IP address

Search at other sites:

.00171.37.21.24771-37-21-247.tukw.qwest.net

Shodan(more info)

Passive DNS

IP blacklists

Spamhaus PBL ISP

71.37.21.247 was recently listed on the Spamhaus PBL ISP blacklist, but currently it is not.

Description: The Spamhaus PBL is a DNSBL database of end-user IP address ranges which should not be delivering unauthenticated SMTP email to any Internet mail server except those provided for specifically by an ISP for that customer's use.
Type of feed: secondary (DNSBL) (feed detail page)

Last checked at: 2026-11-06 16:23:40.866000
Was present on blacklist at: 2026-10-30 16:23, 2026-11-06 16:23

Threat categories

TL	Role	Category	Details
25	src	—

---

Warden events (1)

2026-10-30

AnomalyTraffic (node.6a1878): 1

Residential proxy info (data provided by Layer3 Intel)

Last seen: 2026-11-03 23:34:35}

Percent days seen: 73 %

Networks: PROXYEMPIRE, BYTEFUL, FLOPPYDATA, PROXYMA, AKE.NET, ENIGMAPROXY, NOVAPROXY, VANTAGEPROXIES, WEALTHPROXIES, RAINPROXY, FASTPROXY_BASIC, TRUEPROXIES_LITE, LUDAXPROXY_BASIC

Details: https://layer3intel.com/context/71.37.21.247

Origin AS

AS209 - CENTURYLINK-US-LEGACY-QWEST

BGP Prefix

71.37.0.0/18

geo

United States, Saint Cloud

🕑 America/Chicago

hostname

71-37-21-247.tukw.qwest.net

hostname_class

['isp', 'ip_in_hostname']

Address block ('inetnum' or 'NetRange' in whois database)

71.32.0.0 - 71.39.255.255

last_activity

2026-10-30 16:22:40

last_warden_event

2026-10-30 16:22:40

rep

0.0005604052189455144

reserved_range

0

ts_added

2026-10-30 16:23:38.674000

ts_last_update

2026-11-10 16:23:40.836000

Warden event timeline

DShield event timeline

Presence on blacklists