Autonomous system
AS16525 KBR
Unclassified ARIN
Summary
KBR
enterprise business infrastructure
The holder is three initials; the netname spells out the three surnames they came from, plus a suffix the company dropped.
What it's used for
- An engineering and services company's network. Six IPv4 prefixes announced from the United States, no IPv6, four thousand six hundred and eight addresses, through three observed BGP neighbours.
Notable
- The holder and the registrant on every block are the same three capital letters, with no expansion given anywhere.
- Every block carries the same netname, and it is those three initials written out in full as three hyphenated names, with the corporate suffix on the end. The joining symbol between two of them is gone.
- All six blocks come from one parent range at four different sizes, and they are scattered through it rather than adjacent, so none can be merged.
- The AS handle is the initials again, matching the holder and not the netname.
- Eighteen addresses were queried for reverse DNS and none returned a name.
Interesting
- A company that renamed itself to its own initials leaves the expansion in exactly one place: the field nobody updates. The netname is a dictionary entry for the handle, preserved by inattention.
- Six fragments of one range, at four sizes, is what a network looks like when address space was requested as it was needed and never consolidated. Each fragment is a separate line in every routing table that carries it.
- Nothing in reverse DNS across four and a half thousand addresses is a network facing its own staff and its own contracts, not the public.
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 2026-10-15, 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 · 4.61K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 6 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS16525- Registry name
- KBR
- Registrant
- KBR
- Abuse contact
- kbrdnsadmin@kbr.com
- Registered
- 2007-04-13
- Last changed
- 2012-02-24
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 9 with no ROA
- ROAs
- 0 authorising AS16525
- ASPA
- no ASPA record
- IRR
- 100% registered · 9 of 9 announcements
- Route objects
- 13 naming AS16525
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 1,782 prefixes, as published 2026-10-16. 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