Autonomous system
AS21811 BAB - Build-A-Bear Workshop, Inc.
Unclassified ARIN
Summary
Build-A-Bear Workshop
business retail corporate
The AS handle BAB is held by Build-A-Bear Workshop, Inc.
What it's used for
- The address space carries corporate infrastructure for the retail chain, evidenced by the netname
BW-425and the registrantBuild-A-Bear Workshop, Inc. - The network announces 256 IPv4 addresses across 1 prefix with 3 observed neighbours, a ratio consistent with a small internal corporate estate rather than a transit or access provider.
Notable
- The RDAP registrant
Build-A-Bear Workshop, Inc.agrees with the AS holder, confirming direct ownership of the announced space. - The inventory consists of a single /24 block (104.238.197.0/24), indicating a compact and finely managed address allocation for the company's operations.
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 2026-11-08, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 256 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS21811- Registry name
- BAB
- Registrant
- Build-A-Bear Workshop, Inc.
- Abuse contact
- davidbr@buildabear.com
- Registered
- 2018-03-07
- Last changed
- 2018-03-07
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS21811
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 1 naming AS21811
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: 455 networks and 1,854 prefixes, as published 2026-11-09. 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