Yeah I had later noticed that too. Much of the US companies do end up resolving to IPv6.

100% of the aforementioned US gov domains resolve to IPv6.

More 5G networks than not are using IPv6 and 464xlat. Many ISPs are IPv6 only too so closer to half the time than not there are IPv6 packets to reach to those IPv4 addresses.

  $   for  USCompany  in    apple akamai att berkshire bestbuy boeing bofa burgerking cnn chase chevron citi comcast costco cvs dell disney fedex fidelity gatorade google goldmansachs gopro hellofresh hilton homedepot infowars in-n-out jcpenny johnsonandjohnson kaiser kroger lulumon macys mcdonalds microsoft nike pepsi petco radioshack safeway shell southwest sprouts statefarm tacobell target tesla traderjoes ups usbank uschamber walgreens walmart wellsfargo wholefoods yahoo    aquantuo atlanticseafarms beehivemeals beetlesplumbing dynamicautomotive jamies-farm joeandbella jovyco privacy4cars prosperityehr redroostercoffee resortlifecarts sproutlabs tradedesignbuild 
    do
      echo ${USCompany}
      dig +short aaaa www.${USCompany}.com
      echo  ; done
  apple
  www-apple-com.v.aaplimg.com.
  www.apple.com.edgekey.net.
  e6858.dsce9.akamaiedge.net.
  2600:1406:3a00:493::1aca
  2600:1406:3a00:492::1aca
  2600:1406:3a00:494::1aca
  2600:1406:3a00:486::1aca
  2600:1406:3a00:48a::1aca
  
  akamai
  www.akamai.com.edgekey.net.
  2600:1406:2e00:49::172e:d8cf
  2600:1406:2e00:49::172e:d8c6
  
  att
  prod-www.zr-att.com.akadns.net.
  cac2.m.att.com.edgekey.net.
  e11697.cd.akamaiedge.net.
  
  berkshire
  3tfzq88u2cbx.wpeproxy.com.
  
  bestbuy
  www.bestbuy.com.edgekey.net.
  e5816.x.akamaiedge.net.
  
  boeing
  d1pt7e7bvjlgwo.cloudfront.net.
  2600:9000:24bc:7a00:16:a4e1:f600:93a1
  2600:9000:24bc:3600:16:a4e1:f600:93a1
  2600:9000:24bc:b400:16:a4e1:f600:93a1
  2600:9000:24bc:e000:16:a4e1:f600:93a1
  2600:9000:24bc:6e00:16:a4e1:f600:93a1
  2600:9000:24bc:be00:16:a4e1:f600:93a1
  2600:9000:24bc:fc00:16:a4e1:f600:93a1
  2600:9000:24bc:c000:16:a4e1:f600:93a1
  
  bofa
  redirect.ecglb.bac.com.
  
  burgerking
  prod-bk-us-web.com.rbi.tools.
  
  cnn
  cnn-tls.map.fastly.net.
  2a04:4e42:200::773
  2a04:4e42:400::773
  2a04:4e42:600::773
  2a04:4e42::773
  
  chase
  gtm.www.chase.com.akadns.net.
  www.chase.com.edgekey.net.
  e129412.a.akamaiedge.net.
  
  chevron
  www-afd-b9aycqabggbkcsdt.z01.azurefd.net.
  mr-z01.tm-azurefd.net.
  2603:1061:14:95::1
  
  citi
  san.www.citi.com.edgekey.net.
  e16976.x.akamaiedge.net.
  
  comcast
  www.comcast.com.edgekey.net.
  e523.dscb.akamaiedge.net.
  2600:1406:3a00:482::20b
  2600:1406:3a00:48d::20b
  
  costco
  costco.map.fastly.net.
  
  cvs
  www.cvs.edgekey.net.
  e5769.x.akamaiedge.net.
  
  dell
  www1.dell-cidr.akadns.net.
  cdn-www.dell.com-v2.edgekey.net.
  e13665.x.akamaiedge.net.
  
  disney
  www-cdn.matterhorn.app.
  
  fedex
  www.fedex.com.akadns.net.
  cidr.fedex.com.akadns.net.
  ipv6www.fedex.com.edgekey.net.
  e111296.dsca.akamaiedge.net.
  2600:1406:2e00:49::172e:d8cc
  2600:1406:2e00:49::172e:d8c8
  2600:1406:2e00:49::172e:d8d0
  2600:1406:2e00:49::172e:d8ca
  2600:1406:2e00:49::172e:d8c4
  
  fidelity
  www.fidelity.com.edgekey.net.
  e94446.x.akamaiedge.net.
  
