Autonomous system
AS13880 ACSL-AS1
Hosting ARIN
Summary
American Century Services
finance business enterprise
Two blocks from one parent range, with room for six more of the same size in the gap between them.
What it's used for
- An investment company's network. 1,024 addresses across two IPv4 prefixes, three observed BGP neighbours, and no IPv6 announced.
Notable
- The prefixes are
216.230.48.0/23and216.230.62.0/23, both inside the same parent range. - The gap between them is wide enough for six more blocks of the same size.
- Both are netname
ACSL-IPV4-1, initials, a protocol version and a counter. - The AS handle is
ACSL-AS1, the same initials with a different suffix and counter. - Three upstreams serve 1,024 addresses.
- Six addresses were queried for reverse DNS and none returned a name.
Interesting
- Two widely separated pieces of one range mean the space between them went to other customers of whoever held the parent. Address blocks are handed out as they are asked for, so the gap is a record of other companies' requests arriving between this company's two.
- Handle and netname built from the same initials but with different suffix conventions is the common case in this range: each object was created by whoever needed it, following a scheme that existed in their head rather than in a document.
- Three upstreams for a thousand addresses is a financial firm buying availability, not capacity.
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 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 1.02K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS13880- Registry name
- ACSL-AS1
- Registrant
- American Century Services, LLC
- Abuse contact
- it-ns-vendornotify@americancentury.com
- Registered
- 1999-09-02
- Last changed
- 2022-03-15
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 6 valid, 0 with no ROA
- ROAs
- 3 authorising AS13880
- ASPA
- no ASPA record
- IRR
- 100% registered · 6 of 6 announcements
- Route objects
- 21 naming AS13880
Reputation
Classification and threat
Hosting Datacenter or cloud provider. Addresses are servers, not people.
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 1,771 prefixes, as published 2026-10-15. 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