Home Prefix Lookup216.191.0.0/16

216.191.0.0/16 - Zayo Bandwidth (AS6461)

IPv4ARINallocatedAS6461ZAYO-6461 - Zayo Bandwidth RPKI Valid

CIDR

216.191.0.0/16

IP Version

IPv4

Addresses

65.5K

Mask

/16 (255.255.0.0)

Country

🇺🇸 United States

City

Denver (Central)

RIR

ARIN

Status

allocated

Allocated

1999-06-15

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
216.191.0.0/16	AS6461 ZAYO-6461 - Zayo Bandwidth	Valid	-	2026-10-11

More-Specific Announcements

7 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
216.191.21.0/24	AS53338 ITCI - ITCI Corporation	Valid	-	2026-10-11
216.191.95.0/24	AS6461 ZAYO-6461 - Zayo Bandwidth	Invalid	-	2026-10-11
216.191.110.0/24	AS7385 ABUL-14-7385 - Allstream Business US, LLC	Valid	-	2026-10-11
216.191.118.0/24	AS15290 ZAYO-CAN-15290 - Zayo Bandwidth	Valid	-	2026-10-11
216.191.234.0/24	AS15290 ZAYO-CAN-15290 - Zayo Bandwidth	Valid	-	2026-10-11
216.191.238.0/24	AS15290 ZAYO-CAN-15290 - Zayo Bandwidth	Valid	-	2026-10-11
216.191.252.0/23	AS15290 ZAYO-CAN-15290 - Zayo Bandwidth	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
216.191.0.0/16	AS6461	/16	arin

Transfer History

Registry transfers of 216.191.0.0/16, blocks inside it, or blocks containing it.

216.191.0.0/16M&A · 2025-06-20
Allstream Corp.
🇨🇦 CA ARIN
→
Zayo Bandwidth
🇺🇸 US ARIN

Date	Resource	From	To	Type
2025-06-20	216.191.0.0/16	Allstream Corp. 🇨🇦 CA ARIN	Zayo Bandwidth 🇺🇸 US ARIN	M&A

Origin ASN

AS6461

ZAYO-6461 - Zayo Bandwidth

Related Prefixes

More prefixes of AS6461

All prefixes of AS6461 →

Geolocation

Country🇺🇸United StatesUS

RegionColorado

CityDenver (Central)

Coordinates39.7505, -105.0030 ↗

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/216.191.0.0/16

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

curl -s "https://api.ipctl.io/v1/prefix/216.191.0.0/16" | jq

External Links

RIPEstat