Also posted as an article on LinkedIn.

A question about a 2 gig pricing plan turned into a longer look at UTOPIA Fiber in Utah. Most fiber ISPs are vertically integrated: one company owns the physical line, the ONT on the wall, and the service billed on top. UTOPIA splits that into two separate businesses, and the split changes more than I expected once I looked at it closely.

Wholesale infrastructure, retail competition

UTOPIA is a consortium of twenty Utah cities. The cities built and own the physical fiber network. Utah law prohibits municipalities from selling telecom service directly to residents, so UTOPIA doesn't try to. It operates as wholesale-only infrastructure and leases access to any ISP willing to pay for it. Around fifteen ISPs currently sell service over the same physical network, and a subscriber picks one the way they'd pick an electricity provider in a deregulated market. The wire underneath doesn't change based on which one they choose.

The pricing reflects that structure directly. Sumo Fiber sells symmetrical 10 gig for about $150/month all-in on UTOPIA. AT&T Fiber's comparable top tier, 5 gig, runs $95 to $125/month depending on discounts, also symmetrical, for half the speed. Fifteen ISPs sharing identical infrastructure can't compete on the fiber itself, so price and support are the only levers left.

Active Ethernet instead of PON

Most residential fiber, including Quantum Fiber, runs GPON or XGS-PON. A single fiber strand out of the hub is split passively across many homes using unpowered optical splitters. It's point-to-multipoint, and bandwidth is shared across the split.

UTOPIA runs Active Ethernet. Every home gets a dedicated fiber strand terminating at active switching equipment in a neighborhood hub. It's point-to-point, with no split and nothing shared. This costs more to build (more fiber in the ground, more powered equipment in the field), but it's also why UTOPIA can offer symmetrical 10 gig without worrying about oversubscription. There's no shared split for oversubscription to happen on.

Where the ISP boundary actually sits

Since UTOPIA owns the fiber, the ONT, and the switching infrastructure, the ISP's actual job is narrower than it looks from the outside.

UTOPIA's switch assigns each subscriber's port to a VLAN belonging to whichever ISP they signed up with. Traffic arrives at the ISP's aggregation point already tagged. That handoff is the real boundary: everything past it, upstream transit to the wider internet, DHCP/PPPoE provisioning, billing, and support, is the ISP's responsibility. Everything before it is UTOPIA's.

Switching ISPs on UTOPIA is mostly a VLAN reassignment on the back end. No new cabling, no new ONT, no truck roll. Issaquah Highlands runs a different model on paper-similar shared community fiber: the network is HOA-owned, but only one ISP (GigabitNow) operates on it, and connection is mandatory under the covenants. Same idea of pooled infrastructure, opposite outcome, because there's no second ISP to switch to.

It's the same primitive I use on my own router. OPNsense VLANs separate my subnets across shared physical ports: a device gets tagged, the tag becomes an interface, the interface gets its own firewall rules. UTOPIA runs the identical pattern at carrier scale: one physical wire, split into logically separate networks by VLAN, one VLAN per ISP tenant.

Getting off UTOPIA's network entirely

Once traffic reaches an ISP, it still has to reach the rest of the internet, which means reaching an internet exchange point: a facility where multiple networks connect to a shared switch fabric and exchange traffic directly instead of paying a third party to carry it.

Salt Lake City has SLIX, run by XMission out of downtown SLC, handling traffic north of a terabit through a handful of local colocation facilities. Bellevue doesn't have a comparable local exchange. The relevant one for this area is the Seattle Internet Exchange, centered in the Westin Building downtown, a carrier hotel with over two hundred telecom and ISP tenants. Any ISP serving the Eastside efficiently is backhauling to Seattle to reach it.

At a facility like that, there are a few distinct things a company can rent:

• Colocation: rack space, with the tenant owning and installing their own equipment. The facility provides power, cooling, and physical security.
• Cross-connects: a physical cable between two racks in the same building. This is the actual wire that peering runs over.
• IXP port fees: paid to the exchange operator (SIX, SLIX) for a port on the shared switch fabric, which connects a tenant to every other member over BGP instead of requiring individual cross-connects to each one.
• Remote peering: no physical presence required. A third party with existing presence extends a virtual port to a customer.

Nobody except the building operator owns the facility itself. Every other participant is a tenant at some layer. The pattern repeats at every level: UTOPIA owns the fiber and leases VLANs to ISPs, ISPs lease rack space and lease ports on an exchange, and the exchange operator leases the building from a data center company. Ownership of infrastructure and delivery of service keep getting separated, layer by layer, and competition only exists at the layer where that separation happens.

Summary

UTOPIA's structure splits one question, "who is your ISP," into two: who owns the physical wire, and who leases the VLAN running over it. Only the second part is competitive, and the pricing shows it.