Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Isp allocation +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
C Spire Fiber — global IP footprint
Cities where C Spire Fiber has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.
Countries served by C Spire Fiber
Every country where this organization has IPv4 allocations, ranked by IPs held.
ASNs owned by C Spire Fiber
Largest CIDR ranges
Frequently Asked Questions
How many IP addresses does C Spire Fiber own?
C Spire Fiber controls 247.0K IPv4 addresses distributed across 67 CIDR ranges. The organization is registered in United States.
What ASNs does C Spire Fiber operate?
C Spire Fiber operates 2 Autonomous Systems. Each ASN represents an independently routed network that C Spire Fiber manages for internet traffic delivery.
What type of organization is C Spire Fiber?
C Spire Fiber is categorized as isp. This classification is based on the organization's primary use of its IP address allocations.
