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Domain footprint: comcast.com

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: 96.99.227.0 → Comcast Cable Communications, LLC
Mail: mxa-00143702.gslb.pphosted.com → Proofpoint, Inc. · mxb-00143702.gslb.pphosted.com → Proofpoint, Inc.
SPF sends via: spfext.zapproved.com · _spf.mdp.comcast.net · _spf.comcast.com · spf-00143705.pphosted.com

Separately, 19 organisations whose name resembles “comcast.com” — these may be unrelated to the domain above.

  1. COMCAST CORPORATION 4,716 netblocks across 10 companies in this group Corporate group
  2. GEN DIGITAL INC. 138 netblocks across 4 companies in this group Corporate group
  3. COMCAST INDIA ENGINEERING CENTER I LLP 3 netblocks · India Verified company
  4. Telecast B.V. 1 netblock · Netherlands Verified company
  5. Speedcast Communications, Inc 98 netblocks · APNIC registry Routing
  6. Comcast-SV8 8 netblocks · United States Routing
  7. Comcast-Palo-Alto 4 netblocks · United States Routing
  8. Metrocast Communications 4 netblocks · ARIN registry Routing
  9. BT-Superfast-com 4 netblocks · United Kingdom Routing
  10. Plast-Com-Marcin-Skucha-Monika Skucha 3 netblocks · RIPE registry Routing
  11. COMCAST-NBCU 3 netblocks · United States Routing
  12. COMCAST-FREEWHEEL 3 netblocks · United States Routing
  13. Comcast-Boston 3 netblocks · United States Routing
  14. Plast-Com 3 netblocks · PEERINGDB registry Handle
  15. Vast.com 3 netblocks · PEERINGDB registry Registry
  16. COMCAST_SOFTWARE_SOLUTIONS 2 netblocks · India Routing
  17. COMCAST_TECHNOLOGY 2 netblocks · United States Routing
  18. COMCAST-GTT6 2 netblocks · United States Routing
  19. LIAOYANG-BROADCAST-COMPANY 2 netblocks · APNIC registry Routing