Exhibit 4.2

. ZQ|CERT#|COY|CLS|RGSTRY|ACCT#|TRANSTYPE|RUN#|TRANS#COMMON STOCK COMMON STOCKPO PAR VALUE $0.01MR ADD ADD ADD ADD 43 2 1 A BOXDESIGNATION SAMPLE Certificate Shares 43004, * * 000000 ******************(IF Number * * * 000000 *****************ANY) ZQ00000000**** 000000 ****************Providence, SBA COMMUNICATIONS CORPORATION ***** 000000 ***************RI ****** 000000 ************** INCORPORATED UNDER THE LAWS OF THE STATE OF FLORIDA** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample 02940 **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David- THIS CERTIFIES THAT Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. AlexanderDavid Sample **** Mr. MR. Alexander David SAMPLE Sample **** Mr. Alexander David &Sample MRS. **** Mr. Alexander SAMPLE David Sample **** Mr. Alexander & David Sample **** Mr. CUSIP 78410G 10 4 3004 Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander MR. David Sample SAMPLE **** Mr. Alexander David Sample **** &Mr. Alexander MRS. David Sample SAMPLE **** Mr. Alexander David Sample **** Mr. AlexanderSEE REVERSE FOR CERTAIN DEFINITIONSDavid Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Sample **** Mr. Sampleis the owner of **000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares*** *000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares**** 000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****0 00000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****00 ***ZERO?HUNDRED THOUSAND0000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000 000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****0000 00**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****00000 0**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000 ZERO HUNDRED AND ZERO*** **Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000* *Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000** Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**SFULLY PAID AND NON-ASSESSABLE SHARES OF CLASS A COMMON STOCK, PAR VALUE $.01 PER SHARE OFSBA Communications Corporation, transferable only the books of the Corporation by the holder hereof in Total DTC person or by duly authorized Attorney upon surrender of this Certificate properly endorsed. Holder CUSIP Number Certificateof Insurance ID In Witness Whereof, the said Corporation has caused this certificate to be signed by its duly authorized officers Value and to be sealed with the Seal of the Corporation.Transaction 1234567890/1234567890 1234567890/1234567890 1234567890/1234567890 1234567890/1234567890 1234567890/1234567890 1234567890/1234567890 Numbers Shares DATED DD-MMM-YYYYFACSIMILE SIGNATURE TO COME CATIONS COUNTERSIGNED AND REGISTERED:NI PO C12345678901234512345678 OR RA O COMPUTERSHARE TRUST COMPANY, N.A.Num/No M U C TE RPDenom. President TRANSFER?AGENT AND?REGISTRAR,O M O R666 555 444 333 222 111 C AI TA OB NS FL DAXXXXXX ORITotal. FACSIMILE SIGNATURE TO COME7 00.1,000,000 XX123456 XXXXXXXXXX X BySecretary AUTHORIZED?SIGNATURE

. SBA COMMUNICATIONS CORPORATIONTHE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO THE RESTRICTIONS ON TRANSFERABILITY AND OWNERSHIP THAT ARE SPECIFIED IN THE AMENDED AND RESTATED ARTICLES OF INCORPORATION OF THE CORPORATION. THE CORPORATION WILL FURNISH A FULL STATEMENT DESCRIBING THE RESTRICTIONS ON TRANSFERABILITY AND OWNERSHIP TO THE HOLDER OF THE SHARES REPRESENTED BY THIS CERTIFICATE ON REQUEST AND WITHOUT CHARGE.The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or regulations:TEN COM—as tenants in common UNIF GIFT MIN ACT -Custodian(Cust) (Minor)TEN ENT—as tenants by the entireties under Uniform Gifts to Minors Act(State)JT TEN—as joint tenants with right of survivorship UNIF?TRF MIN ACT -Custodian (until age) and not as tenants in common (Cust) under Uniform Transfers to Minors Act(Minor) (State)Additional abbreviations may also be used though not in the above list.PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEEFor value received, hereby sell, assign and transfer unto (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING POSTAL ZIP CODE, OF ASSIGNEE) Shares represented by the within Certificate, and do hereby irrevocably constitute and appoint Attorney to transfer the said stock on the books of the within-named Corporation with full power of substitution in the premises.Dated: 20_Signature(s) Guaranteed: Medallion Guarantee StampTHE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (Banks, Stockbrokers, Savings and Loan Associations and Credit Unions) WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15.Signature: Signature: Notice: The signature to this assignment must correspond with the name as written upon the face of the certificate, in every particular, without alteration or enlargement, or any change whatever.The IRS requires that the named transfer agent (“we”) report the cost basis of certain shares or units acquired after January 1, 2011. If your shares or units are covered by the legislation, and you requested to sell or transfer the shares or units using a specific cost basis calculation method, then we have processed as you requested. If you did not specify a cost basis calculation method, then we have defaulted to the first in, first out (FIFO) method. Please consult your tax advisor if you need additional information about cost basis. If you do not keep in contact with the issuer or do not have any activity in your account for the time period specified by state law, your property may become subject to state unclaimed property laws and transferred to the appropriate state.