AS11353 — ASN-ESCXI
Network type: education
AS11353 announces 2 IPv4 prefixes covering 17,408 addresses and 0 IPv6 prefixes.
About this network
ASN-ESCXI is Education Service Center Region XI, one of the twenty regional service centres of the Texas education system. Registered at White Settlement in the Fort Worth area, it provides shared services — including internet connectivity — to the public school districts of its region.
What it's used for
ESC Region XI acts as an aggregator for K-12 school networks: districts buy transit and services through the centre rather than each contracting separately. The routing matches. RIS sees 4 v4 prefixes / 17,408 addresses, no IPv6, and 5 observed neighbours — a handful of adjacencies, so this is a regional aggregation network rather than a transit carrier, and the address count is consistent with serving many campuses of student and staff devices. Most of the space is one large block, 216.213.192.0/18, registered directly to the service center as ESC11-BLK-1, with two more ESC11-BLK-1 prefixes carved alongside it.
Notable
The fourth prefix, 208.84.136.0/22, registers not to the service center but to Denton Independent School District — and that is the point rather than an anomaly. A district holding its own space while the regional centre originates it in BGP is exactly what a shared K-12 connectivity provider looks like. Reverse DNS on that block returns vpn.dentonisd.org, confirming the block is genuinely carrying the district's own traffic.
Interesting
That vpn. hostname names an access mechanism — a remote-access concentrator for staff — not a commercial VPN service. Reading a vpn label as a proxy provider is a standard trap; here it is simply a school district's remote-access gateway.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 208.84.136.0/22
- 216.213.192.0/18
Upstream networks
- AS6461 Zayo Bandwidth
Downstream networks
- AS19945 Granbury Independent School District
- AS397605 Northwest ISD
- AS396208 Azle Independent School District
- AS27295 Lewisville Independent School District
Adjacent networks
awaiting query
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