AS49 US-NATIONAL-INSTITUTE-OF-STANDARDS-AND-TECHNOLOGY - National Institute of Standards and Technology

🇺🇸

ARINassigned

Announced Prefixes (BGP)

36total

29 IPv47 IPv6

IPv4 Addresses

Allocated (RIR)131,072

Announced (BGP)81,664

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)2.4×10²⁷

Prefix Limit (IPv4)

200

Prefix Limit (IPv6)

Country

RIR

Status

assigned

Allocated

1985-09-04

Announced Prefixes

(BGP)36

Prefix	RPKI	IRR	Last Seen
129.6.0.0/21	Valid	ARIN	-
129.6.8.0/22	Valid	ARIN	-
129.6.12.0/23	Valid	ARIN	-
129.6.14.0/24	Valid	ARIN	-
129.6.15.0/24	Valid	ARIN	-
129.6.16.0/21	Valid	ARIN	-
129.6.24.0/22	Valid	ARIN	-
129.6.28.0/24	Valid	ARIN	-
129.6.29.0/24	Valid	ARIN	-
129.6.30.0/24	Valid	ARIN	-

1-10 of 36

1 / 4

(RIR)2

Prefix	Country	RIR	Status
129.6.0.0/16	🇺🇸 US	ARIN	allocated
132.163.0.0/16	🇺🇸 US	ARIN	allocated

(seen in AS paths)

Networks AS49 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 AS49 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/49" | jq