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CIDR
/23 · 512 IPs
ASN
United States Nuclear Regulatory Commission
Reverse DNS
nrc.gov
Last scanned 12 hr 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.

86/100
Trusted
How this score is built

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

DNS records

Reverse DNS (PTR)
nrc.gov
Forward-confirmed (FCrDNS)
✓ Confirmed
PTR TTL
28800 s
Reverse DNS last checked
2026-07-22 12:25 UTC
Forward DNS last checked
2026-07-22 12:25 UTC

Forward DNS records for nrc.gov

TypeValuePriorityTTL
A 148.184.180.35 28800s
MX mail4.nrc.gov 10
MX mail5.nrc.gov 10
MX r4mail1.nrc.gov 10
MX r4mail2.nrc.gov 10
NS a18-65.akam.net
NS a3-67.akam.net
NS a8-65.akam.net
NS ns0036.secondary.cloudflare.com
NS ns0132.secondary.cloudflare.com
TXT MS=ms97771157
TXT _j4w1bxhrpdagb2e3meaaf20mrzymomv
TXT apple-domain-verification=UHb4ziZa9mhVGGpv
TXT box-domain-verification=188d55b7f9bc574046e7967ec392d5695e2782dfd9cd73214eef3219cdd47807
TXT cloudflare_dashboard_sso=bcaf9540a30612b1c22367755145941d
TXT docusign=1462ecf3-011c-4738-b1e0-57db57790a7b
TXT domain-verification=aftIcKeXgQOvVC-V-8W97iyy7La0cyY1d9bUoyLbepg
TXT google-site-verification=ViHe5l7h-Y_ZVr7Glpo6LrgehWYSTY2gT2R85IWPj4I
TXT identrust_validate=46GtRVn6sZ25pMCvgN7Sf58oxv00fh4m065o49U19esP
TXT openai-domain-verification=dv-dXKnNcRdWiRhUEJuwutwuCBK
TXT v=DMARC1; p=reject; pct=100; rua=mailto:reports@dmarc.cyber.dhs.gov; ruf=mailto:postmaster@nrc.gov;
TXT v=spf1 ip4:148.184.176.0/24 ip4:148.184.230.0/24 ip4:148.184.179.0/24 ip4:148.184.180.0/24 ip4:148.184.231.25 -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 148.184.180.35

CIDR range
148.184.180.0/23
IP range (int)
2,495,132,672 — 2,495,133,183
Prefix length
/23
Organization
United States Nuclear Regulatory Commission
ASN
AS27016
ASN name
United States Nuclear Regulatory Commission
Location
Fairfax, Virginia, United States
Coordinates
38.861600, -77.266300
Accuracy radius
20 km
Postal code
22031
Regional Internet Registry
ARIN
Allocated
1991-01-01
Data source(s)
maxmind_asn, ipinfo_lite, maxmind_city, maxmind_country
Last updated
2026-07-09 12:20:38

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

Announced prefix
Origin AS
Announcement samples
3,257
Last seen
2026-07-23 00:27:00

Frequently Asked Questions

Who owns 148.184.180.35?

148.184.180.35 is allocated to United States Nuclear Regulatory Commission (AS27016), registered in Fairfax, United States.

Where is 148.184.180.35 located?

The geolocation for 148.184.180.35 maps to Fairfax, United States 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 148.184.180.35 on?

148.184.180.35 belongs to the 148.184.180.0/23 network block announced by AS27016. This range contains 512 addresses.

Does 148.184.180.35 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: 2026-07-23 00:36:47 UTC
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