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IPv4 Address

45.43.90.80

First Server Limited AS200740 · First Server Limited The Netherlands North Holland Amsterdam RIPE
Within
45.43.88.0/22
CIDR
45.43.90.0/23
/23 · 512 IPs
ASN
AS200740
First Server Limited
Reverse DNS
microsoft.com
Last scanned 15 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.

78/100
Moderate
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)
microsoft.com
Forward-confirmed (FCrDNS)
✗ Mismatch
PTR TTL
3600 s
Reverse DNS last checked
2026-07-21 11:14 UTC
Forward DNS last checked
2026-07-21 11:14 UTC

Forward DNS records for microsoft.com

TypeValuePriorityTTL
A 13.107.213.40 — 3600s
A 13.107.213.68 — 172800s
A 13.107.226.40 — 172800s
A 13.107.226.41 — 172800s
A 13.107.226.42 — 172800s
A 13.107.226.44 — 172558s
A 13.107.226.67 — 172800s
A 13.107.226.70 — 172800s
A 13.107.246.40 — 3600s
A 13.107.246.68 — 172800s
A 13.107.253.40 — 172800s
A 13.107.253.41 — 172800s
A 13.107.253.42 — 172800s
A 13.107.253.44 — 172558s
A 13.107.253.67 — 172800s
A 13.107.253.70 — 172800s
A 150.171.109.100 — 172800s
A 150.171.109.101 — 172800s
A 150.171.109.113 — 172800s
A 150.171.109.114 — 3600s
A 150.171.109.115 — 1136s
A 150.171.109.117 — 2916s
A 150.171.109.118 — 56s
A 150.171.109.145 — 172800s
A 150.171.109.150 — 172800s
A 150.171.109.193 — 172800s
A 150.171.109.194 — 172800s
A 150.171.109.51 — 172800s
A 150.171.109.53 — 172798s
A 150.171.109.65 — 2053s
A 150.171.109.71 — 172800s
A 150.171.109.72 — 172800s
A 150.171.109.73 — 84s
A 150.171.109.74 — 172800s
A 150.171.109.77 — 2544s
A 150.171.110.102 — 172800s
A 150.171.110.103 — 172800s
A 150.171.110.104 — 172800s
A 150.171.110.117 — 172800s
A 150.171.110.147 — 172800s
A 150.171.110.178 — 172800s
A 150.171.110.194 — 2051s
A 150.171.110.97 — 172800s
A 150.171.110.98 — 172800s
AAAA 2603:1061:14:160::1 — 172800s
AAAA 2603:1061:14:161::1 — 172800s
AAAA 2603:1061:14:165::1 — 172800s
AAAA 2603:1061:14:166::1 — 172800s
AAAA 2603:1061:14:167::1 — 172800s
AAAA 2603:1061:14:174::1 — 172800s
AAAA 2603:1061:14:191::1 — 172800s
AAAA 2603:1061:14:1b2::1 — 172800s
AAAA 2603:1061:14:1c0::1 — 2399s
AAAA 2603:1061:14:1c1::1 — 497s
AAAA 2603:1061:14:20::1 — 172800s
AAAA 2603:1061:14:32::1 — 172800s
AAAA 2603:1061:14:34::1 — 172800s
AAAA 2603:1061:14:45::1 — 1526s
AAAA 2603:1061:14:46::1 — 172800s
AAAA 2603:1061:14:48::1 — 172800s
AAAA 2603:1061:14:49::1 — 172800s
AAAA 2603:1061:14:4c::1 — 2411s
AAAA 2603:1061:14:63::1 — 172800s
AAAA 2603:1061:14:64::1 — 172800s
AAAA 2603:1061:14:70::1 — 172800s
AAAA 2603:1061:14:71::1 — 172800s
AAAA 2603:1061:14:72::1 — 172800s
AAAA 2603:1061:14:74::1 — 172800s
AAAA 2603:1061:14:75::1 — 172800s
AAAA 2603:1061:14:93::1 — 172800s
AAAA 2603:1061:14:c0::1 — 172800s
