Skip to main content
CIDR
/22 · 1.0K IPs
ASN
Natwest Markets PLC
Reverse DNS
No PTR record
Blocklisted
Checking…
Scanning blocklists

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

80/100
Trusted
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

Network Allocation for 155.136.63.52

CIDR range
155.136.60.0/22
IP range (int)
2,609,396,736 — 2,609,397,759
Prefix length
/22
Organization
Natwest Markets PLC
ASN
AS21054
ASN name
Natwest Markets PLC
Location
United Kingdom
Coordinates
51.496400, -0.122400
Accuracy radius
200 km
Regional Internet Registry
ARIN
Allocated
1991-11-08
Data source(s)
maxmind_asn, ipinfo_lite, maxmind_city, maxmind_country
Last updated
2026-06-09 06:05:32

Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.

Announced prefix
Origin AS
Announcement samples
6,990
Last seen
2026-07-20 15:21:00

RIR Ownership History

Atom feed ⇲

Allocation changes captured weekly from regional internet registry (RIR) delegation files for ranges that have contained this IP.

Date Event From To
2026-05-10 RIR Transfer arin ripe

See the full history for 155.136.0.0/16.

Frequently Asked Questions

Who owns 155.136.63.52?

155.136.63.52 is allocated to Natwest Markets PLC (AS21054), registered in United Kingdom.

Where is 155.136.63.52 located?

The geolocation for 155.136.63.52 maps to United Kingdom based on MaxMind GeoLite2 data. Accuracy depends on the provider and may represent the ISP's regional hub rather than the exact endpoint.

What network is 155.136.63.52 on?

155.136.63.52 belongs to the 155.136.60.0/22 network block announced by AS21054. This range contains 1,024 addresses.

Does 155.136.63.52 have a reverse DNS record?

Reverse DNS (PTR) records are resolved live when you visit this page. If a PTR record exists, it appears in the Reverse DNS field above. PTR records map IP addresses back to hostnames and are commonly used for email authentication and network diagnostics.

Neighbors

Other addresses in the same /24.

Related

Share