AS21523 EN-21523 - EllumNet LLC

🇺🇸

ARINassigned

Announced Prefixes (BGP)

0total

0 IPv40 IPv6

IPv4 Addresses

Allocated (RIR)0

Announced (BGP)0

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)0

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

RIR

Status

assigned

Allocated

2001-05-16

No prefixes found for this ASN.

Downstream Customers(1)

ASN	Name
AS53857	🇺🇸EN-53857 - EllumNet LLC

Registry transfers of AS21523 between organisations.

Date	Resource	From	To	Type
2020-10-15	AS21523	LeaseNet 🇺🇸 US ARIN	EllumNet 🇺🇸 US ARIN	M&A

ASPA

No ASPA0 upstreams, 1 downstream

Listed as Upstream Provider by

External Links

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
How to run an ASPA checkVerify the upstream providers listed above
IPv4 transfers in the ARIN regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

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

curl -s "https://api.ipctl.io/v1/asn/21523" | jq