AS7752 — THRES

Network type: residential

AS7752 announces 4 IPv4 prefixes covering 8,960 addresses and 1 IPv6 prefixes.

About this network

Autonomous System 7752 (THRES) belongs to Threshold Communications, Inc., a Redmond, Washington telecom provider serving businesses in the Seattle area and the wider Pacific Northwest.

What it's used for

• Providing business connectivity and communications: dedicated internet access, broadband and 4G/5G links, hosted PBX and SIP trunking, colocation, and managed cloud/security services.
• Announcing roughly 9,000 IPv4 addresses — chiefly 209.189.192.0/19, its own ARIN allocation — plus a 2604:5000::/36 IPv6 block.

Notable

• Reverse DNS across the entire range follows one generic pattern, 209-189-NNN-NNN.ip.threshinc.net, with backbone routers named on the same domain (br01.sttlwawb.ip.threshinc.net — a Seattle, WA border router). There are no DSL, cable, PPPoE or dynamic-pool naming conventions anywhere in the space, which is the clearest signal that this is not an eyeball network.
• Read it as a B2B provider: addresses here sit at company offices, at customer sites and in colocation racks, not in homes. The company's published customer list is enterprises and public agencies rather than consumers.

Interesting

• The generic per-IP reverse-DNS pattern is common to both business ISPs and residential ones, so it is easy to misread on its own. What settles it here is the absence of subscriber-pool naming plus the operator's actual product line — a reminder that rDNS is most useful for what it does not say.

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

Announced prefixes

• 67.206.178.0/24
• 192.41.222.0/24
• 209.66.65.0/24
• 209.189.192.0/19
• 2604:5000::/36

Upstream networks

• AS6461 Zayo Bandwidth
• AS6939 Hurricane Electric LLC
• AS2914 NTT America, Inc.
• AS20055 Wholesail networks LLC
• AS9002 RETN Limited
• AS394256 Tech Futures Interactive Inc.
• AS24482 SG.GS
• AS852 TELUS Communications Inc.
• AS34927 iFog GmbH
• AS3130 RGnet OU
• AS7575 Australian Academic and Research Network (AARNet)

Downstream networks

• AS63479 HamWAN

Adjacent networks

• AS6461 Zayo Bandwidth
• AS63479 HamWAN
• AS2914 NTT America, Inc.
• AS6939 Hurricane Electric LLC
• AS20055 Wholesail networks LLC
• AS852 TELUS Communications Inc.
• AS9002 RETN Limited
• AS24482 SG.GS
• AS394256 Tech Futures Interactive Inc.
• AS34927 iFog GmbH
• AS7575 Australian Academic and Research Network (AARNet)
• AS3130 RGnet OU

Internet exchanges

• Seattle Internet Exchange — Seattle, United States