slash24 Intelligence Report

Report B445DD84E8F6 · 2026-04-11 16:13 UTC · 149.72.152.0/24 · Mode: broker
A

149.72.152.0/24

Score: 98/100  ·  ESP: SendGrid
BUY — premium block
Low risk — clean block with active senders
Premium SendGrid block. 98% occupancy with 130 identified senders — high-activity block with strong reputation signal.
Active senders
250
of 254 IPs (98% occupancy)
Identified senders
130
via custom PTR records
Blacklisted
3
of 254 checked across 7/10 RBLs

Score breakdown

Brand density20.0/20
Activity density29.5/30
Blacklist clean38.9/40
ESP legitimacy10.0/10
OrganizationSendGrid, Inc.
NetworkSENDGRID-149-72-0-0-16
Registered2017-09-05
Abuse contact[email protected]
WARNING 3/10 blacklists were unreachable
Multiple RBL providers rate-limited our queries. Only 7 of 10 RBLs were checked. Consider re-running later for full coverage.
WARNING 3 IPs on moderate blacklists
IPs listed on SpamCop, Barracuda, or similar. These typically auto-expire within 24-48 hours if spam stops. Indicates recent spam activity in this block.

Adjacent /24 blocks

149.72.151.0/24
200/254 active
0/15 sampled blacklisted
HEALTHY
149.72.153.0/24
201/254 active
0/15 sampled blacklisted
HEALTHY
Why this matters: some anti-spam systems (notably Spamhaus) evaluate reputation at /23 granularity. A dirty adjacent block can cause collateral blacklisting of your block.

Senders in this block (130)

abide.co adbsafegate.com afrihost.com analitica.com.co anna.money asgtrans.es autovision.com axon.com bakaglass.nl beforepay.com.au bertramcommunications.com bestcolleges.com bluechew.com bobswatches.com brazzersplus.com broadmoor.com brooklynjeepsales.com buildmycreditscore.com businesschat.io carrington.edu chemistwarehouse.co.nz classnk.or.jp cmsmail.net coffee-roulette.com comettracker.com cookaborough.com covetfashion.com creamailer.fi creditcards.com creditspring.co.uk creditstrong.com curbio.com depop.com digitalaviationservices.com dmtc.com eclub.se edutopia.org edvoy.com ellevatenetwork.com eltezam.ae emlpayments.com.au evosus.com fleshlight.com flxprogram.com fotoinc.com gap.com.mx gopfs.com greatergood.com gyreteams.com healthtrustws.com hopewdm.org housinghelpportal.com hunniez.com iese.edu inclusa.org infodailyobjects.in inspiresolutions.com integrative9.com iowataxandtags.org jiomart.com joinclubhouse.com kakeyo.com keepersecurity.com khl.com khoros-mail.com lg.jp liblynx.com logonbox.com lunasea-slave.jp madisonhotel.de malmbergs.com mediaos.com membercentral.com mismainstay.com monkeytilt.com moviesunlimited.com nectr.com.au nestor-par-maif.fr okrx.ca ol.fr organizzei.com outlinesolutions.nl pandorabeauty.com portailmica.com premierleague.com projectsimpel.com psionline.com psychology.org.au pyramidci.com quakerwindows.com radicalstorage.com seamlessinvites.com sense.org.uk servicetitanmail.io shopify silkcode.de sipadconnect.fr skrapp.io solucx.com.br sts.pl suncoastcreditunion.com support-lavie.jp surepact.com swanlibraries.net taurus.gi taxamo.com tens.ooo tesla.com thekahala.jp tigerairtw.com tribe.so tripla.jp tvtime.com twahotel.com twgcareers.co.nz usbank.com usp-onderzoek.nl valtech.com ventaspromerica.com.gt voya.com walmart.com wantedlab.com warnerbros.com wfcorp.com white-spunner.com willowpump.com wine.com.br wyze.com yalo.com.br yourcare.health

= recognized high-volume sender   Based on custom PTR records. Senders using default ESP reverse DNS are counted as active but not individually identified.

