Home ASN LookupAS19524

AS19524 COMERICA-INC - Comerica Incorporated

🇺🇸

ARINassigned

Announced Prefixes (BGP)

44total

44 IPv40 IPv6

IPv4 Addresses

Allocated (RIR)65,536

Announced (BGP)11,264

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)0

Prefix Limit (IPv4)

100

Prefix Limit (IPv6)

Country

🇺🇸 US

RIR

ARIN

Status

assigned

Allocated

2001-01-16

Announced Prefixes

(BGP)44

Prefix	RPKI	IRR	Last Seen
12.15.6.0/24	No ROA	-	-
12.15.7.0/24	No ROA	-	-
170.228.0.0/24	No ROA	-	-
170.228.1.0/24	No ROA	-	-
170.228.2.0/24	No ROA	-	-
170.228.3.0/24	No ROA	-	-
170.228.4.0/24	No ROA	-	-
170.228.5.0/24	No ROA	-	-
170.228.6.0/24	No ROA	-	-
170.228.8.0/24	No ROA	-	-

1-10 of 44

1 / 5

Allocated Prefixes

(RIR)1

Prefix	Country	RIR	Status
170.228.0.0/16	🇺🇸 US	ARIN	allocated

All 44 announced prefixes of AS19524 →

BGP Neighbours

(seen in AS paths)

Upstreams (2)

Networks AS19524 hands its own prefixes to: transit providers, or peers at an exchange.

AS19905Vercara41
AS7018AT&T Enterprises3

Transfer History

Registry transfers of AS19524 between organisations.

AS19524M&A · 2026-07-14
Comerica Incorporated
🇺🇸 US ARIN
→
Fifth Third Bank
🇺🇸 US ARIN

Date	Resource	From	To	Type
2026-07-14	AS19524	Comerica Incorporated 🇺🇸 US ARIN	Fifth Third Bank 🇺🇸 US ARIN	M&A

ASPA

No ASPA

External Links

ARIN Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS19524 should publish an ASPA object
IPv4 transfers in the ARIN regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/19524

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/19524" | jq