Home Prefix Lookup204.229.192.0/18

204.229.192.0/18 - The University Of Arizona (AS1706)

IPv4ARINallocatedAS1706UNIV-ARIZ - The University of ArizonaNo ROA

CIDR

204.229.192.0/18

IP Version

IPv4

Addresses

16.3K

Mask

/18 (255.255.192.0)

Country

🇺🇸 United States

City

Tucson (University of Arizona)

RIR

ARIN

Status

allocated

Allocated

1995-01-12

Announced BGP Routes

0 of 0 routes

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below.

More-Specific Announcements

12 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
204.229.192.0/20	AS1706 UNIV-ARIZ - The University of Arizona	No ROA	-	2026-10-11
204.229.208.0/21	AS1706 UNIV-ARIZ - The University of Arizona	No ROA	-	2026-10-11
204.229.216.0/23	AS1706 UNIV-ARIZ - The University of Arizona	No ROA	-	2026-10-11
204.229.218.0/24	AS1706 UNIV-ARIZ - The University of Arizona	No ROA	-	2026-10-11
204.229.219.0/24	AS20001 TWC-20001-PACWEST - Charter Communications Inc	No ROA	-	2026-10-11
204.229.220.0/22	AS20001 TWC-20001-PACWEST - Charter Communications Inc	No ROA	-	2026-10-11
204.229.224.0/21	AS1706 UNIV-ARIZ - The University of Arizona	No ROA	-	2026-10-11
204.229.232.0/23	AS1706 UNIV-ARIZ - The University of Arizona	No ROA	-	2026-10-11
204.229.234.0/24	AS20001 TWC-20001-PACWEST - Charter Communications Inc	No ROA	-	2026-10-11
204.229.235.0/24	AS1706 UNIV-ARIZ - The University of Arizona	No ROA	-	2026-10-11
204.229.236.0/22	AS1706 UNIV-ARIZ - The University of Arizona	No ROA	-	2026-10-11
204.229.240.0/20	AS1706 UNIV-ARIZ - The University of Arizona	No ROA	-	2026-10-11

Transfer History

Registry transfers of 204.229.192.0/18, blocks inside it, or blocks containing it.

204.229.192.0/18M&A · 2018-10-10
WestNet, Inc.
🇺🇸 US ARIN
→
University of Arizona
🇺🇸 US ARIN

Date	Resource	From	To	Type
2018-10-10	204.229.192.0/18	WestNet, Inc. 🇺🇸 US ARIN	University of Arizona 🇺🇸 US ARIN	M&A

Origin ASN

AS1706

UNIV-ARIZ - The University of Arizona

Related Prefixes

More prefixes of AS1706

All prefixes of AS1706 →

Geolocation

Country🇺🇸United StatesUS

RegionArizona

CityTucson (University of Arizona)

Coordinates32.2357, -110.9520 ↗

Learn more

RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
RPKI validatorCheck ROA coverage for any prefix or ASN
What is BGP?How prefixes are announced and routed
More-specific prefixesGlossary: covering and more-specific routes
IPv4 transfers in the ARIN regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/204.229.192.0/18

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/204.229.192.0/18" | jq

External Links

RIPEstat