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Domain footprint: quad9.net

Resolved live just now — where this domain's services actually run, with each address attributed by OrgIndex. A DNS observation, not registry data: many organisations run entirely on providers' networks and hold no IP space of their own.

Web: 195.176.255.138 → SWITCH-QUAD9-HOSTING · 2001:620:2020:5:9::138 → SWITCH-QUAD9-HOSTING-IPV6
Mail: mx4.quad9.net → WoodyNet, Inc.
SPF sends via: _spf.quad9.net · mail.zendesk.com · servers.mcsv.net

Separately, 15 organisations whose name resembles “quad9.net” — these may be unrelated to the domain above.

  1. Quadro Net, s.r.o. 6 netblocks · Czechia Verified company
  2. Quickline AG 194 netblocks · RIPE registry Routing
  3. Quad9 21 netblocks · ARIN registry Routing
  4. Quantum CJSC 6 netblocks across 6 records under this name · United Kingdom Routing
  5. Quad9 Stiftung 4 netblocks · RIPE registry Routing
  6. NET GB Quadrature Capital Limited 3 netblocks · RIPE registry Registry
  7. SBD-NET-QUARTZLINE 2 netblocks · RIPE registry Routing
  8. NET DE Quadriga Media Berlin GmbH 2 netblocks · RIPE registry Registry
  9. NET-CZ-QUADRIO 2 netblocks · RIPE registry Routing
  10. SYNTHON-NET-QUI-CZ 2 netblocks · United States Routing
  11. Quad9 Administrative 2 netblocks · PEERINGDB registry Routing
  12. NET-QUAWORLD-91-144-90-192 1 netblock · RIPE registry Routing
  13. NET-QUAESTEL-212-92-17-80 1 netblock · RIPE registry Routing
  14. Net-Qualcomm-France-SARL 1 netblock · United States Routing
  15. Net Qualcomm CDMA Technologies GmbH 1 netblock · RIPE registry Registry