AS3 MIT-GATEWAYS - Massachusetts Institute of Technology

🇺🇸

ARINassigned

Announced Prefixes (BGP)

111total

98 IPv413 IPv6

IPv4 Addresses

Allocated (RIR)67,328

Announced (BGP)1.9M

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)7.1×10²⁹

Prefix Limit (IPv4)

200

Prefix Limit (IPv6)

Country

RIR

Status

assigned

Allocated

Announced Prefixes

(BGP)111

Prefix	RPKI	IRR	Last Seen
18.0.0.0/16	No ROA	Other IRR	-
18.1.0.0/16	No ROA	Other IRR	-
18.3.0.0/16	No ROA	Other IRR	-
18.3.1.0/24	No ROA	-	-
18.3.2.0/24	No ROA	-	-
18.3.3.0/24	No ROA	-	-
18.3.4.0/24	No ROA	-	-
18.3.5.0/24	No ROA	-	-
18.3.6.0/24	No ROA	-	-
18.3.7.0/24	No ROA	-	-

1-10 of 111

1 / 12

(RIR)7

Prefix	Country	RIR	Status
103.39.120.0/23	🇧🇩 BD	APNIC	allocated
128.52.0.0/16	🇺🇸 US	ARIN	allocated
192.52.61.0/24	🇺🇸 US	ARIN	allocated
192.52.62.0/24	🇺🇸 US	ARIN	allocated
192.52.63.0/24	🇺🇸 US	ARIN	allocated
192.52.64.0/24	🇺🇸 US	ARIN	allocated
192.52.65.0/24	🇺🇸 US	ARIN	allocated

(seen in AS paths)

Networks AS3 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 AS3 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/3" | jq