AS11979 — BLUENET

AS11979 announces 18 IPv4 prefixes covering 19,968 addresses and 6 IPv6 prefixes.

About this network

BLUENET is Bluegrass Network LLC, a carrier-owned fibre transport company in Elizabethtown, Kentucky, formed in 1995 by a group of independent Kentucky telephone companies to build a shared fibre ring between them. It is jointly owned by its member telcos.

What it's used for

• Internet access for its members' subscribers. Most of the address space this AS announces — around 20,000 IPv4 addresses across 25 prefixes, plus seven IPv6 prefixes from 2607:f9d0::/32 — is registered to Duo Broadband (formerly Duo County Telephone), one of Bluegrass Network's owner-members, and the reverse DNS on it is straightforwardly residential: 66-38-64-5.pool.dsl.duo-county.com, 66-38-52-5.pool.cbl.duo-county.com.
• Those are DSL and cable subscriber pools, so whatever Bluegrass Network is on paper, the space it originates carries ordinary home broadband customers.
• A small amount of the space is registered to Bluegrass Network itself, and its PTRs (CV-IRING-RTR-01.blue.net) are router infrastructure on the fibre ring.

Notable

• Duo Broadband is a co-owner, not an unrelated registrant, so the mismatch between the ASN holder and the prefix registrants is ownership structure rather than any sign of leased or brokered address space.
• Twenty observed neighbours is more than a pure enterprise and far fewer than a wholesale carrier — consistent with a regional aggregator that hauls its members' traffic to national hubs and peers on their behalf.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 45.56.208.0/21
• 64.52.16.0/23
• 64.250.64.0/21
• 64.250.72.0/22
• 64.250.76.0/23
• 66.38.0.0/22
• 66.38.12.0/22
• 66.38.16.0/22
• 66.38.29.0/24
• 66.38.45.0/24
• 66.38.48.0/21
• 66.38.58.0/23
• 66.38.60.0/23
• 66.38.64.0/20
• 66.38.80.0/23
• 66.198.232.0/24
• 67.221.40.0/21
• 74.50.46.0/24
• 2604:44c0::/32
• 2607:f9d0::/39
• 2607:f9d0:300::/40
• 2607:f9d0:800::/40
• 2607:f9d0:c000::/40
• 2607:f9d0:f000::/40

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS3257 GTT Communications Inc.
• AS24482 SG.GS
• AS293 ESnet
• AS852 TELUS Communications Inc.

Downstream networks

• AS16433 NORTH CENTRAL TELEPHONE COOPERATIVE CORPORATION
• AS26727 Brandenburg Telephone Company
• AS29894 South Central Rural Telecommunications Cooperative Inc.
• AS400589 LTC Connect
• AS19331 Twin Lakes Telephone Cooperative Corporation

Adjacent networks

• AS16433 NORTH CENTRAL TELEPHONE COOPERATIVE CORPORATION
• AS3356 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS26727 Brandenburg Telephone Company
• AS3257 GTT Communications Inc.
• AS6939 Hurricane Electric LLC
• AS29894 South Central Rural Telecommunications Cooperative Inc.
• AS400589 LTC Connect
• AS19331 Twin Lakes Telephone Cooperative Corporation
• AS24482 SG.GS
• AS293 ESnet
• AS852 TELUS Communications Inc.

Internet exchanges

• Equinix Internet Exchange Chicago — Chicago, United States
• Digital Realty Atlanta Internet Exchange — Atlanta, United States