Autonomous system
AS63039 USMOASN
Unclassified ARIN
Summary
Spok Inc.
business healthcare corporate
USMOASN is operated by Spok Inc.
What it's used for
- The address space carries corporate infrastructure, with netnames
PAGENET-TXandUU-63-97-34-D4associated 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. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 14 prefixes · 6.91K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 14 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS63039- Registry name
- USMOASN
- Registrant
- Spok Inc.
- Abuse contact
- netengcw@spok.com
- Registered
- 2014-01-10
- Last changed
- 2014-01-10
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 19 with no ROA
- ROAs
- 0 authorising AS63039
- ASPA
- no ASPA record
- IRR
- 95% registered · 18 of 19 announcements
- Route objects
- 1 naming AS63039
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 436 networks and 1,771 prefixes, as published 2026-10-13. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere