Autonomous system
AS11720 IBCP - Independent Bank Corporation
Unclassified ARIN
Summary
Independent Bank Corporation
enterprise legacy
IBCP is Independent Bank Corporation, the Grand Rapids, Michigan bank holding company (NASDAQ: IBCP) behind Independent Bank, a state-chartered community bank with a branch network across Michigan's Lower Peninsula. The handle is the company's stock ticker, and the AS carries the bank's own infrastructure.
What it's used for
This is about as small as a routed enterprise gets: two adjacent /24s, 198.17.60.0/24 and 198.17.61.0/24, 512 addresses total, and one observed neighbour in the RIS view. No IPv6. A single upstream and a single contiguous block is a network that exists to publish a handful of public-facing services — online banking front ends, VPN concentrators for branches and staff, mail and DNS — while everything that matters sits behind them on private space.
Both prefixes are registered in ARIN directly to Independent Bank Corporation under the IBCP-INTERNET handle. Holder, registrant and announcer are the same organisation, with no third-party registrants anywhere in the inventory, which is what rules out the address-leasing pattern outright. The addresses sampled returned no PTRs; that is a sample of four addresses out of 512 and supports no conclusion either way, so nothing is built on it here.
Notable
A bank's public AS is deliberately unexciting. The signal that matters for classification is the neighbour count: one upstream means this network consumes connectivity and never sells it, so it belongs in the enterprise bucket regardless of how the address space is arranged.
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.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS26554 | US Signal Company, L.L.C. | 128 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-05, 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 · 512 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS11720- Registry name
- IBCP
- Registrant
- Independent Bank Corporation
- Abuse contact
- it_administration@ibcp.com
- Registered
- 2013-03-28
- Last changed
- 2013-03-28
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 2 with no ROA
- ROAs
- 0 authorising AS11720
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 1 naming AS11720
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: 453 networks and 1,854 prefixes, as published 2026-11-06. 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