AAAA 2603:1061:14:c1::1 — 172800s
AAAA 2620:1ec:29:1::40 — 172800s
AAAA 2620:1ec:29:1::41 — 126s
AAAA 2620:1ec:29:1::70 — 172800s
AAAA 2620:1ec:46::40 — 3600s
AAAA 2620:1ec:46::48 — 172800s
AAAA 2620:1ec:48:1::40 — 172800s
AAAA 2620:1ec:48:1::41 — 126s
AAAA 2620:1ec:48:1::70 — 172800s
AAAA 2620:1ec:bdf::40 — 3600s
AAAA 2620:1ec:bdf::48 — 172800s
MX microsoft-com.mail.protection.outlook.com 10 —
NS ns1-39.azure-dns.com — —
NS ns2-39.azure-dns.net — —
NS ns3-39.azure-dns.org — —
NS ns4-39.azure-dns.info — —
TXT 1password-site-verification=35ZTURTFFFDC5BW7GFQKRJ77QM — —
TXT MS=ms79629062 — —
TXT _zx2p8gpzv720db2aqmozy4jhwk2nl43 — —
TXT airtable-verification=79a09e4a8013ff5737798ffb4ea88eee — —
TXT anthropic-domain-verification-phksss=GZrrKDUR4klRLFCvxyOvqcNGE — —
TXT atlassian-domain-verification=Sn5AwyIdVgkaRaJA/IKj7ZFMnWeCBnppa9bXGLuJvsakRHH4lYoBxS8g7GVlud9M — —
TXT atlassian-domain-verification=xvoaqRfxSg3PnlVnR4xCSOlKyw1Aln0MMxRiKXnwWroFG7vI76TUC8xYb03MwMXv — —
TXT d365mktkey=3l6dste9txazu0Qd2zu4135PUB4E35txLxyzJxjkPbsx — —
TXT d365mktkey=3uc1cf82cpv750lzk70v9bvf2 — —
TXT d365mktkey=6358r1b7e13hox60tl1uagv14 — —
TXT d365mktkey=8fEQahTresJms7tZGxGFr94T1zDz36oCbUt1LJc99mox — —
TXT d365mktkey=Fu49WtSTeClkHtK7S14227RIVpGwwGrzEsO6RVs1I2Ax — —
TXT d365mktkey=JlXV17lfZjyvWxNje1qiP390ACSKzTxo5mGqZ3V2BmYx — —
TXT d365mktkey=PNcDqkW71x8VOUhcE96aGM4l5PYX1gnlRl6ieXUl5eMx — —
TXT d365mktkey=QDa792dLCZhvaAOOCe2Hz6WTzmTssOp1snABhxWibhMx — —
TXT d365mktkey=SxDf1EZxLvMwx6eEZUxzjFFgHoapF8DvtWEUjwq7ZTwx — —
TXT d365mktkey=ZGFU0tlXPekPusNHPo5QQQWpVf0gic0xpuKroNy3NQEx — —
TXT d365mktkey=heYmJ57sWrwMjCgIG1xRwTREJrQokUIDtBcNfGuxoWQx — —
TXT d365mktkey=j2qHWq9BHdaa3ZXZH8x64daJZxEWsFa0dxDeilxDoYYx — —
TXT d365mktkey=wbU64GRacxVEQxwcLSQnx0zisXLYzgUbfvsufIqO9ZUx — —
TXT dobtdihqagnr18hea8uv1h1mvq — —
TXT docusign=d5a3737c-c23c-4bd0-9095-d2ff621f2840 — —
TXT facebook-domain-verification=fwzwhbbzwmg5fzgotc2go51olc3566 — —
TXT fg2t0gov9424p2tdcuo94goe9j — —
TXT google-site-verification=GfDnTUdATPsK1230J0mXbfsYw-3A9BVMVaKSd4DcKgI — —
TXT google-site-verification=M--CVfn_YwsV-2FGbCp_HFaEj23BmT0cTF4l8hXgpvM — —
TXT google-site-verification=mEAmcTy1e8jIB9W6ENPk2GDg9hjuNytQQRGlK0hPm0c — —
TXT google-site-verification=pjPOauSPcrfXOZS9jnPPa5axowcHGCDAl1_86dCqFpk — —
TXT google-site-verification=uFg3wr5PWsK8lV029RoXXBBUW0_E6qf1WEWVHhetkOY — —
TXT google-site-verification=uhh5_jbxpcQgnb-A7gDIjlrr5Ef34lA2t2_BAveYpnk — —
TXT hcp-domain-verification=3ce174a8b9fba88909633ab13eb1d81ce0123454745d66e500052ed84b7248a1 — —
TXT hpe-greenlake-domain-verification=34355352334a353773612d526f48514632424b4263426b496b6254335247684c — —
TXT hpe-greenlake-domain-verification=495143304a3330533363357a57684f6335556f316f55654675523541464d3954 — —
