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CIDR
/19 · 8.2K IPs
ASN
Signet B.V.
Reverse DNS
supplydemand.careerbuilder.com
Last scanned 3 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.

81/100
Trusted
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

DNS records

Reverse DNS (PTR)
ams-wav-prod.btw.com
Forward-confirmed (FCrDNS)
✗ Mismatch
PTR TTL
86400 s
Reverse DNS last checked
2026-09-18 10:01 UTC
Forward DNS last checked
2026-09-18 10:01 UTC

Forward DNS records for ams-wav-prod.btw.com

TypeValuePriorityTTL
A 102.68.83.12 1800s
A 102.68.83.80 1800s
A 103.146.23.191 1800s
A 103.29.182.68 1800s
A 103.29.182.70 1800s
A 103.29.182.72 1800s
A 103.29.182.76 1800s
A 103.70.136.111 1800s
A 107.174.236.12 1800s
A 108.163.134.153 1800s
A 123.253.33.71 1800s
A 136.144.211.181 1800s
A 139.99.68.106 1800s
A 141.138.138.161 1800s
A 143.20.31.215 1800s
A 146.70.158.185 1800s
A 157.254.223.89 1800s
A 159.253.44.40 1800s
A 159.253.44.42 1800s
A 159.253.45.189 172800s
A 160.25.75.246 1800s
A 162.210.192.154 1800s
A 163.172.120.207 172800s
A 167.86.83.10 1800s
A 169.58.245.123 1800s
A 169.58.99.41 1800s
A 173.208.148.78 1800s
A 173.234.157.88 172800s
A 178.162.227.79 1800s
A 184.107.131.106 1800s
A 184.107.131.90 1800s
A 185.103.196.205 1800s
A 185.106.22.175 1800s
A 185.163.47.232 1800s
A 185.174.29.100 1800s
A 185.174.29.102 1800s
A 185.174.29.104 1800s
A 185.174.29.12 1800s
A 185.174.29.14 1800s
A 185.199.224.42 1800s
A 185.199.224.46 1800s
A 185.227.137.221 1800s
A 185.28.61.182 1800s
A 185.33.53.233 1800s
A 185.83.147.21 1800s
A 188.214.30.143 1800s
A 192.227.186.156 1800s
A 192.227.186.158 1800s
A 193.29.187.207 172800s
A 198.20.107.251 1800s
A 198.20.107.253 1800s
A 198.23.153.66 1800s
A 198.23.190.162 1800s
A 198.23.211.197 1800s
A 198.23.219.94 1800s
A 198.46.135.157 1800s
A 198.54.117.242 15s
A 207.180.232.172 1800s
A 209.54.98.27 1800s
A 212.32.226.176 1800s
A 212.83.132.174 1800s
A 212.83.142.141 1800s
A 213.227.150.111 1800s
A 213.227.150.113 1800s
A 213.227.150.115 1800s
A 23.106.33.183 1800s
A 23.110.255.200 1800s
A 37.97.188.208 1800s
A 37.97.209.40 1800s
A 38.45.72.197 172800s
A 42.112.26.61 1800s
A 5.254.57.175 172800s
A 5.79.90.153 1800s
A 50.6.173.62 1800s
A 50.6.197.216 1800s
A 51.159.64.240 1800s
A 51.195.73.125 1800s
A 51.222.103.24 1800s
A 51.222.162.11 1800s
A 51.222.162.15 1800s
A 51.222.162.9 1800s
A 51.222.164.148 1800s
A 51.222.164.149 1800s
A 51.222.209.121 1800s
A 51.222.72.39 1800s
A 51.222.90.237 172800s
A 51.38.247.236 1800s
A 51.79.197.77 1800s
A 51.79.199.215 1800s
A 51.89.126.153 172800s
A 51.89.85.80 1800s
A 54.39.2.45 1800s
A 54.39.33.68 1800s
A 62.210.124.155 1800s
A 64.120.19.196 1800s
A 64.120.19.199 1800s
A 66.181.33.109 1800s
A 66.181.33.113 1800s
A 66.63.188.67 1800s
A 66.63.188.68 1800s
A 67.205.116.214 1800s
A 69.162.118.245 1800s
A 74.63.239.91 1800s
A 81.30.145.177 1800s
A 81.30.145.186 1800s
A 81.7.13.98 1800s
A 85.10.51.30 1800s
A 85.121.54.86 1800s
A 85.17.253.34 1800s
A 85.17.253.36 1800s
A 85.31.186.30 1800s
A 85.31.186.39 1800s
A 85.31.186.47 1800s
A 89.43.28.19 1800s
A 91.143.81.9 1800s
A 91.143.84.72 1800s
A 91.143.84.76 1800s
A 91.143.88.73 1800s
A 93.113.60.247 1800s
A 93.113.62.230 1800s
A 93.113.62.233 1800s
A 94.102.13.222 1800s
A 95.173.165.206 1800s
A 95.173.177.130 1800s
A 95.173.177.28 1800s
A 95.173.177.30 1800s
A 95.173.180.213 1800s
A 95.211.28.20 1800s
A 96.44.159.82 1800s
NS failed-whois-verification.namecheap.com
NS verify-contact-details.namecheap.com
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 136.144.211.181

CIDR range
136.144.192.0/19
IP range (int)
2,291,187,712 — 2,291,195,903
Prefix length
/19
Organization
Signet B.V.
ASN
AS20857
ASN name
Signet B.V.
Location
Groningen, Groningen, The Netherlands
Coordinates
53.211000, 6.600800
Accuracy radius
50 km
Postal code
9723
Regional Internet Registry
RIPE
Allocated
1989-08-29
Data source(s)
maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
Last updated
2026-09-15 04:08:15

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

Announced prefix
Origin AS
Announcement samples
19,556
Last seen
2026-09-18 16:16:01

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 136.144.128.0/17.

Frequently Asked Questions

Who owns 136.144.211.181?

136.144.211.181 is allocated to Signet B.V. (AS20857), registered in Groningen, The Netherlands.

Where is 136.144.211.181 located?

The geolocation for 136.144.211.181 maps to Groningen, 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 136.144.211.181 on?

136.144.211.181 belongs to the 136.144.192.0/19 network block announced by AS20857. This range contains 8,192 addresses.

Does 136.144.211.181 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: 2026-09-15 06:54:40 UTC
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