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IPv4 address

151.154.223.155

An address in Chicago, Illinois, United States, announced by Sargent & Lundy Engineers (AS26551). It is in one database: Hosting IP.

6 of 20 address-keyed databases hold it

Summary
Hostname
host.sargentlundy.com
Registered to
Sargent & Lundy Engineers
Network type
Business
Anycast
No

Anonymity

Whether the address hides someone else: a VPN, Tor, a relay, a proxy pool, or a hosting range.

1 of 7 hold it
Hosting IPHolds it
Confidence
medium
Last seen
2026-09-30

Ownership

Who holds the address: the AS announcing it, the registry record, the abuse contact and its name in DNS.

3 of 5 hold it
IP ASNHolds it
AS number
AS26551
Name
Sargent & Lundy Engineers
RPKI
not found
Type
Business
Domain
sargentlundy.com
Registered in
United States
IP WhoisHolds it
Name
Sargent & Lundy Engineers
Handle
SLCHICAGO
Organization
SLE-1
Status
allocation
Registry
arin
Domain
sargentlundy.com
Name
Christine Berns
Phone
+1-312-269-3598
Address
55 E. Monroe St., Chicago, IL, 60603
Network
151.154.0.0-151.154.255.255
Not seen inIP RWHOISIP RDNS

Geolocation

Where the address is, and what that place uses.

2 of 2 hold it
City
Chicago
Region
Illinois
Continent
North America
Timezone
America/Chicago
Currency
USD
Name
Dollar
Symbol
$

Network

What kind of network it is on: a mobile carrier, an anycast service, a CDN edge.

0 of 3 hold it

Probe

What our own internet-wide measurement found listening on it.

0 of 3 hold it
00 · Evaluate

Test the real build first.

An evaluation license puts a full current build in your hands — every row, every column, no sampling — so you can measure it against your own traffic before anyone talks about terms.

01 · License

Then license what you use.

Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell — priced by scope, not by seat.
Annual terms, a named contact, and flexible payment terms — monthly, quarterly or yearly.