TXT hubspot-developer-verification=OTQ5NGIwYWEtODNmZi00YWE1LTkyNmQtNDhjMDMxY2JjNDAx — —
TXT linear-domain-verification=iuq6saifcnbe — —
TXT liveramp-site-verification=kxcV8fDH_FUNUZQEcAO6lwgim47f_hNLgMP4VG0PF_Q — —
TXT mixpanel-domain-verify=5803bc4c-5bb6-4ce1-8076-753800097373 — —
TXT ms-domain-verification=1c4e4677-e58f-4117-8d61-e5b2810388c2 — —
TXT ms-domain-verification=25524f4b-1476-489c-a086-30f4c5016ecc — —
TXT ms-domain-verification=478640ad-6524-43d5-86c4-a914804b9e93 — —
TXT ms-domain-verification=561512fc-b4ba-4ac7-a946-e464c8f49f1b — —
TXT ms-domain-verification=65f91178-9dfb-41cd-929d-08d1a38ed607 — —
TXT ms-domain-verification=d6545068-89f7-4432-b947-0b137e8a9fe3 — —
TXT openai-domain-verification=dv-sFtCvKOlWoe31gpoSvs7cqsP — —
TXT sitecore-domain-verification=1d46cb5467624e33a408d14324874088 — —
TXT t7sebee51jrj7vm932k531hipa — —
TXT v=DMARC1; p=reject; pct=100; rua=mailto:itex-rua@microsoft.com; ruf=mailto:itex-ruf@microsoft.com; fo=1 — —
TXT v=MCPv1; k=ecdsap384; p=A/Mf6IKdZzcHfBvpiVz9rkdPTIcCP5IbRDdEkeP3PgXEXF3mNjorahOwaYlMINBF5A== — —
TXT v=MCPv1; k=ecdsap384; p=A8a5Z0fMroXSzLT+NXb33SxWJZ7UTZdFO3qcknLCGeGpLOLeFpxT4YamxRLfZKUaHg== — —
TXT v=MCPv1; k=ecdsap384; p=A8qndBCDJGtFF2+3v/IPIMmM0SaVcrJBoSue7rKob6sUeK7QGeFuWkrtvze3AiqUDA== — —
TXT v=MCPv1; k=ecdsap384; p=Al9O7vaY4u02Vzh6c6i9ie3AFUHq9j3VK9rFROTJsCx5Rh0ailSEc3/k8fyCbjrHLQ== — —
TXT v=MCPv1; k=ecdsap384; p=An4mJIFLRys9h1EvjX18SJs5p1uEF5MHcs2JJLYPrI48C5Qt9FpaZEM0sQTV4JvNYw== — —
TXT v=MCPv1; k=ecdsap384; p=AoHTKEi2W8L2P8cf9CoDicIxYiuttTkwtIeFOqYCewBGoRZiiF+9/92saUkIDERGAA== — —
TXT v=MCPv1; k=ecdsap384; p=AorzdBrk9vGOZL9e5z5QMIwNhati9xM/jjeNpBQkzfdZ6nhG6KQTaVQRBr06xvTvIg== — —
TXT v=MCPv1; k=ecdsap384; p=AqXeTHJ/1FCYeuvJ8dc1B+X3uHaa7m2W0s31vzL4opnrJlSaBdtbWTY8Ti5WiZnu9Q== — —
TXT v=MCPv1; k=ecdsap384; p=As/XxnDWZFxFwHvRZj+HbG5/ImtAeabLkiOWu1h7wCJQFAR216E9HoYQ5Hy6o7StoQ== — —
TXT v=MCPv1; k=ecdsap384; p=Asc8WWov6gsmCCzn4CSrwRuJIh5SqvaitKz/LlTW+SD54lLC52wzcnWhlTI416p2vw== — —
TXT v=MCPv1; k=ecdsap384; p=Atv9t87le3AkxabGQAy75Wju8M3YATC1mPNp/3BQepwz5KS+4VwTtTq7ZSjHAPFXzw== — —
TXT v=MCPv1; k=ecdsap384; p=AzTrmHtbRqr8G+xzm+T4LvNfN5678x6/tlK7kC2enHfH73WkH6AHXsQeXog0+RVjlg== — —
TXT v=MCPv1; k=ecdsap384; p=Azw9+u4M8RoH+bxJidKAZzGDmsPkzY1N4cO7rB/uC5x1RBoNfMyBlH/ott0lpo4pOQ== — —
TXT v=spf1 include:_spf-a.microsoft.com include:_spf-b.microsoft.com include:_spf-c.microsoft.com include:_spf-ssg-a.msft.net include:_spf1-meo.microsoft.com -all — —
TXT workplace-domain-verification=lK0QDLk73xymCYMKUXNpfKAT8TY5Mx — —
TXT zoom-domain-verification=ZOOM_verify_e97a3d385acb4c47b9b924609a280524 — —
CAA contactemail caarecordaware@microsoft.com 0 —
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 45.43.90.80

