Autonomous system
AS21858 ASCENT-DATA-LLC
Unclassified ARIN
Summary
Ascent Data
business data us
The AS handle ASCENT-DATA-LLC is held by Ascent Data, LLC.
What it's used for
- The address space carries business infrastructure, evidenced by the reverse DNS entry
ucrpgtw01.spang.comand the consistent netnameNET-ASCENTDATAacross all prefixes. - The AS announces 2048 IPv4 addresses across 6 prefixes and 1 IPv6 prefix, with only 3 observed neighbours, indicating a small-scale business or internal corporate network rather than a transit provider.
Notable
- All registrants for the announced prefixes are listed as Ascent Data, LLC, matching the AS holder.
- The address inventory is finely subdivided into /23 and /24 blocks, suggesting site-by-site segmentation typical of an internal corporate estate.
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 2026-10-17, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 6 prefixes · 2.05K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 7 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS21858- Registry name
- ASCENT-DATA-LLC
- Registrant
- Ascent Data, LLC
- Abuse contact
- support@ascentdata.com
- Registered
- 2001-06-29
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 7 valid, 0 with no ROA
- ROAs
- 2 authorising AS21858
- ASPA
- no ASPA record
- IRR
- 100% registered · 7 of 7 announcements
- Route objects
- 20 naming AS21858
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: 442 networks and 1,783 prefixes, as published 2026-10-17. 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