1. CORA ASR Gateway 27.0/ASOG 52 Release March 2016

2. ASOG 52/CORA ASR Gateway – 27.0 CenturyLink will implement the ASOG Version 52 Industry Standard changes to the ASR forms and fields effective on March 19, 2016. These changes were decided upon at an industry level with participating members of the OBF Committees. For detailed information about the changes, refer to the ATIS website: http://www.atis.org/ http://www.atis.org/ In support of the release, CenturyLink will implement upfront validations in the CORA (CenturyLink Online Request Application) ASR Gateway impacting all ASRs being transmitted through CORA electronically via the web-based CORA GUI, or through direct connections, such as NDM or UOM interfaces. 2

3. ASOG Changes ASOG 52

4. ASOG 52: ASOG Issues included in this Release 4 ATIS Issue NumberDescriptionChampion 3519 Wireless Site Indicator Enhancements – Removal of WSI, Addition of WSI-P, WSI-S fields Verizon 3529 Expand BAN/HBAN/MAN field – Character expansion to 13 characters Comcast 3530 Modify EU Field Usage Verizon 3531 Address ASOG 4-Step process and the term ‘Service Request’ - replacement thru ASOG to Service Inquiry ASO Committee 3532 Modify GETO field to identify regulated entrance facility – Addition of value F to Transport GETO field AT&T 3533 Modify Access Tel Extension fields on Practice 015 – Character expansion to 7 characters CenturyLink 3535 Update Practices to support Color Aware attributes for Ethernet Services – CI field to SES form, P-BITC-I and P-BITC-E to EVC form Verizon 3537 Modify S-VLAN field – usage update – CEVLAN not required on Change order Verizon 3538 Modify EDA field – usage update – Add valid entry of N Verizon 3539 Update NCON Rule – addition to allow on SES form AT&T Wireless 3540 Multi-Chassis (MCLAG) – addition of MCLAG, MCLAG-ID, MCLAG-P fields CenturyLink 3541 Add LOA to CFA pre-order validation – UOM modification and internal updates CenturyLink

5. ASR 52 – New and Modified Fields ASR formNew FieldChangeIssue ASRWSI-PWireless Site Indicator - PRILOC3519 SESCIColor Identifier3535 SESMCLAGMulti-Chassis Link Aggregation Group3540 SESMCLAG-IDMulti-Chassis Link Aggregation Group ID3540 CNMCLAG-IDMulti-Chassis Link Aggregation Group ID3540 EVCP-BITC-IPriority Bit Color Ingress3535 EVCP-BITC-EPriority Bit Color Egress3535 5 ASR formModified FieldChangeIssue ASRBANIncrease to 13 characters3529 ASREDAAddition of value of ‘N’ for Early Acceptance not authorized3538 ASRWSIField will be modified to WSI-S (Wireless Site Indicator - SECLOC)3519 CNBANIncrease to 13 characters3529 MECBANIncrease to 13 characters3529 SALIACTELIncrease to 17 characters3533 SALIAACTELIncrease to 17 characters3533 SALIALCON TELIncrease to 17 characters3533 SALIAALCON TELIncrease to 17 characters3533 TRANSPORTGETOAddition of value of ‘F’ – Provide entrance facility from curb to MPOE3532

6. CORA 27.0 Edits and Enhancements CORA 27.0

7. CORA 27.0: New or Changed Fields Increase the length of BAN field from 12 to 13 characters on ASR, CN, Multi-EC forms. Increase the length of Access Tel Extension fields (ACTEL, AACTEL, AALCON) from 4 to 7 characters on SALI form. The WSI (Wireless Site Indicator) field on the ASR form is being split into two new fields, WSI-S and WSI-P. WSI is moving to WSI-S. Valid values were N or E and now will become Y. -When WSI =N OR E, SEI = Y, ACTL is blank, then convert WSI to WSI-P =Y and WSI-S =BLANK. -When WSI = N or E, SEI = Y and ACTL is populated, then convert WSI to WSI-P = BLANK (because this is a MTSO) and WSI-S = BLANK. -When WSI = N or E, SEI is blank, then convert WSI to WSI-P=BLANK and WSI-S = Y. Multi-Chassis (MCLAG) – New fields added to SES form. MCLAG, MCLAG-ID, and MCLAG-P. MCLAG-ID also added to CN form. -These fields are not used and are prohibited. -CenturyLink processes will not be utilizing these fields. -This field will be grayed out in CORA GUI and ignored if populated in OM/NDM applications. 7