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CIDR
/22 · 1.0K IPs
ASN
RootLayer Web Services Ltd.
Reverse DNS
customer-rental.rootlayer.net
Last scanned 2 days ago
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.

40/100
Caution
How this score is built
Threat-intel listings
⚠ Spamhaus ASN-DROP

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

DNS records

Reverse DNS (PTR)
customer-rental.rootlayer.net
Forward-confirmed (FCrDNS)
Not checked
PTR TTL
3600 s
Reverse DNS last checked
2026-07-19 04:22 UTC
Forward DNS last checked
2026-07-19 04:22 UTC

Forward DNS records for customer-rental.rootlayer.net

TypeValuePriorityTTL
A 45.137.21.12 172800s
A 45.137.21.213 172800s
MX customer-rental.rootlayer.net 0
NS ns1.rootlayer.net
NS ns2.rootlayer.net
TXT v=DMARC1;p=quarantine;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400
TXT v=spf1 +mx +a +ip4:45.137.21.12 ~all
TXT v=spf1 ip4:45.137.21.12 +mx +a ~all
every IP & sub-domain we've seen under this domain

Reverse & forward DNS collected by the WorldIP scanner fleet — FCrDNS confirms the PTR hostname resolves back to this IP.

Network Allocation for 45.137.20.37

CIDR range
45.137.20.0/22
IP range (int)
763,958,272 — 763,959,295
Prefix length
/22
Organization
RootLayer Web Services Ltd.
ASN
AS51447
ASN name
RootLayer Web Services Ltd.
Location
Amsterdam, North Holland, The Netherlands
Coordinates
52.379600, 4.877800
Accuracy radius
20 km
Postal code
1015
Regional Internet Registry
ARIN
Allocated
2019-08-05
Data source(s)
maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
Last updated
2026-07-11 09:20:08

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

Announced prefix
Origin AS
Announcement samples
13,993
Last seen
2026-07-19 13:47:06

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
2026-05-10 Country Change NL BD

See the full history for 45.137.20.0/22.

Frequently Asked Questions

Who owns 45.137.20.37?

45.137.20.37 is allocated to RootLayer Web Services Ltd. (AS51447), registered in Amsterdam, The Netherlands.

Where is 45.137.20.37 located?

The geolocation for 45.137.20.37 maps to Amsterdam, The Netherlands 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 45.137.20.37 on?

45.137.20.37 belongs to the 45.137.20.0/22 network block announced by AS51447. This range contains 1,024 addresses.

Does 45.137.20.37 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

Last updated: 2026-07-17 22:11:16 UTC
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