Home Prefix Lookup40.161.0.0/16

40.161.0.0/16 - TDS TELECOM (AS4181)

IPv4ARINallocatedAS4181TDS-AS - TDS TELECOM RPKI Valid

CIDR

40.161.0.0/16

IP Version

IPv4

Addresses

65.5K

Mask

/16 (255.255.0.0)

Country

🇺🇸 United States

City

Madison

RIR

ARIN

Status

allocated

Allocated

2022-04-29

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
40.161.0.0/16	AS4181 TDS-AS - TDS TELECOM	Valid	ARIN	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
40.161.0.0/16	AS4181	/16	arin

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS4181	ARIN	MNT-TDST	2022-05-02

Transfer History

Registry transfers of 40.161.0.0/16, blocks inside it, or blocks containing it.

40.161.0.0/16Transfer · 2022-04-29
Eli Lilly and Company
🇺🇸 US ARIN
→
TDS TELECOM
🇺🇸 US ARIN

Date	Resource	From	To	Type
2022-04-29	40.161.0.0/16	Eli Lilly and Company 🇺🇸 US ARIN	TDS TELECOM 🇺🇸 US ARIN	Transfer

Origin ASN

AS4181

TDS-AS - TDS TELECOM

Related Prefixes

More prefixes of AS4181

All prefixes of AS4181 →

Geolocation

Country🇺🇸United StatesUS

RegionWisconsin

CityMadison

Coordinates43.0725, -89.5247 ↗

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/40.161.0.0/16

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

curl -s "https://api.ipctl.io/v1/prefix/40.161.0.0/16" | jq

External Links

RIPEstat