IP audit (254 IPs)

247 clean / 3 warning / 4 ghost
IPPTR hostnameSenderStatus
149.72.152.1 o2146.mail.organizzei.com organizzei.com CLEAN
149.72.152.6 o1.ptr2043.sipadconnect.fr sipadconnect.fr CLEAN
149.72.152.7 o1.no-reply.valtech.com valtech.com CLEAN
149.72.152.8 o52.sg.t.bestcolleges.com bestcolleges.com CLEAN
149.72.152.11 o1.ptr1939.wfcorp.com wfcorp.com CLEAN
149.72.152.12 o1.ptr4824.yalo.com.br yalo.com.br CLEAN
149.72.152.13 o2360.ptr8053.news.wine.com.br wine.com.br CLEAN
149.72.152.15 o2.ptr1515.edutopia.org edutopia.org CLEAN
149.72.152.25 o231.sg.premierleague.com premierleague.com CLEAN
149.72.152.27 o3175.abmail.email.willowpump.com willowpump.com CLEAN
149.72.152.30 o1656.abmail.em.walmart.com walmart.com CLEAN
149.72.152.33 o2.ptr7178.bluechew.com bluechew.com CLEAN
149.72.152.35 o1.ptr6310.bakaglass.nl bakaglass.nl CLEAN
149.72.152.36 o788.email.fleshlight.com fleshlight.com CLEAN
149.72.152.37 o1657.abmail.em.walmart.com walmart.com CLEAN
149.72.152.38 o1.ptr9402.analitica.com.co analitica.com.co CLEAN
149.72.152.39 o6.comms.afrihost.com afrihost.com CLEAN
149.72.152.40 o1.ptr2921.evosus.com evosus.com CLEAN
149.72.152.41 o3.ptr7698.inspiresolutions.com inspiresolutions.com CLEAN
149.72.152.42 o2.ptr4269.creditspring.co.uk creditspring.co.uk CLEAN
149.72.152.44 o1.app.surepact.com surepact.com CLEAN
149.72.152.46 o137.mta1.info.twahotel.com twahotel.com CLEAN
149.72.152.50 o1.ptr7652.projectsimpel.com projectsimpel.com CLEAN
149.72.152.51 o9.ptr8819.carrington.edu carrington.edu CLEAN
149.72.152.53 o3.ptr6482.okrx.ca okrx.ca CLEAN
149.72.152.54 o2.ptr1616.outlinesolutions.nl outlinesolutions.nl CLEAN
149.72.152.55 o2.powered-by.liblynx.com liblynx.com CLEAN
149.72.152.56 o4.ptr2613.ats.sense.org.uk sense.org.uk CLEAN
149.72.152.60 o10.ptr5011.brazzersplus.com brazzersplus.com CLEAN
149.72.152.64 o139.mta1.stay.broadmoor.com broadmoor.com CLEAN
149.72.152.67 o140.mta1.info.broadmoor.com broadmoor.com CLEAN
149.72.152.69 o2.sg.psionline.com psionline.com CLEAN
149.72.152.70 o1.updates.hunniez.com hunniez.com CLEAN
149.72.152.72 o2.mk2.asgtrans.es asgtrans.es CLEAN
149.72.152.74 wrqvwvqx.outbound-mail.sendgrid.net
b
b.barracudacentral.org
Typically auto-expires within 24-48h if abuse stops.
149.72.152.75 o488.send.bobswatches.com bobswatches.com CLEAN
149.72.152.79 o1778.beforepay.com.au beforepay.com.au CLEAN
149.72.152.80 o296.ptr591.jobalerts.twgcareers.co.nz twgcareers.co.nz CLEAN
149.72.152.81 o145.mta1.yokohama.thekahala.jp thekahala.jp CLEAN
149.72.152.83 o1.ptr6074.sgmail.malmbergs.com malmbergs.com CLEAN
149.72.152.85 o2.ptr8565.creditstrong.com creditstrong.com CLEAN
149.72.152.87 o148.mta1.reservation.madisonhotel.de madisonhotel.de CLEAN
149.72.152.89 o48.sg.t.creditcards.com creditcards.com CLEAN
149.72.152.90 o2745.abmail.hello.wyze.com wyze.com CLEAN
149.72.152.91 o3.statements.usbank.com usbank.com CLEAN
149.72.152.93 o1.ptr1319.curbio.com curbio.com CLEAN
149.72.152.96 o836.europe.flxprogram.com flxprogram.com CLEAN
149.72.152.97 o1.ptr5716.catalog2.swanlibraries.net swanlibraries.net CLEAN
149.72.152.101 o1.ptr7564.adbsafegate.com adbsafegate.com CLEAN
149.72.152.102 o1.ptr2330.tribe.so tribe.so CLEAN
149.72.152.104 o872.em.email.moviesunlimited.com moviesunlimited.com CLEAN
149.72.152.108 o366.ptr9057.voya.com voya.com CLEAN
