Help & Support

FRITZ!Box 6890 LTE modem/router

The FRITZ!Box 6890 LTE, which is exclusively offered as managed hardware with our Pro subscriptions, is ideal hardware for those who always need to be online. The router has a built-in 4G backup function: LTE serves as a fallback should the internet connection go down. No matter how good your current reception is, the FRITZ!Box 6890 always provides maximum speed with both UMTS (3G) and LTE (4G).

FRITZ!Box 6890 LTE modem/router


  • Annex A/B compatible ADSL, ADSL2+, VDSL2 and Fiber modem/router
  • Built-in 4G backup function
  • Integration into the LTE broadband network with LTE-SIM card (mini SIM)
  • Native IPv6 support

Note: the device cannot be configured in bridge mode


  • 2 analogue port for telephone, fax- or answering machine
  • ISDN S₀ bus for connecting ISDN telephones/ISDN telephone systems
  • DECT base station for connecting up to 6 cordless telephones
  • Integrated digital answering machine with up to 5 voicemail boxes
  • Fax function including e-mail forwarding (fax-to-mail)
  • Call diversion, internal calls, three-party conferencing, call transfer and blocks
FRITZ!Box 6890 LTE modem/router


  • Category 6 LTE modem (FDD)
  • Up to 300 Mbps reachable via LTE (4G)
  • Up to 42 Mbps reachable via UMTS/HSPA (3G)
  • Multi-band support: 5 LTE and 2 UMTS frequencies (LTE: bands 1, 3, 7, 8 and 20; UMTS: bands 1 and 8)
  • Option to connect outdoor antennas over SMA connectors


  • Easy and fast network connection of computers, laptops, game consoles through 1 of the 4 gigabit Ethernet ports (10/100/1000BASE-T)
  • 1 integrated USB port (USB 3.0) for printer and network storage
  • Several security functions such as integrated firewall, WPA2 encryption, parental lock, ...
  • Built-in VPN server for homeworkers

Wireless LAN

  • Dual-WLAN AC+N with 1733 Mbps (5 GHz) + 800 Mbps (2,4 GHz) for simultaneous usage of both WLAN frequencies
  • MESH Wi-Fi support to combine several wireless access points into one intelligent system
  • Wireless guest access for friends and visitors
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