66.21.18.0/24

Residential-proxy exits

Proxy exits

1

0.39% of its addresses · 30 days

Always-on exits

1

100% of its exits

Providers

4

selling exits here

Oct 10, 2026 – Nov 8, 2026

Exits seen per day

1.2K observations

Proxy providers listing exits

BlurPath
CliProxy
MoMoProxy
NovProxy

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
66.20.0.0/15	131,072	BELLSNET-BLK8	AT&T Enterprises, LLC (AEL-360) · US	Direct Allocation	Sep 14, 2000	abuse@att.net
└ 66.21.18.0/29	8	ROCKTENN61-18-0	unknown	—	—	—
└ 66.21.18.8/29	8	BCM-ONE-64-18-8	unknown	—	—	—
└ 66.21.18.16/29	8	BCM-ONE-64-18-16	unknown	—	—	—
└ 66.21.18.24/29	8	DEPARTME55-18-24	unknown	—	—	—
└ 66.21.18.32/29	8	HOGAN-LA91-18-32	unknown	—	—	—
└ 66.21.18.40/29	8	NTEGRATE95-18-40	unknown	—	—	—
└ 66.21.18.48/29	8	FUSION-L23-18-48	unknown	—	—	—
└ 66.21.18.56/29	8	BBU-INC630-18-56	unknown	—	—	—
└ 66.21.18.64/29	8	ARROW-EX75-18-64	unknown	—	—	—
└ 66.21.18.80/29	8	OLD-TOWN94-18-80	unknown	—	—	—
└ 66.21.18.88/29	8	ORANGE-C95-18-88	unknown	—	—	—
└ 66.21.18.96/29	8	AMERICAN16-18-96	unknown	—	—	—
└ 66.21.18.104/30	4	NEW-HORI51-18-104	unknown	—	—	—
└ 66.21.18.112/29	8	LOWES-CO55-18-112	unknown	—	—	—
└ 66.21.18.120/29	8	ALTAWORX83-18-120	unknown	—	—	—
└ 66.21.18.128/29	8	A7-ELEVE14-18-128	unknown	—	—	—
└ 66.21.18.136/29	8	ULTIMATE95-18-136	unknown	—	—	—
└ 66.21.18.144/28	16	MARRIOTT51-18-144	unknown	—	—	—
└ 66.21.18.160/29	8	CLEMENS-82-18-160	unknown	—	—	—
└ 66.21.18.168/29	8	ORANGE-B62-18-168	unknown	—	—	—
└ 66.21.18.176/29	8	ADVANCED13-18-176	unknown	—	—	—
└ 66.21.18.184/29	8	ORANGE-B34-18-184	unknown	—	—	—
└ 66.21.18.192/29	8	NEW-HORI88-18-192	unknown	—	—	—
└ 66.21.18.200/29	8	ACC-ADVA29-18-200	unknown	—	—	—
└ 66.21.18.208/29	8	LOWES-CO25-18-208	unknown	—	—	—
└ 66.21.18.216/29	8	IPFONE-S73-18-216	unknown	—	—	—
└ 66.21.18.224/29	8	ACC-VERI84-18-224	unknown	—	—	—
└ 66.21.18.232/29	8	ACC-PHOT87-18-232	unknown	—	—	—
└ 66.21.18.240/29	8	SPECTROT84-18-240	unknown	—	—	—
└ 66.21.18.248/29	8	ACC-DANA65-18-248	unknown	—	—	—

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

256 addresses

Type	Addresses	Share	Ranges
Business	244	95%	30
Residential	12	4.7%	2

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Announced by

Covering announcement 66.20.0.0/15

Prefix: 66.20.0.0/15
Announced by: AS6389 AT&T Enterprises, LLC
Type: Residential
Proxy exits: 5
Always-on exits: 1
RPKI: No RPKI
Netname: BELLSNET-BLK8
Registrant: AT&T Enterprises, LLC
RIR: ARIN

Origin network

AS6389

US

Name: AT&T Enterprises, LLC
Type: Internet provider
Registered: Mar 28, 1996
Domain: att.com
Industry: Internet Service Provider (ISP)
Spamhaus ASN-DROP: not listed