IP address

Search at other sites:

.37071.251.63.20pool-71-251-63-20.washdc.east.verizon.net

Shodan(more info)

Passive DNS

IP blacklists

UCEPROTECT L1

71.251.63.20 is listed on the UCEPROTECT L1 blacklist.

Description: UCEPROTECT-NETWORK list of spam IPs.
Type of feed: primary (feed detail page)

Last checked at: 2026-05-16 15:45:00.558000
Was present on blacklist at: 2026-05-09 23:45, 2026-05-10 15:45, 2026-05-10 23:45, 2026-05-11 07:45, 2026-05-11 15:45, 2026-05-11 23:45, 2026-05-12 07:45, 2026-05-12 15:45, 2026-05-12 23:45, 2026-05-13 07:45, 2026-05-13 15:45, 2026-05-13 23:45, 2026-05-14 07:45, 2026-05-14 15:45, 2026-05-14 23:45, 2026-05-15 07:45, 2026-05-15 15:45, 2026-05-15 23:45, 2026-05-16 07:45, 2026-05-16 15:45

Spamhaus PBL ISP

71.251.63.20 is listed on the Spamhaus PBL ISP blacklist.

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: 2026-05-17 00:00:52.629000
Was present on blacklist at: 2026-05-10 00:00, 2026-05-17 00:00

Threat categories

TL	Role	Category	Details
41	src	—

---

Origin AS

AS701 - UUNET

BGP Prefix

71.251.48.0/20

geo

United States, Gaithersburg

🕑 America/New_York

hostname

pool-71-251-63-20.washdc.east.verizon.net

hostname_class

['isp', 'ip_in_hostname']

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

71.248.0.0 - 71.251.255.255

rep

0.3700394750525634

reserved_range

0

ts_added

2026-05-10 00:00:45.106000

ts_last_update

2026-05-17 00:00:52.714000

Warden event timeline

DShield event timeline

Presence on blacklists