149.72.152.109 o1438.send.chemistwarehouse.co.nz chemistwarehouse.co.nz CLEAN
149.72.152.110 o10.esp.email.taurus.gi taurus.gi CLEAN
149.72.152.113 o781.b.greatergood.com greatergood.com CLEAN
149.72.152.114 o1.ptr9484.mismainstay.com mismainstay.com CLEAN
149.72.152.115 o7.mail.notifications.warnerbros.com warnerbros.com CLEAN
149.72.152.117 o1.ptr5320.businesschat.io businesschat.io CLEAN
149.72.152.119 o2.ptr6582.skrapp.io skrapp.io CLEAN
149.72.152.120 o1.ptr5091.support-lavie.jp support-lavie.jp CLEAN
149.72.152.122 o1.email.taxamo.com taxamo.com CLEAN
149.72.152.123 o1.ptr8016.classnk.or.jp classnk.or.jp CLEAN
149.72.152.124 o1.ptr382.joinclubhouse.com joinclubhouse.com CLEAN
149.72.152.125 o7.ptr7200.membercentral.com membercentral.com CLEAN
149.72.152.126 o2.ptr53.pyramidci.com pyramidci.com CLEAN
149.72.152.127 o1.ptr4935.portailmica.com portailmica.com CLEAN
149.72.152.129 o4.ptr3808.em9788.eltezam.ae eltezam.ae CLEAN
149.72.152.132 o2.ptr3760.tripla.jp tripla.jp CLEAN
149.72.152.133 o1.ptr2135.emlpayments.com.au emlpayments.com.au CLEAN
149.72.152.134 o1.ptr4729.lunasea-slave.jp lunasea-slave.jp CLEAN
149.72.152.135 o143.ptr1597.housinghelpportal.com housinghelpportal.com CLEAN
149.72.152.136 o4.ptr6882.seamlessinvites.com seamlessinvites.com CLEAN
149.72.152.138 o1.ptr6667.gyreteams.com gyreteams.com CLEAN
149.72.152.140 o1.ptr5177.cmsmail.net cmsmail.net CLEAN
149.72.152.141 o2.ptr1322.buildmycreditscore.com buildmycreditscore.com CLEAN
149.72.152.143 o375.ptr993.brooklynjeepsales.com brooklynjeepsales.com CLEAN
149.72.152.147 o1.ptr1456.axon.com axon.com CLEAN
149.72.152.148 o1.ptr3076.iowataxandtags.org iowataxandtags.org CLEAN
149.72.152.149 o7.ptr895.tvtime.com tvtime.com CLEAN
149.72.152.150 o2.ptr1498.coffee-roulette.com coffee-roulette.com CLEAN
149.72.152.151 o1.ptr7491.inclusa.org inclusa.org CLEAN
149.72.152.152 o2.ptr3622.lsi-qa.khoros-mail.com khoros-mail.com CLEAN
149.72.152.154 o1750.abmail.nestor-par-maif.fr nestor-par-maif.fr CLEAN
149.72.152.155 o4.ptr7714.ep.autovision.com autovision.com CLEAN
149.72.152.157 o43.ptr7362.email.eclub.se eclub.se CLEAN
149.72.152.158 o1740.abmail.mail.covetfashion.com covetfashion.com CLEAN
149.72.152.159 o9.ptr6143.comettracker.com comettracker.com CLEAN
149.72.152.160 o60.ptr2813.servicetitanmail.io servicetitanmail.io CLEAN
149.72.152.162 o4.ptr2107.mediaos.com mediaos.com CLEAN
149.72.152.167 o38.ptr8006.white-spunner.com white-spunner.com CLEAN
149.72.152.168 o822.em.info.sts.pl sts.pl CLEAN
149.72.152.169 o1.ptr1320.anna.money anna.money CLEAN
149.72.152.171 o1.sg.hello.ellevatenetwork.com ellevatenetwork.com CLEAN
149.72.152.173 o1.ptr5298.usp-onderzoek.nl usp-onderzoek.nl CLEAN
149.72.152.174 o1.ptr5993.bertramcommunications.com bertramcommunications.com CLEAN
149.72.152.175 o2.ptr1872.hopewdm.org hopewdm.org CLEAN
149.72.152.176 o306.ptr2832.tigerairtw.com tigerairtw.com CLEAN
149.72.152.177 o1.ptr7833.quakerwindows.com quakerwindows.com CLEAN
149.72.152.178 o2.outbound.dmtc.com dmtc.com CLEAN
149.72.152.179 o9.ptr6722.solucx.com.br solucx.com.br CLEAN
149.72.152.187 o1.ptr1104.psychology.org.au psychology.org.au CLEAN
149.72.152.188 o2.ptr6962.integrative9.com integrative9.com CLEAN
149.72.152.190 o1.ptr872.silkcode.de silkcode.de CLEAN
149.72.152.191 o3170.abmail.activation.depop.com depop.com CLEAN
149.72.152.192 wrqvwvch.outbound-mail.sendgrid.net
b
