherever there is internet, no matter which ISP you use.
Licensed ISP
Internet provider with its own Autonomous Network — Public IP from national IIG infrastructure
Standard Public IP
Properly registered Public IP, standards-compliant, reachable efficiently from abroad
IP follows you
Wherever you go, this Public Fixed IP follows you — keep the same IP when switching ISP
Flexible deployment
Multiple installation modes — we recommend Mode 5.3 behind Load Balance for best performance
Fix IP Anywhere solves the problem of ISPs alternating between Private IP and Public IP, which breaks remote access and port forwarding.
Fixed IP / Fix IP Anywhere Pricing
| Speed details | Monthly fee | Device | Setup |
|---|---|---|---|
| 1 IP 50/50 mbps. (Inter 50 mbps.) | 900 THB / prepaid 1 yr | 2,000 THB | Free |
| 1 IP 80/80 mbps. (Inter 80 mbps.) | 1,500 THB / prepaid 1 yr | 2,000 THB | Free |
| 1 IP 150/100 mbps. (Inter 100 mbps.) | 2,000 THB / prepaid 1 yr | 2,000 THB | Free |
| 1 IP 300/300 mbps. (Inter 300 mbps.) | 2,700 THB / prepaid 1 yr | 5,500 THB | Free |
| 1 IP 500/500 mbps. (Inter 400 mbps.) | 3,800 THB / prepaid 1 yr | 9,500 THB | Free |
- Additional IP: 200 THB/month per IP
- Choose Fix IP Anywhere speed to match your existing internet line
- White box device: lifetime warranty — USB 3G/4G device: 1-year warranty
- If service is paused and resumed later, reconnection fee 1,000 THB applies
- Fix IP Anywhere logs are stored per ICT Act B.E. 2560 and PDPA standards
- Customers can register MAC address with their Public IP (extra security)
- Extra IP Abroad available in ~13 countries (ask for your target country)
Fix IP Anywhere Video Guides
Extra IP Abroad
Australia Canada France Germany Hongkong Japan Malta
New Zealand Singapore Spain England U.S.A. Netherlands
Extra IP Abroad is billed on top of Fix IP Anywhere First year 25,000 THB/year (50% off from year 2)
- Use Extra IP Abroad for TikTok / Facebook selling in foreign markets
- Share International Gateway (Extra IP Abroad) via VPN
- Use as second gateway to reach problematic destinations (ideal for large organizations)
How to connect to the device
Connect via Bridge Modem (customer enters User Name / Password)
Set notebook LAN to 172.31.x.10 / Subnet 255.255.255.0 (no gateway) — connect LAN cable from notebook to port 2 of Fix IP Anywhere device — open browser http://172.31.x.x — click PPP menu then pppoe-out1
Enter User Name and Password as shown below
Auto IP connection (if you already get a working IP, you can use it immediately) 
Connect via USB 3G/4G (customer buys USB dongle separately, 2,500 THB)
Works with True, AIS, DTAC, my by CAT, Line Mobile, TOT3G (all Thai carriers)
Connect via WiFi
Use Fix IP Anywhere to connect via WiFi / WiFi HotSpot — reduces damage from modem power surges (lightning or short circuit)
Enterprise installation modes
Port forwarding problems
- Head office DDNS does not update
- Branch router or client cannot reach head office DDNS because branch DNS is not updated
- ISP alternates between Private IP and Public IP
- One DDNS provider does not work everywhere — sometimes DDNS works, sometimes NO-IP works
Benefits of Fix IP Anywhere
- Public Fixed IP connected directly to server or router
- Wherever you go, this Public Fixed IP follows you
- Fix remote access from outside
- Install mail server or other servers (web, DNS) with your own Public IP
- Cloud monitoring of Fix IP Anywhere devices and customer Public IPs
- Free network design consulting for Fix-IP related deployments
No single network or line is best everywhere — Fix IP Anywhere is the long-term solution
FAQ — Fixed IP / Static Public IP
- What is the difference between Fixed IP and Dynamic IP?
- Fixed IP (Static Public IP) is a public address that does not change when you reboot your router — ideal for remote desktop, CCTV, SIP servers and port forwarding. Dynamic IP changes on each session, making external access unreliable.
- Can home broadband get a Fixed IP (Static Public IP)?
- Yes — CORECASYS Fix IP Anywhere converts Fiber, ADSL, VDSL or 4G/5G lines into a registered Static Public IP from a real ISP without replacing your main internet line.
- How is Fix IP Anywhere different from a SIM with Fixed IP?
- Fix IP Anywhere provides Public IP from our own Autonomous Network as a licensed ISP. Your IP follows you anywhere and you can switch ISP. SIM Fixed IP is usually tied to one carrier and one SIM.
- Does it work with 5G and can I switch ISP?
- Yes — supports 3G/4G/5G via USB and WiFi connections. Your Public Fixed IP follows you even when you change ISP or relocate.
- How much does Fixed IP service cost?
- From 900 THB/month for 1 Public IP at 50/50 Mbps, prepaid annually. Device 2,000 THB. No setup fee — see pricing table
Datasheet Download Datasheet
Interested in Fix IP Anywhere?
Call 086-7041555 / 089-8555055 | info@corecasys.com