Autonomous system
AS10916 FIRSTVOLUNTEER
Unclassified ARIN
Summary
First Volunteer Bank (Builtwell Bank)
enterprise legacy
FIRSTVOLUNTEER belongs to First Volunteer Bank, a community bank headquartered in Chattanooga, Tennessee, which now trades as Builtwell Bank. This is a corporate enterprise network, not a service provider.
What it's used for
The AS originates exactly one IPv4 prefix — 104.128.164.0/24, 256 addresses — with no IPv6 and only 2 observed neighbours. That is the textbook multihomed-enterprise shape: a single provider-independent /24 announced to a pair of upstreams purely so the bank's public services stay reachable when one circuit fails. The address count is far too small, and the neighbour count far too low, for anything resembling a carrier or a hosting business.
Notable
The two sampled PTRs tell the whole story between them. 104.128.164.133 resolves to ciscoesa.builtwell.bank — a Cisco Email Security Appliance sitting under the bank's own .bank domain, which is exactly the sort of edge box (mail gateway, VPN concentrator, remote-access portal) that justifies an enterprise running BGP at all. It also confirms the rebrand: the legal holder is still registered as First Volunteer, but the live infrastructure answers as Builtwell.
Interesting
The other sample, 104.128.164.5, resolves to host-104-128-164-5.ftb.epbfi.com — the default naming of EPB Fiber Optics, Chattanooga's municipally owned fibre utility. The bank's own address space is wearing its upstream's generic reverse DNS. That is a clean, small-scale demonstration of a rule that trips up a lot of network classification: rDNS shows who carries a block, not who holds it.
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 2026-10-21, 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
AS10916- Registry name
- FIRSTVOLUNTEER
- Registrant
- First Volunteer Bank
- Abuse contact
- scott.harrison@builtwell.bank
- Registered
- 2014-09-17
- Last changed
- 2014-09-17
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS10916
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 1 announcements
- Route objects
- 0 naming AS10916
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 1,779 prefixes, as published 2026-10-22. 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