AS18 UTEXAS - University of Texas at Austin

🇺🇸

ARINassigned

Announced Prefixes (BGP)

8total

8 IPv40 IPv6

IPv4 Addresses

Allocated (RIR)262,144

Announced (BGP)299,520

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)0

Prefix Limit (IPv4)

500

Prefix Limit (IPv6)

Country

RIR

Status

assigned

Allocated

1984-07-27

Announced Prefixes

(BGP)8

Prefix	RPKI	IRR	Last Seen
128.62.0.0/16	No ROA	Other IRR	-
128.83.0.0/16	No ROA	Other IRR	-
129.116.0.0/16	No ROA	Other IRR	-
146.6.0.0/16	No ROA	Other IRR	-
198.213.192.0/18	No ROA	ARIN	-
198.214.80.0/20	No ROA	Other IRR	-
198.214.250.0/23	No ROA	-	-
206.76.64.0/18	Valid	ARINOther IRR	-

(RIR)4

Prefix	Country	RIR	Status
128.62.0.0/16	🇺🇸 US	ARIN	allocated
128.83.0.0/16	🇺🇸 US	ARIN	allocated
129.116.0.0/16	🇺🇸 US	ARIN	allocated
146.6.0.0/16	🇺🇸 US	ARIN	allocated

(seen in AS paths)

Networks AS18 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 AS18 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/18" | jq