  gatorade
  2606:4700:4409::ac40:9261
  2a06:98c1:3105::6812:299f
  
  google
  2001:4860:482d:7700::
  2001:4860:482a:7700::
  2001:4860:4828:7700::
  2001:4860:4827:7700::
  2001:4860:482c:7700::
  2001:4860:4826:7700::
  2001:4860:4829:7700::
  2001:4860:482b:7700::
  
  goldmansachs
  www.gs.com.
  www.gs.com.edgekey.net.
  e17133.x.akamaiedge.net.
  
  gopro
  d1h7n50c10z72v.cloudfront.net.
  2600:9000:201e:6800:17:765c:a5c0:93a1
  2600:9000:201e:4c00:17:765c:a5c0:93a1
  2600:9000:201e:a200:17:765c:a5c0:93a1
  2600:9000:201e:2400:17:765c:a5c0:93a1
  2600:9000:201e:a800:17:765c:a5c0:93a1
  2600:9000:201e:fe00:17:765c:a5c0:93a1
  2600:9000:201e:ca00:17:765c:a5c0:93a1
  2600:9000:201e:c200:17:765c:a5c0:93a1
  
  hellofresh
  www.hellofresh.com.cdn.cloudflare.net.
  2606:4700:4409::6812:209d
  2a06:98c1:3106::ac40:9b63
  
  hilton
  www.hilton.com.edgekey.net.
  e2904.dscx.akamaiedge.net.
  2600:1406:2e00:49a::b58
  2600:1406:2e00:4a3::b58
  
  homedepot
  www.homedepot.com.edgekey.net.
  e301254.x.akamaiedge.net.
  
  infowars
  2606:4700:10::6814:1a60
  2606:4700:10::ac42:9d27
  
  in-n-out
  sw6cs.x.incapdns.net.
  
  jcpenny
  www.jcpenny.com.edgesuite.net.
  a1441.b.akamai.net.
  
  johnsonandjohnson
  prod.jnj.psdops.com.
  
  kaiser
  kaiser.com.
  2001:1ab0:7e1e:151::58
  
  kroger
  www.kroger.com.edgekey.net.
  e8023.a.akamaiedge.net.
  
  lulumon
  lulumon.com.
  
  macys
  www.macys.com.edgekey.net.
  e5791.a.akamaiedge.net.
  
  mcdonalds
  direct-san.mcdonalds.com.edgekey.net.
  e179224.a.akamaiedge.net.
  
  microsoft
  www.microsoft.com-c-3.edgekey.net.
  e13678.dscb.akamaiedge.net.
  2600:1406:3a00:487::356e
  2600:1406:3a00:486::356e
  2600:1406:3a00:497::356e
  2600:1406:3a00:481::356e
  2600:1406:3a00:482::356e
  
  nike
  www.nike.com-v1.edgekey.net.
  e2785.x.akamaiedge.net.
  
  pepsi
  g2wh497.x.incapdns.net.
  
  petco
  2a06:98c1:3108::6812:20c7
  2a06:98c1:310a::ac40:9b39
  
  radioshack
  prod.magentocloud.map.fastly.net.
  2a04:4e42::380
  2a04:4e42:200::380
  2a04:4e42:400::380
  2a04:4e42:600::380
  
  safeway
  htu5x69.x.incapdns.net.
  
  shell
  www.nic.shell.edgekey.net.
  e200089.dscb.akamaiedge.net.
  2600:1406:3a00:33::170b:cfef
  2600:1406:3a00:33::170b:cfe6
  
  southwest
  www.southwest.com.edgekey.net.
  e7466.a.akamaiedge.net.
  
  sprouts
  2606:4700:10::ac42:9705
  2606:4700:10::6814:2445
  
  statefarm
  statefarm.edgekey.net.
  e124943.a.akamaiedge.net.
  
  tacobell
  www.tacobell-prod.com.edgekey.net.
  e78335.b.akamaiedge.net.
  
  target
  sites.target.map.fastly.net.
  
  tesla
  www.tesla.com.edgekey.net.
  e1792.dscx.akamaiedge.net.
  2600:1406:3a00:291::700
  2600:1406:3a00:280::700
  2600:1406:3a00:293::700
  2600:1406:3a00:290::700
  2600:1406:3a00:296::700
  
  traderjoes
  www.traderjoes.com.edgekey.net.
  e4528.b.akamaiedge.net.
  
  ups
  ev.ups.com.akadns.net.
  ev2b.ups.com.edgekey.net.
  e13626.dsca.akamaiedge.net.
  2600:1406:2e00:986::353a
  2600:1406:2e00:98b::353a
  2600:1406:2e00:983::353a
  2600:1406:2e00:984::353a
  
  usbank
  www.usbank.com.edgekey.net.
  e374753.a.akamaiedge.net.
  
  uschamber
  uschamber.map.fastly.net.
  
  walgreens
  walgreens.com.edgekey.net.
  e36070.dsca.akamaiedge.net.
  2600:1406:2e00:20::45c0:8be8
  2600:1406:2e00:20::45c0:8bda
  
  walmart
  www.walmart.com.cdn-wal.net.
  
