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AS27291 Century Data Service, Inc

CDS - Century Data Service, Inc · registered in the United States

IPv4 addresses5122 prefixes · <0.001% of announced IPv4
Rank in United States#11,195largest network in US by IPv4 space, of 18,338 · <0.01% of US
Rank worldwide#50,620of 79,396 networks with IPv4
IPv6noneno IPv6 routes announced
CountryUnited States18,679 ASNs registered there

IPv4 prefixes

All 2 prefixes, in address order.

  • 38.246.126.0/24
  • 134.195.36.0/24

Similar-sized networks in United States

ASNNameIPv4 addresses
AS27226#11192 HARBOURVEST - Harbourvest Partners, LLC512
AS27270#11193 SFM - SFM Mutual Insurance Company512
AS27279#11194 ASCENSION-MDBAL - Ascension Technologies512
AS27295#11196 LISD - Lewisville Independent School District512
AS27303#11197 TGNA-WMAZ - TEGNA Inc.512
AS27304#11198 DUHAWKS - Loras College512

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources