AS14543 — SRT-ASN

Network type: residential

AS14543 announces 6 IPv4 prefixes covering 41,984 addresses and 1 IPv6 prefixes.

About this network

Three different reverse naming schemes running side by side in one zone, on a network of only six prefixes.

What it's used for

• A telephone cooperative's broadband network. 41,984 addresses across six IPv4 prefixes plus one IPv6 prefix, 2605:4200::/32, with six observed BGP neighbours.

Notable

• The netnames run SRTTEL-1 through SRTTEL-5, plus SRTC, all registered to SRT Communications, Inc.
• Fifteen of eighteen sampled addresses returned a name, in three forms: 255.159.207.74.srtnet.com, 255.111.221.216.static.srtnet.com and static-162-247-189-0.srtnet.com.

Interesting

• The first form writes the address backwards with dots; the second does the same but adds a subdomain; the third writes it forwards with dashes and puts the word in front. All three are generated, all three answer, and they exist because each block was turned up by a different generation of tooling.
• Whether an address is called static is expressed two different ways as well: once as a subdomain, once as a prefix on the label. A parser reading these would need to know both.
• Six prefixes and five numbered netnames is a cooperative that acquired space in five separate rounds and filed each the same way. Compared with the sprawl elsewhere in this range, it is orderly.
• Fifteen of eighteen answering is the mark of a provider that names every line as it is provisioned, rather than only the ones in service.

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

Announced prefixes

• 69.84.16.0/20
• 74.207.128.0/18
• 96.43.112.0/20
• 136.227.64.0/19
• 162.247.188.0/22
• 216.221.96.0/19
• 2605:4200::/32

Upstream networks

• AS6461 Zayo Bandwidth
• AS3356 Level 3 Parent, LLC
• AS2914 NTT America, Inc.

Downstream networks

• AS18780 Reservation Telephone Coop.
• AS55215 Trinity Health
• AS55105 NORTHWEST COMMUNICATIONS COOPERATIVE

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS6461 Zayo Bandwidth
• AS18780 Reservation Telephone Coop.
• AS2914 NTT America, Inc.
• AS55215 Trinity Health
• AS55105 NORTHWEST COMMUNICATIONS COOPERATIVE

Internet exchanges

• Midwest Internet Cooperative Exchange — Minneapolis, United States