b.barracudacentral.org — http://www.barracudanetworks.com/reputation/?pr=1&ip=149.72.152.192
Typically auto-expires within 24-48h if abuse stops.
149.72.152.195 o1.ptr555.pandorabeauty.com pandorabeauty.com CLEAN
149.72.152.196 o1183.ptr5156.mailer.jiomart.com jiomart.com CLEAN
149.72.152.198 o1.ptr562.cookaborough.com cookaborough.com CLEAN
149.72.152.199 o1.ptr3161.suncoastcreditunion.com suncoastcreditunion.com CLEAN
149.72.152.200 o3.ptr7482.radicalstorage.com radicalstorage.com CLEAN
149.72.152.204 o8.ptr7298.jitan.metro.tokyo.lg.jp lg.jp CLEAN
149.72.152.206 o2920.em.email.monkeytilt.com monkeytilt.com CLEAN
149.72.152.207 o2.em7102.gopfs.com gopfs.com CLEAN
149.72.152.209 o618.em.mail.kakeyo.com kakeyo.com CLEAN
149.72.152.211 o1.ptr4762.edvoy.com edvoy.com CLEAN
149.72.152.216 o2.ptr4360.logonbox.com logonbox.com CLEAN
149.72.152.217 wrqvwvdw.outbound-mail.sendgrid.net
b
b.barracudacentral.org — http://www.barracudanetworks.com/reputation/?pr=1&ip=149.72.152.217
Typically auto-expires within 24-48h if abuse stops.
149.72.152.218 o3.ptr6535.m.nectr.com.au nectr.com.au CLEAN
149.72.152.219 o1.notification.ol.fr.ol.fr ol.fr CLEAN
149.72.152.220 o1842.abmail.daily.abide.co abide.co CLEAN
149.72.152.221 o1843.abmail.email.abide.co abide.co CLEAN
149.72.152.222 o1.ptr2766.fotoinc.com fotoinc.com CLEAN
149.72.152.224 o782.b.greatergood.com greatergood.com CLEAN
149.72.152.225 o1.ptr7168.yourcare.health yourcare.health CLEAN
149.72.152.226 o2636.abmail.newsletter.wantedlab.com wantedlab.com CLEAN
149.72.152.227 o2735.pp6.promo.infodailyobjects.in infodailyobjects.in CLEAN
149.72.152.228 o1.ptr3223.khl.com khl.com CLEAN
149.72.152.231 o783.b.greatergood.com greatergood.com CLEAN
149.72.152.235 o2181.em.ventaspromerica.com.gt ventaspromerica.com.gt CLEAN
149.72.152.236 o3.ptr1444.tesla.com tesla.com CLEAN
149.72.152.237 o1.ptr4203.iese.edu iese.edu CLEAN
149.72.152.240 o1.ptr5590.tens.ooo tens.ooo CLEAN
149.72.152.241 o1.helix.digitalaviationservices.com digitalaviationservices.com CLEAN
149.72.152.242 o3178.abmail.keeper.keepersecurity.com keepersecurity.com CLEAN
149.72.152.244 o3179.abmail.mail.keepersecurity.com keepersecurity.com CLEAN
149.72.152.245 o2.ptr7190.healthtrustws.com healthtrustws.com CLEAN
149.72.152.249 o3171.abmail.mail.willowpump.com willowpump.com CLEAN
149.72.152.250 o116.ilmoitukset.creamailer.fi creamailer.fi CLEAN
149.72.152.251 o52.ptr5032.em696.gap.com.mx gap.com.mx CLEAN
149.72.152.252 o4.mailer.shopify.com shopify CLEAN
4 ghost IPs (no PTR)  +  110 clean IPs — no brand signal

Recommended actions

MONITOR
3 IPs on moderate blacklists
IPs on SpamCop, Barracuda, or DroneRBL. These typically auto-expire within 24-48 hours. No action needed unless they persist across rescans.
VERDICT
Buy at market rate
Clean block with 98% occupancy and no critical blacklist issues. Fair price: $35-45/IP based on current IPv4 market rates.
NOTE
Rescan recommended — blacklist data incomplete
3/10 RBLs were unreachable during this scan. Run another scan in 1-2 hours for full coverage. Consider this report's blacklist data a lower bound — there may be additional listings.

Methodology

This report scanned all 254 usable IPs in 149.72.152.0/24.

Note: 3 RBLs failed canary verification and were excluded: combined.abuse.ch, spam.dnsbl.sorbs.net, dnsbl.sorbs.net. Blacklist results may be incomplete.