CIDR range
45.43.90.0/23
IP range (int)
757,815,808 — 757,816,319
Prefix length
/23
Organization
First Server Limited
ASN
AS200740
ASN name
First Server Limited
Location
Amsterdam, North Holland, The Netherlands
Coordinates
52.371600, 4.888300
Accuracy radius
20 km
Postal code
1000
Regional Internet Registry
RIPE
Allocated
2015-03-30
Data source(s)
ipinfo_lite, maxmind_city, maxmind_asn, maxmind_country
Last updated
2026-07-21 04:11:34

BGP Routing

Live BGP anomalies →

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

Announced prefix
45.43.90.0/23
Origin AS
AS200740
Announcement samples
5,137
Last seen
2026-07-21 11:21:09

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 New Allocation — GB

See the full history for 45.43.88.0/22.

Frequently Asked Questions

Who owns 45.43.90.80?

45.43.90.80 is allocated to First Server Limited (AS200740), registered in Amsterdam, The Netherlands.

Where is 45.43.90.80 located?

The geolocation for 45.43.90.80 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 45.43.90.80 on?

45.43.90.80 belongs to the 45.43.90.0/23 network block announced by AS200740. This range contains 512 addresses.

Does 45.43.90.80 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.

45.43.90.72 45.43.90.73 45.43.90.74 45.43.90.75 45.43.90.76 45.43.90.77 45.43.90.78 45.43.90.79 45.43.90.81 45.43.90.82 45.43.90.83 45.43.90.84 45.43.90.85 45.43.90.86 45.43.90.87 45.43.90.88 See all in 45.43.88.0/22 →

Related

/24 neighborhood /16 block /8 block All AS200740 ranges All First Server Limited ranges All The Netherlands IPs All IPs in North Holland All IPs in Amsterdam
Last updated: 2026-07-21 04:39:35 UTC
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