Home ASN LookupAS10857

AS10857 JCPENNEY-AS - JCPenney

🇺🇸

ARINassigned

Announced Prefixes (BGP)

22total

22 IPv40 IPv6

IPv4 Addresses

Allocated (RIR)32,768

Announced (BGP)38,656

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)0

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

🇺🇸 US

RIR

ARIN

Status

assigned

Allocated

1997-12-12

Announced Prefixes

(BGP)22

Prefix	RPKI	IRR	Last Seen
146.235.64.0/18	No ROA	Other IRR	2026-10-11
146.235.66.0/24	No ROA	-	2026-10-11
146.235.67.0/24	No ROA	-	2026-10-11
146.235.83.0/24	No ROA	-	2026-10-11
146.235.84.0/23	No ROA	-	2026-10-11
146.235.86.0/24	No ROA	-	2026-10-11
146.235.87.0/24	No ROA	-	2026-10-11
146.235.88.0/23	No ROA	-	2026-10-11
146.235.88.0/24	No ROA	-	2026-10-11
146.235.89.0/24	No ROA	-	2026-10-11

1-10 of 22

1 / 3

Allocated Prefixes

(RIR)2

Prefix	Country	RIR	Status
146.235.64.0/18	🇺🇸 US	ARIN	allocated
146.235.128.0/18	🇺🇸 US	ARIN	allocated

All 22 announced prefixes of AS10857 →

BGP Neighbours

(seen in AS paths)

Upstreams (3)

Networks AS10857 hands its own prefixes to: transit providers, or peers at an exchange.

AS3356Level 3 Parent14
AS7018AT&T Enterprises5
AS20231Charter Communications3

Transfer History

Registry transfers of AS10857 between organisations.

AS10857M&A · 2022-07-05
JCPenney Co., Inc.
🇺🇸 US ARIN
→
JCPenney
🇺🇸 US ARIN

Date	Resource	From	To	Type
2022-07-05	AS10857	JCPenney Co., Inc. 🇺🇸 US ARIN	JCPenney 🇺🇸 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 AS10857 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/10857

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

curl -s "https://api.ipctl.io/v1/asn/10857" | jq