AS63039 — USMOASN

AS63039 announces 14 IPv4 prefixes covering 6,912 addresses and 0 IPv6 prefixes.

About this network

USMOASN is operated by Spok Inc.

What it's used for

• The address space carries corporate infrastructure, with netnames PAGENET-TX and UU-63-97-34-D4 associated with registrants Pagenet and SPOK HOLDINGS, INC.
• The AS announces 6,912 IPv4 addresses across 14 prefixes and maintains 3 observed neighbours, a ratio indicative of an internal corporate estate rather than a transit or access network.
• Traffic from this AS consists of internal communications and software endpoints supporting Spok's healthcare communication solutions, including critical care messaging and collaboration platforms.

Notable

• Registrants include Pagenet for the majority of prefixes and SPOK HOLDINGS, INC. for 63.97.34.0/24, reflecting the company's historical transition from paging services to healthcare software.
• Spok Inc. took its current form in 2014 when USA Mobility, Inc. rebranded and shifted its focus from legacy paging toward healthcare software.
• The inventory is dominated by 147.187.0.0/16 space, with a single /24 from 63.97.0.0/16, showing a consolidated corporate address block.

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

Announced prefixes

• 63.97.34.0/24
• 147.187.0.0/23
• 147.187.10.0/24
• 147.187.12.0/22
• 147.187.16.0/22
• 147.187.100.0/24
• 147.187.110.0/24
• 147.187.112.0/23
• 147.187.115.0/24
• 147.187.116.0/22
• 147.187.128.0/23
• 147.187.130.0/24
• 147.187.132.0/23
• 147.187.255.0/24

Upstream networks

• AS701 Verizon Business
• AS19717 Mainstream Data, Inc.
• AS11427 Charter Communications Inc

Adjacent networks

• AS701 Verizon Business
• AS19717 Mainstream Data, Inc.
• AS11427 Charter Communications Inc

Routing security

• RPKI: 0 valid, 0 invalid and 19 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 0% of announcements registered; 1 route objects.
• Listed in as-sets: AS-CHTR-SYNC, AS-RR-BIZ.