MDC Holdings
MDC Holdings uses 688 IPv4 addresses in 18 ranges, and 1 IPv6 range, by the registry records IP Company reads.
Who routes its space
The networks announcing its IPv4, by the addresses each announces.
- AS701 Verizon Business288 · 41.86%
- AS3356 Level 3 Parent, LLC256 · 37.21%
- AS19855 Masergy Communications, Inc.76 · 11.05%
- AS174 Cogent Communications, LLC16 · 2.33%
- AS209 CenturyLink Communications, LLC16 · 2.33%
- AS7018 AT&T Enterprises, LLC16 · 2.33%
- AS1136 KPN B.V.8 · 1.16%
- AS7922 Comcast Cable Communications, LLC8 · 1.16%
- AS33363 Charter Communications, Inc4 · 0.58%
Where its space is
Its IPv4 that IP Geolocation places, by country. A /24 counts for the company using most of it.
- United States512 · 100.00%
Networks it operates
The autonomous systems registered under its domain, by the IPv4 each announces anywhere.
| ASN | NAME | TYPE | REGISTERED | IPV4 |
|---|---|---|---|---|
| AS18514 | M.D.C. Holdings, Inc. | Business | United States | 0 |
What the databases see
Addresses each address-keyed database holds in its IPv4, as a share of it, with the largest providers. A /24 counts for the company using most of it; counts overlap.
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- Carrier IP256Verizon37.21%
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
Its address ranges
Its largest IPv4 ranges, then its IPv6 ones, as IP Company draws them, a CIDR a row, with the network announcing each.
| RANGE | IPV4 | ORIGIN |
|---|---|---|
| 63.78.126.0/24 | 256 | AS701 |
| 65.89.171.0/24 | 256 | AS3356 |
| 64.47.55.224/27 | 32 | AS19855 |
| 65.244.81.96/27 | 32 | AS701 |
| 204.94.162.160/28 | 16 | AS174 |
| 64.47.171.48/28 | 16 | AS19855 |
| 64.47.171.80/29 | 8 | AS19855 |
| 64.47.171.88/30 | 4 | AS19855 |
| 188.204.118.192/29 | 8 | AS1136 |
| 205.168.86.32/29 | 8 | AS209 |
| 50.214.11.104/29 | 8 | AS7922 |
| 65.157.21.32/29 | 8 | AS209 |
| 69.227.125.16/29 | 8 | AS7018 |
| 69.229.70.40/29 | 8 | AS7018 |
| 64.47.171.104/30 | 4 | AS19855 |
| 64.47.171.112/30 | 4 | AS19855 |
| 64.47.171.16/30 | 4 | AS19855 |
| 64.47.171.96/30 | 4 | AS19855 |
| 97.79.34.184/30 | 4 | AS33363 |
| 2605:a404:2539::/48 | AS33363 |
Names it registers under
The holder names its registry records give, by the IPv4 under each.
- MDC Holdings256 · 37.21%
- m.d.c. holdings inc256 · 37.21%
- M.D.C. Holdings, Inc.84 · 12.21%
- D & M HOLDINGS40 · 5.81%
- MDC HOLDINGS INC28 · 4.07%
- MDC Holding Inc16 · 2.33%
- Mdc Holding BV8 · 1.16%
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