AS11598 — RECOL-CT
AS11598 announces 5 IPv4 prefixes covering 4,864 addresses and 1 IPv6 prefixes.
About this network
RECOL-CT is Cloudsmart, a Branford, Connecticut managed service and datacentre operator. The company started in 1995 as RECOL, a business-focused ISP, and rebranded to Cloudsmart around 2016 — which is why the AS handle, the legacy netnames and the reverse DNS still say recol.
What it's used for
RIS shows 6 announced IPv4 prefixes, 4,864 addresses, 1 IPv6 prefix (2606:7800::/32) and 6 observed neighbours. Five of the six IPv4 prefixes are contiguous blocks out of 64.207.96.0, all registered to Cloudsmart under RECOL-LLC; the sixth, 199.21.248.0/22, registers to Cloudsmart as well under ISG-NETBLK001. Every prefix is first-party. There are no unrelated third-party registrants, so the leasing shape does not apply.
The reverse DNS is the interesting part because it shows two eras of the business coexisting in one AS. 64-207-100-133.dsl.ct.recol.net is a DSL subscriber name from the ISP era — templated, per-address, in the dsl.ct.recol.net zone. mx1.easternfiredoor.com on the same /24 is a customer's mail server, an individually named business host of the sort a colocation or managed-hosting provider runs. unassigned.isgsoftware.net across the 199.21.248.0/22 marks space held but not currently allocated.
Notable
Six neighbours against under 5,000 addresses is a regional provider with several upstreams, not a carrier. The primary business today is datacentre, colocation, cloud and backup for MSPs and municipalities, so hosting is the honest classification — with the caveat, visible right there in the PTRs, that legacy business-DSL access lines still live in the same space.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 64.207.96.0/21
- 64.207.104.0/22
- 64.207.108.0/23
- 64.207.110.0/24
- 199.21.248.0/22
- 2606:7800::/32
Upstream networks
- AS22742 Connecticut Education Network
- AS46887 Crown Castle Fiber LLC
- AS5650 Frontier Communications of America, Inc.
- AS7015 Comcast Cable Communications, LLC
Downstream networks
Adjacent networks
awaiting query
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