AS399143 4CEPA-FASTNET - 4-County Electric Power Association

🇺🇸

ARINassigned

Announced Prefixes (BGP)

50total

13 IPv437 IPv6

IPv4 Addresses

Allocated (RIR)5,120

Announced (BGP)7,680

IPv6 Addresses

Allocated (RIR)7.9×10²⁸

Announced (BGP)7.9×10²⁸

Prefix Limit (IPv4)

Prefix Limit (IPv6)

200

Country

RIR

Status

assigned

Allocated

2020-12-29

Announced Prefixes

(BGP)50

Prefix	RPKI	IRR	Last Seen
142.99.108.0/22	No ROA	ARIN	2026-10-11
207.244.200.0/21	Valid	ARIN	2026-10-11
207.244.200.0/24	Valid	ARIN	2026-10-11
207.244.201.0/24	Valid	ARIN	2026-10-11
207.244.203.0/24	Valid	ARIN	2026-10-11
207.244.204.0/24	Valid	ARIN	2026-10-11
207.244.206.0/24	Valid	ARIN	2026-10-11
207.244.207.0/24	Valid	ARIN	2026-10-11
209.25.184.0/21	Valid	ARIN	2026-10-11
209.25.184.0/24	Valid	ARIN	2026-10-11

1-10 of 50

1 / 5

(RIR)4

Prefix	Country	RIR	Status
142.99.108.0/22	🇺🇸 US	ARIN	allocated
207.244.200.0/21	🇺🇸 US	ARIN	allocated
209.25.184.0/21	🇺🇸 US	ARIN	allocated
2606:8240::/32	🇺🇸 US	ARIN	allocated

(seen in AS paths)

Networks AS399143 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 AS399143 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/399143" | jq