  wellsfargo
  www.wellsfargo.com.edgekey.net.
  e82164.b.akamaiedge.net.
  
  wholefoods
  2600:9000:25ef:c800:8:df9e:eb80:93a1
  2600:9000:25ef:e000:8:df9e:eb80:93a1
  2600:9000:25ef:7400:8:df9e:eb80:93a1
  2600:9000:25ef:6400:8:df9e:eb80:93a1
  2600:9000:25ef:ca00:8:df9e:eb80:93a1
  2600:9000:25ef:9e00:8:df9e:eb80:93a1
  2600:9000:25ef:5400:8:df9e:eb80:93a1
  2600:9000:25ef:fa00:8:df9e:eb80:93a1
  
  yahoo
  me-ycpi-cf-www.g06.yahoodns.net.
  2001:4998:18:800::4003
  2001:4998:18:800::4002
  
  aquantuo
  2606:4700:20::681a:2e
  2606:4700:20::681a:12e
  2606:4700:20::ac43:4547
  
  atlanticseafarms
  2606:4700:3033::6815:4581
  2606:4700:3035::ac43:d0b4
  
  beehivemeals
  beehivemeals.myshopify.com.
  shops.myshopify.com.
  2620:127:f00f:e::
  
  beetlesplumbing
  s.multiscreensite.com.
  global.multiscreensite.com.
  a3c02b2530d6f27ca.awsglobalaccelerator.com.
  
  dynamicautomotive
  dynamicautomotive.com.
  
  jamies-farm
  shops.myshopify.com.
  2620:127:f00f:e::
  
  joeandbella
  joebella.myshopify.com.
  shops.myshopify.com.
  2620:127:f00f:e::
  
  jovyco
  jovy-brand.myshopify.com.
  shops.myshopify.com.
  2620:127:f00f:e::
  
  privacy4cars
  2606:4700:20::681a:dca
  2606:4700:20::ac43:4af6
  2606:4700:20::681a:cca
  
  prosperityehr
  2606:4700:10::6814:2f68
  2606:4700:10::ac42:94bd
  
  redroostercoffee
  cname.vercel-dns.com.
  
  resortlifecarts
  sprod-dnn-gce6a8hab5g5bkf6.a03.azurefd.net.
  mr-a03.tm-azurefd.net.
  2603:1061:14:99::1
  
  sproutlabs
  cdn.webflow.com.
  2620:cb:2000::1
  
  tradedesignbuild
  ext-sq.squarespace.com.



  $   for  USent  in    cia congress dhs epa ice fbi fcc nasa nsa whitehouse
    do
      echo ${USent}
      dig +short aaaa www.${USent}.gov
      echo  ; done
  cia
  cia.gov.edgekey.net.
  e10004744.dsca.akamaiedge.net.
  2600:1406:3a00:33::170b:cfeb
  2600:1406:3a00:33::170b:cff2
  
  congress
  2606:4700:4402::ac40:90ce
  2a06:98c1:3109::6812:2b32
  
  dhs
  www.dhs.gov.edgekey.net.
  e6485.dsca.akamaiedge.net.
  2600:1406:2e00:98b::1955
  2600:1406:2e00:983::1955
  
  epa
  d32i4z0dxazdtp.cloudfront.net.
  2600:9000:201e:a600:10:f3db:af40:93a1
  2600:9000:201e:f400:10:f3db:af40:93a1
  2600:9000:201e:6000:10:f3db:af40:93a1
  2600:9000:201e:c400:10:f3db:af40:93a1
  2600:9000:201e:b600:10:f3db:af40:93a1
  2600:9000:201e:d200:10:f3db:af40:93a1
  2600:9000:201e:d600:10:f3db:af40:93a1
  2600:9000:201e:6400:10:f3db:af40:93a1
  
  ice
  www.ice.gov.edgekey.net.
  e6485.dsca.akamaiedge.net.
  2600:1406:2e00:98b::1955
  2600:1406:2e00:983::1955
  
  fbi
  www.fbi.gov.cdn.cloudflare.net.
  2606:4700::6810:94f4
  2606:4700::6810:95f4
  
  fcc
  www.fcc.gov.edgekey.net.
  e4909.dscb.akamaiedge.net.
  2600:1406:3a00:484::132d
  2600:1406:3a00:497::132d
  
  nasa
  nasa-gov.go-vip.net.
  2a04:fa87:fffd::c000:426c
  
  nsa
  nsa.gov.edgekey.net.
  e16248.dscb.akamaiedge.net.
  2600:1406:3a00:487::3f78
  2600:1406:3a00:496::3f78
  
  whitehouse
  wh47.go-vip.net.
  2a04:fa87:fffd::c000:4233