AS396973 DHS-39H - Department of Homeland Security

🇺🇸

ARINassigned

Announced Prefixes (BGP)

10total

8 IPv42 IPv6

IPv4 Addresses

Allocated (RIR)0

Announced (BGP)2,048

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)2.4×10²⁴

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

RIR

Status

assigned

Allocated

2018-08-06

Announced Prefixes

(BGP)10

Prefix	RPKI	IRR	Last Seen
208.73.184.0/24	Valid	-	2026-10-10
208.73.185.0/24	Valid	-	2026-10-10
208.73.186.0/24	Valid	-	2026-10-10
208.73.187.0/24	Valid	-	2026-10-10
208.73.188.0/24	Valid	-	2026-10-10
208.73.189.0/24	Valid	-	2026-10-10
208.73.190.0/24	Valid	-	2026-10-10
208.73.191.0/24	Valid	-	2026-10-10
2620:112:5004::/48	Valid	-	2026-10-10
2620:112:5005::/48	Valid	-	2026-10-10

(seen in AS paths)

Networks AS396973 hands its own prefixes to: transit providers, or peers at an exchange.

ASPA

No ASPA

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
ASPA explainedWhy AS396973 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

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

curl -s "https://api.ipctl.io/v1/asn/396973" | jq